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Routing Table Report 08:00 +10GMT Mon 01 Aug, 2011
Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary ----------------
BGP routing table entries examined: 359634 Prefixes after maximum aggregation: 163864 Deaggregation factor: 2.19 Unique aggregates announced to Internet: 181409 Total ASes present in the Internet Routing Table: 36869 Prefixes per ASN: 9.75 Origin-only ASes present in the Internet Routing Table: 31772 Origin ASes announcing only one prefix: 15306 Transit ASes present in the Internet Routing Table: 5097 Transit-only ASes present in the Internet Routing Table: 136 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 38 Max AS path prepend of ASN (22394) 31 Prefixes from unregistered ASNs in the Routing Table: 2367 Unregistered ASNs in the Routing Table: 650 Number of 32-bit ASNs allocated by the RIRs: 1606 Number of 32-bit ASNs visible in the Routing Table: 0 Prefixes from 32-bit ASNs in the Routing Table: 2977 Special use prefixes present in the Routing Table: 6 Prefixes being announced from unallocated address space: 115 Number of addresses announced to Internet: 2505626112 Equivalent to 149 /8s, 88 /16s and 210 /24s Percentage of available address space announced: 67.6 Percentage of allocated address space announced: 67.6 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.2 Total number of prefixes smaller than registry allocations: 148514
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 86724 Total APNIC prefixes after maximum aggregation: 29084 APNIC Deaggregation factor: 2.98 Prefixes being announced from the APNIC address blocks: 84177 Unique aggregates announced from the APNIC address blocks: 37648 APNIC Region origin ASes present in the Internet Routing Table: 4465 APNIC Prefixes per ASN: 18.85 APNIC Region origin ASes announcing only one prefix: 1260 APNIC Region transit ASes present in the Internet Routing Table: 679 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 20 Number of APNIC region 32-bit ASNs visible in the Routing Table: 0 Number of APNIC addresses announced to Internet: 622016512 Equivalent to 37 /8s, 19 /16s and 56 /24s Percentage of available APNIC address space announced: 78.9
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: 140596 Total ARIN prefixes after maximum aggregation: 72591 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 112731 Unique aggregates announced from the ARIN address blocks: 46740 ARIN Region origin ASes present in the Internet Routing Table: 14443 ARIN Prefixes per ASN: 7.81 ARIN Region origin ASes announcing only one prefix: 5549 ARIN Region transit ASes present in the Internet Routing Table: 1463 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 0 Number of ARIN addresses announced to Internet: 803211776 Equivalent to 47 /8s, 224 /16s and 10 /24s Percentage of available ARIN address space announced: 63.8
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, 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: 87260 Total RIPE prefixes after maximum aggregation: 49400 RIPE Deaggregation factor: 1.77 Prefixes being announced from the RIPE address blocks: 80609 Unique aggregates announced from the RIPE address blocks: 53064 RIPE Region origin ASes present in the Internet Routing Table: 15821 RIPE Prefixes per ASN: 5.10 RIPE Region origin ASes announcing only one prefix: 7897 RIPE Region transit ASes present in the Internet Routing Table: 2501 Average RIPE Region AS path length visible: 3.6 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 0 Number of RIPE addresses announced to Internet: 484391424 Equivalent to 28 /8s, 223 /16s and 58 /24s Percentage of available RIPE address space announced: 78.0
