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This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats(a)lists.apnic.net
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 20:00 +10GMT Fri 12 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113808
Prefixes after maximum aggregation: 73632
Unique aggregates announced to Internet: 53854
Total ASes present in the Internet Routing Table: 13333
Origin-only ASes present in the Internet Routing Table: 11543
Origin ASes announcing only one prefix: 5110
Transit ASes present in the Internet Routing Table: 1790
Transit-only ASes present in the Internet Routing Table: 50
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 22
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1180975672
Equivalent to 70 /8s, 100 /16s and 66 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46022
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18655
Total APNIC prefixes after maximum aggregation: 11077
Prefixes being announced from the APNIC address blocks: 17207
Unique aggregates announced from the APNIC address blocks: 10502
APNIC Region origin ASes present in the Internet Routing Table: 1558
APNIC Region origin ASes announcing only one prefix: 506
APNIC Region transit ASes present in the Internet Routing Table: 275
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 88702624
Equivalent to 5 /8s, 73 /16s and 126 /24s
Percentage of available APNIC address space announced: 58.3
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75831
Total ARIN prefixes after maximum aggregation: 48036
Prefixes being announced from the ARIN address blocks: 53877
Unique aggregates announced from the ARIN address blocks: 17995
ARIN Region origin ASes present in the Internet Routing Table: 7845
ARIN Region origin ASes announcing only one prefix: 2517
ARIN Region transit ASes present in the Internet Routing Table: 773
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 189355856
Equivalent to 11 /8s, 73 /16s and 87 /24s
Percentage of available ARIN address space announced: 70.5
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 23551
25600 - 26623
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19315
Total RIPE prefixes after maximum aggregation: 14519
Prefixes being announced from the RIPE address blocks: 16050
Unique aggregates announced from the RIPE address blocks: 9821
RIPE Region origin ASes present in the Internet Routing Table: 3881
RIPE Region origin ASes announcing only one prefix: 2087
RIPE Region transit ASes present in the Internet Routing Table: 719
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 116950816
Equivalent to 6 /8s, 248 /16s and 135 /24s
Percentage of available RIPE address space announced: 77.5
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1257 1207 899 Telstra Pty Ltd
4538 466 1258 18 China Education and Research
703 408 358 323 UUNET Technologies, Inc.
2907 366 1865 341 SINET Japan
2764 361 358 332 connect.com.au pty ltd
7474 311 291 207 Optus Communications Pty Ltd
17557 307 20 109 Pakistan Telecom
4755 301 116 82 Videsh Sanchar Nigam Ltd. Aut
4134 289 2112 106 Data Communications Bureau
9443 253 45 67 Primus Telecommunications
4766 248 1506 155 Korea Internet Exchange for "
4814 212 79 14 China Telecom (Group) - Beiji
9583 176 32 5 Satyam Infoway Ltd.,
17676 160 2482 27 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 129 22 87 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4780 123 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
4739 111 56 102 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 940 2443 778 UUNET Technologies, Inc.
3301 396 924 346 TeliaNet Sweden
3352 277 535 29 Ibernet, Internet Access Netw
3215 266 628 166 France Telecom / &Equant
3320 254 1946 193 Deutsche Telekom AG
5515 245 783 172 Sonera Finland Autonomous Sys
680 233 2149 230 DFN-IP service G-WiN
1257 206 430 203 SWIPnet Swedish IP Network
5400 205 83 94 Concert European Core Network
719 189 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 139 23 136 Romania Data Systems S.A.
3303 137 547 136 Swisscom Ltd
2856 128 787 118 BTnet UK Regional network
12302 122 17 34 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks / Clinet
5511 109 192 87 France Telecom
3233 104 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1852 9240 1378 UUNET Technologies, Inc.
7018 1294 7390 935 AT&T
3908 923 1643 501 Supernet, Inc.
1239 845 3355 660 Sprint
852 757 1175 451 Telus Advanced Communications
1 698 8075 447 GENUITY
7843 643 360 238 Adelphia Corp.
4323 626 438 257 Time Warner Communications, I
7132 579 659 133 Southwestern Bell Internet Se
7046 558 885 357 UUNET Technologies, Inc.
209 535 2010 347 Qwest
690 515 74 327 Merit Network
7066 482 203 252 Virginia Polytechnic Institut
7029 463 165 56 Alltel Information Services,
3549 440 839 316 Global Crossing
2149 438 180 332 Performance Systems, Inc.
2914 409 2100 386 Verio, Inc.
15290 379 297 194 AT&T Canada IES
6197 370 547 36 BellSouth Network Solutions,
6347 347 370 77 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 466 448 China Education and Research
7132 579 446 Southwestern Bell Internet Se
3908 923 422 Supernet, Inc.
7029 463 407 Alltel Information Services,
7843 643 405 Adelphia Corp.
4323 626 369 Time Warner Communications, I
7018 1294 359 AT&T
1221 1257 358 Telstra Pty Ltd
6197 370 334 BellSouth Network Solutions,
852 757 306 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 287 271 USDA
6347 347 270 SAVVIS Communications Corpora
4355 308 256 EarthLink, Inc.
1 698 251 GENUITY
3352 277 248 Ibernet, Internet Access Netw
7066 482 230 Virginia Polytechnic Institut
18566 229 225 Covad Communications
4755 301 219 Videsh Sanchar Nigam Ltd. Aut
7303 273 211 Telecom Argentina Stet-France
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
65003 PRIVATE 202.92.84.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.84.0/22 9837 Powertel Ltd
65003 PRIVATE 202.92.85.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.119.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.32.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.33.0/24 9837 Powertel Ltd
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.5.154.0/24 16588 Spider Web Hosting Solutions
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:6 /10:7 /11:12 /12:36
/13:87 /14:233 /15:416 /16:7249 /17:1451 /18:2650
/19:7678 /20:7363 /21:5171 /22:7936 /23:9664 /24:63168
/25:204 /26:168 /27:86 /28:68 /29:45 /30:74
/31:0 /32:17
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 583 940 UUNET Technologies, Inc.
3908 510 923 Supernet, Inc.
701 507 1852 UUNET Technologies, Inc.
690 457 515 Merit Network
7843 449 643 Adelphia Corp.
7066 387 482 Virginia Polytechnic Institut
7029 366 463 Alltel Information Services,
7018 350 1294 AT&T
6197 256 370 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
6198 238 310 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
18566 225 229 Covad Communications
1239 217 845 Sprint
7046 215 558 UUNET Technologies, Inc.
209 211 535 Qwest
3352 201 277 Ibernet, Internet Access Netw
1580 200 213 HQ, 5th Signal Command
3215 199 266 France Telecom / &Equant
1 191 698 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:504 13:10 15:2 17:6
20:3 24:798 25:1 32:41 38:9 40:6
44:1 57:13 61:277 62:221 63:1883 64:1258
65:1378 66:979 67:89 68:63 80:248 81:33
128:63 129:133 130:22 131:53 132:11 133:2
134:126 135:8 136:243 137:94 138:150 139:69
140:143 141:123 142:78 143:39 144:151 145:14
146:187 147:138 148:241 149:84 150:41 151:67
152:264 153:34 154:14 155:107 156:77 157:127
158:69 159:135 160:18 161:70 162:214 163:94
164:259 165:133 166:222 167:172 168:292 169:60
170:252 171:3 192:5456 193:2367 194:2093 195:905
196:410 198:3643 199:3192 200:2584 202:3313 203:4691
204:3281 205:2182 206:2686 207:2539 208:2647 209:2670
210:600 211:230 212:913 213:663 214:9 215:19
216:2854 217:471 218:27
End of report
1
0
This is an auto-generated mail on Fri Jul 5 23:00:01 PDT 2002
It is not checked before it leaves my workstation. However, hopefully
you will find this report interesting and will take the time to look
through this to see if you can improve the amount of aggregation you
perform.
