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 07 Jun, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 257029 Prefixes after maximum aggregation: 127846 Deaggregation factor: 2.01 Unique aggregates announced to Internet: 126093 Total ASes present in the Internet Routing Table: 28361 Prefixes per ASN: 9.06 Origin-only ASes present in the Internet Routing Table: 24725 Origin ASes announcing only one prefix: 11924 Transit ASes present in the Internet Routing Table: 3636 Transit-only ASes present in the Internet Routing Table: 77 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 18 Max AS path prepend of ASN (43380) 13 Prefixes from unregistered ASNs in the Routing Table: 623 Unregistered ASNs in the Routing Table: 231 Number of 32-bit ASNs allocated by the RIRs: 49 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: 783 Number of addresses announced to Internet: 1875474272 Equivalent to 111 /8s, 201 /16s and 119 /24s Percentage of available address space announced: 50.6 Percentage of allocated address space announced: 61.4 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 72.1 Total number of prefixes smaller than registry allocations: 124322 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 58989 Total APNIC prefixes after maximum aggregation: 22099 APNIC Deaggregation factor: 2.67 Prefixes being announced from the APNIC address blocks: 55995 Unique aggregates announced from the APNIC address blocks: 24955 APNIC Region origin ASes present in the Internet Routing Table: 3265 APNIC Prefixes per ASN: 17.15 APNIC Region origin ASes announcing only one prefix: 858 APNIC Region transit ASes present in the Internet Routing Table: 505 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 351681440 Equivalent to 20 /8s, 246 /16s and 59 /24s Percentage of available APNIC address space announced: 74.9 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: 117708 Total ARIN prefixes after maximum aggregation: 64961 ARIN Deaggregation factor: 1.81 Prefixes being announced from the ARIN address blocks: 87645 Unique aggregates announced from the ARIN address blocks: 34442 ARIN Region origin ASes present in the Internet Routing Table: 12183 ARIN Prefixes per ASN: 7.19 ARIN Region origin ASes announcing only one prefix: 4716 ARIN Region transit ASes present in the Internet Routing Table: 1133 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 15 Number of ARIN addresses announced to Internet: 356844800 Equivalent to 21 /8s, 69 /16s and 5 /24s Percentage of available ARIN address space announced: 73.3 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: 55629 Total RIPE prefixes after maximum aggregation: 33945 RIPE Deaggregation factor: 1.64 Prefixes being announced from the RIPE address blocks: 50825 Unique aggregates announced from the RIPE address blocks: 34021 RIPE Region origin ASes present in the Internet Routing Table: 11418 RIPE Prefixes per ASN: 4.45 RIPE Region origin ASes announcing only one prefix: 5965 RIPE Region transit ASes present in the Internet Routing Table: 1730 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 360492160 Equivalent to 21 /8s, 124 /16s and 172 /24s Percentage of available RIPE address space announced: 82.6 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: 20191 Total LACNIC prefixes after maximum aggregation: 5129 LACNIC Deaggregation factor: 3.94 Prefixes being announced from the LACNIC address blocks: 18426 Unique aggregates announced from the LACNIC address blocks: 10351 LACNIC Region origin ASes present in the Internet Routing Table: 953 LACNIC Prefixes per ASN: 19.33 LACNIC Region origin ASes announcing only one prefix: 306 LACNIC Region transit ASes present in the Internet Routing Table: 160 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 52306304 Equivalent to 3 /8s, 30 /16s and 33 /24s Percentage of available LACNIC address space announced: 52.0 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: 3890 Total AfriNIC prefixes after maximum aggregation: 1194 AfriNIC Deaggregation factor: 3.26 Prefixes being announced from the AfriNIC address blocks: 4136 Unique aggregates announced from the AfriNIC address blocks: 1862 AfriNIC Region origin ASes present in the Internet Routing Table: 241 AfriNIC Prefixes per ASN: 17.16 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: 3.8 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 12314112 Equivalent to 0 /8s, 187 /16s and 230 /24s Percentage of available AfriNIC address space announced: 36.7 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 4755 1642 387 89 Videsh Sanchar Nigam Ltd. Aut 9498 1174 550 61 