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: 33193 Total LACNIC prefixes after maximum aggregation: 7527 LACNIC Deaggregation factor: 4.41 Prefixes being announced from the LACNIC address blocks: 32604 Unique aggregates announced from the LACNIC address blocks: 17235 LACNIC Region origin ASes present in the Internet Routing Table: 1479 LACNIC Prefixes per ASN: 22.04 LACNIC Region origin ASes announcing only one prefix: 449 LACNIC Region transit ASes present in the Internet Routing Table: 264 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0 Number of LACNIC addresses announced to Internet: 87205888 Equivalent to 5 /8s, 50 /16s and 168 /24s Percentage of available LACNIC address space announced: 57.8
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, 200/8, 201/8,
AfriNIC Region Analysis Summary -------------------------------
Prefixes being announced by AfriNIC Region ASes: 8196 Total AfriNIC prefixes after maximum aggregation: 1980 AfriNIC Deaggregation factor: 4.14 Prefixes being announced from the AfriNIC address blocks: 6455 Unique aggregates announced from the AfriNIC address blocks: 2045 AfriNIC Region origin ASes present in the Internet Routing Table: 477 AfriNIC Prefixes per ASN: 13.53 AfriNIC Region origin ASes announcing only one prefix: 151 AfriNIC Region transit ASes present in the Internet Routing Table: 101 Average AfriNIC Region AS path length visible: 3.4 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0 Number of AfriNIC addresses announced to Internet: 26903552 Equivalent to 1 /8s, 154 /16s and 132 /24s Percentage of available AfriNIC address space announced: 40.1
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 1929 11038 644 Korea Telecom (KIX) 7545 1558 301 86 TPG Internet Pty Ltd 17974 1517 508 32 PT Telekomunikasi Indonesia 4755 1504 375 169 TATA Communications formerly 24560 1194 336 187 Bharti Airtel Ltd., Telemedia 9829 1094 929 42 National Internet Backbone 9583 1075 80 510 Sify Limited 17488 967 190 113 Hathway IP Over Cable Interne 7552 953 1062 11 Vietel Corporation 4808 950 2004 274 CNCGROUP IP network China169
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 6389 3620 3818 238 BellSouth.net Inc. 18566 1911 364 239 Covad Communications Co. 1785 1815 681 121 PaeTec Communications, Inc. 7029 1644 1031 209 Windstream Communications Inc 4323 1615 1098 402 tw telecom holdings, inc. 20115 1590 1538 623 Charter Communications 19262 1413 4792 392 Verizon Online LLC 22773 1405 2900 90 Cox Communications Inc. 7018 1371 7101 899 AT&T Services, Inc. 2386 1258 520 906 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 9116 540 326 31 Goldenlines main autonomous s 34984 534 106 185 BILISIM TELEKOM 6830 511 1788 316 UPC Broadband 3292 468 2078 403 TDC Data Networks 20940 465 134 359 Akamai Technologies European 12479 456 593 7 France Telecom Espana SA 8866 454 133 26 Bulgarian Telecommunication C 29049 433 32 55 AzerSat LLC. 3320 424 8151 370 Deutsche Telekom AG 8551 405 355 38 Bezeq International
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 10620 1565 288 167 Types of queries are: POCs, o 28573 1269 996 67 Types of queries are: POCs, o 8151 1250 2729 350 Uninet S.A. de C.V. 7303 1044 577 163 Telecom Argentina S.A. 6503 752 451 78 Axtel, S.A.B. de C.V. 14420 701 56 82 CORPORACION NACIONAL DE TELEC 22047 578 322 17 Types of queries are: POCs, o 3816 534 232 96 Types of queries are: POCs, o 7738 516 986 31 Telecomunicacoes da Bahia S.A 11172 501 100 86 Alestra, S. de R.L. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8452 797 445 11 TEDATA 24863 795 147 34 LINKdotNET AS number 15475 514 74 8 Nile Online 36992 313 415 14 Etisalat MISR 3741 265 937 226 The Internet Solution 6713 260 519 14 Itissalat Al-MAGHRIB 33776 227 13 6 Starcomms Nigeria Limited 24835 177 78 10 RAYA Telecom - Egypt 29571 158 17 11 Ci Telecom Autonomous system 16637 150 697 88 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary ----------------------------------
