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Routing Table Report 00:00 GMT Tue 19 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: 273226 Prefixes after maximum aggregation: 131116 Deaggregation factor: 2.08 Unique aggregates announced to Internet: 129281 Total ASes present in the Internet Routing Table: 29025 Prefixes per ASN: 9.41 Origin-only ASes present in the Internet Routing Table: 25151 Origin ASes announcing only one prefix: 12211 Transit ASes present in the Internet Routing Table: 3874 Transit-only ASes present in the Internet Routing Table: 90 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 28 Max AS path prepend of ASN (17957) 20 Prefixes from unregistered ASNs in the Routing Table: 592 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: 786 Number of addresses announced to Internet: 1910638844 Equivalent to 113 /8s, 226 /16s and 8 /24s Percentage of available address space announced: 51.5 Percentage of allocated address space announced: 62.6 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: 135364
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 64218 Total APNIC prefixes after maximum aggregation: 22705 APNIC Deaggregation factor: 2.83 Prefixes being announced from the APNIC address blocks: 61299 Unique aggregates announced from the APNIC address blocks: 25917 APNIC Region origin ASes present in the Internet Routing Table: 3337 APNIC Prefixes per ASN: 18.37 APNIC Region origin ASes announcing only one prefix: 884 APNIC Region transit ASes present in the Internet Routing Table: 539 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 24 Number of APNIC addresses announced to Internet: 371934368 Equivalent to 22 /8s, 43 /16s and 68 /24s Percentage of available APNIC address space announced: 79.2
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: 122993 Total ARIN prefixes after maximum aggregation: 66527 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 91401 Unique aggregates announced from the ARIN address blocks: 34886 ARIN Region origin ASes present in the Internet Routing Table: 12392 ARIN Prefixes per ASN: 7.38 ARIN Region origin ASes announcing only one prefix: 4764 ARIN Region transit ASes present in the Internet Routing Table: 1234 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 22 Number of ARIN addresses announced to Internet: 362179329 Equivalent to 21 /8s, 150 /16s and 107 /24s Percentage of available ARIN address space announced: 74.4
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: 58161 Total RIPE prefixes after maximum aggregation: 34910 RIPE Deaggregation factor: 1.67 Prefixes being announced from the RIPE address blocks: 53580 Unique aggregates announced from the RIPE address blocks: 35248 RIPE Region origin ASes present in the Internet Routing Table: 11758 RIPE Prefixes per ASN: 4.56 RIPE Region origin ASes announcing only one prefix: 6168 RIPE Region transit ASes present in the Internet Routing Table: 1820 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 20 Number of RIPE addresses announced to Internet: 369260608 Equivalent to 22 /8s, 2 /16s and 120 /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: 23241 Total LACNIC prefixes after maximum aggregation: 5260 LACNIC Deaggregation factor: 4.42 Prefixes being announced from the LACNIC address blocks: 21493 Unique aggregates announced from the LACNIC address blocks: 10710 LACNIC Region origin ASes present in the Internet Routing Table: 986 LACNIC Prefixes per ASN: 21.80 LACNIC Region origin ASes announcing only one prefix: 316 LACNIC Region transit ASes present in the Internet Routing Table: 172 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 28 Number of LACNIC addresses announced to Internet: 54411028 Equivalent to 3 /8s, 62 /16s and 63 /24s Percentage of available LACNIC address space announced: 54.1
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: 4020 Total AfriNIC prefixes after maximum aggregation: 1234 AfriNIC Deaggregation factor: 3.26 Prefixes being announced from the AfriNIC address blocks: 4366 Unique aggregates announced from the AfriNIC address blocks: 1917 AfriNIC Region origin ASes present in the Internet Routing Table: 251 AfriNIC Prefixes per ASN: 17.39 AfriNIC Region origin ASes announcing only one prefix: 79 AfriNIC Region transit ASes present in the Internet Routing Table: 48 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC addresses announced to Internet: 12738048 Equivalent to 0 /8s, 194 /16s and 94 /24s Percentage of available AfriNIC address space announced: 38.0
