Routing Table Report 00:00 GMT Wed 19 Oct, 2011 NB: RouteViews data includes iBGP information from some ASNs. Treat the information provided below appropriately. Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/rviews/ Analysis Summary ---------------- BGP routing table entries examined: 381529 Prefixes after maximum aggregation: 170767 Deaggregation factor: 2.23 Unique aggregates announced to Internet: 185299 Total ASes present in the Internet Routing Table: 39099 Prefixes per ASN: 9.76 Origin-only ASes present in the Internet Routing Table: 32345 Origin ASes announcing only one prefix: 15506 Transit ASes present in the Internet Routing Table: 5232 Transit-only ASes present in the Internet Routing Table: 137 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 33 Max AS path prepend of ASN (51310) 25 Prefixes from unregistered ASNs in the Routing Table: 4969 Unregistered ASNs in the Routing Table: 821 Number of 32-bit ASNs allocated by the RIRs: 1866 Number of 32-bit ASNs visible in the Routing Table: 1522 Prefixes from 32-bit ASNs in the Routing Table: 3481 Special use prefixes present in the Routing Table: 89 Prefixes being announced from unallocated address space: 89 Number of addresses announced to Internet: 2484924425 Equivalent to 148 /8s, 28 /16s and 240 /24s Percentage of available address space announced: 67.0 Percentage of allocated address space announced: 67.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.5 Total number of prefixes smaller than registry allocations: 159320 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 92536 Total APNIC prefixes after maximum aggregation: 29778 APNIC Deaggregation factor: 3.11 Prefixes being announced from the APNIC address blocks: 89091 Unique aggregates announced from the APNIC address blocks: 37949 APNIC Region origin ASes present in the Internet Routing Table: 4566 APNIC Prefixes per ASN: 19.51 APNIC Region origin ASes announcing only one prefix: 1269 APNIC Region transit ASes present in the Internet Routing Table: 717 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 94 Number of APNIC addresses announced to Internet: 628733696 Equivalent to 37 /8s, 121 /16s and 183 /24s Percentage of available APNIC address space announced: 79.7 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 131072-132095, 132096-133119 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, 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: 148476 Total ARIN prefixes after maximum aggregation: 76479 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 120146 Unique aggregates announced from the ARIN address blocks: 47825 ARIN Region origin ASes present in the Internet Routing Table: 14751 ARIN Prefixes per ASN: 8.14 ARIN Region origin ASes announcing only one prefix: 5666 ARIN Region transit ASes present in the Internet Routing Table: 1530 Average ARIN Region AS path length visible: 3.7 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 12 Number of ARIN addresses announced to Internet: 804516632 Equivalent to 47 /8s, 243 /16s and 243 /24s Percentage of available ARIN address space announced: 63.9 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, 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: 92684 Total RIPE prefixes after maximum aggregation: 50764 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 84519 Unique aggregates announced from the RIPE address blocks: 54209 RIPE Region origin ASes present in the Internet Routing Table: 16052 RIPE Prefixes per ASN: 5.27 RIPE Region origin ASes announcing only one prefix: 7969 RIPE Region transit ASes present in the Internet Routing Table: 2528 Average RIPE Region AS path length visible: 4.1 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1073 Number of RIPE addresses announced to Internet: 491104708 Equivalent to 29 /8s, 69 /16s and 169 /24s Percentage of available RIPE address space announced: 79.1 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, 47104-52223, 