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 05 Sep, 2009 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 294331 Prefixes after maximum aggregation: 139398 Deaggregation factor: 2.11 Unique aggregates announced to Internet: 147041 Total ASes present in the Internet Routing Table: 32126 Prefixes per ASN: 9.16 Origin-only ASes present in the Internet Routing Table: 27940 Origin ASes announcing only one prefix: 13641 Transit ASes present in the Internet Routing Table: 4186 Transit-only ASes present in the Internet Routing Table: 104 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 24 Max AS path prepend of ASN (12026) 22 Prefixes from unregistered ASNs in the Routing Table: 407 Unregistered ASNs in the Routing Table: 114 Number of 32-bit ASNs allocated by the RIRs: 260 Prefixes from 32-bit ASNs in the Routing Table: 105 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 319 Number of addresses announced to Internet: 2101706432 Equivalent to 125 /8s, 69 /16s and 126 /24s Percentage of available address space announced: 56.7 Percentage of allocated address space announced: 64.9 Percentage of available address space allocated: 87.3 Percentage of address space in use by end-sites: 78.8 Total number of prefixes smaller than registry allocations: 140659 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 70157 Total APNIC prefixes after maximum aggregation: 24968 APNIC Deaggregation factor: 2.81 Prefixes being announced from the APNIC address blocks: 69597 Unique aggregates announced from the APNIC address blocks: 31670 APNIC Region origin ASes present in the Internet Routing Table: 3774 APNIC Prefixes per ASN: 18.44 APNIC Region origin ASes announcing only one prefix: 1035 APNIC Region transit ASes present in the Internet Routing Table: 580 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 493030848 Equivalent to 29 /8s, 99 /16s and 13 /24s Percentage of available APNIC address space announced: 84.0 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 APNIC Address Blocks 43/8, 58/8, 59/8, 60/8, 61/8, 110/8, 111/8, 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, 175/8, 180/8, 182/8, 183/8, 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: 124764 Total ARIN prefixes after maximum aggregation: 66482 ARIN Deaggregation factor: 1.88 Prefixes being announced from the ARIN address blocks: 125341 Unique aggregates announced from the ARIN address blocks: 52721 ARIN Region origin ASes present in the Internet Routing Table: 13211 ARIN Prefixes per ASN: 9.49 ARIN Region origin ASes announcing only one prefix: 5107 ARIN Region transit ASes present in the Internet Routing Table: 1297 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 24 Number of ARIN addresses announced to Internet: 1013346368 Equivalent to 60 /8s, 102 /16s and 112 /24s Percentage of available ARIN address space announced: 88.8 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 53248-55295 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 52/8, 54/8, 55/8, 56/8, 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, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 67698 Total RIPE prefixes after maximum aggregation: 39917 RIPE Deaggregation factor: 1.70 Prefixes being announced from the RIPE address blocks: 67311 Unique aggregates announced from the RIPE address blocks: 45605 RIPE Region origin ASes present in the Internet Routing Table: 13456 RIPE Prefixes per ASN: 5.00 RIPE Region origin ASes announcing only one prefix: 7031 RIPE Region transit ASes present in the Internet Routing Table: 2002 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 21 Number of RIPE addresses announced to Internet: 499964864 Equivalent to 29 /8s, 204 /16s and 219 /24s Percentage of available RIPE address space announced: 99.3 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, 47104-52223 RIPE Address Blocks 25/8, 51/8, 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, 109/8, 178/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 25342 Total LACNIC prefixes after maximum aggregation: 6213 LACNIC Deaggregation factor: 4.08 Prefixes being announced from the LACNIC address blocks: 25334 Unique aggregates announced from the LACNIC address blocks: 14125 LACNIC Region origin ASes present in the Internet Routing Table: 1174 LACNIC Prefixes per ASN: 21.58 LACNIC Region origin ASes announcing only one prefix: 380 LACNIC Region transit ASes present in the Internet Routing Table: 192 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 22 Number of LACNIC addresses announced to Internet: 73761280 Equivalent to 4 /8s, 101 /16s and 130 /24s Percentage of available LACNIC address space announced: 73.3 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247 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: 6028 Total AfriNIC prefixes after maximum aggregation: 1570 AfriNIC Deaggregation factor: 3.84 Prefixes being announced from the AfriNIC address blocks: 6429 Unique aggregates announced from the AfriNIC address blocks: 2659 AfriNIC Region origin ASes present in the Internet Routing Table: 313 AfriNIC Prefixes per ASN: 20.54 AfriNIC Region origin ASes announcing only one prefix: 88 AfriNIC Region transit ASes present in the Internet Routing Table: 67 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 20185600 Equivalent to 1 /8s, 52 /16s and 2 /24s Percentage of available AfriNIC address space announced: 60.2 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 1723 6982 427 Korea Telecom (KIX) 17488 1553 140 103 Hathway IP Over Cable Interne 4755 1231 292 141 TATA Communications formerly 9583 1095 87 534 Sify Limited 4134 1001 18165 390 CHINANET-BACKBONE 18101 952 201 31 Reliance Infocom Ltd Internet 7545 822 198 102 TPG Internet Pty Ltd 9829 798 625 18 BSNL National Internet Backbo 23577 770 33 654 Korea Telecom (ATM-MPLS) 4808 767 1531 182 CNCGROUP IP network: China169 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 4178 3610 312 bellsouth.net, inc. 4323 1924 1049 387 Time Warner Telecom 1785 1736 714 137 PaeTec Communications, Inc. 7018 1495 5908 1059 AT&T WorldNet Services 20115 1472 1475 683 Charter Communications 6478 1396 281 260 AT&T Worldnet Services 2386 1289 655 936 AT&T Data Communications Serv 3356 1218 10980 440 Level 3 Communications, LLC 22773 1095 2604 66 Cox Communications, Inc. 11492 1092 208 12 Cable One 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 30890 487 92 197 Evolva Telecom 12479 477 578 6 Uni2 Autonomous System 3292 458 1904 395 TDC Tele Danmark 702 426 1821 344 UUNET - Commercial IP service 35805 385 40 5 United Telecom of Georgia 9198 368 138 12 Kazakhtelecom Data Network Ad 8866 358 109 22 Bulgarian Telecommunication C 3320 353 7067 303 Deutsche Telekom AG 3301 347 1412 308 TeliaNet Sweden 3215 344 3081 109 France Telecom Transpac 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 1477 2898 242 UniNet S.A. de C.V. 10620 1009 226 99 TVCABLE BOGOTA 28573 697 607 61 NET Servicos de Comunicao S.A 7303 635 336 93 Telecom Argentina Stet-France 22047 542 302 14 VTR PUNTO NET S.A. 11830 476 310 58 Instituto Costarricense de El 11172 441 99 70 Servicios Alestra S.A de C.V 14117 435 29 11 Telefonica del Sur S.A. 6471 421 96 31 ENTEL CHILE S.A. 7738 419 858 29 Telecomunicacoes da Bahia S.A 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 8452 989 188 7 TEDATA 24863 884 94 60 LINKdotNET AS number 20858 296 34 6 EgyNet 3741 274 856 235 The Internet Solution 