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Routing Table Report 00:00 GMT Mon 01 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: 274261 Prefixes after maximum aggregation: 130986 Deaggregation factor: 2.09 Unique aggregates announced to Internet: 129938 Total ASes present in the Internet Routing Table: 29132 Prefixes per ASN: 9.41 Origin-only ASes present in the Internet Routing Table: 25311 Origin ASes announcing only one prefix: 12265 Transit ASes present in the Internet Routing Table: 3821 Transit-only ASes present in the Internet Routing Table: 87 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 30 Max AS path prepend of ASN (13791) 17 Prefixes from unregistered ASNs in the Routing Table: 608 Unregistered ASNs in the Routing Table: 222 Number of 32-bit ASNs allocated by the RIRs: 59 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: 770 Number of addresses announced to Internet: 1914332918 Equivalent to 114 /8s, 26 /16s and 102 /24s Percentage of available address space announced: 51.6 Percentage of allocated address space announced: 62.7 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 73.3 Total number of prefixes smaller than registry allocations: 135783
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 64412 Total APNIC prefixes after maximum aggregation: 22637 APNIC Deaggregation factor: 2.85 Prefixes being announced from the APNIC address blocks: 61459 Unique aggregates announced from the APNIC address blocks: 25897 APNIC Region origin ASes present in the Internet Routing Table: 3354 APNIC Prefixes per ASN: 18.32 APNIC Region origin ASes announcing only one prefix: 900 APNIC Region transit ASes present in the Internet Routing Table: 529 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 375047072 Equivalent to 22 /8s, 90 /16s and 195 /24s Percentage of available APNIC address space announced: 79.8
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: 123855 Total ARIN prefixes after maximum aggregation: 66263 ARIN Deaggregation factor: 1.87 Prefixes being announced from the ARIN address blocks: 91760 Unique aggregates announced from the ARIN address blocks: 35131 ARIN Region origin ASes present in the Internet Routing Table: 12422 ARIN Prefixes per ASN: 7.39 ARIN Region origin ASes announcing only one prefix: 4769 ARIN Region transit ASes present in the Internet Routing Table: 1208 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 362551297 Equivalent to 21 /8s, 156 /16s and 24 /24s Percentage of available ARIN address space announced: 74.5
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: 58317 Total RIPE prefixes after maximum aggregation: 35085 RIPE Deaggregation factor: 1.66 Prefixes being announced from the RIPE address blocks: 53935 Unique aggregates announced from the RIPE address blocks: 35453 RIPE Region origin ASes present in the Internet Routing Table: 11809 RIPE Prefixes per ASN: 4.57 RIPE Region origin ASes announcing only one prefix: 6184 RIPE Region transit ASes present in the Internet Routing Table: 1814 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 370277184 Equivalent to 22 /8s, 17 /16s and 251 /24s Percentage of available RIPE address space announced: 84.9
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: 23033 Total LACNIC prefixes after maximum aggregation: 5280 LACNIC Deaggregation factor: 4.36 Prefixes being announced from the LACNIC address blocks: 21281 Unique aggregates announced from the LACNIC address blocks: 10816 LACNIC Region origin ASes present in the Internet Routing Table: 995 LACNIC Prefixes per ASN: 21.39 LACNIC Region origin ASes announcing only one prefix: 323 LACNIC Region transit ASes present in the Internet Routing Table: 167 Average LACNIC Region AS path length visible: 5.7 Max LACNIC Region AS path length visible: 26 Number of LACNIC addresses announced to Internet: 54893326 Equivalent to 3 /8s, 69 /16s and 155 /24s Percentage of available LACNIC address space announced: 54.5
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: 4037 Total AfriNIC prefixes after maximum aggregation: 1248 AfriNIC Deaggregation factor: 3.23 Prefixes being announced from the AfriNIC address blocks: 4351 Unique aggregates announced from the AfriNIC address blocks: 1931 AfriNIC Region origin ASes present in the Internet Routing Table: 256 AfriNIC Prefixes per ASN: 17.00 AfriNIC Region origin ASes announcing only one prefix: 89 AfriNIC Region transit ASes present in the Internet Routing Table: 51 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 12650240 Equivalent to 0 /8s, 193 /16s and 7 /24s Percentage of available AfriNIC address space announced: 37.7
