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Routing Table Report 00:00 GMT Thu 28 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: 274656 Prefixes after maximum aggregation: 131228 Deaggregation factor: 2.09 Unique aggregates announced to Internet: 129802 Total ASes present in the Internet Routing Table: 29167 Prefixes per ASN: 9.42 Origin-only ASes present in the Internet Routing Table: 25235 Origin ASes announcing only one prefix: 12262 Transit ASes present in the Internet Routing Table: 3932 Transit-only ASes present in the Internet Routing Table: 101 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 28 Max AS path prepend of ASN (12026) 22 Prefixes from unregistered ASNs in the Routing Table: 583 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: 778 Number of addresses announced to Internet: 1915037494 Equivalent to 114 /8s, 37 /16s and 39 /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: 73.3 Total number of prefixes smaller than registry allocations: 136035
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 64588 Total APNIC prefixes after maximum aggregation: 22693 APNIC Deaggregation factor: 2.85 Prefixes being announced from the APNIC address blocks: 61653 Unique aggregates announced from the APNIC address blocks: 25920 APNIC Region origin ASes present in the Internet Routing Table: 3362 APNIC Prefixes per ASN: 18.34 APNIC Region origin ASes announcing only one prefix: 898 APNIC Region transit ASes present in the Internet Routing Table: 539 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 24 Number of APNIC addresses announced to Internet: 374432416 Equivalent to 22 /8s, 81 /16s and 98 /24s Percentage of available APNIC address space announced: 79.7
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: 123724 Total ARIN prefixes after maximum aggregation: 66453 ARIN Deaggregation factor: 1.86 Prefixes being announced from the ARIN address blocks: 91946 Unique aggregates announced from the ARIN address blocks: 35134 ARIN Region origin ASes present in the Internet Routing Table: 12428 ARIN Prefixes per ASN: 7.40 ARIN Region origin ASes announcing only one prefix: 4766 ARIN Region transit ASes present in the Internet Routing Table: 1249 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 25 Number of ARIN addresses announced to Internet: 362856449 Equivalent to 21 /8s, 160 /16s and 192 /24s Percentage of available ARIN address space announced: 74.6
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: 58704 Total RIPE prefixes after maximum aggregation: 35085 RIPE Deaggregation factor: 1.67 Prefixes being announced from the RIPE address blocks: 54076 Unique aggregates announced from the RIPE address blocks: 35434 RIPE Region origin ASes present in the Internet Routing Table: 11819 RIPE Prefixes per ASN: 4.58 RIPE Region origin ASes announcing only one prefix: 6196 RIPE Region transit ASes present in the Internet Routing Table: 1851 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 28 Number of RIPE addresses announced to Internet: 370053248 Equivalent to 22 /8s, 14 /16s and 144 /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: 23001 Total LACNIC prefixes after maximum aggregation: 5264 LACNIC Deaggregation factor: 4.37 Prefixes being announced from the LACNIC address blocks: 21253 Unique aggregates announced from the LACNIC address blocks: 10761 LACNIC Region origin ASes present in the Internet Routing Table: 989 LACNIC Prefixes per ASN: 21.49 LACNIC Region origin ASes announcing only one prefix: 315 LACNIC Region transit ASes present in the Internet Routing Table: 169 Average LACNIC Region AS path length visible: 5.6 Max LACNIC Region AS path length visible: 28 Number of LACNIC addresses announced to Internet: 54642958 Equivalent to 3 /8s, 65 /16s and 201 /24s Percentage of available LACNIC address space announced: 54.3