2018 202 180 142 Tertiary Education Network 6713 175 166 16 Itissalat Al-MAGHRIB 29571 139 14 6 Ci Telecom Autonomous system 5536 122 8 13 Internet Egypt Network 5713 116 508 67 Telkom SA Ltd 33776 115 7 11 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 4178 3610 312 bellsouth.net, inc. 4323 1924 1049 387 Time Warner Telecom 1785 1736 714 137 PaeTec Communications, Inc. 4766 1723 6982 427 Korea Telecom (KIX) 17488 1553 140 103 Hathway IP Over Cable Interne 7018 1495 5908 1059 AT&T WorldNet Services 8151 1477 2898 242 UniNet S.A. de C.V. 20115 1472 1475 683 Charter Communications 6478 1396 281 260 AT&T Worldnet Services 2386 1289 655 936 AT&T Data Communications Serv Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 1785 1736 1599 PaeTec Communications, Inc. 4323 1924 1537 Time Warner Telecom 17488 1553 1450 Hathway IP Over Cable Interne 4766 1723 1296 Korea Telecom (KIX) 8151 1477 1235 UniNet S.A. de C.V. 6478 1396 1136 AT&T Worldnet Services 4755 1231 1090 TATA Communications formerly 11492 1092 1080 Cable One 18566 1062 1052 Covad Communications 22773 1095 1029 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 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 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 32326 UNALLOCATED 12.40.49.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 41.223.92.0/22 36936 >>UNKNOWN<< 41.223.176.0/22 36981 >>UNKNOWN<< 41.223.189.0/24 26452 Local Communications Networks 43.245.0.0/16 7502 Internetwork Kyoto 43.245.96.0/20 7502 Internetwork Kyoto 43.245.112.0/20 7502 Internetwork Kyoto 43.245.192.0/20 7502 Internetwork Kyoto 43.245.208.0/20 7502 Internetwork Kyoto 43.245.224.0/20 7502 Internetwork Kyoto 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 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 /9:10 /10:25 /11:62 /12:168 /13:351 /14:624 /15:1181 /16:10644 /17:4824 /18:8362 /19:17349 /20:20714 /21:20551 /22:26629 /23:26406 /24:153628 /25:946 /26:1077 /27:583 /28:153 /29:8 /30:9 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2708 4178 bellsouth.net, inc. 4766 1408 1723 Korea Telecom (KIX) 17488 1299 1553 Hathway IP Over Cable Interne 1785 1206 1736 PaeTec Communications, Inc. 18566 1043 1062 Covad Communications 11492 1021 1092 Cable One 4323 968 1924 Time Warner Telecom 9583 947 1095 Sify Limited 10620 915 1009 TVCABLE BOGOTA 8452 913 989 TEDATA Complete listing at http://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:14 8:213 12:2137 13:7 15:21 16:3 17:5 20:35 24:1117 32:52 34:2 38:598 40:97 41:1730 43:1 44:2 47:20 52:6 55:2 56:2 57:25 58:595 59:607 60:461 61:958 62:1074 63:2013 64:3631 65:2392 66:3438 67:1773 68:946 69:2733 70:557 71:163 72:1682 73:2 74:1732 75:179 76:322 77:861 78:577 79:375 80:913 81:819 82:528 83:426 84:638 85:1042 86:378 87:674 88:369 89:1472 90:52 91:2520 92:397 93:1134 94:1155 95:912 96:166 97:268 98:271 99:30 109:1 110:184 111:398 112:128 113:151 114:243 115:306 116:1135 117:565 118:322 119:774 120:122 121:652 122:1247 123:761 124:1067 125:1356 128:223 129:219 130:129 131:420 132:75 133:9 134:174 135:42 136:225 137:161 138:171 139:84 140:442 141:125 142:385 143:332 144:385 145:49 146:390 147:157 148:530 149:213 150:205 151:186 152:210 153:153 154:2 155:279 156:167 157:305 158:112 159:349 160:291 161:164 162:270 163:159 164:276 165:526 166:474 167:365 168:708 169:167 170:481 171:42 172:2 173:407 174:332 175:1 178:1 180:17 182:1 186:141 187:150 188:761 189:580 190:3026 192:5766 193:4251 194:3284 195:2742 196:1126 198:3543 199:3356 200:5178 201:1306 202:7783 203:8285 204:3890 205:2195 206:2391 207:2739 208:3948 209:3406 210:2543 211:1107 212:1602 213:1649 214:174 215:32 216:4292 217:1334 218:411 219:414 220:1110 221:462 222:323 End of report