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Routing Table Report 00:00 GMT Thu 21 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: 273519 Prefixes after maximum aggregation: 131073 Deaggregation factor: 2.09 Unique aggregates announced to Internet: 129342 Total ASes present in the Internet Routing Table: 29059 Prefixes per ASN: 9.41 Origin-only ASes present in the Internet Routing Table: 25153 Origin ASes announcing only one prefix: 12226 Transit ASes present in the Internet Routing Table: 3906 Transit-only ASes present in the Internet Routing Table: 96 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 29 Max AS path prepend of ASN (12026) 22 Prefixes from unregistered ASNs in the Routing Table: 587 Unregistered ASNs in the Routing Table: 223 Number of 32-bit ASNs allocated by the RIRs: 58 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: 790 Number of addresses announced to Internet: 1912658684 Equivalent to 114 /8s, 0 /16s and 218 /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: 73.2 Total number of prefixes smaller than registry allocations: 135481
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 64201 Total APNIC prefixes after maximum aggregation: 22646 APNIC Deaggregation factor: 2.83 Prefixes being announced from the APNIC address blocks: 61267 Unique aggregates announced from the APNIC address blocks: 25847 APNIC Region origin ASes present in the Internet Routing Table: 3347 APNIC Prefixes per ASN: 18.31 APNIC Region origin ASes announcing only one prefix: 892 APNIC Region transit ASes present in the Internet Routing Table: 538 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 24 Number of APNIC addresses announced to Internet: 373203360 Equivalent to 22 /8s, 62 /16s and 161 /24s Percentage of available APNIC address space announced: 79.4
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: 123154 Total ARIN prefixes after maximum aggregation: 66547 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 91499 Unique aggregates announced from the ARIN address blocks: 34980 ARIN Region origin ASes present in the Internet Routing Table: 12391 ARIN Prefixes per ASN: 7.38 ARIN Region origin ASes announcing only one prefix: 4747 ARIN Region transit ASes present in the Internet Routing Table: 1254 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 26 Number of ARIN addresses announced to Internet: 362343937 Equivalent to 21 /8s, 152 /16s and 238 /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: 58285 Total RIPE prefixes after maximum aggregation: 34928 RIPE Deaggregation factor: 1.67 Prefixes being announced from the RIPE address blocks: 53676 Unique aggregates announced from the RIPE address blocks: 35262 RIPE Region origin ASes present in the Internet Routing Table: 11775 RIPE Prefixes per ASN: 4.56 RIPE Region origin ASes announcing only one prefix: 6185 RIPE Region transit ASes present in the Internet Routing Table: 1822 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 29 Number of RIPE addresses announced to Internet: 369501504 Equivalent to 22 /8s, 6 /16s and 37 /24s Percentage of available RIPE address space announced: 84.7
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: 23283 Total LACNIC prefixes after maximum aggregation: 5248 LACNIC Deaggregation factor: 4.44 Prefixes being announced from the LACNIC address blocks: 21552 Unique aggregates announced from the LACNIC address blocks: 10726 LACNIC Region origin ASes present in the Internet Routing Table: 986 LACNIC Prefixes per ASN: 21.86 LACNIC Region origin ASes announcing only one prefix: 318 LACNIC Region transit ASes present in the Internet Routing Table: 171 Average LACNIC Region AS path length visible: 5.6 Max LACNIC Region AS path length visible: 28 Number of LACNIC addresses announced to Internet: 54513428 Equivalent to 3 /8s, 63 /16s and 207 /24s Percentage of available LACNIC address space announced: 54.2
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: 4009 Total AfriNIC prefixes after maximum aggregation: 1223 AfriNIC Deaggregation factor: 3.28 Prefixes being announced from the AfriNIC address blocks: 4362 Unique aggregates announced from the AfriNIC address blocks: 1924 AfriNIC Region origin ASes present in the Internet Routing Table: 252 AfriNIC Prefixes per ASN: 17.31 AfriNIC Region origin ASes announcing only one prefix: 84 AfriNIC Region transit ASes present in the Internet Routing Table: 47 Average AfriNIC Region AS path length visible: 4.8 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC addresses announced to Internet: 12726016 Equivalent to 0 /8s, 194 /16s and 47 /24s Percentage of available AfriNIC address space announced: 37.9
