Routing Table Report 00:00 GMT Wed 29 Feb, 2012
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: 402807 Prefixes after maximum aggregation: 171640 Deaggregation factor: 2.35 Unique aggregates announced to Internet: 194096 Total ASes present in the Internet Routing Table: 40243 Prefixes per ASN: 10.01 Origin-only ASes present in the Internet Routing Table: 32878 Origin ASes announcing only one prefix: 15539 Transit ASes present in the Internet Routing Table: 5339 Transit-only ASes present in the Internet Routing Table: 134 Average AS path length visible in the Internet Routing Table: 3.9 Max AS path length visible: 26 Max AS path prepend of ASN (36992) 22 Prefixes from unregistered ASNs in the Routing Table: 5252 Unregistered ASNs in the Routing Table: 159 Number of 32-bit ASNs allocated by the RIRs: 2297 Number of 32-bit ASNs visible in the Routing Table: 2026 Prefixes from 32-bit ASNs in the Routing Table: 4876 Special use prefixes present in the Routing Table: 87 Prefixes being announced from unallocated address space: 379 Number of addresses announced to Internet: 2523289569 Equivalent to 150 /8s, 102 /16s and 87 /24s Percentage of available address space announced: 68.1 Percentage of allocated address space announced: 68.1 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 92.0 Total number of prefixes smaller than registry allocations: 169736
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 96412 Total APNIC prefixes after maximum aggregation: 30746 APNIC Deaggregation factor: 3.14 Prefixes being announced from the APNIC address blocks: 92822 Unique aggregates announced from the APNIC address blocks: 39368 APNIC Region origin ASes present in the Internet Routing Table: 4633 APNIC Prefixes per ASN: 20.03 APNIC Region origin ASes announcing only one prefix: 1234 APNIC Region transit ASes present in the Internet Routing Table: 741 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 152 Number of APNIC addresses announced to Internet: 641182208 Equivalent to 38 /8s, 55 /16s and 170 /24s Percentage of available APNIC address space announced: 81.3
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: 151250 Total ARIN prefixes after maximum aggregation: 77648 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 122741 Unique aggregates announced from the ARIN address blocks: 49635 ARIN Region origin ASes present in the Internet Routing Table: 14947 ARIN Prefixes per ASN: 8.21 ARIN Region origin ASes announcing only one prefix: 5692 ARIN Region transit ASes present in the Internet Routing Table: 1528 Average ARIN Region AS path length visible: 3.5 Max ARIN Region AS path length visible: 18 Number of ARIN region 32-bit ASNs visible in the Routing Table: 15 Number of ARIN addresses announced to Internet: 805481224 Equivalent to 48 /8s, 2 /16s and 171 /24s Percentage of available ARIN address space announced: 64.0
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: 101803 Total RIPE prefixes after maximum aggregation: 52937 RIPE Deaggregation factor: 1.92 Prefixes being announced from the RIPE address blocks: 92588 Unique aggregates announced from the RIPE address blocks: 56816 RIPE Region origin ASes present in the Internet Routing Table: 16359 RIPE Prefixes per ASN: 5.66 RIPE Region origin ASes announcing only one prefix: 8008 RIPE Region transit ASes present in the Internet Routing Table: 2583 Average RIPE Region AS path length visible: 4.2 Max RIPE Region AS path length visible: 26 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1395 Number of RIPE addresses announced to Internet: 501372300 Equivalent to 29 /8s, 226 /16s and 85 /24s Percentage of available RIPE address space announced: 80.8
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: 39422 Total LACNIC prefixes after maximum aggregation: 8116 LACNIC Deaggregation factor: 4.86 Prefixes being announced from the LACNIC address blocks: 39032 Unique aggregates announced from the LACNIC address blocks: 19637 LACNIC Region origin ASes present in the Internet Routing Table: 1574 LACNIC Prefixes per ASN: 24.80 LACNIC Region origin ASes announcing only one prefix: 442 LACNIC Region transit ASes present in the Internet Routing Table: 292 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 460 Number of LACNIC addresses announced to Internet: 97456136 Equivalent to 5 /8s, 207 /16s and 16 /24s Percentage of available LACNIC address space announced: 64.5
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: 8820 Total AfriNIC prefixes after maximum aggregation: 2096 AfriNIC Deaggregation factor: 4.21 Prefixes being announced from the AfriNIC address blocks: 6839 Unique aggregates announced from the AfriNIC address blocks: 2124 AfriNIC Region origin ASes present in the Internet Routing Table: 510 AfriNIC Prefixes per ASN: 13.41 AfriNIC Region origin ASes announcing only one prefix: 163 AfriNIC Region transit ASes present in the Internet Routing Table: 123 Average AfriNIC Region AS path length visible: 4.2 Max AfriNIC Region AS path length visible: 24 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4 Number of AfriNIC addresses announced to Internet: 31495168 Equivalent to 1 /8s, 224 /16s and 148 /24s Percentage of available AfriNIC address space announced: 46.9
