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@lists.apnic.net For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 04:00 +10GMT Sat 16 Feb, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 246017 Prefixes after maximum aggregation: 125334 Deaggregation factor: 1.96 Unique aggregates announced to Internet: 120557 Total ASes present in the Internet Routing Table: 27382 Prefixes per ASN: 8.98 Origin-only ASes present in the Internet Routing Table: 23879 Origin ASes announcing only one prefix: 11589 Transit ASes present in the Internet Routing Table: 3503 Transit-only ASes present in the Internet Routing Table: 74 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 19 Max AS path prepend of ASN (29642) 15 Prefixes from unregistered ASNs in the Routing Table: 41 Unregistered ASNs in the Routing Table: 15 Number of 32-bit ASNs allocated by the RIRs: 46 Prefixes from 32-bit ASNs in the Routing Table: 9 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 871 Number of addresses announced to Internet: 1834332256 Equivalent to 109 /8s, 85 /16s and 176 /24s Percentage of available address space announced: 49.5 Percentage of allocated address space announced: 61.5 Percentage of available address space allocated: 80.5 Percentage of address space in use by end-sites: 70.1 Total number of prefixes smaller than registry allocations: 116298 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 56489 Total APNIC prefixes after maximum aggregation: 21163 APNIC Deaggregation factor: 2.67 Prefixes being announced from the APNIC address blocks: 53983 Unique aggregates announced from the APNIC address blocks: 23916 APNIC Region origin ASes present in the Internet Routing Table: 3127 APNIC Prefixes per ASN: 17.26 APNIC Region origin ASes announcing only one prefix: 824 APNIC Region transit ASes present in the Internet Routing Table: 479 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 329581984 Equivalent to 19 /8s, 165 /16s and 5 /24s Percentage of available APNIC address space announced: 75.6 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 115479 Total ARIN prefixes after maximum aggregation: 65634 ARIN Deaggregation factor: 1.76 Prefixes being announced from the ARIN address blocks: 84224 Unique aggregates announced from the ARIN address blocks: 33644 ARIN Region origin ASes present in the Internet Routing Table: 12147 ARIN Prefixes per ASN: 6.93 ARIN Region origin ASes announcing only one prefix: 4689 ARIN Region transit ASes present in the Internet Routing Table: 1147 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 15 Number of ARIN addresses announced to Internet: 357097600 Equivalent to 21 /8s, 72 /16s and 224 /24s Percentage of available ARIN address space announced: 78.8 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 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, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959 ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 52198 Total RIPE prefixes after maximum aggregation: 32717 RIPE Deaggregation factor: 1.60 Prefixes being announced from the RIPE address blocks: 47338 Unique aggregates announced from the RIPE address blocks: 31707 RIPE Region origin ASes present in the Internet Routing Table: 10900 RIPE Prefixes per ASN: 4.34 RIPE Region origin ASes announcing only one prefix: 5703 RIPE Region transit ASes present in the Internet Routing Table: 1653 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 345822848 Equivalent to 20 /8s, 156 /16s and 214 /24s Percentage of available RIPE address space announced: 79.3 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055 RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 