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Routing Table Report 00:00 GMT Thu 14 Aug, 2008
NB: RouteViews data includes iBGP information from some ASNs. Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/rviews/
Analysis Summary ----------------
BGP routing table entries examined: 272874 Prefixes after maximum aggregation: 130946 Deaggregation factor: 2.08 Unique aggregates announced to Internet: 129045 Total ASes present in the Internet Routing Table: 28968 Prefixes per ASN: 9.42 Origin-only ASes present in the Internet Routing Table: 25111 Origin ASes announcing only one prefix: 12200 Transit ASes present in the Internet Routing Table: 3857 Transit-only ASes present in the Internet Routing Table: 91 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 26 Max AS path prepend of ASN (17957) 20 Prefixes from unregistered ASNs in the Routing Table: 586 Unregistered ASNs in the Routing Table: 222 Number of 32-bit ASNs allocated by the RIRs: 57 Prefixes from 32-bit ASNs in the Routing Table: 7 Special use prefixes present in the Routing Table: 6 Prefixes being announced from unallocated address space: 826 Number of addresses announced to Internet: 1910266300 Equivalent to 113 /8s, 220 /16s and 89 /24s Percentage of available address space announced: 51.5 Percentage of allocated address space announced: 62.6 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 73.2 Total number of prefixes smaller than registry allocations: 134984
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 64122 Total APNIC prefixes after maximum aggregation: 22640 APNIC Deaggregation factor: 2.83 Prefixes being announced from the APNIC address blocks: 61204 Unique aggregates announced from the APNIC address blocks: 25865 APNIC Region origin ASes present in the Internet Routing Table: 3327 APNIC Prefixes per ASN: 18.40 APNIC Region origin ASes announcing only one prefix: 881 APNIC Region transit ASes present in the Internet Routing Table: 534 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 24 Number of APNIC addresses announced to Internet: 371698336 Equivalent to 22 /8s, 39 /16s and 170 /24s Percentage of available APNIC address space announced: 79.1
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: 122750 Total ARIN prefixes after maximum aggregation: 66464 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 91245 Unique aggregates announced from the ARIN address blocks: 34803 ARIN Region origin ASes present in the Internet Routing Table: 12370 ARIN Prefixes per ASN: 7.38 ARIN Region origin ASes announcing only one prefix: 4762 ARIN Region transit ASes present in the Internet Routing Table: 1220 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 22 Number of ARIN addresses announced to Internet: 361832961 Equivalent to 21 /8s, 145 /16s and 34 /24s Percentage of available ARIN address space announced: 74.4
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: 58031 Total RIPE prefixes after maximum aggregation: 34860 RIPE Deaggregation factor: 1.66 Prefixes being announced from the RIPE address blocks: 53413 Unique aggregates announced from the RIPE address blocks: 35110 RIPE Region origin ASes present in the Internet Routing Table: 11735 RIPE Prefixes per ASN: 4.55 RIPE Region origin ASes announcing only one prefix: 6156 RIPE Region transit ASes present in the Internet Routing Table: 1817 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 21 Number of RIPE addresses announced to Internet: 369104896 Equivalent to 22 /8s, 0 /16s and 24 /24s Percentage of available RIPE address space announced: 84.6