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 3294 3134 41 China Education and Research 4755 1697 578 91 Videsh Sanchar Nigam Ltd. Aut 17488 1300 89 99 Hathway IP Over Cable Interne 9583 1172 92 494 Sify Limited 4134 849 13523 339 CHINANET-BACKBONE 4766 835 6391 354 Korea Telecom (KIX) 23577 825 33 730 Korea Telecom (ATM-MPLS) 4780 719 353 61 Digital United Inc. 18101 693 167 33 Reliance Infocom Ltd Internet 9498 677 291 56 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 3195 3358 208 bellsouth.net, inc. 6298 1979 319 743 Cox Communicatons 1785 1646 710 156 AppliedTheory Corporation 2386 1560 677 907 AT&T Data Communications Serv 4323 1497 1078 379 Time Warner Telecom 3549 1444 539 211 Global Crossing 7018 1421 9903 989 AT&T WorldNet Services 1803 1263 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 395 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 306 666 27 Telewest Broadband 8551 289 270 39 Bezeq International 1257 278 1131 203 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 1699 236 65 Telecom Argentina Stet-France 8151 1508 2543 219 UniNet S.A. de C.V. 8167 666 593 43 TELESC - Telecomunicacoes de 11830 664 299 9 Instituto Costarricense de El 22047 565 270 14 VTR PUNTO NET S.A. 16814 426 27 10 NSS, S.A. 6471 420 85 48 ENTEL CHILE S.A. 16735 410 92 12 Companhia de Telecomunicacoes 11172 407 102 70 Servicios Alestra S.A de C.V 10620 371 99 90 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 495 64 27 LINKdotNET AS number 20858 402 34 3 EgyNet 3741 266 855 224 The Internet Solution 2018 212 213 130 Tertiary Education Network 6713 144 135 11 Itissalat Al-MAGHRIB 33783 136 10 13 EEPAD TISP TELECOM & INTERNET 5713 129 540 74 Telkom SA Ltd 5536 120 8 17 Internet Egypt Network 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 3294 3134 41 China Education and Research 6389 3195 3358 208 bellsouth.net, inc. 6298 1979 319 743 Cox Communicatons 7303 1699 236 65 Telecom Argentina Stet-France 4755 1697 578 91 Videsh Sanchar Nigam Ltd. Aut 1785 1646 710 156 AppliedTheory Corporation 2386 1560 677 907 AT&T Data Communications Serv 8151 1508 2543 219 UniNet S.A. de C.V. 4323 1497 1078 379 Time Warner Telecom 3549 1444 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 3195 2987 bellsouth.net, inc. 7303 1699 1634 Telecom Argentina Stet-France 4755 1697 1606 Videsh Sanchar Nigam Ltd. Aut 1785 1646 1490 AppliedTheory Corporation 8151 1508 1289 UniNet S.A. de C.V. 6298 1979 1236 Cox Communicatons 3549 1444 1233 Global Crossing 17488 1300 1201 Hathway IP Over Cable Interne 11492 1214 1192 Cable One 4323 1497 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 /14:534 /15:1064 /16:10125 /17:4408 /18:7601 /19:16007 /20:19037 /21:18404 /22:23744 /23:24629 /24:142722 /25:884 /26:1130 /27:387 /28:734 /29:839 /30:217 /31:0 /32:224
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2033 3195 bellsouth.net, inc. 6298 1952 1979 Cox Communicatons 4538 1759 3294 China Education and Research 1803 1241 1263 SPRINT 2386 1239 1560 AT&T Data Communications Serv 7303 1202 1699 Telecom Argentina Stet-France 11492 1195 1214 Cable One 1785 1114 1646 AppliedTheory Corporation 17488 1107 1300 Hathway IP Over Cable Interne 3549 1081 1444 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:8 8:130 12:2122 13:2 14:1 15:22 16:3 17:5 18:13 20:37 24:1084 32:197 38:485 40:92 41:696 43:1 44:2 47:12 50:1 52:3 55:3 56:3 57:48 58:557 59:571 60:453 61:997 62:1247 63:1968 64:3396 65:2357 66:3451 67:1225 68:766 69:2296 70:861 71:135 72:2036 73:7 74:1102 75:166 76:318 77:760 78:818 79:241 80:966 81:876 82:616 83:384 84:575 85:980 86:400 87:720 88:338 89:1307 90:39 91:1421 92:245 93:811 94:109 96:54 97:55 98:309 99:3 114:90 115:40 116:962 117:352 118:199 119:462 120:74 121:604 122:820 123:380 124:894 125:1233 128:353 129:205 130:135 131:409 132:70 133:9 134:188 135:33 136:223 137:94 138:146 139:100 140:504 141:103 142:405 143:329 144:401 145:51 146:384 147:156 148:518 149:200 150:129 151:183 152:148 153:140 154:10 155:280 156:171 157:290 158:166 159:295 160:272 161:118 162:266 163:155 164:519 165:460 166:379 167:330 168:628 169:138 170:450 171:33 172:10 173:13 188:1 189:516 190:2295 192:5809 193:4229 194:3274 195:2614 196:1019 198:3730 199:3320 200:5925 201:1704 202:8230 203:8099 204:3955 205:2153 206:2450 207:2773 208:3641 209:3390 210:2993 211:1243 212:1440 213:1626 214:179 215:50 216:4346 217:1220 218:404 219:517 220:1065 221:457 222:440
End of report
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