Routing Table Report 04:00 +10GMT Tue 08 Feb, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 344962 Prefixes after maximum aggregation: 155574 Deaggregation factor: 2.22 Unique aggregates announced to Internet: 170680 Total ASes present in the Internet Routing Table: 35799 Prefixes per ASN: 9.64 Origin-only ASes present in the Internet Routing Table: 30868 Origin ASes announcing only one prefix: 14949 Transit ASes present in the Internet Routing Table: 4931 Transit-only ASes present in the Internet Routing Table: 119 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 31 Max AS path prepend of ASN (36992) 29 Prefixes from unregistered ASNs in the Routing Table: 425 Unregistered ASNs in the Routing Table: 128 Number of 32-bit ASNs allocated by the RIRs: 1092 Prefixes from 32-bit ASNs in the Routing Table: 1 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 197 Number of addresses announced to Internet: 2414285632 Equivalent to 143 /8s, 231 /16s and 19 /24s Percentage of available address space announced: 65.1 Percentage of allocated address space announced: 65.1 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 88.2 Total number of prefixes smaller than registry allocations: 142526 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 85285 Total APNIC prefixes after maximum aggregation: 28888 APNIC Deaggregation factor: 2.95 Prefixes being announced from the APNIC address blocks: 81975 Unique aggregates announced from the APNIC address blocks: 35690 APNIC Region origin ASes present in the Internet Routing Table: 4321 APNIC Prefixes per ASN: 18.97 APNIC Region origin ASes announcing only one prefix: 1213 APNIC Region transit ASes present in the Internet Routing Table: 690 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 20 Number of APNIC addresses announced to Internet: 586910240 Equivalent to 34 /8s, 251 /16s and 138 /24s Percentage of available APNIC address space announced: 74.4 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 55296-56319, 131072-132095 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, 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: 138728 Total ARIN prefixes after maximum aggregation: 71080 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 109538 Unique aggregates announced from the ARIN address blocks: 44709 ARIN Region origin ASes present in the Internet Routing Table: 14175 ARIN Prefixes per ASN: 7.73 ARIN Region origin ASes announcing only one prefix: 5406 ARIN Region transit ASes present in the Internet Routing Table: 1469 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 752240000 Equivalent to 44 /8s, 214 /16s and 69 /24s Percentage of available ARIN address space announced: 62.3 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, 47/8, 48/8, 50/8, 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, 100/8, 104/8, 107/8, 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: 81671 Total RIPE prefixes after maximum aggregation: 46318 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 74995 Unique aggregates announced from the RIPE address blocks: 48732 RIPE Region origin ASes present in the Internet Routing Table: 15266 RIPE Prefixes per ASN: 4.91 RIPE Region origin ASes announcing only one prefix: 7766 RIPE Region transit ASes present in the Internet Routing Table: 2362 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 457576768 Equivalent to 27 /8s, 70 /16s and 17 /24s Percentage of available RIPE address space announced: 73.7 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 196608-198655 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, 176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 