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Routing Table Report 00:00 GMT Thu 04 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: 286384 Prefixes after maximum aggregation: 130848 Deaggregation factor: 2.19 Unique aggregates announced to Internet: 129751 Total ASes present in the Internet Routing Table: 29076 Prefixes per ASN: 9.85 Origin-only ASes present in the Internet Routing Table: 25241 Origin ASes announcing only one prefix: 12213 Transit ASes present in the Internet Routing Table: 3835 Transit-only ASes present in the Internet Routing Table: 90 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 30 Max AS path prepend of ASN (13791) 17 Prefixes from unregistered ASNs in the Routing Table: 580 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: 773 Number of addresses announced to Internet: 1914944758 Equivalent to 114 /8s, 35 /16s and 188 /24s Percentage of available address space announced: 51.7 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: 73.4 Total number of prefixes smaller than registry allocations: 136160
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 64740 Total APNIC prefixes after maximum aggregation: 22651 APNIC Deaggregation factor: 2.86 Prefixes being announced from the APNIC address blocks: 61782 Unique aggregates announced from the APNIC address blocks: 25949 APNIC Region origin ASes present in the Internet Routing Table: 3367 APNIC Prefixes per ASN: 18.35 APNIC Region origin ASes announcing only one prefix: 910 APNIC Region transit ASes present in the Internet Routing Table: 530 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 20 Number of APNIC addresses announced to Internet: 375321760 Equivalent to 22 /8s, 94 /16s and 244 /24s Percentage of available APNIC address space announced: 79.9
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: 129252 Total ARIN prefixes after maximum aggregation: 66205 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 96919 Unique aggregates announced from the ARIN address blocks: 35108 ARIN Region origin ASes present in the Internet Routing Table: 12428 ARIN Prefixes per ASN: 7.80 ARIN Region origin ASes announcing only one prefix: 4757 ARIN Region transit ASes present in the Internet Routing Table: 1224 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 362678017 Equivalent to 21 /8s, 158 /16s and 7 /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: 63697 Total RIPE prefixes after maximum aggregation: 34968 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 59250 Unique aggregates announced from the RIPE address blocks: 35265 RIPE Region origin ASes present in the Internet Routing Table: 11733 RIPE Prefixes per ASN: 5.05 RIPE Region origin ASes announcing only one prefix: 6142 RIPE Region transit ASes present in the Internet Routing Table: 1804 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 370289472 Equivalent to 22 /8s, 18 /16s and 43 /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: 24047 Total LACNIC prefixes after maximum aggregation: 5298 LACNIC Deaggregation factor: 4.54 Prefixes being announced from the LACNIC address blocks: 22295 Unique aggregates announced from the LACNIC address blocks: 10854 LACNIC Region origin ASes present in the Internet Routing Table: 994 LACNIC Prefixes per ASN: 22.43 LACNIC Region origin ASes announcing only one prefix: 319 LACNIC Region transit ASes present in the Internet Routing Table: 171 Average LACNIC Region AS path length visible: 5.7 Max LACNIC Region AS path length visible: 26 Number of LACNIC addresses announced to Internet: 54897422 Equivalent to 3 /8s, 69 /16s and 171 /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: 4069 Total AfriNIC prefixes after maximum aggregation: 1255 AfriNIC Deaggregation factor: 3.24 Prefixes being announced from the AfriNIC address blocks: 4395 Unique aggregates announced from the AfriNIC address blocks: 2000 AfriNIC Region origin ASes present in the Internet Routing Table: 257 AfriNIC Prefixes per ASN: 17.10 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: 4.8 Max AfriNIC Region AS path length visible: 18 Number of AfriNIC addresses announced to Internet: 12677376 Equivalent to 0 /8s, 193 /16s and 113 /24s Percentage of available AfriNIC address space announced: 37.8