18589 Total LACNIC prefixes after maximum aggregation: 4686 LACNIC Deaggregation factor: 3.97 Prefixes being announced from the LACNIC address blocks: 16978 Unique aggregates announced from the LACNIC address blocks: 9322 LACNIC Region origin ASes present in the Internet Routing Table: 905 LACNIC Prefixes per ASN: 18.76 LACNIC Region origin ASes announcing only one prefix: 297 LACNIC Region transit ASes present in the Internet Routing Table: 152 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 48126464 Equivalent to 2 /8s, 222 /16s and 90 /24s Percentage of available LACNIC address space announced: 47.8 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 3220 Total AfriNIC prefixes after maximum aggregation: 1116 AfriNIC Deaggregation factor: 2.89 Prefixes being announced from the AfriNIC address blocks: 3659 Unique aggregates announced from the AfriNIC address blocks: 1750 AfriNIC Region origin ASes present in the Internet Routing Table: 228 AfriNIC Prefixes per ASN: 16.05 AfriNIC Region origin ASes announcing only one prefix: 76 AfriNIC Region transit ASes present in the Internet Routing Table: 42 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 10004480 Equivalent to 0 /8s, 152 /16s and 168 /24s Percentage of available AfriNIC address space announced: 29.8 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4755 1576 386 78 Videsh Sanchar Nigam Ltd. Aut 9498 1159 549 60 BHARTI BT INTERNET LTD. 9583 1132 83 443 Sify Limited 17488 983 63 87 Hathway IP Over Cable Interne 4134 863 11881 311 CHINANET-BACKBONE 4766 852 5495 344 Korea Telecom (KIX) 23577 819 34 698 Korea Telecom (ATM-MPLS) 18101 713 128 65 Reliance Infocom Ltd Internet 9829 596 449 11 BSNL National Internet Backbo 4812 552 940 84 China Telecom (Shanghai) Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1429 6004 990 AT&T WorldNet Services 4323 1388 1012 367 Time Warner Telecom 2386 1363 634 832 AT&T Data Communications Serv 11492 1215 138 15 Cable One 7011 1055 307 608 Citizens Utilities 18566 1042 296 10 Covad Communications 6197 1034 754 511 BellSouth Network Solutions, 174 984 6835 815 Cogent Communications 6478 927 237 112 AT&T Worldnet Services 20115 887 808 484 Charter Communications Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8452 397 188 7 TEDATA 3292 396 1778 359 TDC Tele Danmark 3301 333 1459 304 TeliaNet Sweden 3320 325 7045 269 Deutsche Telekom AG 8866 288 78 24 Bulgarian Telecommunication C 8551 279 267 42 Bezeq International 680 275 2046 256 DFN-IP service G-WiN 3215 272 2607 94 France Telecom Transpac 8708 271 420 241 Romania Data Systems S.A. 6746 270 128 247 Dynamic Network Technologies, Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1153 2421 217 UniNet S.A. de C.V. 11830 555 299 9 Instituto Costarricense de El 7303 443 215 59 Telecom Argentina Stet-France 16814 427 27 10 NSS, S.A. 11172 401 115 65 Servicios Alestra S.A de C.V 6471 397 85 40 ENTEL CHILE S.A. 10620 375 98 35 TVCABLE BOGOTA 14117 351 23 16 Telefonica del Sur S.A. 22047 323 270 14 VTR PUNTO NET S.A. 10481 301 120 10 Prima S.A. Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 406 60 29 LINKdotNET AS number 3741 282 869 224 The Internet Solution 2018 148 276 116 Tertiary Education Network 6713 143 135 11 Itissalat Al-MAGHRIB 5536 120 8 16 Internet Egypt Network 33783 115 10 13 EEPAD TISP TELECOM & INTERNET 33776 99 6 7 Starcomms Nigeria Limited 20858 91 34 3 EgyNet 24835 89 48 7 RAYA Telecom - Egypt 29571 80 13 7 Ci Telecom Autonomous system Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 4755 1576 386 78 Videsh Sanchar Nigam Ltd. Aut 7018 1429 6004 990 AT&T WorldNet Services 4323 1388 1012 