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 21 Jun, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 260459 Prefixes after maximum aggregation: 128122 Deaggregation factor: 2.03 Unique aggregates announced to Internet: 126833 Total ASes present in the Internet Routing Table: 28517 Prefixes per ASN: 9.13 Origin-only ASes present in the Internet Routing Table: 24858 Origin ASes announcing only one prefix: 12026 Transit ASes present in the Internet Routing Table: 3659 Transit-only ASes present in the Internet Routing Table: 79 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 18 Max AS path prepend of ASN ( 3816) 15 Prefixes from unregistered ASNs in the Routing Table: 618 Unregistered ASNs in the Routing Table: 225 Number of 32-bit ASNs allocated by the RIRs: 47 Prefixes from 32-bit ASNs in the Routing Table: 8 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 777 Number of addresses announced to Internet: 1862946912 Equivalent to 111 /8s, 10 /16s and 80 /24s Percentage of available address space announced: 50.3 Percentage of allocated address space announced: 61.0 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 72.3 Total number of prefixes smaller than registry allocations: 126692 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 59314 Total APNIC prefixes after maximum aggregation: 22110 APNIC Deaggregation factor: 2.68 Prefixes being announced from the APNIC address blocks: 56332 Unique aggregates announced from the APNIC address blocks: 24955 APNIC Region origin ASes present in the Internet Routing Table: 3277 APNIC Prefixes per ASN: 17.19 APNIC Region origin ASes announcing only one prefix: 873 APNIC Region transit ASes present in the Internet Routing Table: 512 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 356094240 Equivalent to 21 /8s, 57 /16s and 145 /24s Percentage of available APNIC address space announced: 75.8 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, 112/8, 113/8, 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: 120010 Total ARIN prefixes after maximum aggregation: 65020 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 89707 Unique aggregates announced from the ARIN address blocks: 34758 ARIN Region origin ASes present in the Internet Routing Table: 12231 ARIN Prefixes per ASN: 7.33 ARIN Region origin ASes announcing only one prefix: 4734 ARIN Region transit ASes present in the Internet Routing Table: 1142 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 15 Number of ARIN addresses announced to Internet: 356059296 Equivalent to 21 /8s, 57 /16s and 8 /24s Percentage of available ARIN address space announced: 73.2 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, 46080-47103 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, 173/8, 174/8, 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: 56169 Total RIPE prefixes after maximum aggregation: 34107 RIPE Deaggregation factor: 1.65 Prefixes being announced from the RIPE address blocks: 51378 Unique aggregates announced from the RIPE address blocks: 34372 RIPE Region origin ASes present in the Internet Routing Table: 11510 RIPE Prefixes per ASN: 4.46 RIPE Region origin ASes announcing only one prefix: 6031 RIPE Region transit ASes present in the Internet Routing Table: 1735 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 361394560 Equivalent to 21 /8s, 138 /16s and 113 /24s Percentage of available RIPE address space announced: 82.8 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, 47104-48127 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: 20280 Total LACNIC prefixes after maximum aggregation: 5171 LACNIC Deaggregation factor: 3.92 Prefixes being announced from the LACNIC address blocks: 18502 Unique aggregates announced from the LACNIC address blocks: 10386 LACNIC Region origin ASes present in the Internet Routing Table: 958 LACNIC Prefixes per ASN: 19.31 LACNIC Region origin ASes announcing only one prefix: 310 LACNIC Region transit ASes present in the Internet Routing Table: 162 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 17 Number of LACNIC addresses announced to Internet: 52542464 Equivalent to 3 /8s, 33 /16s and 188 /24s Percentage of available LACNIC address space announced: 52.2 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: 4071 Total AfriNIC prefixes after maximum aggregation: 1202 AfriNIC Deaggregation factor: 3.39 Prefixes being announced from the AfriNIC address blocks: 4340 Unique aggregates announced from the AfriNIC address blocks: 1891 AfriNIC Region origin ASes present in the Internet Routing Table: 241 AfriNIC Prefixes per ASN: 18.01 AfriNIC Region origin ASes announcing only one prefix: 78 AfriNIC Region transit ASes present in the Internet Routing Table: 48 Average AfriNIC Region AS path length visible: 4.0 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 12221440 Equivalent to 0 /8s, 186 /16s and 124 /24s Percentage of available AfriNIC address space announced: 36.4 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 1649 387 89 Videsh Sanchar Nigam Ltd. Aut 9498 1183 550 62 BHARTI BT INTERNET LTD. 17488 1156 80 79 Hathway IP Over Cable Interne 9583 1138 112 415 Sify Limited 4766 846 6006 342 Korea Telecom (KIX) 23577 831 35 706 Korea Telecom (ATM-MPLS) 4134 824 12915 321 