Check http://www.employees.org/~tbates/cidr-report.html for a daily
update of this report.
NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for
the regional version of this report.
NEW: Check http://www.employees.org/~tbates/autnums.html for a complete
list of autonomous system number to name mappings as used by the CIDR-Report.
The report is split into sections:
0) General Status
List the route table history for the last week, list any possibly
bogus routes seen and give some status on ASes.
1) Gains by aggregating at the origin AS level
This lists the "Top 30" players who if they decided to aggregate
their announced classful prefixes at the origin AS level could
make a significant difference in the reduction of the current
size of the Internet routing table. This calculation does not
take into account the inclusion of holes when forming an aggregate
so it is possible even larger reduction should be possible.
2) Weekly Delta
A summary of the last weeks changes in terms of withdrawn and
added routes. Please note that this is only a snapshot but does
give some indication of ASes participating in CIDR. Clearly,
it is generally a good thing to see a large amount of withdrawls.
3) Interesting aggregates
Interesting here means not an aggregate made as a set of
classful routes.
Thanks to GX Networks for giving me access to their routing tables once a
day.
Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>.
------------------------------------------------------------------------------
CIDR REPORT for 05Jul02
0) General Status
Table History
-------------
Date Prefixes
280602 111076
290602 111083
300602 111065
010702 111089
020702 111046
030702 110779
040702 110898
050702 110820
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
AS Summary
----------
Number of ASes in routing system: 13188
Number of ASes announcing only one prefix: 8046 (4527 cidr, 3519 classful)
Largest number of cidr routes: 613 announced by AS701
Largest number of classful routes: 1234 announced by AS701
1) Gains by aggregating at the origin AS level
--- 05Jul02 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS1221 1098 847 251 22.9% Telstra Pty Ltd
AS701 1234 987 247 20.0% UUNET Technologies, Inc.
AS17557 305 108 197 64.6% Pakistan Telecom
AS6595 210 58 152 72.4% DoD Education Activity Network As
AS852 482 352 130 27.0% Telus Advanced Communications
AS7018 804 675 129 16.0% AT&T
AS16473 194 76 118 60.8% Bell South
AS4151 237 142 95 40.1% USDA
AS19632 99 5 94 94.9% Metropolis Intercom S.A.
AS1239 520 426 94 18.1% Sprint
AS7303 157 69 88 56.1% Telecom Argentina Stet-France Tel
AS16814 105 20 85 81.0% NSS, S.A.
AS7046 313 230 83 26.5% UUNET Technologies, Inc.
AS226 171 88 83 48.5% Los Nettos
AS2048 180 103 77 42.8% State of Louisiana
AS4755 212 136 76 35.8% Videsh Sanchar Nigam Ltd. Autonom
AS577 262 190 72 27.5% Bell Advanced Communications Inc.
AS4323 407 338 69 17.0% Time Warner Communications, Inc.
AS724 229 161 68 29.7% DLA Systems Automation Center
AS3464 163 102 61 37.4% Alabama SuperComputer Network
AS19834 64 4 60 93.8% NetForce, Inc.
AS10620 83 23 60 72.3% TVCABLE BOGOTA
AS9498 84 27 57 67.9% BHARTI BT INTERNET LTD.
AS16758 63 6 57 90.5% IKON Office Solutions
AS1 441 384 57 12.9% GENUITY
AS9051 82 26 56 68.3% INCONET Autonomous System
AS3908 295 239 56 19.0% Supernet, Inc.
AS209 309 255 54 17.5% Qwest
AS6535 67 17 50 74.6% Chilesat Servicios Empresariales
AS702 519 473 46 8.9% UUNET Technologies, Inc.
Total 54644 42182 12462 22.8%
For the rest of the previous weeks gain information please see
http://www.employees.org:80/~tbates/cidr-report.html
2) Weekly Delta
Please see
http://www.employees.org:80/~tbates/cidr-report.html
for this part of the report
3) Interesting aggregates
Please see
http://www.employees.org:80/~tbates/cidr-report.html
for this part of the report
1
0
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats(a)lists.apnic.net
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 20:00 +10GMT Fri 05 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113313
Prefixes after maximum aggregation: 73541
Unique aggregates announced to Internet: 53461
Total ASes present in the Internet Routing Table: 13292
Origin-only ASes present in the Internet Routing Table: 11513
Origin ASes announcing only one prefix: 5092
Transit ASes present in the Internet Routing Table: 1779
Transit-only ASes present in the Internet Routing Table: 48
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1201977052
Equivalent to 71 /8s, 164 /16s and 182 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 45809
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18535
Total APNIC prefixes after maximum aggregation: 11071
Prefixes being announced from the APNIC address blocks: 17032
Unique aggregates announced from the APNIC address blocks: 10457
APNIC Region origin ASes present in the Internet Routing Table: 1553
APNIC Region origin ASes announcing only one prefix: 510
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 88121440
Equivalent to 5 /8s, 64 /16s and 160 /24s
Percentage of available APNIC address space announced: 58.0
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75527
Total ARIN prefixes after maximum aggregation: 47967
Prefixes being announced from the ARIN address blocks: 53813
Unique aggregates announced from the ARIN address blocks: 17014
ARIN Region origin ASes present in the Internet Routing Table: 7823
ARIN Region origin ASes announcing only one prefix: 2505
ARIN Region transit ASes present in the Internet Routing Table: 763
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 199664468
Equivalent to 11 /8s, 230 /16s and 163 /24s
Percentage of available ARIN address space announced: 74.4
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 23551
25600 - 26623
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19250
Total RIPE prefixes after maximum aggregation: 14503
Prefixes being announced from the RIPE address blocks: 15987
Unique aggregates announced from the RIPE address blocks: 10429
RIPE Region origin ASes present in the Internet Routing Table: 3868
RIPE Region origin ASes announcing only one prefix: 2077
RIPE Region transit ASes present in the Internet Routing Table: 718
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 111972128
Equivalent to 6 /8s, 172 /16s and 143 /24s
Percentage of available RIPE address space announced: 74.2
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1269 1223 906 Telstra Pty Ltd
4538 448 1258 18 China Education and Research
703 401 358 319 UUNET Technologies, Inc.
2764 367 358 337 connect.com.au pty ltd
2907 366 1864 341 SINET Japan
7474 313 292 212 Optus Communications Pty Ltd
17557 308 21 110 Pakistan Telecom
4755 303 120 82 Videsh Sanchar Nigam Ltd. Aut
4134 291 2114 107 Data Communications Bureau
9443 254 45 66 Primus Telecommunications
4766 217 1506 155 Korea Internet Exchange for "
4814 210 79 14 China Telecom (Group) - Beiji
9583 174 32 5 Satyam Infoway Ltd.,
17676 154 2386 25 XTAGE CORPORATION
7539 153 202 148 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 130 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4713 115 1009 106 NTT Communications Corporatio
4621 111 11 61 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 950 2461 783 UUNET Technologies, Inc.
3301 396 924 346 TeliaNet Sweden
3352 280 535 29 Ibernet, Internet Access Netw
3215 266 628 166 France Telecom / &Equant
3320 241 1947 193 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5515 216 783 172 Sonera Finland Autonomous Sys
1257 205 430 202 SWIPnet Swedish IP Network
5400 205 83 94 Concert European Core Network
719 189 306 128 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 140 23 137 Romania Data Systems S.A.
3303 135 546 134 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 118 7 31 MobiFon S.A.
3246 112 301 107 Song Networks / Clinet
3269 111 690 68 TELECOM ITALIA
5511 108 192 87 France Telecom
3233 104 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1854 9256 1381 UUNET Technologies, Inc.