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 3306 3214 44 China Education and Research 4755 1721 579 93 Videsh Sanchar Nigam Ltd. Aut 17488 1366 90 103 Hathway IP Over Cable Interne 9583 1109 89 490 Sify Limited 4134 877 13627 342 CHINANET-BACKBONE 4766 843 6407 358 Korea Telecom (KIX) 23577 824 33 729 Korea Telecom (ATM-MPLS) 4780 718 353 61 Digital United Inc. 18101 714 167 29 Reliance Infocom Ltd Internet 9498 681 291 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 4418 3416 336 bellsouth.net, inc. 6298 1970 315 759 Cox Communicatons 1785 1648 710 154 AppliedTheory Corporation 19262 1577 3534 167 Verizon Global Networks 20115 1563 1259 701 Charter Communications 2386 1559 692 898 AT&T Data Communications Serv 4323 1500 1071 376 Time Warner Telecom 3549 1492 540 213 Global Crossing 7018 1442 9872 973 AT&T WorldNet Services 1803 1285 8 1014 SPRINT
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 3215 861 2756 106 France Telecom Transpac 3352 855 2044 43 Ibernet, Internet Access Netw 3320 797 7063 273 Deutsche Telekom AG 3269 725 3389 73 TELECOM ITALIA 3292 549 1776 374 TDC Tele Danmark 9121 518 1443 26 TTnet Autonomous System 3301 399 1444 305 TeliaNet Sweden 5462 374 666 26 Telewest Broadband 2856 368 2303 154 BTnet UK Regional network 8452 339 188 11 TEDATA
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 1724 239 67 Telecom Argentina Stet-France 8151 1657 2604 233 UniNet S.A. de C.V. 11830 667 299 9 Instituto Costarricense de El 22047 591 270 14 VTR PUNTO NET S.A. 16814 426 27 10 NSS, S.A. 6471 422 85 48 ENTEL CHILE S.A. 10620 419 103 63 TVCABLE BOGOTA 16735 414 92 11 Companhia de Telecomunicacoes 11172 408 118 71 Servicios Alestra S.A de C.V 28573 384 441 29 NET Servicos de Comunicao 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 514 65 35 LINKdotNET AS number 20858 402 34 3 EgyNet 3741 265 855 223 The Internet Solution 2018 233 214 138 Tertiary Education Network 6713 145 135 11 Itissalat Al-MAGHRIB 33783 137 10 13 EEPAD TISP TELECOM & INTERNET 5536 120 8 17 Internet Egypt Network 5713 118 555 68 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 4418 3416 336 bellsouth.net, inc. 4538 3306 3214 44 China Education and Research 6298 1970 315 759 Cox Communicatons 7303 1724 239 67 Telecom Argentina Stet-France 4755 1721 579 93 Videsh Sanchar Nigam Ltd. Aut 8151 1657 2604 233 UniNet S.A. de C.V. 1785 1648 710 154 AppliedTheory Corporation 19262 1577 3534 167 Verizon Global Networks 20115 1563 1259 701 Charter Communications 2386 1559 692 898 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4538 3306 3262 China Education and Research 7303 1724 1657 Telecom Argentina Stet-France 4755 1721 1628 Videsh Sanchar Nigam Ltd. Aut 1785 1648 1494 AppliedTheory Corporation 8151 1657 1424 UniNet S.A. de C.V. 19262 1577 1410 Verizon Global Networks 3549 1492 1279 Global Crossing 17488 1366 1263 Hathway IP Over Cable Interne 6298 1970 1211 Cox Communicatons 11492 1211 1189 Cable One
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 /15:1073 /16:10155 /17:4419 /18:7695 /19:28448 /20:19123 /21:18589 /22:23946 /23:24722 /24:143235 /25:875 /26:1112 /27:368 /28:742 /29:377 /30:225 /31:0 /32:210
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2849 4418 bellsouth.net, inc. 6298 1945 1970 Cox Communicatons 4538 1762 3306 China Education and Research 1803 1263 1285 SPRINT 2386 1236 1559 AT&T Data Communications Serv 7303 1224 1724 Telecom Argentina Stet-France 11492 1192 1211 Cable One 17488 1174 1366 Hathway IP Over Cable Interne 1785 1120 1648 AppliedTheory Corporation 3549 1095 1492 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:8 8:138 12:2161 13:2 14:1 15:22 16:3 17:5 18:13 20:37 24:1072 32:197 38:492 40:92 41:715 43:1 44:2 47:12 52:3 55:3 56:3 57:47 58:559 59:585 60:453 61:970 62:1300 63:1976 64:3391 65:2354 66:3484 67:1229 68:771 69:2301 70:845 71:132 72:2019 73:6 74:1129 75:172 76:290 77:782 78:796 79:249 80:974 81:855 82:587 83:382 84:580 85:972 86:399 87:726 88:338 89:1322 90:43 91:1447 92:253 93:863 94:119 96:64 97:66 98:321 99:7 114:93 115:40 116:1034 117:344 118:202 119:482 120:85 121:605 122:836 123:406 124:852 125:1245 128:356 129:204 130:134 131:410 132:70 133:9 134:178 135:34 136:223 137:94 138:140 139:101 140:501 141:102 142:407 143:289 144:362 145:51 146:382 147:156 148:515 149:293 150:128 151:181 152:148 153:143 154:10 155:284 156:175 157:298 158:163 159:300 160:272 161:137 162:255 163:155 164:516 165:500 166:381 167:333 168:629 169:144 170:455 171:33 172:10 173:33 188:1 189:606 190:2321 192:5816 193:4217 194:3321 195:2582 196:993 198:3736 199:3309 200:5966 201:1681 202:8193 203:8098 204:3943 205:2163 206:2431 207:2753 208:3677 209:3400 210:2984 211:1253 212:1440 213:1648 214:182 215:50 216:4328 217:1218 218:404 219:523 220:1069 221:426 222:445
End of report
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