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Routing Table Report 00:00 GMT Thu 31 Jul, 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: 270616 Prefixes after maximum aggregation: 130688 Deaggregation factor: 2.07 Unique aggregates announced to Internet: 128963 Total ASes present in the Internet Routing Table: 28862 Prefixes per ASN: 9.38 Origin-only ASes present in the Internet Routing Table: 25074 Origin ASes announcing only one prefix: 12158 Transit ASes present in the Internet Routing Table: 3788 Transit-only ASes present in the Internet Routing Table: 87 Average AS path length visible in the Internet Routing Table: 3.9 Max AS path length visible: 35 Max AS path prepend of ASN (35412) 22 Prefixes from unregistered ASNs in the Routing Table: 606 Unregistered ASNs in the Routing Table: 227 Number of 32-bit ASNs allocated by the RIRs: 53 Prefixes from 32-bit ASNs in the Routing Table: 8 Special use prefixes present in the Routing Table: 6 Prefixes being announced from unallocated address space: 807 Number of addresses announced to Internet: 1903485234 Equivalent to 113 /8s, 116 /16s and 225 /24s Percentage of available address space announced: 51.4 Percentage of allocated address space announced: 62.4 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 72.9 Total number of prefixes smaller than registry allocations: 133260
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 62569 Total APNIC prefixes after maximum aggregation: 22647 APNIC Deaggregation factor: 2.76 Prefixes being announced from the APNIC address blocks: 59642 Unique aggregates announced from the APNIC address blocks: 25757 APNIC Region origin ASes present in the Internet Routing Table: 3335 APNIC Prefixes per ASN: 17.88 APNIC Region origin ASes announcing only one prefix: 901 APNIC Region transit ASes present in the Internet Routing Table: 533 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 22 Number of APNIC addresses announced to Internet: 369895328 Equivalent to 22 /8s, 12 /16s and 39 /24s Percentage of available APNIC address space announced: 78.7
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: 122740 Total ARIN prefixes after maximum aggregation: 66466 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 91417 Unique aggregates announced from the ARIN address blocks: 35044 ARIN Region origin ASes present in the Internet Routing Table: 12336 ARIN Prefixes per ASN: 7.41 ARIN Region origin ASes announcing only one prefix: 4760 ARIN Region transit ASes present in the Internet Routing Table: 1189 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 356009217 Equivalent to 21 /8s, 56 /16s and 69 /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: 58069 Total RIPE prefixes after maximum aggregation: 34663 RIPE Deaggregation factor: 1.68 Prefixes being announced from the RIPE address blocks: 53384 Unique aggregates announced from the RIPE address blocks: 34915 RIPE Region origin ASes present in the Internet Routing Table: 11677 RIPE Prefixes per ASN: 4.57 RIPE Region origin ASes announcing only one prefix: 6112 RIPE Region transit ASes present in the Internet Routing Table: 1786 Average RIPE Region AS path length visible: 4.3 Max RIPE Region AS path length visible: 35 Number of RIPE addresses announced to Internet: 367440192 Equivalent to 21 /8s, 230 /16s and 177 /24s Percentage of available RIPE address space announced: 84.2
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: 22593 Total LACNIC prefixes after maximum aggregation: 5216 LACNIC Deaggregation factor: 4.33 Prefixes being announced from the LACNIC address blocks: 20817 Unique aggregates announced from the LACNIC address blocks: 10739 LACNIC Region origin ASes present in the Internet Routing Table: 972 LACNIC Prefixes per ASN: 21.42 LACNIC Region origin ASes announcing only one prefix: 309 LACNIC Region transit ASes present in the Internet Routing Table: 164 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 27 Number of LACNIC addresses announced to Internet: 54021130 Equivalent to 3 /8s, 56 /16s and 76 /24s Percentage of available LACNIC address space announced: 53.7
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: 4047 Total AfriNIC prefixes after maximum aggregation: 1216 AfriNIC Deaggregation factor: 3.33 Prefixes being announced from the AfriNIC address blocks: 4403 Unique aggregates announced from the AfriNIC address blocks: 1891 AfriNIC Region origin ASes present in the Internet Routing Table: 245 AfriNIC Prefixes per ASN: 17.97 AfriNIC Region origin ASes announcing only one prefix: 76 AfriNIC Region transit ASes present in the Internet Routing Table: 50 Average AfriNIC Region AS path length visible: 4.1 Max AfriNIC Region AS path length visible: 17 Number of AfriNIC addresses announced to Internet: 12503808 Equivalent to 0 /8s, 190 /16s and 203 /24s Percentage of available AfriNIC address space announced: 37.3