BHARTI BT INTERNET LTD. 9583 1112 111 412 Sify Limited 17488 1078 71 94 Hathway IP Over Cable Interne 4766 849 6006 343 Korea Telecom (KIX) 4134 826 12917 324 CHINANET-BACKBONE 23577 817 34 700 Korea Telecom (ATM-MPLS) 18101 691 167 36 Reliance Infocom Ltd Internet 9829 598 450 12 BSNL National Internet Backbo 1221 549 1919 422 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 2208 3103 182 bellsouth.net, inc. 4323 1471 1045 377 Time Warner Telecom 2386 1439 658 872 AT&T Data Communications Serv 7018 1372 5815 981 AT&T WorldNet Services 11492 1228 148 12 Cable One 7011 1051 291 584 Citizens Utilities 18566 1044 296 10 Covad Communications 20115 1039 1062 563 Charter Communications 1785 1028 510 105 AppliedTheory Corporation 174 979 6837 805 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 410 1772 369 TDC Tele Danmark 3301 338 1460 308 TeliaNet Sweden 8452 327 188 7 TEDATA 3320 316 7043 265 Deutsche Telekom AG 8866 311 77 21 Bulgarian Telecommunication C 5462 291 666 26 Telewest Broadband 3215 287 2742 91 France Telecom Transpac 8551 283 269 38 Bezeq International 680 274 2047 264 DFN-IP service G-WiN 9155 271 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 1238 2464 227 UniNet S.A. de C.V. 11830 603 299 9 Instituto Costarricense de El 22047 565 270 14 VTR PUNTO NET S.A. 7303 466 229 66 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 6471 413 85 46 ENTEL CHILE S.A. 11172 412 118 69 Servicios Alestra S.A de C.V 10620 383 98 79 TVCABLE BOGOTA 14117 375 23 9 Telefonica del Sur S.A. 20299 338 23 89 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 282 853 223 The Internet Solution 20858 224 34 3 EgyNet 2018 191 189 82 Tertiary Education Network 5713 163 558 99 Telkom SA Ltd 6713 145 136 12 Itissalat Al-MAGHRIB 33783 134 10 12 EEPAD TISP TELECOM & INTERNET 5536 121 8 16 Internet Egypt Network 29571 103 13 8 Ci Telecom Autonomous system 33776 100 6 3 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 2208 3103 182 bellsouth.net, inc. 4755 1642 387 89 Videsh Sanchar Nigam Ltd. Aut 4323 1471 1045 377 Time Warner Telecom 2386 1439 658 872 AT&T Data Communications Serv 7018 1372 5815 981 AT&T WorldNet Services 8151 1238 2464 227 UniNet S.A. de C.V. 11492 1228 148 12 Cable One 9498 1174 550 61 BHARTI BT INTERNET LTD. 9583 1112 111 412 Sify Limited 17488 1078 71 94 Hathway IP Over Cable Interne Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4755 1642 1553 Videsh Sanchar Nigam Ltd. Aut 11492 1228 1216 Cable One 9498 1174 1113 BHARTI BT INTERNET LTD. 4323 1471 1094 Time Warner Telecom 18566 1044 1034 Covad Communications 8151 1238 1011 UniNet S.A. de C.V. 17488 1078 984 Hathway IP Over Cable Interne 1785 1028 923 AppliedTheory Corporation 22773 946 884 Cox Communications, Inc. 6478 951 799 AT&T Worldnet Services 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 /12:142 /13:279 /14:514 /15:1027 /16:9940 /17:4313 /18:7286 /19:15460 /20:17926 /21:17392 /22:21972 /23:22960 /24:135388 /25:805 /26:951 /27:488 /28:81 /29:9 /30:1 /31:0 /32:9 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 1356 2208 bellsouth.net, inc. 11492 1210 1228 Cable One 2386 1137 1439 AT&T Data Communications Serv 18566 1025 1044 Covad Communications 4755 989 1642 Videsh Sanchar Nigam Ltd. Aut 9583 966 1112 Sify Limited 6478 950 951 AT&T Worldnet Services 7011 943 1051 Citizens Utilities 6298 941 956 Cox Communicatons 17488 904 1078 Hathway IP Over Cable Interne Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 8:109 12:2058 13:1 15:22 16:3 17:5 18:13 20:35 24:1077 25:1 32:62 33:3 38:436 40:93 41:642 43:1 44:2 47:12 52:3 55:4 56:3 57:23 58:514 59:478 60:442 61:996 62:1116 63:1946 64:3324 65:2424 66:3692 67:1209 68:695 69:2245 70:676 71:126 72:1815 73:5 74:994 75:220 76:297 77:704 78:696 79:187 80:909 81:843 82:569 83:390 84:568 85:1019 86:421 87:677 88:314 89:1251 90:11 91:1283 92:180 93:517 96:32 97:23 98:191 99:3 111:1 114:20 116:661 117:327 118:141 119:445 120:57 121:532 122:780 123:340 124:847 125:1139 128:324 129:202 130:131 131:402 132:66 133:9 134:177 135:33 136:219 137:91 138:152 139:71 140:497 141:99 142:401 143:324 144:351 145:51 146:364 147:153 148:506 149:191 150:130 151:193 152:141 153:135 154:10 155:249 156:174 157:272 158:168 159:221 160:256 161:114 162:231 163:187 164:525 165:446 166:317 167:328 168:612 169:131 170:428 171:29 172:10 189:189 190:2068 192:5804 193:4100 194:3209 195:2464 196:1071 198:3748 199:3259 200:5577 201:1420 202:7617 203:7893 204:3973 205:2087 206:2397 207:2749 208:3353 209:3441 210:2520 211:1023 212:1393 213:1623 214:164 215:49 216:4372 217:1188 218:346 219:414 220:1077 221:464 222:306 End of report