This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG, TRNOG, CaribNOG and the RIPE Routing Working Group. Daily listings are sent to bgp-stats@lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz@gmail.com>. Routing Table Report 04:00 +10GMT Sat 08 Sep, 2012 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 425836 Prefixes after maximum aggregation: 178207 Deaggregation factor: 2.39 Unique aggregates announced to Internet: 207327 Total ASes present in the Internet Routing Table: 42041 Prefixes per ASN: 10.13 Origin-only ASes present in the Internet Routing Table: 33589 Origin ASes announcing only one prefix: 15753 Transit ASes present in the Internet Routing Table: 5599 Transit-only ASes present in the Internet Routing Table: 135 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 32 Max AS path prepend of ASN ( 48687) 24 Prefixes from unregistered ASNs in the Routing Table: 715 Unregistered ASNs in the Routing Table: 248 Number of 32-bit ASNs allocated by the RIRs: 3235 Number of 32-bit ASNs visible in the Routing Table: 2853 Prefixes from 32-bit ASNs in the Routing Table: 7496 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 184 Number of addresses announced to Internet: 2593144332 Equivalent to 154 /8s, 144 /16s and 62 /24s Percentage of available address space announced: 70.0 Percentage of allocated address space announced: 70.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 93.5 Total number of prefixes smaller than registry allocations: 150194 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 102226 Total APNIC prefixes after maximum aggregation: 32992 APNIC Deaggregation factor: 3.10 Prefixes being announced from the APNIC address blocks: 102840 Unique aggregates announced from the APNIC address blocks: 42607 APNIC Region origin ASes present in the Internet Routing Table: 4755 APNIC Prefixes per ASN: 21.63 APNIC Region origin ASes announcing only one prefix: 1245 APNIC Region transit ASes present in the Internet Routing Table: 763 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 297 Number of APNIC addresses announced to Internet: 707762048 Equivalent to 42 /8s, 47 /16s and 151 /24s Percentage of available APNIC address space announced: 82.7 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 131072-133119 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 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, 133/8, 150/8, 153/8, 163/8, 171/8, 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, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 154235 Total ARIN prefixes after maximum aggregation: 77982 ARIN Deaggregation factor: 1.98 Prefixes being announced from the ARIN address blocks: 155222 Unique aggregates announced from the ARIN address blocks: 69088 ARIN Region origin ASes present in the Internet Routing Table: 15222 ARIN Prefixes per ASN: 10.20 ARIN Region origin ASes announcing only one prefix: 5736 ARIN Region transit ASes present in the Internet Routing Table: 1595 Average ARIN Region AS path length visible: 4.1 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 17 Number of ARIN addresses announced to Internet: 1083362176 Equivalent to 64 /8s, 146 /16s and 203 /24s Percentage of available ARIN address space announced: 57.3 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 53248-55295, 393216-394239 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, 23/8, 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, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 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: 108148 Total RIPE prefixes after maximum aggregation: 56530 RIPE Deaggregation factor: 1.91 Prefixes being announced from the RIPE address blocks: 110545 Unique aggregates announced from the RIPE address blocks: 69820 RIPE Region origin ASes present in the Internet Routing Table: 16841 RIPE Prefixes per ASN: 6.56 RIPE Region origin ASes announcing only one prefix: 8164 RIPE Region transit ASes present in the Internet Routing Table: 2710 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1860 Number of RIPE addresses announced to Internet: 644425956 Equivalent to 38 /8s, 105 /16s and 40 /24s Percentage of available RIPE address space announced: 93.7 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, 47104-52223, 56320-58367 59392-61439, 196608-199679 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 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, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 43718 Total LACNIC prefixes after maximum aggregation: 8443 LACNIC Deaggregation factor: 5.18 Prefixes being announced from the LACNIC address blocks: 46692 Unique aggregates announced from the LACNIC address blocks: 22215 LACNIC Region origin ASes present in the Internet Routing Table: 1642 LACNIC Prefixes per ASN: 28.44 LACNIC Region origin ASes announcing only one prefix: 435 LACNIC Region transit ASes present in the Internet Routing Table: 320 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 25 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 673 Number of LACNIC addresses announced to Internet: 115436584 Equivalent to 6 /8s, 225 /16s and 108 /24s Percentage of available LACNIC address space announced: 68.8 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 9877 Total AfriNIC prefixes after maximum aggregation: 2203 AfriNIC Deaggregation factor: 4.48 Prefixes being announced from the AfriNIC address blocks: 10353 Unique aggregates announced from the AfriNIC address blocks: 3445 AfriNIC Region origin ASes present in the Internet Routing Table: 560 AfriNIC Prefixes per ASN: 18.49 AfriNIC Region origin ASes announcing only one prefix: 173 AfriNIC Region transit ASes present in the Internet Routing Table: 125 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6 Number of AfriNIC addresses announced to Internet: 41688576 Equivalent to 2 /8s, 124 /16s and 30 /24s Percentage of available AfriNIC address space announced: 41.4 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2950 11125 1418 Korea Telecom (KIX) 17974 2342 702 54 PT TELEKOMUNIKASI INDONESIA 7545 1752 301 86 TPG Internet Pty Ltd 4755 1618 387 162 TATA Communications formerly 9829 1322 1101 31 BSNL National Internet Backbo 9583 1179 87 508 Sify Limited 4808 1121 2049 319 CNCGROUP IP network: China169 7552 1107 1062 11 Vietel Corporation 24560 1040 386 160 Bharti Airtel Ltd., Telemedia 9498 1002 310 73 BHARTI Airtel Ltd. Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7029 3456 990 154 Windstream Communications Inc 6389 3334 3736 184 bellsouth.net, inc. 18566 2085 382 180 Covad Communications 1785 1912 678 127 PaeTec Communications, Inc. 22773 1888 2931 129 Cox Communications, Inc. 20115 1658 1578 614 Charter Communications 4323 1580 1026 385 Time Warner Telecom 30036 1417 279 746 Mediacom Communications Corp 7018 1260 10316 831 AT&T WorldNet Services 11492 1197 217 343 Cable One Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8402 1661 544 16 Corbina telecom 2118 1401 97 14 EUnet/RELCOM Autonomous Syste 15557 1221 2247 55 LDCOM NETWORKS 12479 830 765 82 Uni2 Autonomous System 34984 756 205 179 BILISIM TELEKOM 6830 723 2313 447 UPC Distribution Services 31148 713 37 9 FreeNet ISP 20940 711 227 549 Akamai Technologies European 13188 702 100 9 Educational Network 58113 616 69 362 LIR DATACENTER TELECOM SRL Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 28573 2141 1248 54 NET Servicos de Comunicao S.A 10620 2132 362 221 TVCABLE BOGOTA 8151 1570 3032 343 UniNet S.A. de C.V. 7303 1564 1034 199 Telecom Argentina Stet-France 6503 1535 451 69 AVANTEL, S.A. 6458 792 81 15 GUATEL 27947 721 74 94 Telconet S.A 3816 638 262 95 Empresa Nacional de Telecomun 11172 593 85 69 Servicios Alestra S.A de C.V 14420 580 83 105 CORPORACION NACIONAL DE TELEC Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 878 275 36 LINKdotNET AS number 8452 834 958 13 TEDATA 36998 776 48 3 MOBITEL 6713 517 650 19 Itissalat Al-MAGHRIB 24835 269 80 8 RAYA Telecom - Egypt 3741 262 904 223 The Internet Solution 33776 231 13 11 Starcomms Nigeria Limited 12258 194 28 66 Vodacom Internet Company 15706 193 32 6 Sudatel Internet Exchange Aut 29975 191 667 21 Vodacom Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 7029 3456 990 154 Windstream Communications Inc 6389 3334 3736 184 