CHINANET-BACKBONE 18101 696 168 35 Reliance Infocom Ltd Internet 9829 598 450 12 BSNL National Internet Backbo 1221 551 1919 424 Telstra Pty Ltd 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 209 3012 3874 620 Qwest 6389 2446 3138 190 bellsouth.net, inc. 2386 1493 663 874 AT&T Data Communications Serv 4323 1459 1044 376 Time Warner Telecom 7018 1397 5824 977 AT&T WorldNet Services 11492 1229 149 12 Cable One 1785 1077 510 104 AppliedTheory Corporation 18566 1045 296 10 Covad Communications 20115 1042 1064 565 Charter Communications 7011 1026 288 561 Citizens Utilities 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 3292 414 1773 372 TDC Tele Danmark 8452 344 188 11 TEDATA 3301 335 1460 305 TeliaNet Sweden 8866 319 77 21 Bulgarian Telecommunication C 3320 316 7045 266 Deutsche Telekom AG 5462 292 666 27 Telewest Broadband 3215 286 2742 89 France Telecom Transpac 8551 283 269 38 Bezeq International 680 274 2047 264 DFN-IP service G-WiN 8708 266 421 250 Romania Data Systems S.A. 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 1246 2464 227 UniNet S.A. de C.V. 11830 603 299 9 Instituto Costarricense de El 22047 565 270 14 VTR PUNTO NET S.A. 7303 467 230 69 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 6471 412 85 46 ENTEL CHILE S.A. 11172 410 118 70 Servicios Alestra S.A de C.V 10620 394 101 72 TVCABLE BOGOTA 14117 374 23 9 Telefonica del Sur S.A. 20299 333 23 97 NEWCOM AMERICAS 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 475 61 30 LINKdotNET AS number 20858 391 34 3 EgyNet 3741 283 853 224 The Internet Solution 2018 201 205 85 Tertiary Education Network 5713 153 541 92 Telkom SA Ltd 6713 143 135 11 Itissalat Al-MAGHRIB 33783 135 10 12 EEPAD TISP TELECOM & INTERNET 5536 121 8 16 Internet Egypt Network 29571 102 13 8 Ci Telecom Autonomous system 33776 100 6 3 Starcomms Nigeria Limited 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 209 3012 3874 620 Qwest 6389 2446 3138 190 bellsouth.net, inc. 4755 1649 387 89 Videsh Sanchar Nigam Ltd. Aut 2386 1493 663 874 AT&T Data Communications Serv 4323 1459 1044 376 Time Warner Telecom 7018 1397 5824 977 AT&T WorldNet Services 8151 1246 2464 227 UniNet S.A. de C.V. 11492 1229 149 12 Cable One 9498 1183 550 62 BHARTI BT INTERNET LTD. 17488 1156 80 79 Hathway IP Over Cable Interne Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 6389 2446 2256 bellsouth.net, inc. 4755 1649 1560 Videsh Sanchar Nigam Ltd. Aut 11492 1229 1217 Cable One 9498 1183 1121 BHARTI BT INTERNET LTD. 4323 1459 1083 Time Warner Telecom 17488 1156 1077 Hathway IP Over Cable Interne 18566 1045 1035 Covad Communications 8151 1246 1019 UniNet S.A. de C.V. 1785 1077 973 AppliedTheory Corporation 22773 963 901 Cox Communications, Inc. Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 16927 UNALLOCATED 12.0.252.0/23 701 UUNET Technologies, 22492 UNALLOCATED 12.2.46.0/24 7018 AT&T WorldNet Servic 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic 13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic 13632 UNALLOCATED 12.31.25.0/24 6517 Yipes Communications 27220 UNALLOCATED 12.35.204.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.48.244.0/23 7843 Adelphia Corp. 24.51.159.0/24 7843 Adelphia Corp. 24.54.224.0/19 20001 HoldCo LLC - Road Runner 24.75.160.0/19 7843 Adelphia Corp. 24.75.192.0/18 7843 Adelphia Corp. 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 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 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 /8:18 /9:9 /10:16 /11:43 /12:143 /13:280 /14:514 /15:1031 /16:9961 /17:4344 /18:7371 /19:15700 /20:18330 /21:17995 /22:22352 /23:23272 /24:136306 /25:865 /26:1032 /27:778 /28:82 /29:9 /30:1 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 209 1768 3012 Qwest 6389 1510 2446 bellsouth.net, inc. 11492 1210 1229 Cable One 2386 1189 1493 AT&T Data Communications Serv 18566 1026 1045 Covad Communications 4755 994 1649 Videsh Sanchar Nigam Ltd. Aut 9583 988 1138 Sify Limited 6298 974 989 Cox Communicatons 17488 968 1156 Hathway IP Over Cable Interne 6478 948 957 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:7 8:119 12:2063 13:1 15:22 16:3 17:5 18:13 20:35 24:1076 25:1 32:61 38:445 40:92 41:643 43:1 44:2 47:12 52:3 55:3 56:3 57:23 58:464 59:487 60:442 61:990 62:1221 63:2033 64:3296 65:2411 66:3582 67:1216 68:694 69:2272 70:679 71:121 72:1821 73:5 74:1016 75:157 76:297 77:732 78:726 79:193 80:957 81:846 82:596 83:398 84:578 85:1018 86:423 87:694 88:329 89:1268 90:14 91:1286 92:202 93:581 94:51 96:36 97:25 98:167 99:3 112:1 113:1 114:38 116:724 117:327 118:149 119:446 120:61 121:547 122:782 123:349 124:862 125:1134 128:362 129:202 130:131 131:408 132:67 133:9 134:177 135:33 136:219 137:86 138:146 139:78 140:491 141:99 142:419 143:315 144:356 145:51 146:363 147:155 148:507 149:194 150:130 151:193 152:143 153:135 154:10 155:277 156:177 157:273 158:168 159:242 160:266 161:114 162:234 163:187 164:522 165:446 166:319 167:325 168:618 169:138 170:428 171:29 172:10 189:210 190:2119 192:5795 193:4101 194:3204 195:2505 196:1075 198:3739 199:3271 200:5528 201:1471 202:7613 203:7932 204:3975 205:2110 206:2392 207:2767 208:3373 209:3491 210:2520 211:1012 212:1413 213:1652 214:149 215:49 216:4397 217:1198 218:346 219:415 220:1071 221:471 222:309 End of report