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: 35608 Total LACNIC prefixes after maximum aggregation: 7907 LACNIC Deaggregation factor: 4.50 Prefixes being announced from the LACNIC address blocks: 34918 Unique aggregates announced from the LACNIC address blocks: 17911 LACNIC Region origin ASes present in the Internet Routing Table: 1539 LACNIC Prefixes per ASN: 22.69 LACNIC Region origin ASes announcing only one prefix: 451 LACNIC Region transit ASes present in the Internet Routing Table: 273 Average LACNIC Region AS path length visible: 4.2 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 339 Number of LACNIC addresses announced to Internet: 91155208 Equivalent to 5 /8s, 110 /16s and 235 /24s Percentage of available LACNIC address space announced: 60.4 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: 8540 Total AfriNIC prefixes after maximum aggregation: 2014 AfriNIC Deaggregation factor: 4.24 Prefixes being announced from the AfriNIC address blocks: 6608 Unique aggregates announced from the AfriNIC address blocks: 1957 AfriNIC Region origin ASes present in the Internet Routing Table: 486 AfriNIC Prefixes per ASN: 13.60 AfriNIC Region origin ASes announcing only one prefix: 151 AfriNIC Region transit ASes present in the Internet Routing Table: 108 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4 Number of AfriNIC addresses announced to Internet: 27814912 Equivalent to 1 /8s, 168 /16s and 108 /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, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 1938 11103 657 Korea Telecom (KIX) 17974 1916 519 33 PT TELEKOMUNIKASI INDONESIA 7545 1607 303 85 TPG Internet Pty Ltd 4755 1536 635 173 Videsh Sanchar Nigam Ltd. Aut 7552 1388 1064 7 Vietel Corporation 9829 1165 989 28 BSNL National Internet Backbo 9583 1088 80 503 Sify Limited 4808 1037 2076 303 CNCGROUP IP network: China169 24560 969 340 223 Bharti Airtel Ltd. 18101 951 165 146 Reliance Infocom Ltd Internet Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3547 3815 222 bellsouth.net, inc. 7029 2291 1042 210 Windstream Communications Inc 18566 2098 383 177 Covad Communications 1785 1840 680 121 AppliedTheory Corporation 4323 1628 1099 391 Time Warner Telecom 20115 1591 1541 634 Charter Communications 22773 1462 2907 100 Cox Communications, Inc. 19262 1395 4728 400 Verizon Global Networks 30036 1391 251 672 Mediacom Communications Corp 7018 1342 7096 852 AT&T WorldNet Services Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8402 1427 352 13 Corbina telecom 286 1088 827 210 KPNQwest Backbone AS 6830 654 1927 415 UPC Distribution Services 34984 583 108 179 Tellcom Iletisim Hizmetleri 20940 548 184 421 Akamai Technologies European 9116 540 326 31 Goldenlines main autonomous s 3292 532 2080 408 TDC Tele Danmark 3320 501 8169 383 Deutsche Telekom AG 12479 481 593 7 Uni2 Autonomous System 8866 459 133 26 Bulgarian Telecommunication C Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 10620 1681 310 155 TVCABLE BOGOTA 8151 1471 2860 351 Uninet S.A. de C.V. 28573 1387 1032 69 Types of queries are: POCs, o 7303 1164 683 175 Telecom Argentina Stet-France 27947 593 72 79 Telconet S.A 6503 584 450 71 AVANTEL, S.A. 22047 580 322 17 Types of queries are: POCs, o 7738 552 1050 31 Telecomunicacoes da Bahia S.A 10481 548 430 20 Prima S.A. 3816 541 233 96 COLOMBIA TELECOMUNICACIONES S Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 799 146 34 LINKdotNET AS number 8452 653 446 12 TEDATA 15475 443 74 8 Nile Online 36992 300 415 21 Etisalat MISR 3741 279 938 230 The Internet Solution 6713 242 519 14 Itissalat Al-MAGHRIB 15706 240 32 6 Sudatel Internet Exchange Aut 29571 218 18 14 Ci Telecom Autonomous system 33776 207 13 14 Starcomms Nigeria Limited 12258 197 28 58 YEBO-AS Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3547 3815 222 bellsouth.net, inc. 7029 2291 1042 210 Windstream Communications Inc 18566 2098 383 177 Covad Communications 4766 1938 11103 657 Korea Telecom (KIX) 17974 1916 519 33 PT TELEKOMUNIKASI INDONESIA 