bellsouth.net, inc. 4766 2950 11125 1418 Korea Telecom (KIX) 17974 2342 702 54 PT TELEKOMUNIKASI INDONESIA 28573 2141 1248 54 NET Servicos de Comunicao S.A 10620 2132 362 221 TVCABLE BOGOTA 18566 2085 382 180 Covad Communications 1785 1912 678 127 PaeTec Communications, Inc. 22773 1888 2931 129 Cox Communications, Inc. 7545 1752 301 86 TPG Internet Pty Ltd Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 6389 3334 3150 bellsouth.net, inc. 17974 2342 2288 PT TELEKOMUNIKASI INDONESIA 28573 2141 2087 NET Servicos de Comunicao S.A 10620 2132 1911 TVCABLE BOGOTA 18566 2085 1905 Covad Communications 1785 1912 1785 PaeTec Communications, Inc. 22773 1888 1759 Cox Communications, Inc. 7545 1752 1666 TPG Internet Pty Ltd 8402 1661 1645 Corbina telecom 4766 2950 1532 Korea Telecom (KIX) Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 59414 UNALLOCATED 5.102.144.0/21 15576 Nextra backbone in D 59395 UNALLOCATED 5.133.16.0/21 12658 Dexterity Networks L 59407 UNALLOCATED 5.134.16.0/21 51167 Giga-Hosting GmbH 59521 UNALLOCATED 5.134.192.0/21 29518 Labs2 59441 UNALLOCATED 5.144.128.0/21 50810 Mobin Net Communicat 59581 UNALLOCATED 5.149.8.0/21 25577 C4L main AS 59457 UNALLOCATED 5.149.64.0/24 35567 DASTO semtel d.o.o. 59457 UNALLOCATED 5.149.65.0/24 35567 DASTO semtel d.o.o. 59457 UNALLOCATED 5.149.66.0/24 35567 DASTO semtel d.o.o. 59457 UNALLOCATED 5.149.67.0/24 35567 DASTO semtel d.o.o. Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 5.206.240.0/20 57332 TOM-NET s.c. Dariusz Koper, R 5.226.64.0/18 12741 INTERNETIA Commercial Autonom 5.226.136.0/21 25369 4u servers 5.228.0.0/16 42610 RIPE Network Coordination Cen 14.192.0.0/22 45464 Room 201, TGU Bldg 14.192.4.0/22 45464 Room 201, TGU Bldg 14.192.8.0/22 45464 Room 201, TGU Bldg 14.192.12.0/22 45464 Room 201, TGU Bldg 14.192.16.0/22 45464 Room 201, TGU Bldg 14.192.20.0/22 45464 Room 201, TGU Bldg Complete listing at http://thyme.rand.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 /8:18 /9:14 /10:29 /11:84 /12:237 /13:475 /14:841 /15:1541 /16:12381 /17:6415 /18:10842 /19:21044 /20:30202 /21:32106 /22:42325 /23:39848 /24:223276 /25:1364 /26:1592 /27:921 /28:175 /29:64 /30:18 /31:0 /32:24 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 2812 3456 Windstream Communications Inc 18566 2035 2085 Covad Communications 6389 1849 3334 bellsouth.net, inc. 8402 1384 1661 Corbina telecom 30036 1350 1417 Mediacom Communications Corp 22773 1231 1888 Cox Communications, Inc. 15557 1165 1221 LDCOM NETWORKS 11492 1160 1197 Cable One 6503 1053 1535 AVANTEL, S.A. 1785 1013 1912 PaeTec Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:581 2:783 3:1 4:13 5:428 6:3 8:455 12:2001 13:1 14:663 15:11 16:3 17:6 20:27 23:203 24:1824 27:1317 31:1015 32:56 33:2 34:2 36:7 37:759 38:828 39:2 40:132 41:3133 42:158 44:3 46:1527 47:2 49:468 50:592 52:13 54:17 55:6 56:1 57:31 58:989 59:528 60:240 61:1295 62:1002 63:2003 64:4262 65:2241 66:4494 67:2051 68:1169 69:3194 70:985 71:522 72:1870 74:2583 75:495 76:323 77:951 78:941 79:488 80:1265 81:956 82:634 83:531 84:626 85:1157 86:806 87:924 88:350 89:1789 90:303 91:5183 92:578 93:1494 94:1635 95:1271 96:416 97:318 98:893 99:39 100:23 101:260 103:1493 105:512 106:118 107:198 108:444 109:1921 110:794 111:957 112:446 113:682 114:655 115:856 116:825 117:733 118:946 119:1261 120:299 121:691 122:1646 123:1170 124:1352 125:1270 128:549 129:186 130:282 131:631 132:302 133:22 134:251 135:61 136:217 137:238 138:342 139:187 140:502 141:280 142:486 143:366 144:487 145:80 146:514 147:268 148:758 149:323 150:157 151:177 152:451 153:182 154:20 155:420 156:222 157:379 158:184 159:642 160:343 161:414 162:408 163:190 164:693 165:416 166:560 167:544 168:959 169:125 170:905 171:149 172:6 173:1721 174:628 175:445 176:575 177:1102 178:1659 180:1344 181:134 182:1043 183:230 184:597 186:2195 187:1244 188:1529 189:1586 190:6094 192:6024 193:5720 194:4560 195:3447 196:1215 197:220 198:3776 199:4975 200:5994 201:1969 202:8712 203:8698 204:4419 205:2542 206:2752 207:2875 208:4057 209:3668 210:2833 211:1536 212:2025 213:1809 214:893 215:88 216:5140 217:1553 218:548 219:316 220:1239 221:532 222:339 223:378 End of report