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Routing Table Report 00:00 GMT Sat 27 Sep, 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: 275350 Prefixes after maximum aggregation: 131644 Deaggregation factor: 2.09 Unique aggregates announced to Internet: 131164 Total ASes present in the Internet Routing Table: 29406 Prefixes per ASN: 9.36 Origin-only ASes present in the Internet Routing Table: 25559 Origin ASes announcing only one prefix: 12443 Transit ASes present in the Internet Routing Table: 3847 Transit-only ASes present in the Internet Routing Table: 90 Average AS path length visible in the Internet Routing Table: 3.4 Max AS path length visible: 26 Max AS path prepend of ASN (12026) 22 Prefixes from unregistered ASNs in the Routing Table: 563 Unregistered ASNs in the Routing Table: 217 Number of 32-bit ASNs allocated by the RIRs: 60 Prefixes from 32-bit ASNs in the Routing Table: 9 Special use prefixes present in the Routing Table: 6 Prefixes being announced from unallocated address space: 773 Number of addresses announced to Internet: 1925471864 Equivalent to 114 /8s, 196 /16s and 94 /24s Percentage of available address space announced: 51.9 Percentage of allocated address space announced: 63.1 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 73.6 Total number of prefixes smaller than registry allocations: 135930
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 65152 Total APNIC prefixes after maximum aggregation: 22913 APNIC Deaggregation factor: 2.84 Prefixes being announced from the APNIC address blocks: 62152 Unique aggregates announced from the APNIC address blocks: 26360 APNIC Region origin ASes present in the Internet Routing Table: 3398 APNIC Prefixes per ASN: 18.29 APNIC Region origin ASes announcing only one prefix: 919 APNIC Region transit ASes present in the Internet Routing Table: 530 Average APNIC Region AS path length visible: 3.7 Max APNIC Region AS path length visible: 25 Number of APNIC addresses announced to Internet: 378096736 Equivalent to 22 /8s, 137 /16s and 76 /24s Percentage of available APNIC address space announced: 80.5
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: 122823 Total ARIN prefixes after maximum aggregation: 66197 ARIN Deaggregation factor: 1.86 Prefixes being announced from the ARIN address blocks: 90996 Unique aggregates announced from the ARIN address blocks: 35319 ARIN Region origin ASes present in the Internet Routing Table: 12501 ARIN Prefixes per ASN: 7.28 ARIN Region origin ASes announcing only one prefix: 4826 ARIN Region transit ASes present in the Internet Routing Table: 1227 Average ARIN Region AS path length visible: 3.2 Max ARIN Region AS path length visible: 25 Number of ARIN addresses announced to Internet: 364842369 Equivalent to 21 /8s, 191 /16s and 13 /24s Percentage of available ARIN address space announced: 75.0
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: 59381 Total RIPE prefixes after maximum aggregation: 35461 RIPE Deaggregation factor: 1.67 Prefixes being announced from the RIPE address blocks: 55005 Unique aggregates announced from the RIPE address blocks: 35852 RIPE Region origin ASes present in the Internet Routing Table: 11956 RIPE Prefixes per ASN: 4.60 RIPE Region origin ASes announcing only one prefix: 6291 RIPE Region transit ASes present in the Internet Routing Table: 1811 Average RIPE Region AS path length visible: 3.4 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 373445762 Equivalent to 22 /8s, 66 /16s and 84 /24s Percentage of available RIPE address space announced: 85.6
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, 47104-49151 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: 23331 Total LACNIC prefixes after maximum aggregation: 5358 LACNIC Deaggregation factor: 4.35 Prefixes being announced from the LACNIC address blocks: 21452 Unique aggregates announced from the LACNIC address blocks: 11039 LACNIC Region origin ASes present in the Internet Routing Table: 1001 LACNIC Prefixes per ASN: 21.43 LACNIC Region origin ASes announcing only one prefix: 320 LACNIC Region transit ASes present in the Internet Routing Table: 173 Average LACNIC Region AS path length visible: 3.7 Max LACNIC Region AS path length visible: 17 Number of LACNIC addresses announced to Internet: 56803342 Equivalent to 3 /8s, 98 /16s and 192 /24s Percentage of available LACNIC address space announced: 56.4
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: 4102 Total AfriNIC prefixes after maximum aggregation: 1268 AfriNIC Deaggregation factor: 3.24 Prefixes being announced from the AfriNIC address blocks: 4404 Unique aggregates announced from the AfriNIC address blocks: 2033 AfriNIC Region origin ASes present in the Internet Routing Table: 263 AfriNIC Prefixes per ASN: 16.75 AfriNIC Region origin ASes announcing only one prefix: 87 AfriNIC Region transit ASes present in the Internet Routing Table: 52 Average AfriNIC Region AS path length visible: 3.5 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 12738560 Equivalent to 0 /8s, 194 /16s and 96 /24s Percentage of available AfriNIC address space announced: 38.0