31618 Total LACNIC prefixes after maximum aggregation: 7340 LACNIC Deaggregation factor: 4.31 Prefixes being announced from the LACNIC address blocks: 30366 Unique aggregates announced from the LACNIC address blocks: 15896 LACNIC Region origin ASes present in the Internet Routing Table: 1425 LACNIC Prefixes per ASN: 21.31 LACNIC Region origin ASes announcing only one prefix: 431 LACNIC Region transit ASes present in the Internet Routing Table: 254 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 80416128 Equivalent to 4 /8s, 203 /16s and 13 /24s Percentage of available LACNIC address space announced: 53.3 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, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 7441 Total AfriNIC prefixes after maximum aggregation: 1837 AfriNIC Deaggregation factor: 4.05 Prefixes being announced from the AfriNIC address blocks: 5855 Unique aggregates announced from the AfriNIC address blocks: 1806 AfriNIC Region origin ASes present in the Internet Routing Table: 434 AfriNIC Prefixes per ASN: 13.49 AfriNIC Region origin ASes announcing only one prefix: 132 AfriNIC Region transit ASes present in the Internet Routing Table: 94 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 21879296 Equivalent to 1 /8s, 77 /16s and 218 /24s Percentage of available AfriNIC address space announced: 32.6 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 1933 9485 528 Korea Telecom (KIX) 7545 1630 301 81 TPG Internet Pty Ltd 4755 1409 637 161 TATA Communications formerly 17974 1394 467 27 PT TELEKOMUNIKASI INDONESIA 24560 1099 318 182 Bharti Airtel Ltd., Telemedia 9583 1044 76 487 Sify Limited 4808 1034 2130 292 CNCGROUP IP network: China169 17488 952 162 104 Hathway IP Over Cable Interne 18101 928 117 144 Reliance Infocom Ltd Internet 9829 897 763 42 BSNL National Internet Backbo 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 6389 3705 3855 265 bellsouth.net, inc. 4323 2624 1109 403 Time Warner Telecom 19262 1842 4951 283 Verizon Global Networks 1785 1785 697 132 PaeTec Communications, Inc. 20115 1522 1532 642 Charter Communications 6478 1482 291 81 AT&T Worldnet Services 7018 1355 6674 872 AT&T WorldNet Services 2386 1295 553 933 AT&T Data Communications Serv 22773 1278 2865 78 Cox Communications, Inc. 11492 1264 235 79 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 6830 515 1764 319 UPC Distribution Services 9198 464 266 14 Kazakhtelecom Data Network Ad 34984 456 97 137 BILISIM TELEKOM 3292 447 2011 390 TDC Tele Danmark 8866 440 133 23 Bulgarian Telecommunication C 3320 407 7620 355 Deutsche Telekom AG 8551 403 353 46 Bezeq International 702 397 1817 310 UUNET - Commercial IP service 20940 394 91 303 Akamai Technologies European 3301 384 1823 342 TeliaNet Sweden 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 10620 1374 255 164 TVCABLE BOGOTA 8151 1334 2647 359 UniNet S.A. de C.V. 28573 1243 961 82 NET Servicos de Comunicao S.A 6503 1186 355 78 AVANTEL, S.A. 7303 887 447 142 Telecom Argentina Stet-France 14420 626 56 94 CORPORACION NACIONAL DE TELEC 22047 544 310 15 VTR PUNTO NET S.A. 3816 499 220 94 Empresa Nacional de Telecomun 7738 478 922 30 Telecomunicacoes da Bahia S.A 14117 457 34 32 Telefonica del Sur S.A. 