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Routing Table Report 00:00 GMT Fri 29 Aug, 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: 274555 Prefixes after maximum aggregation: 131136 Deaggregation factor: 2.09 Unique aggregates announced to Internet: 129876 Total ASes present in the Internet Routing Table: 29156 Prefixes per ASN: 9.42 Origin-only ASes present in the Internet Routing Table: 25263 Origin ASes announcing only one prefix: 12265 Transit ASes present in the Internet Routing Table: 3893 Transit-only ASes present in the Internet Routing Table: 98 Average AS path length visible in the Internet Routing Table: 4.2 Max AS path length visible: 28 Max AS path prepend of ASN (17957) 20 Prefixes from unregistered ASNs in the Routing Table: 580 Unregistered ASNs in the Routing Table: 220 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: 779 Number of addresses announced to Internet: 1914323190 Equivalent to 114 /8s, 26 /16s and 64 /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: 135939
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 64466 Total APNIC prefixes after maximum aggregation: 22700 APNIC Deaggregation factor: 2.84 Prefixes being announced from the APNIC address blocks: 61537 Unique aggregates announced from the APNIC address blocks: 25984 APNIC Region origin ASes present in the Internet Routing Table: 3361 APNIC Prefixes per ASN: 18.31 APNIC Region origin ASes announcing only one prefix: 897 APNIC Region transit ASes present in the Internet Routing Table: 537 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 24 Number of APNIC addresses announced to Internet: 375033504 Equivalent to 22 /8s, 90 /16s and 142 /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: 123884 Total ARIN prefixes after maximum aggregation: 66360 ARIN Deaggregation factor: 1.87 Prefixes being announced from the ARIN address blocks: 91819 Unique aggregates announced from the ARIN address blocks: 35121 ARIN Region origin ASes present in the Internet Routing Table: 12427 ARIN Prefixes per ASN: 7.39 ARIN Region origin ASes announcing only one prefix: 4774 ARIN Region transit ASes present in the Internet Routing Table: 1240 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 362648577 Equivalent to 21 /8s, 157 /16s and 148 /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: 58512 Total RIPE prefixes after maximum aggregation: 35075 RIPE Deaggregation factor: 1.67 Prefixes being announced from the RIPE address blocks: 54085 Unique aggregates announced from the RIPE address blocks: 35432 RIPE Region origin ASes present in the Internet Routing Table: 11811 RIPE Prefixes per ASN: 4.58 RIPE Region origin ASes announcing only one prefix: 6191 RIPE Region transit ASes present in the Internet Routing Table: 1832 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 28 Number of RIPE addresses announced to Internet: 370014784 Equivalent to 22 /8s, 13 /16s and 250 /24s Percentage of available RIPE address space announced: 84.8
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: 23060 Total LACNIC prefixes after maximum aggregation: 5269 LACNIC Deaggregation factor: 4.38 Prefixes being announced from the LACNIC address blocks: 21308 Unique aggregates announced from the LACNIC address blocks: 10802 LACNIC Region origin ASes present in the Internet Routing Table: 992 LACNIC Prefixes per ASN: 21.48 LACNIC Region origin ASes announcing only one prefix: 317 LACNIC Region transit ASes present in the Internet Routing Table: 167 Average LACNIC Region AS path length visible: 5.6 Max LACNIC Region AS path length visible: 28 Number of LACNIC addresses announced to Internet: 54734862 Equivalent to 3 /8s, 67 /16s and 48 /24s Percentage of available LACNIC address space announced: 54.4
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: 4054 Total AfriNIC prefixes after maximum aggregation: 1256 AfriNIC Deaggregation factor: 3.23 Prefixes being announced from the AfriNIC address blocks: 4400 Unique aggregates announced from the AfriNIC address blocks: 1886 AfriNIC Region origin ASes present in the Internet Routing Table: 256 AfriNIC Prefixes per ASN: 17.19 AfriNIC Region origin ASes announcing only one prefix: 86 AfriNIC Region transit ASes present in the Internet Routing Table: 52 Average AfriNIC Region AS path length visible: 4.3 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC addresses announced to Internet: 12646912 Equivalent to 0 /8s, 192 /16s and 250 /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 