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: 23362 Total LACNIC prefixes after maximum aggregation: 5268 LACNIC Deaggregation factor: 4.43 Prefixes being announced from the LACNIC address blocks: 21616 Unique aggregates announced from the LACNIC address blocks: 10758 LACNIC Region origin ASes present in the Internet Routing Table: 981 LACNIC Prefixes per ASN: 22.03 LACNIC Region origin ASes announcing only one prefix: 319 LACNIC Region transit ASes present in the Internet Routing Table: 169 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 26 Number of LACNIC addresses announced to Internet: 54379796 Equivalent to 3 /8s, 61 /16s and 197 /24s Percentage of available LACNIC address space announced: 54.0
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: 4023 Total AfriNIC prefixes after maximum aggregation: 1232 AfriNIC Deaggregation factor: 3.27 Prefixes being announced from the AfriNIC address blocks: 4372 Unique aggregates announced from the AfriNIC address blocks: 1871 AfriNIC Region origin ASes present in the Internet Routing Table: 251 AfriNIC Prefixes per ASN: 17.42 AfriNIC Region origin ASes announcing only one prefix: 82 AfriNIC Region transit ASes present in the Internet Routing Table: 51 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC addresses announced to Internet: 12538624 Equivalent to 0 /8s, 191 /16s and 83 /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 4538 3294 3134 42 China Education and Research 4755 1698 578 91 Videsh Sanchar Nigam Ltd. Aut 17488 1300 88 97 Hathway IP Over Cable Interne 9583 1176 92 493 Sify Limited 4134 848 13516 355 CHINANET-BACKBONE 4766 829 6390 352 Korea Telecom (KIX) 23577 829 34 734 Korea Telecom (ATM-MPLS) 4780 720 353 61 Digital United Inc. 18101 692 167 33 Reliance Infocom Ltd Internet 9498 679 291 56 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 6389 3198 3358 208 bellsouth.net, inc. 6298 2003 307 734 Cox Communicatons 2386 1560 676 903 AT&T Data Communications Serv 4323 1489 1076 378 Time Warner Telecom 1785 1453 478 100 AppliedTheory Corporation 3549 1447 539 212 Global Crossing 7018 1413 9918 982 AT&T WorldNet Services 1803 1256 7 999 SPRINT 11492 1214 151 22 Cable One 20115 1113 1080 573 Charter Communications
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 3292 416 1776 371 TDC Tele Danmark 3215 395 2756 106 France Telecom Transpac 8452 357 188 11 TEDATA 3301 333 1460 304 TeliaNet Sweden 3320 322 7047 270 Deutsche Telekom AG 8866 316 77 21 Bulgarian Telecommunication C 5462 307 666 27 Telewest Broadband 8551 287 270 38 Bezeq International 1257 278 1131 203 SWIPnet Swedish IP Network 680 274 2047 264 DFN-IP service G-WiN
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7303 1699 236 65 Telecom Argentina Stet-France 8151 1516 2593 221 UniNet S.A. de C.V. 8167 669 593 43 TELESC - Telecomunicacoes de 11830 664 299 9 Instituto Costarricense de El 22047 565 270 14 VTR PUNTO NET S.A. 16814 426 27 10 NSS, S.A. 6471 417 85 48 ENTEL CHILE S.A. 11172 410 118 72 Servicios Alestra S.A de C.V 16735 409 92 12 Companhia de Telecomunicacoes 10620 382 101 85 TVCABLE BOGOTA
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 24863 496 64 28 LINKdotNET AS number 20858 402 34 3 EgyNet 3741 267 855 224 The Internet Solution 2018 211 213 130 Tertiary Education Network 6713 144 135 11 Itissalat Al-MAGHRIB 33783 136 10 13 EEPAD TISP TELECOM & INTERNET 5713 129 540 74 Telkom SA Ltd 5536 120 8 17 Internet Egypt Network 33776 119 6 3 Starcomms Nigeria Limited 29571 107 13 8 Ci Telecom Autonomous system
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary ----------------------------------
