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Routing Table Report 00:00 GMT Sun 28 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: 275385 Prefixes after maximum aggregation: 131373 Deaggregation factor: 2.10 Unique aggregates announced to Internet: 130562 Total ASes present in the Internet Routing Table: 29400 Prefixes per ASN: 9.37 Origin-only ASes present in the Internet Routing Table: 25462 Origin ASes announcing only one prefix: 12445 Transit ASes present in the Internet Routing Table: 3938 Transit-only ASes present in the Internet Routing Table: 91 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 26 Max AS path prepend of ASN (12026) 22 Prefixes from unregistered ASNs in the Routing Table: 581 Unregistered ASNs in the Routing Table: 225 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: 767 Number of addresses announced to Internet: 1925724728 Equivalent to 114 /8s, 200 /16s and 58 /24s Percentage of available address space announced: 52.0 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: 73.7 Total number of prefixes smaller than registry allocations: 135989
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 65129 Total APNIC prefixes after maximum aggregation: 22656 APNIC Deaggregation factor: 2.87 Prefixes being announced from the APNIC address blocks: 62122 Unique aggregates announced from the APNIC address blocks: 25678 APNIC Region origin ASes present in the Internet Routing Table: 3396 APNIC Prefixes per ASN: 18.29 APNIC Region origin ASes announcing only one prefix: 918 APNIC Region transit ASes present in the Internet Routing Table: 535 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 25 Number of APNIC addresses announced to Internet: 378246944 Equivalent to 22 /8s, 139 /16s and 151 /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: 122779 Total ARIN prefixes after maximum aggregation: 66178 ARIN Deaggregation factor: 1.86 Prefixes being announced from the ARIN address blocks: 90945 Unique aggregates announced from the ARIN address blocks: 35314 ARIN Region origin ASes present in the Internet Routing Table: 12485 ARIN Prefixes per ASN: 7.28 ARIN Region origin ASes announcing only one prefix: 4815 ARIN Region transit ASes present in the Internet Routing Table: 1233 Average ARIN Region AS path length visible: 3.6 Max ARIN Region AS path length visible: 25 Number of ARIN addresses announced to Internet: 364848769 Equivalent to 21 /8s, 191 /16s and 38 /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: 59386 Total RIPE prefixes after maximum aggregation: 35466 RIPE Deaggregation factor: 1.67 Prefixes being announced from the RIPE address blocks: 55025 Unique aggregates announced from the RIPE address blocks: 35907 RIPE Region origin ASes present in the Internet Routing Table: 11966 RIPE Prefixes per ASN: 4.60 RIPE Region origin ASes announcing only one prefix: 6301 RIPE Region transit ASes present in the Internet Routing Table: 1873 Average RIPE Region AS path length visible: 4.1 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 373473410 Equivalent to 22 /8s, 66 /16s and 192 /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: 23379 Total LACNIC prefixes after maximum aggregation: 5344 LACNIC Deaggregation factor: 4.37 Prefixes being announced from the LACNIC address blocks: 21504 Unique aggregates announced from the LACNIC address blocks: 11046 LACNIC Region origin ASes present in the Internet Routing Table: 1005 LACNIC Prefixes per ASN: 21.40 LACNIC Region origin ASes announcing only one prefix: 326 LACNIC Region transit ASes present in the Internet Routing Table: 174 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 25 Number of LACNIC addresses announced to Internet: 56812046 Equivalent to 3 /8s, 98 /16s and 226 /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: 4133 Total AfriNIC prefixes after maximum aggregation: 1284 AfriNIC Deaggregation factor: 3.22 Prefixes being announced from the AfriNIC address blocks: 4438 Unique aggregates announced from the AfriNIC address blocks: 2058 AfriNIC Region origin ASes present in the Internet Routing Table: 262 AfriNIC Prefixes per ASN: 16.94 AfriNIC Region origin ASes announcing only one prefix: 85 AfriNIC Region transit ASes present in the Internet Routing Table: 53 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 12738048 Equivalent to 0 /8s, 194 /16s and 94 /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 3347 3214 44 China Education and Research 4755 1640 578 91 Videsh Sanchar Nigam Ltd. Aut 17488 1393 94 100 Hathway IP Over Cable Interne 9583 1111 121 227 Sify Limited 4134 854 13665 344 CHINANET-BACKBONE 4766 846 6407 360 Korea Telecom (KIX) 23577 815 33 721 Korea Telecom (ATM-MPLS) 18101 781 161 63 Reliance Infocom Ltd Internet 4780 721 353 61 Digital United Inc. 9498 678 295 57 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 4290 3384 335 bellsouth.net, inc. 6298 1997 318 728 Cox Communicatons 20115 1682 1421 712 Charter Communications 1785 1658 712 152 AppliedTheory Corporation 2386 1551 677 902 AT&T Data Communications Serv 4323 1521 1065 368 Time Warner Telecom 7018 1398 9881 964 AT&T WorldNet Services 1803 1318 9 1041 SPRINT 11492 1212 152 11 Cable One 6478 1190 241 190 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 324 794 27 Telewest Broadband 8866 321 79 22 Bulgarian Telecommunication C 8452 316 188 11 TEDATA 35228 303 88 5 Avatar Broadband Limited 8551 286 270 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 1728 242 73 Telecom Argentina Stet-France 8151 1410 2847 222 UniNet S.A. de C.V. 11830 668 299 9 Instituto Costarricense de El 22047 564 270 14 VTR PUNTO NET S.A. 10620 456 113 65 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 412 118 72 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 263 853 222 The Internet Solution 2018 232 215 139 Tertiary Education Network 6713 144 135 11 Itissalat Al-MAGHRIB 33783 137 10 13 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 4290 3384 335 bellsouth.net, inc. 4538 3347 3214 44 China Education and Research 6298 1997 318 728 Cox Communicatons 7303 1728 242 73 Telecom Argentina Stet-France 20115 1682 1421 712 Charter Communications 1785 1658 712 152 AppliedTheory Corporation 4755 1640 578 91 Videsh Sanchar Nigam Ltd. Aut 2386 1551 677 902 AT&T Data Communications Serv 4323 1521 1065 368 Time Warner Telecom 8151 1410 2847 222 UniNet S.A. de C.V.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4538 3347 3303 China Education and Research 7303 1728 1655 Telecom Argentina Stet-France 4755 1640 1549 Videsh Sanchar Nigam Ltd. Aut 1785 1658 1506 AppliedTheory Corporation 17488 1393 1293 Hathway IP Over Cable Interne 6298 1997 1269 Cox Communicatons 11492 1212 1201 Cable One 8151 1410 1188 UniNet S.A. de C.V. 4323 1521 1153 Time Warner Telecom 18566 1053 1043 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 /15:1074 /16:10197 /17:4443 /18:7709 /19:16296 /20:19432 /21:18791 /22:24249 /23:24963 /24:143819 /25:629 /26:711 /27:381 /28:771 /29:390 /30:233 /31:0 /32:222
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2844 4290 bellsouth.net, inc. 6298 1971 1997 Cox Communicatons 4538 1772 3347 China Education and Research 1803 1295 1318 SPRINT 7303 1255 1728 Telecom Argentina Stet-France 2386 1232 1551 AT&T Data Communications Serv 17488 1200 1393 Hathway IP Over Cable Interne 11492 1188 1212 Cable One 1785 1126 1658 AppliedTheory Corporation 6478 1082 1190 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 12:2178 13:2 15:22 16:3 17:5 18:13 20:35 24:1080 32:197 38:500 40:92 41:705 43:1 44:2 47:12 52:3 55:3 56:3 57:49 58:553 59:595 60:452 61:992 62:1306 63:1966 64:3235 65:2371 66:3503 67:1249 68:790 69:2318 70:855 71:168 72:2053 73:7 74:1205 75:161 76:276 77:796 78:840 79:250 80:948 81:865 82:614 83:382 84:583 85:1004 86:398 87:729 88:338 89:1365 90:21 91:1550 92:264 93:894 94:178 96:74 97:83 98:333 99:8 113:1 114:105 115:92 116:1020 117:376 118:237 119:499 120:96 121:618 122:854 123:449 124:857 125:1241 128:357 129:204 130:134 131:416 132:70 133:9 134:176 135:32 136:223 137:96 138:142 139:89 140:506 141:103 142:408 143:293 144:327 145:51 146:370 147:159 148:520 149:297 150:128 151:181 152:151 153:143 154:10 155:281 156:173 157:302 158:168 159:306 160:275 161:138 162:256 163:154 164:516 165:505 166:381 167:333 168:632 169:143 170:476 171:33 172:10 173:34 186:1 187:16 189:370 190:2502 192:5826 193:4248 194:3363 195:2647 196:998 198:3731 199:3320 200:5901 201:1593 202:8263 203:8071 204:3940 205:2151 206:2358 207:2693 208:3646 209:3405 210:2995 211:1252 212:1481 213:1654 214:176 215:50 216:4321 217:1229 218:408 219:525 220:1070 221:418 222:415
End of report
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