367 Time Warner Telecom 2386 1363 634 832 AT&T Data Communications Serv 11492 1215 138 15 Cable One 9498 1159 549 60 BHARTI BT INTERNET LTD. 8151 1153 2421 217 UniNet S.A. de C.V. 9583 1132 83 443 Sify Limited 7011 1055 307 608 Citizens Utilities 18566 1042 296 10 Covad Communications Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 11492 1215 1200 Cable One 9498 1159 1099 BHARTI BT INTERNET LTD. 18566 1042 1032 Covad Communications 4323 1388 1021 Time Warner Telecom 8151 1153 936 UniNet S.A. de C.V. 17488 983 896 Hathway IP Over Cable Interne 6478 927 815 AT&T Worldnet Services 22773 861 796 Cox Communications, Inc. 19262 879 731 Verizon Global Networks 9583 1132 689 Sify Limited Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15190 UNALLOCATED 63.98.176.0/24 701 UUNET Technologies, 18506 UNALLOCATED 63.107.123.0/24 701 UUNET Technologies, 16886 UNALLOCATED 63.109.3.0/24 1239 Sprint 16886 UNALLOCATED 63.167.139.0/24 1239 Sprint 33526 UNALLOCATED 64.128.26.0/24 4323 Time Warner Telecom 21624 UNALLOCATED 65.163.176.0/24 701 UUNET Technologies, 65000 PRIVATE 92.62.240.0/20 24750 Cable Internet Syste 64601 PRIVATE 118.232.77.0/24 9924 Taiwan Fixed Network 64601 PRIVATE 118.232.78.0/24 9924 Taiwan Fixed Network 64601 PRIVATE 118.232.224.0/21 9924 Taiwan Fixed Network Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.48.10.0/23 19548 Adelphia Business Solutions 24.48.12.0/22 19548 Adelphia Business Solutions 24.48.80.0/21 19548 Adelphia Business Solutions 24.54.224.0/19 20001 HoldCo LLC - Road Runner 24.142.40.0/21 7018 AT&T WorldNet Services 24.142.160.0/19 7018 AT&T WorldNet Services 24.246.0.0/17 7018 AT&T WorldNet Services 24.246.128.0/18 7018 AT&T WorldNet Services 60.253.0.0/18 27572 Connexion by Boeing 60.253.64.0/19 27572 Connexion by Boeing Complete listing at http://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:9 /10:16 /11:39 /12:134 /13:277 /14:495 /15:985 /16:9767 /17:4244 /18:7106 /19:15119 /20:17290 /21:16363 /22:20733 /23:21818 /24:128946 /25:863 /26:1106 /27:562 /28:108 /29:9 /30:1 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 11492 1203 1215 Cable One 2386 1066 1363 AT&T Data Communications Serv 18566 1023 1042 Covad Communications 9583 977 1132 Sify Limited 7011 938 1055 Citizens Utilities 4755 931 1576 Videsh Sanchar Nigam Ltd. Aut 6478 926 927 AT&T Worldnet Services 9498 833 1159 BHARTI BT INTERNET LTD. 23577 810 819 Korea Telecom (ATM-MPLS) 17488 798 983 Hathway IP Over Cable Interne Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 8:101 12:1978 13:2 15:21 16:3 17:6 18:13 20:35 22:1 24:1026 25:1 32:61 33:4 38:390 40:65 41:579 44:2 47:8 52:3 55:3 56:3 57:22 58:517 59:425 60:407 61:988 62:1034 63:1958 64:3358 65:2353 66:3656 67:1115 68:633 69:2097 70:474 71:107 72:1488 73:6 74:825 75:169 76:252 77:549 78:491 79:77 80:877 81:824 82:577 83:359 84:463 85:1008 86:392 87:648 88:308 89:1117 90:12 91:981 92:137 93:63 95:1 96:12 97:10 98:54 99:2 114:1 115:1 116:524 117:252 118:78 119:143 121:439 122:691 123:295 124:798 125:1122 128:310 129:198 130:132 131:398 132:69 133:9 134:188 135:37 136:218 137:117 138:156 139:63 140:494 141:106 142:377 143:270 144:327 145:53 146:337 147:132 148:478 149:178 150:124 151:148 152:95 153:131 154:11 155:288 156:199 157:250 158:163 159:214 160:229 161:99 162:202 163:192 164:563 165:423 166:292 167:308 168:576 169:132 170:431 171:28 172:3 189:152 190:1369 192:5768 193:4098 194:3244 195:2337 196:975 198:3783 199:3199 200:5445 201:1273 202:7566 203:7804 204:3971 205:2060 206:2415 207:2719 208:3152 209:3577 210:2524 211:1034 212:1268 213:1576 214:449 215:47 216:4161 217:1179 218:340 219:400 220:1097 221:411 222:301 End of report