ASN No of nets /20 equiv MaxAgg Description 4538 3294 3134 42 China Education and Research 6389 3198 3358 208 bellsouth.net, inc. 6298 2003 307 734 Cox Communicatons 7303 1699 236 65 Telecom Argentina Stet-France 4755 1698 578 91 Videsh Sanchar Nigam Ltd. Aut 2386 1560 676 903 AT&T Data Communications Serv 8151 1516 2593 221 UniNet S.A. de C.V. 4323 1489 1076 378 Time Warner Telecom 1785 1453 478 100 AppliedTheory Corporation 3549 1447 539 212 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 6389 3198 2990 bellsouth.net, inc. 7303 1699 1634 Telecom Argentina Stet-France 4755 1698 1607 Videsh Sanchar Nigam Ltd. Aut 1785 1453 1353 AppliedTheory Corporation 8151 1516 1295 UniNet S.A. de C.V. 6298 2003 1269 Cox Communicatons 3549 1447 1235 Global Crossing 17488 1300 1203 Hathway IP Over Cable Interne 11492 1214 1192 Cable One 4323 1489 1111 Time Warner Telecom
Complete listing at http://thyme.apnic.net/rviews/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 1239 Sprint 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/rviews/data-badAS
Prefixes from private and non-routed address space (Global) -----------------------------------------------------------
Prefix Origin AS Description 10.29.246.47/32 286 KPNQwest Backbone AS 10.29.246.48/32 286 KPNQwest Backbone AS 10.29.246.49/32 286 KPNQwest Backbone AS 10.29.248.65/32 286 KPNQwest Backbone AS 10.29.248.71/32 286 KPNQwest Backbone AS 192.168.192.0/21 7497 Computer Network Information
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses --------------------------------
Network Origin AS Description 24.48.0.0/13 19548 Adelphia Business Solutions 24.51.159.0/24 7843 Adelphia Corp. 24.53.86.0/24 7843 Adelphia Corp. 24.54.224.0/19 20001 HoldCo LLC - Road Runner 24.55.0.0/18 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
Complete listing at http://thyme.apnic.net/rviews/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 /10:17 /11:46 /12:147 /13:299 /14:535 /15:1062 /16:10120 /17:4401 /18:7606 /19:16012 /20:19004 /21:18367 /22:23768 /23:24565 /24:142505 /25:873 /26:1126 /27:385 /28:731 /29:839 /30:213 /31:0 /32:225
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2035 3198 bellsouth.net, inc. 6298 1977 2003 Cox Communicatons 4538 1759 3294 China Education and Research 2386 1236 1560 AT&T Data Communications Serv 1803 1234 1256 SPRINT 7303 1202 1699 Telecom Argentina Stet-France 11492 1195 1214 Cable One 17488 1108 1300 Hathway IP Over Cable Interne 3549 1086 1447 Global Crossing 1785 1068 1453 AppliedTheory Corporation
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:8 8:131 12:2118 13:2 14:2 15:22 16:3 17:5 18:13 20:37 24:1083 32:197 38:481 40:92 41:691 43:1 44:2 47:12 50:1 52:3 55:3 56:3 57:48 58:558 59:586 60:457 61:995 62:1240 63:1961 64:3395 65:2357 66:3448 67:1213 68:769 69:2288 70:861 71:117 72:2033 73:7 74:1095 75:157 76:319 77:760 78:814 79:215 80:969 81:875 82:622 83:384 84:570 85:979 86:400 87:703 88:340 89:1315 90:39 91:1420 92:248 93:794 94:101 96:54 97:46 98:304 99:3 114:80 115:38 116:959 117:344 118:200 119:455 120:76 121:604 122:818 123:379 124:893 125:1232 128:360 129:204 130:135 131:410 132:70 133:9 134:187 135:33 136:223 137:94 138:145 139:96 140:499 141:103 142:405 143:338 144:395 145:51 146:383 147:156 148:516 149:201 150:129 151:182 152:146 153:143 154:10 155:278 156:172 157:288 158:166 159:294 160:273 161:120 162:214 163:152 164:517 165:461 166:334 167:333 168:628 169:139 170:451 171:32 172:10 188:1 189:505 190:2358 192:5812 193:4228 194:3284 195:2610 196:1021 198:3738 199:3317 200:5976 201:1689 202:8234 203:8089 204:3967 205:2150 206:2448 207:2765 208:3628 209:3398 210:2984 211:1241 212:1441 213:1620 214:178 215:50 216:4343 217:1216 218:403 219:515 220:1067 221:457 222:440
End of report
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