7018 1284 7406 933 AT&T
3908 920 1643 500 Supernet, Inc.
1239 824 3328 647 Sprint
1 693 8075 446 GENUITY
852 681 1173 447 Telus Advanced Communications
4323 631 438 258 Time Warner Communications, I
7843 616 358 234 Adelphia Corp.
209 611 2011 351 Qwest
7132 579 659 133 Southwestern Bell Internet Se
7046 565 889 362 UUNET Technologies, Inc.
690 513 75 315 Merit Network
7066 477 202 252 Virginia Polytechnic Institut
7029 475 167 58 Alltel Information Services,
2149 444 180 337 Performance Systems, Inc.
3549 441 839 317 Global Crossing
2914 407 2100 384 Verio, Inc.
15290 381 297 196 AT&T Canada IES
6197 347 248 169 BellSouth Network Solutions,
6347 339 370 77 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 579 446 Southwestern Bell Internet Se
4538 448 430 China Education and Research
3908 920 420 Supernet, Inc.
7029 475 417 Alltel Information Services,
7843 616 382 Adelphia Corp.
4323 631 373 Time Warner Communications, I
1221 1269 363 Telstra Pty Ltd
7018 1284 351 AT&T
11371 292 286 Rhythms NetConnections
4151 289 273 USDA
6347 339 262 SAVVIS Communications Corpora
209 611 260 Qwest
3352 280 251 Ibernet, Internet Access Netw
4355 301 249 EarthLink, Inc.
1 693 247 GENUITY
852 681 234 Telus Advanced Communications
7066 477 225 Virginia Polytechnic Institut
18566 228 224 Covad Communications
4755 303 221 Videsh Sanchar Nigam Ltd. Aut
6198 324 219 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65000 PRIVATE 145.8.176.0/24 12469 Infonet Netherlands
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.5.154.0/24 16588 Spider Web Hosting Solutions
192.26.98.0/24 1239 Sprint
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:21 /9:6 /10:7 /11:12 /12:36
/13:87 /14:233 /15:418 /16:7226 /17:1449 /18:2647
/19:7662 /20:7330 /21:5138 /22:7922 /23:9614 /24:62853
/25:198 /26:162 /27:74 /28:72 /29:51 /30:74
/31:0 /32:21
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 588 950 UUNET Technologies, Inc.
701 509 1854 UUNET Technologies, Inc.
3908 509 920 Supernet, Inc.
690 454 513 Merit Network
7843 424 616 Adelphia Corp.
7066 382 477 Virginia Polytechnic Institut
7029 373 475 Alltel Information Services,
7018 342 1284 AT&T
209 274 611 Qwest
6197 249 347 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
6198 237 324 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
18566 224 228 Covad Communications
7046 218 565 UUNET Technologies, Inc.
1239 209 824 Sprint
3352 204 280 Ibernet, Internet Access Netw
1580 203 233 HQ, 5th Signal Command
3215 199 266 France Telecom / &Equant
1 193 693 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:501 13:10 15:2 17:6
20:2 24:794 25:1 32:41 38:9 40:6
44:1 57:13 61:269 62:209 63:1885 64:1255
65:1419 66:994 67:89 68:45 80:253 81:32
128:62 129:135 130:22 131:48 132:11 133:2
134:123 135:8 136:243 137:92 138:149 139:69
140:175 141:122 142:81 143:40 144:153 145:14
146:182 147:136 148:222 149:89 150:40 151:67
152:261 153:34 154:14 155:106 156:77 157:128
158:70 159:179 160:18 161:68 162:213 163:99
164:265 165:133 166:220 167:170 168:126 169:61
170:250 171:3 192:5444 193:2360 194:2091 195:921
196:395 198:3625 199:3185 200:2581 202:3261 203:4657
204:3255 205:2183 206:2670 207:2547 208:2650 209:2649
210:592 211:226 212:913 213:655 214:9 215:19
216:2852 217:465 218:28
End of report
1
0
This is an auto-generated mail on Fri Jun 28 23:00:01 PDT 2002
It is not checked before it leaves my workstation. However, hopefully
you will find this report interesting and will take the time to look
through this to see if you can improve the amount of aggregation you
perform.
Check http://www.employees.org/~tbates/cidr-report.html for a daily
update of this report.
NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for
the regional version of this report.
NEW: Check http://www.employees.org/~tbates/autnums.html for a complete
list of autonomous system number to name mappings as used by the CIDR-Report.
The report is split into sections:
0) General Status
List the route table history for the last week, list any possibly
bogus routes seen and give some status on ASes.
1) Gains by aggregating at the origin AS level
This lists the "Top 30" players who if they decided to aggregate
their announced classful prefixes at the origin AS level could
make a significant difference in the reduction of the current
size of the Internet routing table. This calculation does not
take into account the inclusion of holes when forming an aggregate
so it is possible even larger reduction should be possible.
2) Weekly Delta
A summary of the last weeks changes in terms of withdrawn and
added routes. Please note that this is only a snapshot but does
give some indication of ASes participating in CIDR. Clearly,
it is generally a good thing to see a large amount of withdrawls.
3) Interesting aggregates
Interesting here means not an aggregate made as a set of
classful routes.
Thanks to GX Networks for giving me access to their routing tables once a
day.
Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>.
------------------------------------------------------------------------------
CIDR REPORT for 28Jun02
0) General Status
Table History
-------------
Date Prefixes
210602 111582
220602 111717
230602 111670
240602 111786
250602 111981
260602 111996
270602 111954
280602 111076
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
AS Summary
----------
Number of ASes in routing system: 13191
Number of ASes announcing only one prefix: 8060 (4540 cidr, 3520 classful)
Largest number of cidr routes: 623 announced by AS701
Largest number of classful routes: 1237 announced by AS701
1) Gains by aggregating at the origin AS level
--- 28Jun02 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS1221 1097 846 251 22.9% Telstra Pty Ltd
AS701 1237 989 248 20.0% UUNET Technologies, Inc.
AS17557 298 112 186 62.4% Pakistan Telecom
AS6595 204 58 146 71.6% DoD Education Activity Network As
AS7018 808 677 131 16.2% AT&T
AS852 479 352 127 26.5% Telus Advanced Communications
AS16473 193 75 118 61.1% Bell South
AS4151 237 142 95 40.1% USDA
AS19632 98 4 94 95.9% Metropolis Intercom S.A.
AS1239 523 430 93 17.8% Sprint
AS12302 123 30 93 75.6% MobiFon S.A.
AS7303 159 68 91 57.2% Telecom Argentina Stet-France Tel
AS7046 325 236 89 27.4% UUNET Technologies, Inc.
AS16814 105 20 85 81.0% NSS, S.A.
AS226 176 92 84 47.7% Los Nettos
AS2048 182 104 78 42.9% State of Louisiana
AS4755 205 132 73 35.6% Videsh Sanchar Nigam Ltd. Autonom
AS577 262 190 72 27.5% Bell Advanced Communications Inc.
AS4323 408 339 69 16.9% Time Warner Communications, Inc.
AS3464 164 103 61 37.2% Alabama SuperComputer Network
AS19834 64 4 60 93.8% NetForce, Inc.
AS10620 83 23 60 72.3% TVCABLE BOGOTA
AS724 216 157 59 27.3% DLA Systems Automation Center
AS6123 70 13 57 81.4% Web Professionals
AS3908 310 253 57 18.4% Supernet, Inc.
AS209 315 258 57 18.1% Qwest
AS16758 63 6 57 90.5% IKON Office Solutions
AS1 444 388 56 12.6% GENUITY
AS9051 81 26 55 67.9% INCONET Autonomous System
AS9498 80 27 53 66.2% BHARTI BT INTERNET LTD.
