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Routing Table Report 00:00 GMT Wed 30 Apr, 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: 261930 Prefixes after maximum aggregation: 128341 Deaggregation factor: 2.04 Unique aggregates announced to Internet: 123503 Total ASes present in the Internet Routing Table: 28126 Prefixes per ASN: 9.31 Origin-only ASes present in the Internet Routing Table: 24421 Origin ASes announcing only one prefix: 11413 Transit ASes present in the Internet Routing Table: 3705 Transit-only ASes present in the Internet Routing Table: 83 Average AS path length visible in the Internet Routing Table: 5.1 Max AS path length visible: 27 Max AS path prepend of ASN (29523) 20 Prefixes from unregistered ASNs in the Routing Table: 25354 Unregistered ASNs in the Routing Table: 1899 Number of 32-bit ASNs allocated by the RIRs: 46 Prefixes from 32-bit ASNs in the Routing Table: 11 Special use prefixes present in the Routing Table: 4 Prefixes being announced from unallocated address space: 792 Number of addresses announced to Internet: 1882642539 Equivalent to 112 /8s, 54 /16s and 216 /24s Percentage of available address space announced: 50.8 Percentage of allocated address space announced: 62.4 Percentage of available address space allocated: 81.4 Percentage of address space in use by end-sites: 71.6 Total number of prefixes smaller than registry allocations: 127274
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 44989 Total APNIC prefixes after maximum aggregation: 13478 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 57235 Unique aggregates announced from the APNIC address blocks: 23534 APNIC Region origin ASes present in the Internet Routing Table: 1939 APNIC Prefixes per ASN: 29.52 APNIC Region origin ASes announcing only one prefix: 557 APNIC Region transit ASes present in the Internet Routing Table: 363 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 346666848 Equivalent to 20 /8s, 169 /16s and 183 /24s Percentage of available APNIC address space announced: 79.5
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, 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: 110868 Total ARIN prefixes after maximum aggregation: 60384 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 89302 Unique aggregates announced from the ARIN address blocks: 34423 ARIN Region origin ASes present in the Internet Routing Table: 11807 ARIN Prefixes per ASN: 7.56 ARIN Region origin ASes announcing only one prefix: 4622 ARIN Region transit ASes present in the Internet Routing Table: 1083 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 359814145 Equivalent to 21 /8s, 114 /16s and 84 /24s Percentage of available ARIN address space announced: 74.0
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: 55467 Total RIPE prefixes after maximum aggregation: 33638 RIPE Deaggregation factor: 1.65 Prefixes being announced from the RIPE address blocks: 50812 Unique aggregates announced from the RIPE address blocks: 33487 RIPE Region origin ASes present in the Internet Routing Table: 11279 RIPE Prefixes per ASN: 4.51 RIPE Region origin ASes announcing only one prefix: 5888 RIPE Region transit ASes present in the Internet Routing Table: 1753 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 25 Number of RIPE addresses announced to Internet: 355334081 Equivalent to 21 /8s, 45 /16s and 247 /24s Percentage of available RIPE address space announced: 81.5
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: 21468 Total LACNIC prefixes after maximum aggregation: 4968 LACNIC Deaggregation factor: 4.32 Prefixes being announced from the LACNIC address blocks: 19905 Unique aggregates announced from the LACNIC address blocks: 9837 LACNIC Region origin ASes present in the Internet Routing Table: 893 LACNIC Prefixes per ASN: 22.29 LACNIC Region origin ASes announcing only one prefix: 270 LACNIC Region transit ASes present in the Internet Routing Table: 159 Average LACNIC Region AS path length visible: 5.7 Max LACNIC Region AS path length visible: 27 Number of LACNIC addresses announced to Internet: 50837252 Equivalent to 3 /8s, 7 /16s and 183 /24s Percentage of available LACNIC address space announced: 50.5
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: 3785 Total AfriNIC prefixes after maximum aggregation: 1208 AfriNIC Deaggregation factor: 3.13 Prefixes being announced from the AfriNIC address blocks: 4137 Unique aggregates announced from the AfriNIC address blocks: 1839 AfriNIC Region origin ASes present in the Internet Routing Table: 243 AfriNIC Prefixes per ASN: 17.02 AfriNIC Region origin ASes announcing only one prefix: 76 AfriNIC Region transit ASes present in the Internet Routing Table: 49 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 11380736 Equivalent to 0 /8s, 173 /16s and 168 /24s Percentage of available AfriNIC address space announced: 33.9
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 2045 3134 41 China Education and Research 4755 1637 387 91 Videsh Sanchar Nigam Ltd. Aut 9583 1176 140 16 Sify Limited 9498 1161 550 61 BHARTI BT INTERNET LTD. 17488 1059 70 77 Hathway IP Over Cable Interne 4134 866 12647 320 CHINANET-BACKBONE 4766 812 6006 346 Korea Telecom (KIX) 18101 680 149 54 Reliance Infocom Ltd Internet 9829 598 450 12 BSNL National Internet Backbo 1221 544 1918 418 Telstra Pty 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 3549 1431 539 204 Global Crossing 4323 1418 1027 374 Time Warner Telecom 7018 1403 10049 996 AT&T WorldNet Services 2386 1398 642 864 AT&T Data Communications Serv 11492 1211 146 36 Cable One 1803 1121 6 892 SPRINT 7011 1095 318 624 Citizens Utilities 18566 1043 296 10 Covad Communications 1785 1014 511 106 AppliedTheory Corporation 6197 988 598 508 BellSouth Network Solutions,