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: 4057 Total AfriNIC prefixes after maximum aggregation: 1257 AfriNIC Deaggregation factor: 3.23 Prefixes being announced from the AfriNIC address blocks: 4408 Unique aggregates announced from the AfriNIC address blocks: 1904 AfriNIC Region origin ASes present in the Internet Routing Table: 258 AfriNIC Prefixes per ASN: 17.09 AfriNIC Region origin ASes announcing only one prefix: 87 AfriNIC Region transit ASes present in the Internet Routing Table: 52 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 18 Number of AfriNIC addresses announced to Internet: 12656640 Equivalent to 0 /8s, 193 /16s and 32 /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 3302 3214 44 China Education and Research 4755 1716 578 91 Videsh Sanchar Nigam Ltd. Aut 17488 1358 89 104 Hathway IP Over Cable Interne 9583 1201 96 496 Sify Limited 4134 851 13619 341 CHINANET-BACKBONE 4766 841 6407 356 Korea Telecom (KIX) 23577 824 33 729 Korea Telecom (ATM-MPLS) 4780 723 353 61 Digital United Inc. 18101 694 167 33 Reliance Infocom Ltd Internet 9498 677 291 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 4068 3417 332 bellsouth.net, inc. 6298 2005 322 708 Cox Communicatons 1785 1651 710 155 AppliedTheory Corporation 2386 1559 692 901 AT&T Data Communications Serv 4323 1496 1073 374 Time Warner Telecom 3549 1454 539 211 Global Crossing 7018 1423 9890 986 AT&T WorldNet Services 20115 1320 1145 656 Charter Communications 1803 1273 8 1005 SPRINT 11492 1214 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 359 188 11 TEDATA 3301 333 1444 304 TeliaNet Sweden 3320 322 7047 270 Deutsche Telekom AG 8866 316 77 21 Bulgarian Telecommunication C 5462 307 666 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 1692 235 68 Telecom Argentina Stet-France 8151 1531 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 420 85 48 ENTEL CHILE S.A. 10620 415 102 71 TVCABLE BOGOTA 16735 414 92 11 Companhia de Telecomunicacoes 11172 409 118 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 228 214 135 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 332 bellsouth.net, inc. 4538 3302 3214 44 China Education and Research 6298 2005 322 708 Cox Communicatons 4755 1716 578 91 Videsh Sanchar Nigam Ltd. Aut 7303 1692 235 68 Telecom Argentina Stet-France 1785 1651 710 155 AppliedTheory Corporation 2386 1559 692 901 AT&T Data Communications Serv 8151 1531 2590 225 UniNet S.A. de C.V. 4323 1496 1073 374 Time Warner Telecom 3549 1454 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 4538 3302 3258 China Education and Research 4755 1716 1625 Videsh Sanchar Nigam Ltd. Aut 7303 1692 1624 Telecom Argentina Stet-France 1785 1651 1496 AppliedTheory Corporation 8151 1531 1306 UniNet S.A. de C.V. 6298 2005 1297 Cox Communicatons 17488 1358 1254 Hathway IP Over Cable Interne 3549 1454 1243 Global Crossing 11492 1214 1192 Cable One 4323 1496 1122 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 /8:19 /9:9 /10:17 /11:46 /12:147 /13:298 /14:539 /15:1071 /16:10146 /17:4439 /18:7681 /19:16083 /20:19131 /21:18566 /22:24001 /23:24848 /24:143727 /25:864 /26:1105 /27:374 /28:733 /29:374 /30:225 /31:0 /32:213
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2709 4068 bellsouth.net, inc. 6298 1978 2005 Cox Communicatons 4538 1761 3302 China Education and Research 1803 1251 1273 SPRINT 2386 1236 1559 AT&T Data Communications Serv 7303 1196 1692 Telecom Argentina Stet-France 11492 1195 1214 Cable One 17488 1166 1358 Hathway IP Over Cable Interne 1785 1118 1651 AppliedTheory Corporation 3549 1091 1454 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 12:2152 13:2 14:1 15:22 16:3 17:5 18:13 20:37 24:1082 32:197 38:490 40:92 41:711 43:1 44:2 47:12 52:3 55:3 56:3 57:47 58:564 59:584 60:453 61:995 62:1258 63:1982 64:3422 65:2360 66:3471 67:1230 68:781 69:2303 70:871 71:135 72:2031 73:6 74:1120 75:171 76:324 77:784 78:823 79:239 80:978 81:875 82:595 83:386 84:573 85:982 86:402 87:738 88:340 89:1334 90:43 91:1451 92:255 93:852 94:111 96:59 97:63 98:315 99:6 114:100 115:47 116:1016 117:354 118:205 119:484 120:88 121:607 122:829 123:402 124:849 125:1238 128:355 129:205 130:134 131:414 132:70 133:9 134:188 135:34 136:223 137:94 138:141 139:101 140:509 141:104 142:406 143:342 144:399 145:51 146:384 147:157 148:516 149:203 150:129 151:183 152:148 153:143 154:10 155:278 156:175 157:299 158:163 159:294 160:273 161:135 162:263 163:156 164:518 165:469 166:380 167:333 168:630 169:141 170:454 171:33 172:10 173:33 188:1 189:558 190:2365 192:5816 193:4237 194:3298 195:2636 196:1031 198:3751 199:3322 200:5953 201:1693 202:8244 203:8124 204:3962 205:2165 206:2450 207:2777 208:3666 209:3412 210:2995 211:1248 212:1460 213:1647 214:180 215:50 216:4372 217:1225 218:403 219:521 220:1068 221:459 222:441
End of report
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