This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats@lists.apnic.net For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 04:00 +10GMT Sat 24 May, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 256264 Prefixes after maximum aggregation: 127251 Deaggregation factor: 2.01 Unique aggregates announced to Internet: 124284 Total ASes present in the Internet Routing Table: 28277 Prefixes per ASN: 9.06 Origin-only ASes present in the Internet Routing Table: 24653 Origin ASes announcing only one prefix: 11865 Transit ASes present in the Internet Routing Table: 3624 Transit-only ASes present in the Internet Routing Table: 81 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 18 Max AS path prepend of ASN (39375) 13 Prefixes from unregistered ASNs in the Routing Table: 601 Unregistered ASNs in the Routing Table: 219 Number of 32-bit ASNs allocated by the RIRs: 47 Prefixes from 32-bit ASNs in the Routing Table: 8 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 805 Number of addresses announced to Internet: 1870739648 Equivalent to 111 /8s, 129 /16s and 56 /24s Percentage of available address space announced: 50.5 Percentage of allocated address space announced: 62.0 Percentage of available address space allocated: 81.4 Percentage of address space in use by end-sites: 72.0 Total number of prefixes smaller than registry allocations: 123489 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 58778 Total APNIC prefixes after maximum aggregation: 21606 APNIC Deaggregation factor: 2.72 Prefixes being announced from the APNIC address blocks: 55812 Unique aggregates announced from the APNIC address blocks: 23839 APNIC Region origin ASes present in the Internet Routing Table: 3240 APNIC Prefixes per ASN: 17.23 APNIC Region origin ASes announcing only one prefix: 848 APNIC Region transit ASes present in the Internet Routing Table: 500 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 349390304 Equivalent to 20 /8s, 211 /16s and 69 /24s Percentage of available APNIC address space announced: 80.1 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: 117761 Total ARIN prefixes after maximum aggregation: 65072 ARIN Deaggregation factor: 1.81 Prefixes being announced from the ARIN address blocks: 87269 Unique aggregates announced from the ARIN address blocks: 34233 ARIN Region origin ASes present in the Internet Routing Table: 12191 ARIN Prefixes per ASN: 7.16 ARIN Region origin ASes announcing only one prefix: 4698 ARIN Region transit ASes present in the Internet Routing Table: 1136 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 357831296 Equivalent to 21 /8s, 84 /16s and 18 /24s Percentage of available ARIN address space announced: 73.5 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: 55139 Total RIPE prefixes after maximum aggregation: 33790 RIPE Deaggregation factor: 1.63 Prefixes being announced from the RIPE address blocks: 50307 Unique aggregates announced from the RIPE address blocks: 33864 RIPE Region origin ASes present in the Internet Routing Table: 11361 RIPE Prefixes per ASN: 4.43 RIPE Region origin ASes announcing only one prefix: 5933 RIPE Region transit ASes present in the Internet Routing Table: 1718 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 357934464 Equivalent to 21 /8s, 85 /16s and 165 /24s Percentage of available RIPE address space announced: 82.1 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: 20118 Total LACNIC prefixes after maximum aggregation: 5085 LACNIC Deaggregation factor: 3.96 Prefixes being announced from the LACNIC address blocks: 18471 Unique aggregates announced from the LACNIC address blocks: 10100 LACNIC Region origin ASes present in the Internet Routing Table: 947 LACNIC Prefixes per ASN: 19.50 LACNIC Region origin ASes announcing only one prefix: 309 LACNIC Region transit ASes present in the Internet Routing Table: 159 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 51585024 Equivalent to 3 /8s, 19 /16s and 32 /24s Percentage of available LACNIC address space announced: 51.2 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: 3871 Total AfriNIC prefixes after maximum aggregation: 1200 AfriNIC Deaggregation factor: 3.23 Prefixes being announced from the AfriNIC address blocks: 4177 Unique aggregates announced from the AfriNIC address blocks: 1842 AfriNIC Region origin ASes present in the Internet Routing Table: 243 AfriNIC Prefixes per ASN: 17.19 AfriNIC Region origin ASes announcing only one prefix: 77 AfriNIC Region transit ASes present in the Internet Routing Table: 49 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 12240640 Equivalent to 0 /8s, 186 /16s and 199 /24s Percentage of available AfriNIC address space announced: 36.5 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 4755 1639 387 91 Videsh Sanchar Nigam Ltd. Aut 9498 1151 550 60 BHARTI BT INTERNET LTD. 9583 1149 140 15 Sify Limited 17488 1064 70 76 Hathway IP Over Cable Interne 4134 854 12661 319 CHINANET-BACKBONE 4766 847 6006 343 Korea