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 2099 3134 41 China Education and Research 4755 1686 386 88 Videsh Sanchar Nigam Ltd. Aut 17488 1254 86 95 Hathway IP Over Cable Interne 9583 1135 86 487 Sify Limited 4134 841 13603 337 CHINANET-BACKBONE 23577 834 34 736 Korea Telecom (ATM-MPLS) 4766 821 6390 348 Korea Telecom (KIX) 4780 716 353 64 Digital United Inc. 18101 711 167 33 Reliance Infocom Ltd Internet 9498 661 291 55 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 3207 3359 213 bellsouth.net, inc. 6298 1662 238 790 Cox Communicatons 4323 1490 1062 380 Time Warner Telecom 2386 1487 649 888 AT&T Data Communications Serv 3549 1441 539 213 Global Crossing 7018 1408 9926 980 AT&T WorldNet Services 1785 1347 478 102 AppliedTheory Corporation 1803 1243 7 986 SPRINT 11492 1210 149 27 Cable One 20115 1116 1082 570 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 1792 371 TDC Tele Danmark 766 395 419 37 RedIRIS Autonomous System 8452 347 188 11 TEDATA 3301 332 1460 303 TeliaNet Sweden 3320 322 7047 270 Deutsche Telekom AG 8866 316 77 21 Bulgarian Telecommunication C 5462 308 666 27 Telewest Broadband 3215 298 2756 106 France Telecom Transpac 8551 288 270 38 Bezeq International 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 1687 234 62 Telecom Argentina Stet-France 8151 1415 2590 224 UniNet S.A. de C.V. 11830 612 299 9 Instituto Costarricense de El 22047 565 270 14 VTR PUNTO NET S.A. 16814 426 27 10 NSS, S.A. 6471 414 85 48 ENTEL CHILE S.A. 11172 408 118 71 Servicios Alestra S.A de C.V 10620 405 106 58 TVCABLE BOGOTA 16735 398 92 13 Companhia de Telecomunicacoes 14117 375 23 9 Telefonica del Sur 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 478 62 19 LINKdotNET AS number 20858 398 34 3 EgyNet 3741 267 855 223 The Internet Solution 2018 212 213 131 Tertiary Education Network 6713 144 135 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 116 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 6389 3207 3359 213 bellsouth.net, inc. 4538 2099 3134 41 China Education and Research 7303 1687 234 62 Telecom Argentina Stet-France 4755 1686 386 88 Videsh Sanchar Nigam Ltd. Aut 6298 1662 238 790 Cox Communicatons 4323 1490 1062 380 Time Warner Telecom 2386 1487 649 888 AT&T Data Communications Serv 3549 1441 539 213 Global Crossing 8151 1415 2590 224 UniNet S.A. de C.V. 7018 1408 9926 980 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 2099 2058 China Education and Research 7303 1687 1625 Telecom Argentina Stet-France 4755 1686 1598 Videsh Sanchar Nigam Ltd. Aut 1785 1347 1245 AppliedTheory Corporation 3549 1441 1228 Global Crossing 8151 1415 1191 UniNet S.A. de C.V. 11492 1210 1183 Cable One 17488 1254 1159 Hathway IP Over Cable Interne 4323 1490 1110 Time Warner Telecom 18566 1045 1035 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 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/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 24.48.244.0/23 7843 Adelphia Corp. 24.48.246.0/24 7843 Adelphia Corp. 24.51.159.0/24 7843 Adelphia Corp. 24.54.23.0/24 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
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 /10:16 /11:46 /12:148 /13:298 /14:526 /15:1059 /16:10111 /17:4384 /18:7572 /19:15883 /20:18658 /21:18260 /22:23450 /23:24119 /24:142097 /25:914 /26:1160 /27:368 /28:717 /29:368 /30:215 /31:0 /32:219
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2038 3207 bellsouth.net, inc. 6298 1638 1662 Cox Communicatons 1803 1220 1243 SPRINT 11492 1192 1210 Cable One 7303 1191 1687 Telecom Argentina Stet-France 2386 1181 1487 AT&T Data Communications Serv 3549 1078 1441 Global Crossing 17488 1064 1254 Hathway IP Over Cable Interne 4755 1034 1686 Videsh Sanchar Nigam Ltd. Aut 18566 1026 1045 Covad Communications
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:8 8:128 12:2122 13:2 14:1 15:22 16:3 17:5 18:13 20:37 24:1094 32:198 38:468 40:92 41:687 43:1 44:2 47:12 50:2 52:3 55:3 56:3 57:46 58:558 59:536 60:453 61:1003 62:1229 63:1965 64:3515 65:2377 66:3555 67:1228 68:730 69:2271 70:799 71:117 72:1961 73:5 74:1087 75:156 76:313 77:761 78:760 79:212 80:946 81:848 82:615 83:382 84:567 85:1013 86:414 87:694 88:339 89:1320 90:14 91:1402 92:234 93:755 94:88 96:52 97:38 98:276 99:4 112:1 113:1 114:75 115:20 116:884 117:336 118:188 119:432 120:60 121:572 122:809 123:373 124:902 125:1182 128:360 129:201 130:172 131:410 132:66 133:9 134:187 135:33 136:223 137:95 138:146 139:100 140:497 141:98 142:405 143:324 144:392 145:51 146:380 147:155 148:519 149:199 150:125 151:181 152:146 153:143 154:10 155:251 156:177 157:290 158:187 159:239 160:274 161:137 162:216 163:155 164:517 165:466 166:334 167:331 168:625 169:139 170:452 171:32 172:10 188:1 189:363 190:2420 192:5808 193:4307 194:3272 195:2598 196:1034 198:3730 199:3299 200:5954 201:1617 202:8207 203:8064 204:3981 205:2140 206:2449 207:2769 208:3645 209:3578 210:2970 211:1234 212:1443 213:1614 214:162 215:49 216:4515 217:1241 218:394 219:508 220:1064 221:454 222:375
End of report
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