1785 1840 680 121 AppliedTheory Corporation 10620 1681 310 155 TVCABLE BOGOTA 4323 1628 1099 391 Time Warner Telecom 7545 1607 303 85 TPG Internet Pty Ltd 20115 1591 1541 634 Charter Communications Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7029 2291 2081 Windstream Communications Inc 18566 2098 1921 Covad Communications 17974 1916 1883 PT TELEKOMUNIKASI INDONESIA 1785 1840 1719 AppliedTheory Corporation 10620 1681 1526 TVCABLE BOGOTA 7545 1607 1522 TPG Internet Pty Ltd 8402 1427 1414 Corbina telecom 7552 1388 1381 Vietel Corporation 4755 1536 1363 Videsh Sanchar Nigam Ltd. Aut 22773 1462 1362 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic 23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies, 16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic 32873 UNALLOCATED 12.46.100.0/23 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 10.29.244.56/29 286 KPNQwest Backbone AS 10.29.245.1/32 286 KPNQwest Backbone AS 10.29.245.2/32 286 KPNQwest Backbone AS 10.29.245.15/32 286 KPNQwest Backbone AS 10.29.245.19/32 286 KPNQwest Backbone AS 10.29.245.20/32 286 KPNQwest Backbone AS 10.29.245.21/32 286 KPNQwest Backbone AS 10.29.245.22/32 286 KPNQwest Backbone AS 10.29.245.25/32 286 KPNQwest Backbone AS 10.29.245.26/32 286 KPNQwest Backbone AS Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.225.128.0/18 36377 Comcast Telecommunications, I 24.225.192.0/23 36377 Comcast Telecommunications, I 24.225.192.0/18 36377 Comcast Telecommunications, I 24.225.224.0/21 36377 Comcast Telecommunications, I 24.225.237.0/24 36377 Comcast Telecommunications, I 24.225.248.0/21 36377 Comcast Telecommunications, I 41.223.92.0/22 36936 >>UNKNOWN<< 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 62.61.221.0/24 24974 Tachyon Europe BV - Wireless 64.21.192.0/20 11610 Internet Nebraska Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:27 /11:81 /12:235 /13:464 /14:812 /15:1456 /16:12117 /17:6290 /18:10390 /19:20493 /20:28479 /21:27730 /22:37307 /23:35565 /24:198372 /25:67 /26:85 /27:115 /28:286 /29:113 /30:483 /31:55 /32:475 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2185 3547 bellsouth.net, inc. 18566 2047 2098 Covad Communications 7029 1948 2291 Windstream Communications Inc 10620 1576 1681 TVCABLE BOGOTA 8402 1404 1427 Corbina telecom 30036 1353 1391 Mediacom Communications Corp 11492 1118 1156 Cable One 1785 1057 1840 AppliedTheory Corporation 7011 1048 1166 Citizens Utilities 22773 950 1462 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:409 2:483 4:19 5:1 6:3 8:360 12:1958 13:1 14:543 15:11 16:3 17:7 20:9 23:58 24:1680 27:964 31:601 32:150 33:4 34:2 36:4 38:757 39:1 40:109 41:2662 42:53 44:3 46:999 47:3 49:296 50:440 52:13 55:4 56:2 57:47 58:890 59:491 60:364 61:1187 62:1103 63:1945 64:4107 65:2310 66:4308 67:1999 68:1331 69:3345 70:936 71:377 72:1893 73:1 74:2638 75:399 76:354 77:885 78:850 79:481 80:1147 81:829 82:513 83:530 84:643 85:1117 86:411 87:897 88:360 89:1603 90:269 91:4217 92:530 93:1518 94:1303 95:1066 96:441 97:283 98:922 99:37 101:216 103:370 106:70 107:72 108:72 109:1064 110:673 111:789 112:330 113:485 114:614 115:704 116:909 117:714 118:913 119:1239 120:339 121:712 122:1557 123:1025 124:1363 125:1385 128:258 129:185 130:166 131:594 132:145 133:21 134:220 135:54 136:213 137:140 138:289 139:133 140:488 141:297 142:390 143:440 144:496 145:64 146:473 147:235 148:695 149:266 150:166 151:192 152:448 153:178 154:7 155:385 156:206 157:362 158:153 159:476 160:324 161:214 162:339 163:174 164:509 165:385 166:536 167:435 168:742 169:145 170:873 171:86 172:4 173:1721 174:685 175:437 176:273 177:321 178:1063 180:1097 181:36 182:642 183:218 184:375 185:1 186:1248 187:685 188:938 189:872 190:5116 192:5940 193:5046 194:3584 195:3135 196:1261 197:169 198:3640 199:4175 200:5486 201:1662 202:8560 203:8489 204:4295 205:2373 206:2702 207:2832 208:4074 209:3625 210:2725 211:1462 212:2120 213:1777 214:793 215:91 216:5021 217:1610 218:569 219:338 220:1244 221:515 222:348 223:278 End of report