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 3300 3214 44 China Education and Research 4755 1706 578 91 Videsh Sanchar Nigam Ltd. Aut 17488 1305 90 99 Hathway IP Over Cable Interne 9583 1175 92 496 Sify Limited 4134 849 13523 339 CHINANET-BACKBONE 4766 836 6407 355 Korea Telecom (KIX) 23577 825 33 731 Korea Telecom (ATM-MPLS) 4780 720 353 61 Digital United Inc. 18101 693 167 33 Reliance Infocom Ltd Internet 9498 671 291 55 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 3198 3358 208 bellsouth.net, inc. 6298 1980 319 732 Cox Communicatons 1785 1646 710 155 AppliedTheory Corporation 2386 1561 692 900 AT&T Data Communications Serv 4323 1494 1073 376 Time Warner Telecom 3549 1446 539 211 Global Crossing 7018 1423 9904 990 AT&T WorldNet Services 1803 1264 7 1001 SPRINT 11492 1214 151 22 Cable One 20115 1113 1080 573 Charter Communications
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 357 188 11 TEDATA 3301 332 1444 303 TeliaNet Sweden 3320 322 7047 270 Deutsche Telekom AG 8866 317 77 21 Bulgarian Telecommunication C 5462 307 666 27 Telewest Broadband 8551 289 270 39 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 1693 235 67 Telecom Argentina Stet-France 8151 1518 2592 223 UniNet S.A. de C.V. 8167 665 593 43 TELESC - Telecomunicacoes de 11830 664 299 9 Instituto Costarricense de El 22047 566 270 14 VTR PUNTO NET S.A. 16814 426 27 10 NSS, S.A. 6471 420 85 48 ENTEL CHILE S.A. 11172 409 118 71 Servicios Alestra S.A de C.V 16735 408 92 12 Companhia de Telecomunicacoes 10620 377 100 81 TVCABLE BOGOTA
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 496 64 28 LINKdotNET AS number 20858 402 34 3 EgyNet 3741 267 856 221 The Internet Solution 2018 223 213 131 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 117 539 70 Telkom SA Ltd 33776 115 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 4538 3300 3214 44 China Education and Research 6389 3198 3358 208 bellsouth.net, inc. 6298 1980 319 732 Cox Communicatons 4755 1706 578 91 Videsh Sanchar Nigam Ltd. Aut 7303 1693 235 67 Telecom Argentina Stet-France 1785 1646 710 155 AppliedTheory Corporation 2386 1561 692 900 AT&T Data Communications Serv 8151 1518 2592 223 UniNet S.A. de C.V. 4323 1494 1073 376 Time Warner Telecom 3549 1446 539 211 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 6389 3198 2990 bellsouth.net, inc. 7303 1693 1626 Telecom Argentina Stet-France 4755 1706 1615 Videsh Sanchar Nigam Ltd. Aut 1785 1646 1491 AppliedTheory Corporation 8151 1518 1295 UniNet S.A. de C.V. 6298 1980 1248 Cox Communicatons 3549 1446 1235 Global Crossing 17488 1305 1206 Hathway IP Over Cable Interne 11492 1214 1192 Cable One 4323 1494 1118 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 24.51.159.0/24 7843 Adelphia Corp. 24.53.86.0/24 7843 Adelphia Corp. 24.54.224.0/19 20001 HoldCo LLC - Road Runner 24.55.0.0/18 20001 HoldCo 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
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 /13:298 /14:536 /15:1069 /16:10131 /17:4419 /18:7616 /19:16031 /20:19070 /21:18440 /22:23813 /23:24705 /24:142776 /25:872 /26:1105 /27:384 /28:734 /29:840 /30:217 /31:0 /32:225
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2035 3198 bellsouth.net, inc. 6298 1953 1980 Cox Communicatons 4538 1759 3300 China Education and Research 1803 1242 1264 SPRINT 2386 1239 1561 AT&T Data Communications Serv 7303 1196 1693 Telecom Argentina Stet-France 11492 1195 1214 Cable One 1785 1115 1646 AppliedTheory Corporation 17488 1112 1305 Hathway IP Over Cable Interne 3549 1083 1446 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:8 8:129 12:2126 13:2 14:1 15:22 16:3 17:5 18:13 20:37 24:1085 32:197 38:488 40:92 41:693 43:1 44:2 47:12 50:1 52:3 55:3 56:3 57:48 58:560 59:585 60:453 61:992 62:1249 63:1980 64:3399 65:2356 66:3457 67:1224 68:769 69:2302 70:856 71:135 72:2010 73:7 74:1109 75:166 76:324 77:765 78:820 79:222 80:976 81:875 82:600 83:384 84:574 85:984 86:399 87:727 88:339 89:1316 90:40 91:1427 92:245 93:833 94:78 96:57 97:59 98:310 99:3 114:97 115:41 116:969 117:351 118:200 119:480 120:75 121:597 122:821 123:382 124:843 125:1232 128:353 129:205 130:135 131:409 132:70 133:9 134:188 135:33 136:223 137:93 138:141 139:100 140:505 141:103 142:405 143:321 144:403 145:51 146:385 147:156 148:516 149:202 150:129 151:183 152:148 153:143 154:10 155:280 156:171 157:289 158:166 159:301 160:273 161:132 162:266 163:155 164:518 165:461 166:380 167:333 168:628 169:139 170:448 171:33 172:10 173:16 188:1 189:518 190:2298 192:5810 193:4238 194:3278 195:2616 196:1016 198:3736 199:3314 200:5933 201:1704 202:8218 203:8084 204:3962 205:2155 206:2450 207:2772 208:3646 209:3384 210:2992 211:1243 212:1439 213:1637 214:180 215:50 216:4351 217:1224 218:403 219:517 220:1066 221:455 222:440
End of report
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