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 411 1787 368 TDC Tele Danmark 9198 401 74 9 Kazakhtelecom Data Network Ad 8452 356 188 7 TEDATA 3301 339 1459 307 TeliaNet Sweden 3320 323 7044 266 Deutsche Telekom AG 5462 298 666 26 Telewest Broadband 8866 298 78 24 Bulgarian Telecommunication C 8551 282 269 37 Bezeq International 3215 277 2678 89 France Telecom Transpac 680 272 2047 262 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 1609 222 64 Telecom Argentina Stet-France 8151 1175 2381 211 UniNet S.A. de C.V. 11830 585 299 9 Instituto Costarricense de El 22047 562 270 14 VTR PUNTO NET S.A. 16814 426 27 10 NSS, S.A. 6471 413 85 46 ENTEL CHILE S.A. 11172 411 85 65 Servicios Alestra S.A de C.V 10620 388 99 76 TVCABLE BOGOTA 14117 375 23 9 Telefonica del Sur S.A. 16735 333 76 10 Companhia de Telecomunicacoes
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 463 60 26 LINKdotNET AS number 3741 277 853 223 The Internet Solution 20858 217 34 3 EgyNet 2018 179 190 86 Tertiary Education Network 5713 150 558 120 Telkom SA Ltd 6713 144 135 11 Itissalat Al-MAGHRIB 33783 134 10 12 EEPAD TISP TELECOM & INTERNET 5536 121 8 16 Internet Egypt Network 29571 116 13 8 Ci Telecom Autonomous system 33776 99 6 7 Starcomms Nigeria Limited
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 2758 3002 109 bellsouth.net, inc. 4538 2045 3134 41 China Education and Research 23577 1686 34 749 Korea Telecom (ATM-MPLS) 4755 1637 387 91 Videsh Sanchar Nigam Ltd. Aut 7303 1609 222 64 Telecom Argentina Stet-France 3549 1431 539 204 Global Crossing 4323 1418 1027 374 Time Warner Telecom 7018 1403 10049 996 AT&T WorldNet Services 2386 1398 642 864 AT&T Data Communications Serv 11492 1211 146 36 Cable One
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4538 2045 2004 China Education and Research 4755 1637 1546 Videsh Sanchar Nigam Ltd. Aut 7303 1609 1545 Telecom Argentina Stet-France 3549 1431 1227 Global Crossing 11492 1211 1175 Cable One 9583 1176 1160 Sify Limited 9498 1161 1100 BHARTI BT INTERNET LTD. 4323 1418 1044 Time Warner Telecom 18566 1043 1033 Covad Communications 17488 1059 982 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global) -----------------------------------------
Bad AS Designation Network Transit AS Description 14780 UNALLOCATED 4.79.181.0/24 10310 Yahoo! 12180 UNALLOCATED 4.79.248.0/24 3561 Savvis 11096 UNALLOCATED 8.6.245.0/24 6939 Hurricane Electric 12180 UNALLOCATED 8.10.16.0/24 2914 Verio, Inc. 12180 UNALLOCATED 8.10.58.0/23 2914 Verio, Inc. 14779 UNALLOCATED 8.12.144.0/24 10310 Yahoo! 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
Complete listing at http://thyme.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global) -----------------------------------------------------------
Prefix Origin AS Description 10.29.246.49/32 286 KPNQwest Backbone AS 10.29.248.65/32 286 KPNQwest Backbone AS 10.29.248.71/32 286 KPNQwest Backbone AS 172.30.254.0/24 4771 Netgate
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses --------------------------------
Network Origin AS Description 24.51.159.0/24 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 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
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 /10:16 /11:43 /12:140 /13:285 /14:511 /15:1007 /16:9936 /17:4434 /18:7375 /19:15518 /20:18193 /21:17529 /22:22421 /23:23120 /24:137723 /25:838 /26:1001 /27:379 /28:683 /29:342 /30:204 /31:0 /32:203
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 11492 1197 1211 Cable One 7303 1116 1609 Telecom Argentina Stet-France 1803 1102 1121 SPRINT 2386 1098 1398 AT&T Data Communications Serv 3549 1060 1431 Global Crossing 18566 1024 1043 Covad Communications 9583 1011 1176 Sify Limited 4538 982 2045 China Education and Research 7011 978 1095 Citizens Utilities 4755 974 1637 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:9 8:102 12:2044 13:1 14:1 15:20 16:3 17:6 18:13 20:36 24:1066 25:1 32:200 33:4 38:418 40:94 41:650 44:2 47:8 52:3 55:3 56:3 57:45 58:581 59:495 60:440 61:997 62:1130 63:1972 64:3647 65:2428 66:3681 67:1179 68:673 69:2179 70:604 71:125 72:1664 73:6 74:950 75:227 76:314 77:649 78:608 79:148 80:898 81:857 82:617 83:384 84:548 85:1011 86:404 87:647 88:351 89:1285 90:11 91:1225 92:290 93:356 96:25 97:14 98:144 99:3 116:626 117:309 118:124 119:375 120:13 121:529 122:736 123:322 124:842 125:1120 128:322 129:201 130:128 131:405 132:66 133:9 134:179 135:32 136:222 137:113 138:150 139:67 140:483 141:96 142:435 143:285 144:349 145:50 146:373 147:150 148:504 149:183 150:129 151:180 152:144 153:133 154:11 155:268 156:207 157:266 158:168 159:221 160:253 161:111 162:212 163:196 164:581 165:455 166:325 167:320 168:616 169:128 170:443 171:28 172:3 189:177 190:1998 192:5779 193:4111 194:3286 195:2466 196:1066 198:3755 199:3233 200:6023 201:1594 202:8073 203:7826 204:4017 205:2100 206:2487 207:2831 208:3460 209:3576 210:2909 211:1203 212:1438 213:1654 214:451 215:50 216:4415 217:1236 218:398 219:492 220:1071 221:484 222:369
End of report
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