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 8452 792 445 11 TEDATA 24863 762 147 39 LINKdotNET AS number 36992 642 329 19 Etisalat MISR 3741 264 987 226 The Internet Solution 24835 218 78 10 RAYA Telecom - Egypt 6713 203 199 12 Itissalat Al-MAGHRIB 33776 194 12 15 Starcomms Nigeria Limited 29571 192 17 11 Ci Telecom Autonomous system 16637 146 422 83 MTN Network Solutions 29975 132 490 17 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 6389 3705 3855 265 bellsouth.net, inc. 4323 2624 1109 403 Time Warner Telecom 4766 1933 9485 528 Korea Telecom (KIX) 19262 1842 4951 283 Verizon Global Networks 1785 1785 697 132 PaeTec Communications, Inc. 7545 1630 301 81 TPG Internet Pty Ltd 20115 1522 1532 642 Charter Communications 6478 1482 291 81 AT&T Worldnet Services 4755 1409 637 161 TATA Communications formerly 17974 1394 467 27 PT TELEKOMUNIKASI INDONESIA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 2624 2221 Time Warner Telecom 1785 1785 1653 PaeTec Communications, Inc. 19262 1842 1559 Verizon Global Networks 7545 1630 1549 TPG Internet Pty Ltd 4766 1933 1405 Korea Telecom (KIX) 6478 1482 1401 AT&T Worldnet Services 17974 1394 1367 PT TELEKOMUNIKASI INDONESIA 4755 1409 1248 TATA Communications formerly 10620 1374 1210 TVCABLE BOGOTA 22773 1278 1200 Cox Communications, Inc. Complete listing at http://thyme.rand.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 4323 Time Warner Telecom 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 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 12.39.155.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 5.0.0.0/16 12654 RIPE NCC RIS Project 5.1.0.0/21 12654 RIPE NCC RIS Project 5.1.24.0/24 12654 RIPE NCC RIS Project 24.129.192.0/19 7922 Continental Cablevision 37.0.0.0/16 12654 RIPE NCC RIS Project 37.1.0.0/21 12654 RIPE NCC RIS Project 37.1.24.0/24 12654 RIPE NCC RIS Project 39.0.0.0/8 237 Merit Network 41.222.79.0/24 36938 >>UNKNOWN<< 41.223.92.0/22 36936 >>UNKNOWN<< 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 /8:21 /9:11 /10:26 /11:72 /12:221 /13:445 /14:772 /15:1371 /16:11544 /17:5635 /18:9308 /19:18814 /20:24297 /21:24688 /22:32931 /23:31508 /24:180451 /25:992 /26:1073 /27:588 /28:167 /29:16 /30:3 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2284 3705 bellsouth.net, inc. 6478 1436 1482 AT&T Worldnet Services 4323 1412 2624 Time Warner Telecom 10620 1265 1374 TVCABLE BOGOTA 11492 1221 1264 Cable One 18566 1160 1182 Covad Communications 7011 1062 1163 Citizens Utilities 1785 1054 1785 PaeTec Communications, Inc. 6503 964 1186 AVANTEL, S.A. 19262 954 1842 Verizon Global Networks Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:171 2:44 4:13 5:1 8:333 12:2026 13:1 14:403 15:15 16:3 17:8 20:9 23:1 24:1469 27:575 32:61 33:5 34:2 37:1 38:697 40:101 41:2276 44:3 46:553 47:5 49:144 50:82 52:12 55:3 56:2 57:31 58:866 59:482 60:391 61:1116 62:1093 63:1927 64:3753 65:2350 66:4127 67:1759 68:1005 69:2883 70:717 71:396 72:1995 73:1 74:2323 75:292 76:342 77:865 78:706 79:443 80:1044 81:824 82:532 83:470 84:645 85:1046 86:536 87:740 88:357 89:1589 90:156 91:3467 92:493 93:1044 94:1201 95:799 96:416 97:250 98:786 99:33 101:27 107:3 108:86 109:901 110:471 111:693 112:312 113:357 114:497 115:642 116:922 117:675 118:649 119:1011 120:240 121:702 122:1634 123:1060 124:1271 125:1216 128:264 129:153 130:172 131:568 132:110 133:20 134:217 135:49 136:216 137:147 138:291 139:120 140:490 141:197 142:358 143:379 144:482 145:51 146:429 147:195 148:628 149:274 150:151 151:230 152:306 153:177 154:3 155:347 156:176 157:342 158:128 159:379 160:315 161:204 162:278 163:160 164:486 165:338 166:482 167:420 168:738 169:152 170:752 171:66 172:2 173:1276 174:521 175:314 176:1 177:12 178:781 180:779 182:340 183:250 184:208 186:985 187:798 188:911 189:1051 190:4375 192:5788 193:4794 194:3505 195:2942 196:1178 197:3 198:3576 199:3764 200:5576 201:1577 202:8263 203:8427 204:4100 205:2343 206:2631 207:3082 208:3890 209:3506 210:2643 211:1331 212:1882 213:1722 214:757 215:62 216:4800 217:1617 218:527 219:375 220:1204 221:449 222:319 223:95 End of report