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 09 Aug, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 265478 Prefixes after maximum aggregation: 129570 Deaggregation factor: 2.05 Unique aggregates announced to Internet: 129591 Total ASes present in the Internet Routing Table: 28883 Prefixes per ASN: 9.19 Origin-only ASes present in the Internet Routing Table: 25165 Origin ASes announcing only one prefix: 12193 Transit ASes present in the Internet Routing Table: 3718 Transit-only ASes present in the Internet Routing Table: 81 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 25 Max AS path prepend of ASN ( 3816) 15 Prefixes from unregistered ASNs in the Routing Table: 569 Unregistered ASNs in the Routing Table: 209 Number of 32-bit ASNs allocated by the RIRs: 55 Prefixes from 32-bit ASNs in the Routing Table: 7 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 778 Number of addresses announced to Internet: 1889709152 Equivalent to 112 /8s, 162 /16s and 172 /24s Percentage of available address space announced: 51.0 Percentage of allocated address space announced: 61.9 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 73.0 Total number of prefixes smaller than registry allocations: 130048 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 61000 Total APNIC prefixes after maximum aggregation: 22709 APNIC Deaggregation factor: 2.69 Prefixes being announced from the APNIC address blocks: 57975 Unique aggregates announced from the APNIC address blocks: 26131 APNIC Region origin ASes present in the Internet Routing Table: 3322 APNIC Prefixes per ASN: 17.45 APNIC Region origin ASes announcing only one prefix: 880 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: 370241056 Equivalent to 22 /8s, 17 /16s and 110 /24s Percentage of available APNIC address space announced: 78.8 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: 121751 Total ARIN prefixes after maximum aggregation: 65124 ARIN Deaggregation factor: 1.87 Prefixes being announced from the ARIN address blocks: 91093 Unique aggregates announced from the ARIN address blocks: 34943 ARIN Region origin ASes present in the Internet Routing Table: 12344 ARIN Prefixes per ASN: 7.38 ARIN Region origin ASes announcing only one prefix: 4761 ARIN Region transit ASes present in the Internet Routing Table: 1179 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 360292768 Equivalent to 21 /8s, 121 /16s and 161 /24s Percentage of available ARIN address space announced: 74.1 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: 57093 Total RIPE prefixes after maximum aggregation: 34735 RIPE Deaggregation factor: 1.64 Prefixes being announced from the RIPE address blocks: 52243 Unique aggregates announced from the RIPE address blocks: 35108 RIPE Region origin ASes present in the Internet Routing Table: 11705 RIPE Prefixes per ASN: 4.46 RIPE Region origin ASes announcing only one prefix: 6155 RIPE Region transit ASes present in the Internet Routing Table: 1764 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 368507008 Equivalent to 21 /8s, 246 /16s and 248 /24s Percentage of available RIPE address space announced: 84.5 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: 21040 Total LACNIC prefixes after maximum aggregation: 5302 LACNIC Deaggregation factor: 3.97 Prefixes being announced from the LACNIC address blocks: 19279 Unique aggregates announced from the LACNIC address blocks: 10899 LACNIC Region origin ASes present in the Internet Routing Table: 977 LACNIC Prefixes per ASN: 19.73 LACNIC Region origin ASes announcing only one prefix: 319 LACNIC Region transit ASes present in the Internet Routing Table: 165 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 25 Number of LACNIC addresses announced to Internet: 54245376 Equivalent to 3 /8s, 59 /16s and 184 /24s Percentage of available LACNIC address space announced: 53.9 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: 4028 Total AfriNIC prefixes after maximum aggregation: 1224 AfriNIC Deaggregation factor: 3.29 Prefixes being announced from the AfriNIC address blocks: 4372 Unique aggregates announced from the AfriNIC address blocks: 1913 AfriNIC Region origin ASes present in the Internet Routing Table: 246 AfriNIC Prefixes per ASN: 17.77 AfriNIC Region origin ASes announcing only one prefix: 78 AfriNIC Region transit ASes present in the Internet Routing Table: 49 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 12534016 Equivalent to 0 /8s, 191 /16s and 65 /24s Percentage of available AfriNIC address space announced: 37.4 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 1691 345 178 Videsh Sanchar Nigam Ltd. Aut 17488 1288 88 92 Hathway IP Over Cable Interne 9583 1174 92 492 Sify Limited 4766 856 6390 349 Korea Telecom (KIX) 4134 833 13516 353 CHINANET-BACKBONE 23577 831 35 703 Korea Telecom (ATM-MPLS) 4780 712 353 