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 3303 3214 44 China Education and Research 4755 1719 579 93 Videsh Sanchar Nigam Ltd. Aut 17488 1362 89 103 Hathway IP Over Cable Interne 9583 1112 89 493 Sify Limited 4134 851 13619 341 CHINANET-BACKBONE 4766 842 6407 358 Korea Telecom (KIX) 23577 824 33 729 Korea Telecom (ATM-MPLS) 4780 718 353 61 Digital United Inc. 18101 690 167 29 Reliance Infocom Ltd Internet 9498 675 291 53 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 4299 3416 343 bellsouth.net, inc. 6298 2013 323 717 Cox Communicatons 1785 1650 710 156 AppliedTheory Corporation 2386 1558 692 900 AT&T Data Communications Serv 4323 1498 1071 373 Time Warner Telecom 20115 1478 1194 670 Charter Communications 3549 1459 539 213 Global Crossing 7018 1410 9873 975 AT&T WorldNet Services 1803 1277 8 1008 SPRINT 11492 1211 151 22 Cable One
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 418 1776 373 TDC Tele Danmark 3215 396 2756 106 France Telecom Transpac 3301 334 1444 305 TeliaNet Sweden 8452 330 188 11 TEDATA 3320 323 7047 271 Deutsche Telekom AG 8866 317 77 21 Bulgarian Telecommunication C 8551 287 270 38 Bezeq International 1257 279 1131 204 SWIPnet Swedish IP Network 680 275 2047 265 DFN-IP service G-WiN 5462 268 666 27 Telewest Broadband
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 1697 235 66 Telecom Argentina Stet-France 8151 1591 2608 228 UniNet S.A. de C.V. 11830 664 299 9 Instituto Costarricense de El 22047 564 270 14 VTR PUNTO NET S.A. 16814 426 27 10 NSS, S.A. 6471 421 85 48 ENTEL CHILE S.A. 10620 417 102 66 TVCABLE BOGOTA 16735 413 92 11 Companhia de Telecomunicacoes 11172 407 118 71 Servicios Alestra S.A de C.V 14117 345 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 509 64 35 LINKdotNET AS number 20858 402 34 3 EgyNet 3741 265 855 223 The Internet Solution 2018 230 214 135 Tertiary Education Network 6713 144 135 11 Itissalat Al-MAGHRIB 33783 136 10 13 EEPAD TISP TELECOM & INTERNET 5536 120 8 17 Internet Egypt Network 5713 118 539 70 Telkom SA Ltd 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 4299 3416 343 bellsouth.net, inc. 4538 3303 3214 44 China Education and Research 6298 2013 323 717 Cox Communicatons 4755 1719 579 93 Videsh Sanchar Nigam Ltd. Aut 7303 1697 235 66 Telecom Argentina Stet-France 1785 1650 710 156 AppliedTheory Corporation 8151 1591 2608 228 UniNet S.A. de C.V. 2386 1558 692 900 AT&T Data Communications Serv 4323 1498 1071 373 Time Warner Telecom 20115 1478 1194 670 Charter Communications
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4538 3303 3259 China Education and Research 7303 1697 1631 Telecom Argentina Stet-France 4755 1719 1626 Videsh Sanchar Nigam Ltd. Aut 1785 1650 1494 AppliedTheory Corporation 8151 1591 1363 UniNet S.A. de C.V. 6298 2013 1296 Cox Communicatons 17488 1362 1259 Hathway IP Over Cable Interne 3549 1459 1246 Global Crossing 11492 1211 1189 Cable One 4323 1498 1125 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 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 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 24.75.160.0/19 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. 63.143.251.0/24 22555 Universal Talkware Corporatio
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 /13:297 /14:535 /15:1071 /16:10145 /17:4419 /18:7671 /19:16078 /20:19099 /21:18538 /22:23922 /23:24768 /24:143605 /25:860 /26:1097 /27:370 /28:737 /29:374 /30:224 /31:0 /32:213
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2856 4299 bellsouth.net, inc. 6298 1986 2013 Cox Communicatons 4538 1761 3303 China Education and Research 1803 1255 1277 SPRINT 2386 1235 1558 AT&T Data Communications Serv 7303 1201 1697 Telecom Argentina Stet-France 11492 1192 1211 Cable One 17488 1170 1362 Hathway IP Over Cable Interne 1785 1119 1650 AppliedTheory Corporation 3549 1094 1459 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:8 8:137 12:2155 13:2 14:1 15:22 16:3 17:5 18:13 20:37 24:1082 32:197 38:491 40:92 41:696 43:1 44:2 47:12 52:3 55:3 56:3 57:47 58:559 59:582 60:452 61:975 62:1292 63:1978 64:3415 65:2360 66:3482 67:1223 68:780 69:2297 70:871 71:132 72:2020 73:6 74:1140 75:171 76:325 77:783 78:731 79:243 80:977 81:855 82:583 83:382 84:577 85:982 86:401 87:729 88:340 89:1319 90:43 91:1443 92:253 93:858 94:116 96:62 97:65 98:320 99:7 114:91 115:33 116:1024 117:356 118:206 119:480 120:85 121:606 122:828 123:403 124:837 125:1238 128:354 129:205 130:134 131:412 132:70 133:9 134:188 135:34 136:223 137:93 138:141 139:101 140:507 141:103 142:407 143:312 144:409 145:51 146:384 147:157 148:513 149:292 150:128 151:181 152:147 153:143 154:10 155:281 156:174 157:300 158:163 159:299 160:274 161:136 162:257 163:158 164:516 165:495 166:381 167:446 168:628 169:144 170:456 171:33 172:10 173:33 188:1 189:593 190:2351 192:5811 193:4263 194:3354 195:2650 196:1026 198:3741 199:3309 200:5963 201:1680 202:8198 203:8098 204:3948 205:2163 206:2433 207:2765 208:3665 209:3414 210:2986 211:1252 212:1423 213:1646 214:175 215:50 216:4349 217:1217 218:404 219:521 220:1063 221:428 222:445
End of report
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