Total 54876 42309 12567 22.9%
For the rest of the previous weeks gain information please see
http://www.employees.org:80/~tbates/cidr-report.html
2) Weekly Delta
Please see
http://www.employees.org:80/~tbates/cidr-report.html
for this part of the report
3) Interesting aggregates
Please see
http://www.employees.org:80/~tbates/cidr-report.html
for this part of the report
1
0
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats(a)lists.apnic.net
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 20:00 +10GMT Fri 28 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113461
Prefixes after maximum aggregation: 73552
Unique aggregates announced to Internet: 54191
Total ASes present in the Internet Routing Table: 13300
Origin-only ASes present in the Internet Routing Table: 11517
Origin ASes announcing only one prefix: 5099
Transit ASes present in the Internet Routing Table: 1783
Transit-only ASes present in the Internet Routing Table: 49
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1195266012
Equivalent to 71 /8s, 62 /16s and 79 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45931
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18539
Total APNIC prefixes after maximum aggregation: 11056
Prefixes being announced from the APNIC address blocks: 17010
Unique aggregates announced from the APNIC address blocks: 10442
APNIC Region origin ASes present in the Internet Routing Table: 1544
APNIC Region origin ASes announcing only one prefix: 501
APNIC Region transit ASes present in the Internet Routing Table: 275
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87593312
Equivalent to 5 /8s, 56 /16s and 145 /24s
Percentage of available APNIC address space announced: 64.8
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75682
Total ARIN prefixes after maximum aggregation: 47908
Prefixes being announced from the ARIN address blocks: 53850
Unique aggregates announced from the ARIN address blocks: 17635
ARIN Region origin ASes present in the Internet Routing Table: 7832
ARIN Region origin ASes announcing only one prefix: 2510
ARIN Region transit ASes present in the Internet Routing Table: 771
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192501588
Equivalent to 11 /8s, 121 /16s and 87 /24s
Percentage of available ARIN address space announced: 71.7
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 23551
25600 - 26623
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19238
Total RIPE prefixes after maximum aggregation: 14588
Prefixes being announced from the RIPE address blocks: 15939
Unique aggregates announced from the RIPE address blocks: 10568
RIPE Region origin ASes present in the Internet Routing Table: 3876
RIPE Region origin ASes announcing only one prefix: 2088
RIPE Region transit ASes present in the Internet Routing Table: 722
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 111988256
Equivalent to 6 /8s, 172 /16s and 206 /24s
Percentage of available RIPE address space announced: 74.2
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1265 1223 905 Telstra Pty Ltd
4538 424 1194 16 China Education and Research
703 400 357 318 UUNET Technologies, Inc.
2764 369 359 338 connect.com.au pty ltd
2907 366 1864 340 SINET Japan
7474 313 292 208 Optus Communications Pty Ltd
17557 302 20 114 Pakistan Telecom
4755 296 117 82 Videsh Sanchar Nigam Ltd. Aut
4134 289 2114 105 Data Communications Bureau
9443 252 45 66 Primus Telecommunications
4713 226 1009 106 NTT Communications Corporatio
4766 216 1504 154 Korea Internet Exchange for "
4814 201 79 14 China Telecom (Group) - Beiji
9583 177 32 5 Satyam Infoway Ltd.,
7539 155 219 149 TANet2, sponsored by NSC, TAI
17676 152 2354 23 XTAGE CORPORATION
9768 145 386 74 Korea Telecom
7657 139 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4621 112 11 61 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1023 2615 846 UUNET Technologies, Inc.
3301 402 925 351 TeliaNet Sweden
3352 277 535 26 Ibernet, Internet Access Netw
3215 266 598 165 France Telecom / &Equant
3320 241 1947 193 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5515 206 783 172 Sonera Finland Autonomous Sys
5400 205 83 94 Concert European Core Network
1257 204 430 201 SWIPnet Swedish IP Network
719 192 306 130 LANLINK autonomous system
786 177 1857 176 The JANET IP Service
8708 141 23 138 Romania Data Systems S.A.
3303 136 546 135 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
3269 111 690 68 TELECOM ITALIA
3246 110 301 105 Song Networks / Clinet
8297 105 52 58 Teleglobe Autonomous System i
2874 103 85 39 Global One Services AB
3233 102 6 56 RNC - Romanian Natioanal R&D
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1862 9258 1387 UUNET Technologies, Inc.
7018 1296 7469 933 AT&T
3908 916 1642 496 Supernet, Inc.
1239 820 3360 645 Sprint
1 699 8131 450 GENUITY
852 678 1173 448 Telus Advanced Communications
4323 632 438 259 Time Warner Communications, I
209 613 2003 350 Qwest
7843 608 354 242 Adelphia Corp.
7046 590 876 377 UUNET Technologies, Inc.
7132 579 659 133 Southwestern Bell Internet Se
690 511 75 317 Merit Network
7029 478 167 58 Alltel Information Services,
7066 468 202 250 Virginia Polytechnic Institut
3549 439 836 314 Global Crossing
2149 422 195 320 Performance Systems, Inc.
2914 389 2100 382 Verio, Inc.
15290 381 297 196 AT&T Canada IES
6197 347 248 169 BellSouth Network Solutions,
6347 342 370 80 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 579 446 Southwestern Bell Internet Se
3908 916 420 Supernet, Inc.
7029 478 420 Alltel Information Services,
4538 424 408 China Education and Research
4323 632 373 Time Warner Communications, I
7843 608 366 Adelphia Corp.
7018 1296 363 AT&T
1221 1265 360 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 289 273 USDA
209 613 263 Qwest
6347 342 262 SAVVIS Communications Corpora
4355 306 253 EarthLink, Inc.
3352 277 251 Ibernet, Internet Access Netw
1 699 249 GENUITY
852 678 230 Telus Advanced Communications
4454 248 225 OIR Telecommunications, State
18566 228 224 Covad Communications
7066 468 218 Virginia Polytechnic Institut
6198 322 217 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65111 PRIVATE 64.200.152.0/23 7911 Williams Communicati
65111 PRIVATE 64.200.154.0/23 7911 Williams Communicati
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.5.154.0/24 16588 Spider Web Hosting Solutions
192.26.98.0/24 1239 Sprint
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:6 /10:7 /11:12 /12:36
/13:87 /14:232 /15:417 /16:7241 /17:1449 /18:2640
/19:7692 /20:7306 /21:5130 /22:7870 /23:9605 /24:63043
/25:188 /26:168 /27:78 /28:83 /29:44 /30:83
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 631 1023 UUNET Technologies, Inc.
701 514 1862 UUNET Technologies, Inc.
3908 504 916 Supernet, Inc.
690 452 511 Merit Network
7843 418 608 Adelphia Corp.
7029 376 478 Alltel Information Services,
7066 373 468 Virginia Polytechnic Institut
7018 353 1296 AT&T
209 270 613 Qwest
6197 249 347 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 238 402 TeliaNet Sweden
6198 235 322 BellSouth Network Solutions,
7046 232 590 UUNET Technologies, Inc.
18566 224 228 Covad Communications
6517 213 235 Yipes Communications, Inc.
1239 203 820 Sprint
1580 203 233 HQ, 5th Signal Command
3352 201 277 Ibernet, Internet Access Netw
3215 200 266 France Telecom / &Equant
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:502 13:10 15:2 17:6
20:2 24:799 25:1 32:41 38:9 40:6
44:1 57:13 61:269 62:217 63:1905 64:1244
65:1405 66:998 67:89 68:47 80:259 81:30
128:60 129:133 130:22 131:47 132:11 133:3
134:121 135:8 136:244 137:92 138:145 139:69
140:175 141:121 142:83 143:40 144:153 145:14
146:180 147:138 148:223 149:89 150:40 151:67
152:261 153:33 154:14 155:106 156:77 157:127
158:69 159:128 160:18 161:69 162:214 163:100
164:261 165:134 166:223 167:172 168:131 169:60
170:358 171:3 192:5482 193:2360 194:2072 195:938
196:397 198:3649 199:3193 200:2555 202:3235 203:4654
204:3249 205:2160 206:2690 207:2602 208:2674 209:2647
210:585 211:226 212:897 213:646 214:9 215:19
216:2826 217:458 218:44 219:81
End of report
1
0
This is an auto-generated mail on Fri Jun 21 23:00:00 PDT 2002
It is not checked before it leaves my workstation. However, hopefully
you will find this report interesting and will take the time to look
through this to see if you can improve the amount of aggregation you
perform.