64 Digital United Inc. 18101 712 167 33 Reliance Infocom Ltd Internet 9498 669 291 54 BHARTI BT INTERNET LTD. 4808 618 1112 137 CNCGROUP IP network: China169 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 6389 3200 3358 208 bellsouth.net, inc. 209 2975 3860 625 Qwest 6298 1778 270 768 Cox Communicatons 2386 1560 707 893 AT&T Data Communications Serv 4323 1489 1078 380 Time Warner Telecom 1785 1450 478 102 AppliedTheory Corporation 7018 1411 5830 989 AT&T WorldNet Services 11492 1218 151 23 Cable One 20115 1117 1082 571 Charter Communications 18566 1045 296 10 Covad 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 3292 414 1792 372 TDC Tele Danmark 3215 371 2756 106 France Telecom Transpac 8452 357 188 11 TEDATA 3301 333 1460 304 TeliaNet Sweden 3320 323 7047 271 Deutsche Telekom AG 8866 316 77 21 Bulgarian Telecommunication C 8551 288 270 38 Bezeq International 5462 286 666 27 Telewest Broadband 680 274 2047 264 DFN-IP service G-WiN 6746 268 126 243 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 1476 2592 225 UniNet S.A. de C.V. 11830 624 299 9 Instituto Costarricense de El 22047 565 270 14 VTR PUNTO NET S.A. 7303 475 235 63 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 6471 417 85 48 ENTEL CHILE S.A. 11172 409 118 71 Servicios Alestra S.A de C.V 10620 407 107 51 TVCABLE BOGOTA 14117 375 23 9 Telefonica del Sur S.A. 20299 346 24 101 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 495 63 28 LINKdotNET AS number 20858 402 34 3 EgyNet 3741 269 855 224 The Internet Solution 2018 211 213 130 Tertiary Education Network 6713 143 135 11 Itissalat Al-MAGHRIB 33783 135 10 12 EEPAD TISP TELECOM & INTERNET 5713 129 540 74 Telkom SA Ltd 5536 120 8 17 Internet Egypt Network 33776 114 6 3 Starcomms Nigeria Limited 29571 107 13 8 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 6389 3200 3358 208 bellsouth.net, inc. 209 2975 3860 625 Qwest 6298 1778 270 768 Cox Communicatons 4755 1691 345 178 Videsh Sanchar Nigam Ltd. Aut 2386 1560 707 893 AT&T Data Communications Serv 4323 1489 1078 380 Time Warner Telecom 8151 1476 2592 225 UniNet S.A. de C.V. 1785 1450 478 102 AppliedTheory Corporation 7018 1411 5830 989 AT&T WorldNet Services 17488 1288 88 92 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 209 2975 2350 Qwest 4755 1691 1513 Videsh Sanchar Nigam Ltd. Aut 1785 1450 1348 AppliedTheory Corporation 8151 1476 1251 UniNet S.A. de C.V. 17488 1288 1196 Hathway IP Over Cable Interne 11492 1218 1195 Cable One 4323 1489 1109 Time Warner Telecom 18566 1045 1035 Covad Communications 6298 1778 1010 Cox Communicatons 22773 973 910 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 7018 AT&T WorldNet Servic 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 24.51.159.0/24 7843 Adelphia Corp. 24.54.224.0/19 20001 HoldCo LLC - Road Runner 24.75.160.0/19 7843 Adelphia Corp. 24.142.40.0/21 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 63.140.213.0/24 22555 Universal Talkware Corporatio 63.143.71.0/24 701 UUNET Technologies, Inc. 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 /10:17 /11:45 /12:146 /13:293 /14:523 /15:1054 /16:10035 /17:4344 /18:7529 /19:15967 /20:18606 /21:18147 /22:22946 /23:23926 /24:139133 /25:843 /26:1036 /27:758 /28:86 /29:9 /30:1 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2035 3200 bellsouth.net, inc. 6298 1752 1778 Cox Communicatons 209 1726 2975 Qwest 2386 1236 1560 AT&T Data Communications Serv 11492 1199 1218 Cable One 17488 1096 1288 Hathway IP Over Cable Interne 1785 1064 1450 AppliedTheory Corporation 4755 1042 1691 Videsh Sanchar Nigam Ltd. Aut 9583 1030 1174 Sify Limited 18566 1026 1045 Covad Communications Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:8 8:129 12:2102 13:2 14:1 15:22 16:3 17:5 18:13 20:35 24:1085 32:59 38:479 40:92 41:695 43:1 44:2 47:12 52:3 55:3 56:3 57:27 58:526 59:512 60:456 61:992 62:1208 63:2036 64:3262 65:2376 66:3496 67:1221 68:743 69:2289 70:823 71:116 72:2008 73:6 74:1086 75:156 76:308 77:754 78:805 79:218 80:976 81:849 82:610 83:378 84:570 85:966 86:397 87:684 88:340 89:1296 90:33 91:1389 92:247 93:720 94:95 96:53 97:44 98:301 99:3 114:81 115:34 116:923 117:330 118:193 119:442 120:63 121:581 122:808 123:372 124:904 125:1176 128:360 129:198 130:135 131:411 132:67 133:9 134:187 135:33 136:222 137:94 138:146 139:88 140:500 141:103 142:404 143:335 144:390 145:51 146:372 147:156 148:517 149:198 150:129 151:181 152:143 153:136 154:10 155:252 156:174 157:285 158:186 159:294 160:273 161:119 162:216 163:155 164:516 165:455 166:318 167:329 168:623 169:139 170:425 171:32 172:10 188:1 189:431 190:2264 192:5799 193:4140 194:3241 195:2550 196:1025 198:3738 199:3307 200:5588 201:1471 202:7691 203:8077 204:3962 205:2144 206:2361 207:2760 208:3502 209:3465 210:2586 211:1076 212:1425 213:1600 214:172 215:50 216:4483 217:1212 218:343 219:428 220:1065 221:455 222:309 End of report