ASN No of nets /20 equiv MaxAgg Description 6389 3620 3818 238 BellSouth.net Inc. 23456 2977 718 1598 32-bit ASN transition 4766 1929 11038 644 Korea Telecom (KIX) 18566 1911 364 239 Covad Communications Co. 1785 1815 681 121 PaeTec Communications, Inc. 7029 1644 1031 209 Windstream Communications Inc 4323 1615 1098 402 tw telecom holdings, inc. 20115 1590 1538 623 Charter Communications 10620 1565 288 167 Types of queries are: POCs, o 7545 1558 301 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 1785 1815 1694 PaeTec Communications, Inc. 18566 1911 1672 Covad Communications Co. 17974 1517 1485 PT Telekomunikasi Indonesia 7545 1558 1472 TPG Internet Pty Ltd 7029 1644 1435 Windstream Communications Inc 10620 1565 1398 Types of queries are: POCs, o 23456 2977 1379 32-bit ASN transition 4755 1504 1335 TATA Communications formerly 22773 1405 1315 Cox Communications Inc. 4766 1929 1285 Korea Telecom (KIX)
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global) -----------------------------------------
Bad AS Designation Network Transit AS Description 65333 PRIVATE 10.0.0.0/8 0 * 32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc. 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc. 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc. 16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion 32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings, 30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc. 26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc. 21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc. 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global) -----------------------------------------------------------
Prefix Origin AS Description 10.0.0.0/8 65333 Internet Assigned Numbers Aut 169.254.0.0/16 65333 Internet Assigned Numbers Aut 172.16.0.0/12 65333 Internet Assigned Numbers Aut 192.0.2.0/24 65333 Internet Assigned Numbers Aut 192.168.0.0/16 65535 Internet Assigned Numbers Aut 198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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 41.222.79.0/24 36938 >>UNKNOWN<< 41.223.92.0/22 36936 >>UNKNOWN<< 62.61.220.0/24 24974 Tachyon Europe BV 62.61.221.0/24 24974 Tachyon Europe BV
Complete listing at http://thyme.rand.apnic.net/london/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 /9:12 /10:27 /11:80 /12:234 /13:465 /14:798 /15:1404 /16:12022 /17:5876 /18:9780 /19:19616 /20:26234 /21:26225 /22:34692 /23:33564 /24:188080 /25:12 /26:19 /27:23 /28:153 /29:111 /30:59 /31:0 /32:127
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2242 3620 BellSouth.net Inc. 18566 1868 1911 Covad Communications Co. 23456 1469 2977 32-bit ASN transition 10620 1460 1565 Types of queries are: POCs, o 7029 1321 1644 Windstream Communications Inc 11492 1096 1142 CABLE ONE, INC. 7011 1057 1159 Frontier Communications of Am 1785 1053 1815 PaeTec Communications, Inc. 6478 967 995 AT&T Services, Inc. 22773 904 1405 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
1:339 2:46 4:16 5:1 6:3 8:341 12:1963 13:1 14:482 15:15 16:3 17:5 20:10 23:16 24:1676 27:856 31:512 32:59 33:4 34:2 36:4 38:723 40:104 41:2555 42:36 44:3 46:1050 47:3 49:201 50:375 52:13 54:2 55:5 56:2 57:33 58:817 59:481 60:376 61:1020 62:1057 63:1934 64:3962 65:2299 66:3899 67:1889 68:1103 69:3033 70:776 71:373 72:1860 74:2435 75:327 76:340 77:864 78:703 79:484 80:1120 81:839 82:506 83:469 84:691 85:1065 86:518 87:765 88:334 89:1532 90:224 91:3994 92:527 93:1059 94:1334 95:866 96:415 97:263 98:913 99:37 101:78 103:163 106:79 107:27 108:73 109:1033 110:607 111:712 112:298 113:396 114:556 115:664 116:966 117:657 118:807 119:1167 120:312 121:647 122:1600 123:966 124:1276 125:1280 128:208 129:163 130:164 131:576 132:107 133:21 134:206 135:52 136:213 137:129 138:296 139:113 140:457 141:255 142:387 143:418 144:482 145:57 146:447 147:213 148:601 149:251 150:151 151:189 152:339 153:182 154:4 155:399 156:196 157:324 158:140 159:389 160:316 161:196 162:307 163:158 164:507 165:363 166:531 167:432 168:734 169:149 170:834 171:81 172:1 173:1619 174:610 175:373 176:148 177:185 178:996 180:873 181:26 182:501 183:234 184:341 185:1 186:1310 187:741 188:895 189:966 190:5019 192:5876 193:4982 194:3506 195:3064 196:1209 197:47 198:3533 199:3957 200:5478 201:1469 202:8203 203:8350 204:4168 205:2306 206:2579 207:2737 208:3982 209:3384 210:2598 211:1445 212:2103 213:1760 214:786 215:69 216:4866 217:1629 218:536 219:343 220:1196 221:478 222:310 223:229
End of report
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