Check http://www.employees.org/~tbates/cidr-report.html for a daily
update of this report.
NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for
the regional version of this report.
NEW: Check http://www.employees.org/~tbates/autnums.html for a complete
list of autonomous system number to name mappings as used by the CIDR-Report.
The report is split into sections:
0) General Status
List the route table history for the last week, list any possibly
bogus routes seen and give some status on ASes.
1) Gains by aggregating at the origin AS level
This lists the "Top 30" players who if they decided to aggregate
their announced classful prefixes at the origin AS level could
make a significant difference in the reduction of the current
size of the Internet routing table. This calculation does not
take into account the inclusion of holes when forming an aggregate
so it is possible even larger reduction should be possible.
2) Weekly Delta
A summary of the last weeks changes in terms of withdrawn and
added routes. Please note that this is only a snapshot but does
give some indication of ASes participating in CIDR. Clearly,
it is generally a good thing to see a large amount of withdrawls.
3) Interesting aggregates
Interesting here means not an aggregate made as a set of
classful routes.
Thanks to GX Networks for giving me access to their routing tables once a
day.
Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>.
------------------------------------------------------------------------------
CIDR REPORT for 21Jun02
0) General Status
Table History
-------------
Date Prefixes
140602 111440
150602 111459
160602 111437
170602 111518
180602 111528
190602 111542
200602 111562
210602 111582
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
AS Summary
----------
Number of ASes in routing system: 13153
Number of ASes announcing only one prefix: 8033 (4515 cidr, 3518 classful)
Largest number of cidr routes: 658 announced by AS701
Largest number of classful routes: 1352 announced by AS701
1) Gains by aggregating at the origin AS level
--- 21Jun02 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 1352 1079 273 20.2% UUNET Technologies, Inc.
AS1221 1090 846 244 22.4% Telstra Pty Ltd
AS17557 295 111 184 62.4% Pakistan Telecom
AS6595 189 57 132 69.8% DoD Education Activity Network As
AS7018 808 678 130 16.1% AT&T
AS852 480 354 126 26.2% Telus Advanced Communications
AS16473 194 76 118 60.8% Bell South
AS705 301 201 100 33.2% UUNET Technologies, Inc.
AS4151 235 141 94 40.0% USDA
AS19632 98 4 94 95.9% Metropolis Intercom S.A.
AS12302 122 29 93 76.2% MobiFon S.A.
AS1239 517 427 90 17.4% Sprint
AS7046 322 233 89 27.6% UUNET Technologies, Inc.
AS7303 152 65 87 57.2% Telecom Argentina Stet-France Tel
AS16814 105 20 85 81.0% NSS, S.A.
AS226 176 92 84 47.7% Los Nettos
AS2048 179 103 76 42.5% State of Louisiana
AS577 262 190 72 27.5% Bell Advanced Communications Inc.
AS4755 196 124 72 36.7% Videsh Sanchar Nigam Ltd. Autonom
AS4323 408 339 69 16.9% Time Warner Communications, Inc.
AS724 226 158 68 30.1% DLA Systems Automation Center
AS3464 165 104 61 37.0% Alabama SuperComputer Network
AS19834 64 4 60 93.8% NetForce, Inc.
AS10620 83 23 60 72.3% TVCABLE BOGOTA
AS3908 308 251 57 18.5% Supernet, Inc.
AS209 319 262 57 17.9% Qwest
AS16758 63 6 57 90.5% IKON Office Solutions
AS1 445 389 56 12.6% GENUITY
AS9051 81 26 55 67.9% INCONET Autonomous System
AS6535 69 16 53 76.8% Chilesat Servicios Empresariales
Total 55073 42468 12605 22.9%
For the rest of the previous weeks gain information please see
http://www.employees.org:80/~tbates/cidr-report.html
2) Weekly Delta
Please see
http://www.employees.org:80/~tbates/cidr-report.html
for this part of the report
3) Interesting aggregates
Please see
http://www.employees.org:80/~tbates/cidr-report.html
for this part of the report
1
0
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats(a)lists.apnic.net
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 20:00 +10GMT Fri 21 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116768
Prefixes after maximum aggregation: 75458
Unique aggregates announced to Internet: 54444
Total ASes present in the Internet Routing Table: 13262
Origin-only ASes present in the Internet Routing Table: 11497
Origin ASes announcing only one prefix: 5075
Transit ASes present in the Internet Routing Table: 1765
Transit-only ASes present in the Internet Routing Table: 50
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1191164380
Equivalent to 70 /8s, 255 /16s and 185 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 48984
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18439
Total APNIC prefixes after maximum aggregation: 11051
Prefixes being announced from the APNIC address blocks: 16933
Unique aggregates announced from the APNIC address blocks: 10433
APNIC Region origin ASes present in the Internet Routing Table: 1546
APNIC Region origin ASes announcing only one prefix: 505
APNIC Region transit ASes present in the Internet Routing Table: 271
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87375200
Equivalent to 5 /8s, 53 /16s and 61 /24s
Percentage of available APNIC address space announced: 64.6
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 79103
Total ARIN prefixes after maximum aggregation: 49855
Prefixes being announced from the ARIN address blocks: 54598
Unique aggregates announced from the ARIN address blocks: 17874
ARIN Region origin ASes present in the Internet Routing Table: 7814
ARIN Region origin ASes announcing only one prefix: 2508
ARIN Region transit ASes present in the Internet Routing Table: 764
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 188803412
Equivalent to 11 /8s, 64 /16s and 233 /24s
Percentage of available ARIN address space announced: 70.3
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 23551
25600 - 26623
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19225
Total RIPE prefixes after maximum aggregation: 14552
Prefixes being announced from the RIPE address blocks: 15925
Unique aggregates announced from the RIPE address blocks: 10567
RIPE Region origin ASes present in the Internet Routing Table: 3853
RIPE Region origin ASes announcing only one prefix: 2062
RIPE Region transit ASes present in the Internet Routing Table: 712
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 111785248
Equivalent to 6 /8s, 169 /16s and 181 /24s
Percentage of available RIPE address space announced: 74.0
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1260 1222 907 Telstra Pty Ltd
4538 419 1194 16 China Education and Research
703 417 357 333 UUNET Technologies, Inc.
2907 384 1875 357 SINET Japan
2764 367 358 336 connect.com.au pty ltd
7474 311 292 208 Optus Communications Pty Ltd
17557 300 20 114 Pakistan Telecom
4755 295 115 80 Videsh Sanchar Nigam Ltd. Aut
4134 290 2132 102 Data Communications Bureau
9443 251 45 67 Primus Telecommunications
4766 216 1504 154 Korea Internet Exchange for "
4814 196 79 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 175 32 5 Satyam Infoway Ltd.,
17676 150 2322 23 XTAGE CORPORATION
9768 146 386 75 Korea Telecom
7657 139 22 87 The Internet Group Limited
9800 116 191 24 CHINA UNICOM
4780 112 186 39 Digital United Inc.
4739 111 56 102 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1022 2617 846 UUNET Technologies, Inc.