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 3339 3214 44 China Education and Research 4755 1643 578 92 Videsh Sanchar Nigam Ltd. Aut 17488 1392 94 101 Hathway IP Over Cable Interne 9583 1105 86 476 Sify Limited 4134 854 13665 344 CHINANET-BACKBONE 4766 846 6407 360 Korea Telecom (KIX) 23577 815 33 721 Korea Telecom (ATM-MPLS) 18101 776 161 62 Reliance Infocom Ltd Internet 4780 721 353 61 Digital United Inc. 9498 682 295 58 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 4293 3415 337 bellsouth.net, inc. 6298 1997 318 728 Cox Communicatons 20115 1683 1422 713 Charter Communications 1785 1658 712 152 AppliedTheory Corporation 2386 1552 677 903 AT&T Data Communications Serv 4323 1521 1067 369 Time Warner Telecom 7018 1404 9881 970 AT&T WorldNet Services 1803 1318 9 1041 SPRINT 11492 1212 152 11 Cable One 6478 1188 241 189 AT&T Worldnet Services
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 427 1777 379 TDC Tele Danmark 3301 330 1428 301 TeliaNet Sweden 30890 330 87 175 SC Kappa Invexim SRL 3215 328 2756 107 France Telecom Transpac 3320 324 7063 272 Deutsche Telekom AG 5462 322 794 26 Telewest Broadband 8866 321 79 22 Bulgarian Telecommunication C 8452 316 188 11 TEDATA 35228 303 88 5 Avatar Broadband Limited 8551 287 270 37 Bezeq International
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 1721 241 70 Telecom Argentina Stet-France 8151 1385 2812 216 UniNet S.A. de C.V. 11830 668 299 9 Instituto Costarricense de El 22047 564 270 14 VTR PUNTO NET S.A. 10620 435 106 63 TVCABLE BOGOTA 16814 426 27 10 NSS, S.A. 16735 421 92 10 Companhia de Telecomunicacoes 6471 420 85 48 ENTEL CHILE S.A. 11172 406 102 71 Servicios Alestra S.A de C.V 7738 373 730 27 Telecomunicacoes da Bahia S.A
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 543 71 41 LINKdotNET AS number 20858 401 34 3 EgyNet 3741 263 855 222 The Internet Solution 2018 232 215 139 Tertiary Education Network 6713 144 135 11 Itissalat Al-MAGHRIB 33783 123 10 9 EEPAD TISP TELECOM & INTERNET 5536 120 8 17 Internet Egypt Network 5713 119 555 69 Telkom SA Ltd 33776 116 6 3 Starcomms Nigeria Limited 29571 108 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 6389 4293 3415 337 bellsouth.net, inc. 4538 3339 3214 44 China Education and Research 6298 1997 318 728 Cox Communicatons 7303 1721 241 70 Telecom Argentina Stet-France 20115 1683 1422 713 Charter Communications 1785 1658 712 152 AppliedTheory Corporation 4755 1643 578 92 Videsh Sanchar Nigam Ltd. Aut 2386 1552 677 903 AT&T Data Communications Serv 4323 1521 1067 369 Time Warner Telecom 7018 1404 9881 970 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4538 3339 3295 China Education and Research 7303 1721 1651 Telecom Argentina Stet-France 4755 1643 1551 Videsh Sanchar Nigam Ltd. Aut 1785 1658 1506 AppliedTheory Corporation 17488 1392 1291 Hathway IP Over Cable Interne 6298 1997 1269 Cox Communicatons 11492 1212 1201 Cable One 8151 1385 1169 UniNet S.A. de C.V. 4323 1521 1152 Time Warner Telecom 18566 1052 1042 Covad Communications
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 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 32326 UNALLOCATED 12.40.49.0/24 3549 Global Crossing
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 24.75.116.0/22 10796 ServiceCo 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. 63.143.115.0/24 701 UUNET Technologies, Inc.
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 /12:148 /13:299 /14:537 /15:1072 /16:10195 /17:4438 /18:7709 /19:16297 /20:19433 /21:18782 /22:24237 /23:24958 /24:143812 /25:629 /26:715 /27:381 /28:771 /29:390 /30:234 /31:0 /32:222
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2845 4293 bellsouth.net, inc. 6298 1971 1997 Cox Communicatons 4538 1768 3339 China Education and Research 1803 1295 1318 SPRINT 7303 1248 1721 Telecom Argentina Stet-France 2386 1232 1552 AT&T Data Communications Serv 17488 1199 1392 Hathway IP Over Cable Interne 11492 1188 1212 Cable One 1785 1126 1658 AppliedTheory Corporation 6478 1080 1188 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:8 8:141 12:2179 13:2 15:22 16:3 17:5 18:13 20:35 24:1080 32:197 38:501 40:92 41:683 43:1 44:2 47:8 52:3 55:3 56:3 57:49 58:555 59:595 60:452 61:988 62:1307 63:1968 64:3229 65:2375 66:3513 67:1249 68:790 69:2327 70:855 71:168 72:2054 73:7 74:1201 75:161 76:276 77:796 78:840 79:259 80:946 81:862 82:606 83:380 84:578 85:1003 86:398 87:714 88:338 89:1366 90:21 91:1548 92:267 93:896 94:178 96:74 97:82 98:333 99:8 113:1 114:110 115:87 116:1013 117:377 118:233 119:499 120:96 121:622 122:853 123:442 124:863 125:1245 128:358 129:204 130:134 131:413 132:70 133:9 134:178 135:32 136:224 137:96 138:142 139:89 140:506 141:103 142:408 143:289 144:327 145:51 146:370 147:159 148:518 149:297 150:128 151:181 152:150 153:143 154:10 155:281 156:173 157:301 158:168 159:306 160:267 161:138 162:254 163:154 164:516 165:507 166:381 167:332 168:633 169:143 170:477 171:33 172:10 173:34 186:1 187:16 188:1 189:366 190:2494 192:5830 193:4251 194:3363 195:2654 196:997 198:3736 199:3322 200:5886 201:1593 202:8271 203:8102 204:3943 205:2156 206:2358 207:2696 208:3649 209:3407 210:2992 211:1248 212:1477 213:1653 214:175 215:50 216:4331 217:1229 218:408 219:525 220:1069 221:417 222:415
End of report
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