3301 3214 44 China Education and Research 4755 1716 578 91 Videsh Sanchar Nigam Ltd. Aut 17488 1379 89 104 Hathway IP Over Cable Interne 9583 1124 91 500 Sify Limited 4134 851 13619 341 CHINANET-BACKBONE 4766 841 6407 356 Korea Telecom (KIX) 23577 825 33 730 Korea Telecom (ATM-MPLS) 4780 717 353 61 Digital United Inc. 18101 695 167 33 Reliance Infocom Ltd Internet 9498 675 291 54 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 4068 3417 334 bellsouth.net, inc. 6298 2006 322 708 Cox Communicatons 1785 1650 710 156 AppliedTheory Corporation 2386 1561 692 900 AT&T Data Communications Serv 4323 1497 1073 374 Time Warner Telecom 20115 1455 1167 650 Charter Communications 3549 1452 539 213 Global Crossing 7018 1413 9873 977 AT&T WorldNet Services 1803 1275 8 1006 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 417 1776 372 TDC Tele Danmark 3215 396 2756 106 France Telecom Transpac 8452 358 188 11 TEDATA 3301 334 1444 305 TeliaNet Sweden 3320 322 7047 270 Deutsche Telekom AG 8866 316 77 21 Bulgarian Telecommunication C 5462 304 666 27 Telewest Broadband 8551 288 270 38 Bezeq International 1257 279 1131 204 SWIPnet Swedish IP Network 680 275 2047 265 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 1691 235 68 Telecom Argentina Stet-France 8151 1578 2590 225 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 415 92 12 Companhia de Telecomunicacoes 11172 408 118 72 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 507 64 35 LINKdotNET AS number 20858 402 34 3 EgyNet 3741 265 855 223 The Internet Solution 2018 229 214 135 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 33776 119 6 3 Starcomms Nigeria Limited 5713 118 539 70 Telkom SA Ltd 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 4068 3417 334 bellsouth.net, inc. 4538 3301 3214 44 China Education and Research 6298 2006 322 708 Cox Communicatons 4755 1716 578 91 Videsh Sanchar Nigam Ltd. Aut 7303 1691 235 68 Telecom Argentina Stet-France 1785 1650 710 156 AppliedTheory Corporation 8151 1578 2590 225 UniNet S.A. de C.V. 2386 1561 692 900 AT&T Data Communications Serv 4323 1497 1073 374 Time Warner Telecom 20115 1455 1167 650 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 3301 3257 China Education and Research 4755 1716 1625 Videsh Sanchar Nigam Ltd. Aut 7303 1691 1623 Telecom Argentina Stet-France 1785 1650 1494 AppliedTheory Corporation 8151 1578 1353 UniNet S.A. de C.V. 6298 2006 1298 Cox Communicatons 17488 1379 1275 Hathway IP Over Cable Interne 3549 1452 1239 Global Crossing 11492 1211 1189 Cable One 4323 1497 1123 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 /8:20 /9:9 /10:17 /11:46 /12:147 /13:297 /14:535 /15:1072 /16:10145 /17:4420 /18:7678 /19:16085 /20:19124 /21:18553 /22:23944 /23:24807 /24:143768 /25:865 /26:1104 /27:372 /28:735 /29:374 /30:225 /31:0 /32:213
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2708 4068 bellsouth.net, inc. 6298 1979 2006 Cox Communicatons 4538 1761 3301 China Education and Research 1803 1253 1275 SPRINT 2386 1238 1561 AT&T Data Communications Serv 7303 1195 1691 Telecom Argentina Stet-France 11492 1192 1211 Cable One 17488 1187 1379 Hathway IP Over Cable Interne 1785 1118 1650 AppliedTheory Corporation 3549 1089 1452 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:8 8:139 12:2155 13:2 14:1 15:22 16:3 17:5 18:13 20:37 24:1082 32:197 38:490 40:92 41:713 43:1 44:2 47:12 50:1 52:3 55:3 56:3 57:47 58:559 59:583 60:469 61:978 62:1291 63:1980 64:3414 65:2359 66:3475 67:1221 68:780 69:2293 70:868 71:132 72:2028 73:6 74:1127 75:171 76:325 77:771 78:800 79:239 80:978 81:875 82:594 83:381 84:572 85:983 86:402 87:730 88:339 89:1330 90:43 91:1447 92:256 93:854 94:111 96:62 97:64 98:317 99:6 114:100 115:47 116:1024 117:353 118:197 119:483 120:88 121:607 122:829 123:402 124:842 125:1238 128:355 129:205 130:134 131:415 132:70 133:9 134:188 135:34 136:223 137:94 138:141 139:102 140:507 141:104 142:405 143:345 144:412 145:51 146:384 147:157 148:514 149:290 150:129 151:179 152:148 153:143 154:10 155:279 156:175 157:300 158:163 159:298 160:272 161:135 162:257 163:158 164:516 165:470 166:381 167:332 168:628 169:142 170:455 171:33 172:10 173:33 188:1 189:605 190:2350 192:5810 193:4267 194:3360 195:2656 196:1026 198:3749 199:3320 200:5962 201:1697 202:8201 203:8115 204:3958 205:2165 206:2449 207:2774 208:3662 209:3405 210:2985 211:1247 212:1431 213:1652 214:176 215:50 216:4364 217:1224 218:404 219:521 220:1067 221:433 222:443
End of report
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