3301 401 924 350 TeliaNet Sweden
3352 278 537 27 Ibernet, Internet Access Netw
3215 263 598 162 France Telecom / &Equant
680 233 2149 230 DFN-IP service G-WiN
3320 233 1962 186 Deutsche Telekom AG
5515 206 783 172 Sonera Finland Autonomous Sys
1257 204 430 201 SWIPnet Swedish IP Network
5400 203 83 94 Concert European Core Network
719 191 306 129 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 141 23 138 Romania Data Systems S.A.
3303 133 546 132 Swisscom Ltd
2856 125 786 115 BTnet UK Regional network
12302 124 10 31 MobiFon S.A.
3269 113 692 70 TELECOM ITALIA
8297 111 55 64 Teleglobe Autonomous System i
3246 108 300 103 Song Networks / Clinet
3233 102 6 56 RNC - Romanian Natioanal R&D
2874 98 85 38 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2149 2872 349 2325 Performance Systems, Inc.
701 2016 9242 1405 UUNET Technologies, Inc.
7018 1286 7453 929 AT&T
3908 908 1642 495 Supernet, Inc.
1239 815 3363 651 Sprint
705 802 188 276 UUNET Technologies, Inc.
1 701 8147 451 GENUITY
852 674 1173 449 Telus Advanced Communications
4323 631 438 259 Time Warner Communications, I
7843 613 375 60 Adelphia Corp.
209 611 1959 342 Qwest
7046 597 860 384 UUNET Technologies, Inc.
690 588 81 376 Merit Network
7132 577 659 134 Southwestern Bell Internet Se
174 554 4608 36 PSINet Inc.
7066 476 202 249 Virginia Polytechnic Institut
3549 453 857 317 Global Crossing
2914 393 2100 385 Verio, Inc.
15290 385 299 198 AT&T Canada IES
6197 347 247 170 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 2016 611 UUNET Technologies, Inc.
7843 613 553 Adelphia Corp.
705 802 526 UUNET Technologies, Inc.
174 554 518 PSINet Inc.
7132 577 443 Southwestern Bell Internet Se
3908 908 413 Supernet, Inc.
4538 419 403 China Education and Research
4323 631 372 Time Warner Communications, I
7018 1286 357 AT&T
1221 1260 353 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 611 269 Qwest
6347 338 260 SAVVIS Communications Corpora
3352 278 251 Ibernet, Internet Access Netw
1 701 250 GENUITY
4355 301 248 EarthLink, Inc.
7029 262 248 Alltel Information Services,
7066 476 227 Virginia Polytechnic Institut
4454 249 226 OIR Telecommunications, State
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
13136 UNALLOCATED 80.85.128.0/20 16243 Virtu Secure Webserv
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.26.98.0/24 1239 Sprint
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:6 /10:7 /11:12 /12:36
/13:90 /14:236 /15:421 /16:7261 /17:1455 /18:2632
/19:7670 /20:7270 /21:5094 /22:7845 /23:9553 /24:66470
/25:195 /26:171 /27:82 /28:77 /29:48 /30:81
/31:1 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2149 2334 2872 Performance Systems, Inc.
702 629 1022 UUNET Technologies, Inc.
705 598 802 UUNET Technologies, Inc.
701 574 2016 UUNET Technologies, Inc.
3908 496 908 Supernet, Inc.
690 466 588 Merit Network
174 461 554 PSINet Inc.
7843 397 613 Adelphia Corp.
7066 381 476 Virginia Polytechnic Institut
7018 345 1286 AT&T
209 276 611 Qwest
6197 249 347 BellSouth Network Solutions,
7029 248 262 Alltel Information Services,
11371 245 292 Rhythms NetConnections
7046 241 597 UUNET Technologies, Inc.
3301 237 401 TeliaNet Sweden
6198 233 320 BellSouth Network Solutions,
18566 221 225 Covad Communications
6517 216 238 Yipes Communications, Inc.
1239 202 815 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:510 13:10 15:2 17:6
20:2 24:807 25:1 32:41 38:2638 40:6
44:1 57:13 61:265 62:205 63:1925 64:1236
65:1658 66:978 67:86 68:179 80:257 81:30
128:60 129:140 130:24 131:49 132:11 133:3
134:120 135:8 136:245 137:94 138:149 139:59
140:141 141:121 142:83 143:37 144:152 145:14
146:174 147:138 148:216 149:91 150:40 151:127
152:265 153:33 154:19 155:101 156:77 157:127
158:69 159:127 160:18 161:69 162:154 163:103
164:276 165:133 166:229 167:173 168:131 169:59
170:355 171:3 192:5483 193:2369 194:2085 195:957
196:395 198:3680 199:3235 200:2514 202:3236 203:4661
204:3423 205:2183 206:2738 207:2613 208:2669 209:2672
210:582 211:221 212:899 213:632 214:9 215:19
216:2976 217:462 218:39 219:41
End of report
1
0
This is an auto-generated mail on Fri Jun 14 23:00:00 PDT 2002
It is not checked before it leaves my workstation. However, hopefully
you will find this report interesting and will take the time to look
through this to see if you can improve the amount of aggregation you
perform.
Check http://www.employees.org/~tbates/cidr-report.html for a daily
update of this report.
NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for
the regional version of this report.
NEW: Check http://www.employees.org/~tbates/autnums.html for a complete
list of autonomous system number to name mappings as used by the CIDR-Report.
The report is split into sections:
0) General Status
List the route table history for the last week, list any possibly
bogus routes seen and give some status on ASes.
1) Gains by aggregating at the origin AS level
This lists the "Top 30" players who if they decided to aggregate
their announced classful prefixes at the origin AS level could
make a significant difference in the reduction of the current
size of the Internet routing table. This calculation does not
take into account the inclusion of holes when forming an aggregate
so it is possible even larger reduction should be possible.
2) Weekly Delta
A summary of the last weeks changes in terms of withdrawn and
added routes. Please note that this is only a snapshot but does
give some indication of ASes participating in CIDR. Clearly,
it is generally a good thing to see a large amount of withdrawls.
3) Interesting aggregates
Interesting here means not an aggregate made as a set of
classful routes.
Thanks to GX Networks for giving me access to their routing tables once a
day.
Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>.
------------------------------------------------------------------------------
CIDR REPORT for 14Jun02
0) General Status
Table History
-------------
Date Prefixes
070602 111313
080602 111271
090602 111270
100602 111336
110602 111462
120602 111353
130602 111438
140602 111440
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
AS Summary
----------
Number of ASes in routing system: 13109
Number of ASes announcing only one prefix: 7989 (4485 cidr, 3504 classful)
Largest number of cidr routes: 646 announced by AS701
Largest number of classful routes: 1351 announced by AS701
1) Gains by aggregating at the origin AS level
--- 14Jun02 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 1351 1084 267 19.8% UUNET Technologies, Inc.
AS1221 1090 845 245 22.5% Telstra Pty Ltd
AS17557 299 113 186 62.2% Pakistan Telecom
AS852 569 415 154 27.1% Telus Advanced Communications
AS7018 815 684 131 16.1% AT&T
AS6595 181 58 123 68.0% DoD Education Activity Network As
AS16473 194 76 118 60.8% Bell South
AS705 305 205 100 32.8% UUNET Technologies, Inc.
AS19632 98 4 94 95.9% Metropolis Intercom S.A.
AS4151 233 140 93 39.9% USDA
AS12302 120 27 93 77.5% MobiFon S.A.
AS7303 151 65 86 57.0% Telecom Argentina Stet-France Tel
AS16814 104 19 85 81.7% NSS, S.A.
AS226 176 92 84 47.7% Los Nettos
AS1239 501 417 84 16.8% Sprint
AS7046 319 236 83 26.0% UUNET Technologies, Inc.