Telecom (KIX) 23577 823 34 703 Korea Telecom (ATM-MPLS) 18101 681 149 51 Reliance Infocom Ltd Internet 9829 598 450 12 BSNL National Internet Backbo 1221 546 1919 420 Telstra Pty Ltd Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 1993 3087 178 bellsouth.net, inc. 4323 1464 1045 379 Time Warner Telecom 2386 1434 659 871 AT&T Data Communications Serv 7018 1384 5971 986 AT&T WorldNet Services 11492 1223 148 11 Cable One 7011 1088 302 616 Citizens Utilities 18566 1044 296 10 Covad Communications 1785 1022 510 105 AppliedTheory Corporation 6197 987 597 507 BellSouth Network Solutions, 174 970 6837 806 Cogent Communications Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 3292 408 1788 369 TDC Tele Danmark 8452 356 188 7 TEDATA 3301 337 1458 305 TeliaNet Sweden 3320 317 7044 266 Deutsche Telekom AG 8866 297 77 21 Bulgarian Telecommunication C 5462 291 666 26 Telewest Broadband 3215 284 2702 93 France Telecom Transpac 8551 282 269 37 Bezeq International 680 275 2047 265 DFN-IP service G-WiN 9155 267 46 11 QualityNet AS number Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1227 2464 228 UniNet S.A. de C.V. 11830 601 299 9 Instituto Costarricense de El 22047 565 270 14 VTR PUNTO NET S.A. 7303 460 225 66 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 6471 414 85 46 ENTEL CHILE S.A. 11172 410 117 67 Servicios Alestra S.A de C.V 10620 388 99 70 TVCABLE BOGOTA 14117 372 23 9 Telefonica del Sur S.A. 20299 330 36 31 NEWCOM AMERICAS Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 472 61 28 LINKdotNET AS number 3741 286 853 223 The Internet Solution 20858 223 34 3 EgyNet 2018 182 173 82 Tertiary Education Network 5713 174 575 108 Telkom SA Ltd 6713 143 135 11 Itissalat Al-MAGHRIB 33783 134 10 12 EEPAD TISP TELECOM & INTERNET 5536 121 8 16 Internet Egypt Network 29571 100 13 8 Ci Telecom Autonomous system 33776 99 6 7 Starcomms Nigeria Limited Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 1993 3087 178 bellsouth.net, inc. 4755 1639 387 91 Videsh Sanchar Nigam Ltd. Aut 4323 1464 1045 379 Time Warner Telecom 2386 1434 659 871 AT&T Data Communications Serv 7018 1384 5971 986 AT&T WorldNet Services 8151 1227 2464 228 UniNet S.A. de C.V. 11492 1223 148 11 Cable One 9498 1151 550 60 BHARTI BT INTERNET LTD. 9583 1149 140 15 Sify Limited 7011 1088 302 616 Citizens Utilities Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4755 1639 1548 Videsh Sanchar Nigam Ltd. Aut 11492 1223 1212 Cable One 9583 1149 1134 Sify Limited 9498 1151 1091 BHARTI BT INTERNET LTD. 4323 1464 1085 Time Warner Telecom 18566 1044 1034 Covad Communications 8151 1227 999 UniNet S.A. de C.V. 17488 1064 988 Hathway IP Over Cable Interne 1785 1022 917 AppliedTheory Corporation 22773 946 883 Cox Communications, Inc. Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 16927 UNALLOCATED 12.0.252.0/23 701 UUNET Technologies, 22492 UNALLOCATED 12.2.46.0/24 7018 AT&T WorldNet Servic 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 27220 UNALLOCATED 12.35.204.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.apnic.net/current/data-badAS 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/current/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 /10:16 /11:42 /12:141 /13:282 /14:513 /15:1009 /16:9919 /17:4362 /18:7282 /19:15459 /20:17899 /21:17380 /22:21782 /23:22818 /24:135021 /25:791 /26:926 /27:494 /28:81 /29:9 /30:1 /31:0 /32:9 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 1229 1993 bellsouth.net, inc. 11492 1205 1223 Cable One 2386 1133 1434 AT&T Data Communications Serv 18566 1025 1044 Covad Communications 9583 987 1149 Sify Limited 4755 985 1639 Videsh Sanchar Nigam Ltd. Aut 7011 972 1088 Citizens Utilities 6478 950 951 AT&T Worldnet Services 17488 877 1064 Hathway IP Over Cable Interne 9498 835 1151 BHARTI BT INTERNET LTD. Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 8:107 12:2049 13:1 15:20 16:3 17:5 18:13 20:35 24:1075 25:1 32:61 33:3 38:425 40:93 41:649 44:2 47:12 52:3 55:3 56:3 57:23 58:511 59:462 60:442 61:997 62:1113 63:1953 64:3393 65:2417 66:3651 67:1197 68:681 69:2239 70:631 71:125 72:1755 73:5 74:973 75:216 76:308 77:654 78:611 79:153 80:898 81:858 82:583 83:394 84:566 85:1032 86:416 87:654 88:329 89:1223 90:11 91:1231 92:193 93:487 96:31 97:17 98:172 99:3 114:13 116:642 117:321 118:132 119:423 120:37 121:530 122:768 123:345 124:852 125:1131 128:325 129:200 130:131 131:401 132:66 133:9 134:178 135:33 136:220 137:90 138:151 139:64 140:484 141:99 142:399 143:299 144:352 145:50 146:363 147:153 148:503 149:183 150:131 151:191 152:141 153:134 154:10 155:273 156:174 157:271 158:163 159:221 160:257 161:114 162:228 163:186 164:524 165:448 166:309 167:323 168:609 169:131 170:427 171:28 172:10 189:168 190:2017 192:5789 193:4100 194:3212 195:2438 196:1063 198:3740 199:3261 200:5634 201:1436 202:7602 203:7839 204:3998 205:2079 206:2404 207:2766 208:3338 209:3426 210:2499 211:1051 212:1389 213:1637 214:473 215:49 216:4357 217:1200 218:355 219:416 220:1080 221:466 222:309 End of report