AS4755 203 130 73 36.0% Videsh Sanchar Nigam Ltd. Autonom
AS2048 180 107 73 40.6% State of Louisiana
AS577 261 189 72 27.6% Bell Advanced Communications Inc.
AS724 230 161 69 30.0% DLA Systems Automation Center
AS4323 409 340 69 16.9% Time Warner Communications, Inc.
AS3464 165 105 60 36.4% Alabama SuperComputer Network
AS19834 64 4 60 93.8% NetForce, Inc.
AS10620 83 23 60 72.3% TVCABLE BOGOTA
AS209 317 260 57 18.0% Qwest
AS16758 63 6 57 90.5% IKON Office Solutions
AS3908 304 248 56 18.4% Supernet, Inc.
AS1 446 390 56 12.6% GENUITY
AS9051 81 26 55 67.9% INCONET Autonomous System
AS6535 69 16 53 76.8% Chilesat Servicios Empresariales
Total 55229 42614 12615 22.8%
For the rest of the previous weeks gain information please see
http://www.employees.org:80/~tbates/cidr-report.html
2) Weekly Delta
Please see
http://www.employees.org:80/~tbates/cidr-report.html
for this part of the report
3) Interesting aggregates
Please see
http://www.employees.org:80/~tbates/cidr-report.html
for this part of the report
1
0
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats(a)lists.apnic.net
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 20:00 +10GMT Fri 14 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116633
Prefixes after maximum aggregation: 75593
Unique aggregates announced to Internet: 52672
Total ASes present in the Internet Routing Table: 13222
Origin-only ASes present in the Internet Routing Table: 11458
Origin ASes announcing only one prefix: 5048
Transit ASes present in the Internet Routing Table: 1764
Transit-only ASes present in the Internet Routing Table: 52
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 26
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1196237788
Equivalent to 71 /8s, 77 /16s and 35 /24s
Percentage of available address space announced: 32.3
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 49179
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18425
Total APNIC prefixes after maximum aggregation: 11036
Prefixes being announced from the APNIC address blocks: 16897
Unique aggregates announced from the APNIC address blocks: 9854
APNIC Region origin ASes present in the Internet Routing Table: 1536
APNIC Region origin ASes announcing only one prefix: 504
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 89807456
Equivalent to 5 /8s, 90 /16s and 90 /24s
Percentage of available APNIC address space announced: 66.4
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 79070
Total ARIN prefixes after maximum aggregation: 50068
Prefixes being announced from the ARIN address blocks: 54241
Unique aggregates announced from the ARIN address blocks: 16714
ARIN Region origin ASes present in the Internet Routing Table: 7799
ARIN Region origin ASes announcing only one prefix: 2490
ARIN Region transit ASes present in the Internet Routing Table: 766
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 193366356
Equivalent to 11 /8s, 134 /16s and 137 /24s
Percentage of available ARIN address space announced: 72.0
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 23551
25600 - 26623
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19138
Total RIPE prefixes after maximum aggregation: 14489
Prefixes being announced from the RIPE address blocks: 15831
Unique aggregates announced from the RIPE address blocks: 10548
RIPE Region origin ASes present in the Internet Routing Table: 3835
RIPE Region origin ASes announcing only one prefix: 2054
RIPE Region transit ASes present in the Internet Routing Table: 707
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 110449440
Equivalent to 6 /8s, 149 /16s and 83 /24s
Percentage of available RIPE address space announced: 73.1
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1261 1222 907 Telstra Pty Ltd
4538 461 1130 16 China Education and Research
703 412 350 330 UUNET Technologies, Inc.
2907 378 1827 351 SINET Japan
2764 376 359 343 connect.com.au pty ltd
7474 311 291 207 Optus Communications Pty Ltd
17557 303 20 115 Pakistan Telecom
4134 290 2132 102 Data Communications Bureau
4755 287 115 77 Videsh Sanchar Nigam Ltd. Aut
9443 250 45 65 Primus Telecommunications
4766 225 1516 156 Korea Internet Exchange for "
4814 197 79 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 173 32 5 Satyam Infoway Ltd.,
7539 154 203 149 TANet2, sponsored by NSC, TAI
17676 147 2274 22 XTAGE CORPORATION
9768 146 386 75 Korea Telecom
7657 138 22 86 The Internet Group Limited
9800 115 187 23 CHINA UNICOM
4780 112 186 39 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1023 2619 847 UUNET Technologies, Inc.
3301 393 908 344 TeliaNet Sweden
3352 281 537 27 Ibernet, Internet Access Netw
3215 264 598 163 France Telecom / &Equant
680 233 2149 230 DFN-IP service G-WiN
3320 231 1946 184 Deutsche Telekom AG
5515 206 783 172 Sonera Finland Autonomous Sys
1257 203 430 200 SWIPnet Swedish IP Network
5400 203 83 94 Concert European Core Network
719 191 306 129 LANLINK autonomous system
786 179 1873 178 The JANET IP Service
8708 140 23 137 Romania Data Systems S.A.
2856 125 789 115 BTnet UK Regional network
12302 122 10 29 MobiFon S.A.
3303 121 546 120 Swisscom Ltd
3269 113 692 70 TELECOM ITALIA
8297 112 57 65 Teleglobe Autonomous System i
3246 107 284 101 Song Networks / Clinet
3233 102 6 56 RNC - Romanian Natioanal R&D
2874 98 85 38 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2149 3127 366 2551 Performance Systems, Inc.
701 2005 9005 1410 UUNET Technologies, Inc.
7018 1287 7437 934 AT&T
3908 898 1642 493 Supernet, Inc.
1239 809 3406 645 Sprint
705 801 176 275 UUNET Technologies, Inc.
852 780 1191 447 Telus Advanced Communications
1 700 8148 449 GENUITY
4323 629 436 257 Time Warner Communications, I
209 606 1972 338 Qwest
7046 603 851 399 UUNET Technologies, Inc.
690 586 81 374 Merit Network
7132 574 611 133 Southwestern Bell Internet Se
7843 526 369 76 Adelphia Corp.
3549 484 857 323 Global Crossing
7066 475 202 248 Virginia Polytechnic Institut
2914 395 2108 386 Verio, Inc.
15290 386 299 200 AT&T Canada IES
6197 346 246 170 BellSouth Network Solutions,
6347 337 370 78 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 2005 595 UUNET Technologies, Inc.
705 801 526 UUNET Technologies, Inc.
7843 526 450 Adelphia Corp.
4538 461 445 China Education and Research
7132 574 441 Southwestern Bell Internet Se
3908 898 405 Supernet, Inc.
4323 629 372 Time Warner Communications, I
1221 1261 354 Telstra Pty Ltd
7018 1287 353 AT&T
852 780 333 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
174 299 270 PSINet Inc.
4151 285 269 USDA
209 606 268 Qwest
6347 337 259 SAVVIS Communications Corpora
3352 281 254 Ibernet, Internet Access Netw
1 700 251 GENUITY
7029 263 248 Alltel Information Services,
4355 297 244 EarthLink, Inc.
7066 475 227 Virginia Polytechnic Institut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
6262 UNALLOCATED 150.229.0.0/19 7572 Australian Academic
25975 UNALLOCATED 192.58.243.0/24 4565 Epoch Networks
25975 UNALLOCATED 192.104.242.0/24 4565 Epoch Networks
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
12501 UNALLOCATED 193.13.234.0/24 3301 TeliaNet Sweden
12501 UNALLOCATED 193.180.0.0/24 3301 TeliaNet Sweden
12501 UNALLOCATED 193.180.5.0/24 3301 TeliaNet Sweden
12501 UNALLOCATED 193.180.7.0/24 3301 TeliaNet Sweden
12501 UNALLOCATED 193.180.243.0/24 3301 TeliaNet Sweden
12501 UNALLOCATED 193.180.244.0/23 3301 TeliaNet Sweden
12501 UNALLOCATED 193.180.246.0/24 3301 TeliaNet Sweden
12501 UNALLOCATED 194.165.224.0/19 3301 TeliaNet Sweden
25975 UNALLOCATED 198.177.251.0/24 4565 Epoch Networks
25975 UNALLOCATED 198.177.252.0/23 4565 Epoch Networks
25975 UNALLOCATED 198.177.254.0/24 4565 Epoch Networks
18228 UNALLOCATED 202.6.160.0/20 3758 SingNet
17996 UNALLOCATED 202.162.32.0/20 17885 ISP-Project
17902 UNALLOCATED 203.109.150.0/24 4648 Netgate
25979 UNALLOCATED 205.213.213.0/24 701 UUNET Technologies,
25979 UNALLOCATED 205.213.214.0/24 701 UUNET Technologies,
25979 UNALLOCATED 205.213.215.0/24 701 UUNET Technologies,
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
12501 UNALLOCATED 212.32.128.0/18 3301 TeliaNet Sweden
12501 UNALLOCATED 212.217.128.0/17 3301 TeliaNet Sweden
12501 UNALLOCATED 213.79.128.0/17 3301 TeliaNet Sweden
25967 UNALLOCATED 216.234.80.0/20 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.26.98.0/24 1239 Sprint
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:21 /9:6 /10:7 /11:12 /12:34
/13:89 /14:233 /15:415 /16:7245 /17:1452 /18:2612
/19:7645 /20:7240 /21:5094 /22:7825 /23:9513 /24:66466
/25:199 /26:180 /27:82 /28:86 /29:51 /30:90
/31:1 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2149 2879 3127 Performance Systems, Inc.
702 631 1023 UUNET Technologies, Inc.
705 594 801 UUNET Technologies, Inc.
701 567 2005 UUNET Technologies, Inc.
3908 488 898 Supernet, Inc.
690 465 586 Merit Network
7066 380 475 Virginia Polytechnic Institut
7018 339 1287 AT&T
7843 318 526 Adelphia Corp.
209 275 606 Qwest
174 262 299 PSINet Inc.
7046 250 603 UUNET Technologies, Inc.
6197 249 346 BellSouth Network Solutions,
7029 248 263 Alltel Information Services,
11371 245 292 Rhythms NetConnections
3301 235 393 TeliaNet Sweden
6198 232 319 BellSouth Network Solutions,
18566 219 223 Covad Communications
6517 217 239 Yipes Communications, Inc.
1239 210 809 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:505 13:10 15:2 17:6
20:2 24:780 25:1 32:41 38:3012 40:6
44:1 57:13 61:266 62:200 63:1923 64:1233
65:1637 66:953 67:84 68:170 80:237 81:27
128:60 129:140 130:24 131:48 132:11 133:3
134:119 135:8 136:246 137:93 138:150 139:58
140:168 141:121 142:83 143:37 144:151 145:14
146:174 147:139 148:210 149:92 150:40 151:127
152:262 153:34 154:15 155:99 156:77 157:126
158:69 159:127 160:18 161:68 162:154 163:100
164:255 165:130 166:227 167:172 168:130 169:59
170:343 171:2 192:5484 193:2365 194:2061 195:942
196:398 198:3688 199:3230 200:2572 202:3222 203:4620
204:3259 205:2177 206:2562 207:2680 208:2676 209:2696
210:587 211:223 212:917 213:641 214:9 215:19
216:3006 217:456 218:39 219:41
End of report
1
0
This is an auto-generated mail on Fri Jun 7 23:00:00 PDT 2002
It is not checked before it leaves my workstation. However, hopefully
you will find this report interesting and will take the time to look
through this to see if you can improve the amount of aggregation you
perform.
Check http://www.employees.org/~tbates/cidr-report.html for a daily
update of this report.
NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for
the regional version of this report.
NEW: Check http://www.employees.org/~tbates/autnums.html for a complete
list of autonomous system number to name mappings as used by the CIDR-Report.
The report is split into sections:
0) General Status
List the route table history for the last week, list any possibly
bogus routes seen and give some status on ASes.
1) Gains by aggregating at the origin AS level
This lists the "Top 30" players who if they decided to aggregate
their announced classful prefixes at the origin AS level could
make a significant difference in the reduction of the current
size of the Internet routing table. This calculation does not
take into account the inclusion of holes when forming an aggregate
so it is possible even larger reduction should be possible.
2) Weekly Delta
A summary of the last weeks changes in terms of withdrawn and
added routes. Please note that this is only a snapshot but does
give some indication of ASes participating in CIDR. Clearly,
it is generally a good thing to see a large amount of withdrawls.
3) Interesting aggregates
Interesting here means not an aggregate made as a set of
classful routes.
Thanks to GX Networks for giving me access to their routing tables once a
day.
Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>.
------------------------------------------------------------------------------
CIDR REPORT for 07Jun02
0) General Status
Table History
-------------
Date Prefixes
310502 110978
010602 110824
020602 110920
030602 110922
040602 111222
050602 111490
060602 111589
070602 111313
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 192.0.2.0 from AS1103
AS Summary
----------
Number of ASes in routing system: 13089
Number of ASes announcing only one prefix: 7961 (4467 cidr, 3494 classful)
Largest number of cidr routes: 646 announced by AS701
Largest number of classful routes: 1359 announced by AS701
1) Gains by aggregating at the origin AS level
--- 07Jun02 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 1359 1091 268 19.7% UUNET Technologies, Inc.
AS1221 1089 843 246 22.6% Telstra Pty Ltd
AS17557 292 104 188 64.4% Pakistan Telecom
AS852 590 431 159 26.9% Telus Advanced Communications
AS7018 818 687 131 16.0% AT&T
AS6595 177 57 120 67.8% DoD Education Activity Network As
AS16473 194 76 118 60.8% Bell South
AS705 304 204 100 32.9% UUNET Technologies, Inc.
AS19632 98 4 94 95.9% Metropolis Intercom S.A.
AS4151 234 141 93 39.7% USDA
AS12302 120 32 88 73.3% MobiFon S.A.
AS7303 150 65 85 56.7% Telecom Argentina Stet-France Tel
AS7046 331 246 85 25.7% UUNET Technologies, Inc.
AS16814 104 19 85 81.7% NSS, S.A.
AS1239 506 421 85 16.8% Sprint
AS2048 181 104 77 42.5% State of Louisiana
AS577 267 194 73 27.3% Bell Advanced Communications Inc.
AS4755 189 118 71 37.6% Videsh Sanchar Nigam Ltd. Autonom
AS724 230 161 69 30.0% DLA Systems Automation Center
AS4323 408 339 69 16.9% Time Warner Communications, Inc.
AS226 154 91 63 40.9% Los Nettos
AS3464 166 105 61 36.7% Alabama SuperComputer Network
AS19834 64 4 60 93.8% NetForce, Inc.
AS10620 83 23 60 72.3% TVCABLE BOGOTA
AS1 450 392 58 12.9% GENUITY
AS3908 308 251 57 18.5% Supernet, Inc.
AS16758 63 6 57 90.5% IKON Office Solutions
AS209 314 258 56 17.8% Qwest
AS9051 79 27 52 65.8% INCONET Autonomous System
AS6535 62 15 47 75.8% Chilesat Servicios Empresariales
Total 55269 42687 12582 22.8%
For the rest of the previous weeks gain information please see
http://www.employees.org:80/~tbates/cidr-report.html
2) Weekly Delta
Please see
http://www.employees.org:80/~tbates/cidr-report.html
for this part of the report
3) Interesting aggregates
Please see
http://www.employees.org:80/~tbates/cidr-report.html
for this part of the report
1
0