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 1919 11099 676 Korea Telecom (KIX) 17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA 7545 1640 303 87 TPG Internet Pty Ltd 4755 1559 386 157 Videsh Sanchar Nigam Ltd. Aut 9829 1182 997 29 BSNL National Internet Backbo 7552 1154 1062 11 Vietel Corporation 9583 1132 84 481 Sify Limited 4808 1071 2041 307 CNCGROUP IP network: China169 24560 1011 385 167 Bharti Airtel Ltd. 18101 948 130 154 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 3432 3807 200 bellsouth.net, inc. 7029 3432 1028 167 Windstream Communications Inc 18566 2093 382 177 Covad Communications 1785 1874 680 127 AppliedTheory Corporation 20115 1631 1551 629 Charter Communications 4323 1608 1075 382 Time Warner Telecom 22773 1537 2910 110 Cox Communications, Inc. 30036 1405 252 744 Mediacom Communications Corp 19262 1388 4703 398 Verizon Global Networks 7018 1316 6997 858 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 1754 480 15 Corbina telecom 2118 1398 97 13 EUnet/RELCOM Autonomous Syste 15557 1099 2184 60 LDCOM NETWORKS 286 1059 806 200 KPNQwest Backbone AS 34984 657 188 173 Tellcom Iletisim Hizmetleri 6830 645 1927 414 UPC Distribution Services 20940 625 203 484 Akamai Technologies European 12479 610 644 55 Uni2 Autonomous System 8551 600 360 81 Bezeq International 9116 541 326 32 Goldenlines main autonomous s
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 1755 324 173 TVCABLE BOGOTA 28573 1688 1088 63 Types of queries are: POCs, o 8151 1528 2994 346 Uninet S.A. de C.V. 7303 1328 822 186 Telecom Argentina Stet-France 26615 896 664 33 Types of queries are: POCs, o 27947 663 67 108 Telconet S.A 11172 634 91 72 Alestra 6503 585 418 67 AVANTEL, S.A. 22047 581 322 17 Types of queries are: POCs, o 3816 561 240 89 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 8452 1256 958 13 TEDATA 24863 831 274 35 LINKdotNET AS number 6713 490 649 18 Itissalat Al-MAGHRIB 3741 277 923 228 The Internet Solution 15706 227 32 6 Sudatel Internet Exchange Aut 29571 214 17 12 Ci Telecom Autonomous system 12258 197 28 62 YEBO-AS 24835 194 80 8 RAYA Telecom - Egypt 33776 168 12 19 Starcomms Nigeria Limited 36923 157 20 4 Swift Networks Limited
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 3432 3807 200 bellsouth.net, inc. 7029 3432 1028 167 Windstream Communications Inc 18566 2093 382 177 Covad Communications 4766 1919 11099 676 Korea Telecom (KIX) 1785 1874 680 127 AppliedTheory Corporation 10620 1755 324 173 TVCABLE BOGOTA 8402 1754 480 15 Corbina telecom 17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA 28573 1688 1088 63 Types of queries are: POCs, o 7545 1640 303 87 TPG Internet Pty Ltd
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 3432 3265 Windstream Communications Inc 18566 2093 1916 Covad Communications 1785 1874 1747 AppliedTheory Corporation 8402 1754 1739 Corbina telecom 17974 1735 1699 PT TELEKOMUNIKASI INDONESIA 28573 1688 1625 Types of queries are: POCs, o 10620 1755 1582 TVCABLE BOGOTA 7545 1640 1553 TPG Internet Pty Ltd 22773 1537 1427 Cox Communications, Inc. 4755 1559 1402 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global) -----------------------------------------
Bad AS Designation Network Transit AS Description 65505 PRIVATE 1.1.1.0/24 5511 France Telecom 23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati 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 12.45.103.0/24 209 Qwest 17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global) -----------------------------------------------------------
Prefix Origin AS Description 10.29.245.1/32 286 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 10.29.245.27/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses --------------------------------
Network Origin AS Description 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 14.192.24.0/22 45464 Room 201, TGU Bldg 14.192.28.0/22 45464 Room 201, TGU Bldg 23.27.0.0/20 18779 Guru.com 23.27.0.0/16 18779 Guru.com
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 /8:19 /9:12 /10:28 /11:81 /12:233 /13:458 /14:822 /15:1503 /16:12312 /17:6491 /18:10769 /19:21023 /20:29657 /21:29768 /22:40153 /23:37579 /24:210273 /25:67 /26:76 /27:109 /28:278 /29:105 /30:523 /31:19 /32:449
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 7029 3076 3432 Windstream Communications Inc 6389 2106 3432 bellsouth.net, inc. 18566 2042 2093 Covad Communications 8402 1733 1754 Corbina telecom 10620 1652 1755 TVCABLE BOGOTA 30036 1355 1405 Mediacom Communications Corp 11492 1123 1160 Cable One 1785 1064 1874 AppliedTheory Corporation 8452 1064 1256 TEDATA 15557 1046 1099 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
1:522 2:728 4:14 6:3 8:391 12:1966 13:1 14:609 15:11 16:3 17:7 20:8 23:135 24:1734 27:1196 31:949 32:124 33:2 34:2 36:9 37:210 38:781 39:4 40:116 41:3038 42:115 44:3 46:1380 47:3 49:337 50:512 52:13 54:3 55:7 56:3 57:46 58:976 59:495 60:347 61:1199 62:972 63:2024 64:4138 65:2280 66:4492 67:2087 68:1357 69:3282 70:959 71:409 72:1821 73:1 74:2698 75:483 76:331 77:977 78:968 79:501 80:1223 81:889 82:641 83:543 84:599 85:1163 86:736 87:922 88:350 89:1576 90:283 91:4542 92:514 93:1373 94:1378 95:1116 96:425 97:313 98:823 99:38 100:4 101:230 103:854 106:45 107:162 108:182 109:1552 110:745 111:856 112:440 113:550 114:616 115:784 116:887 117:724 118:918 119:1269 120:365 121:712 122:1631 123:1089 124:1390 125:1324 128:538 129:193 130:235 131:591 132:164 133:21 134:236 135:62 136:214 137:183 138:268 139:157 140:491 141:264 142:395 143:423 144:515 145:69 146:485 147:251 148:768 149:300 150:162 151:198 152:448 153:171 154:7 155:415 156:213 157:372 158:164 159:514 160:322 161:245 162:342 163:188 164:531 165:414 166:559 167:458 168:771 169:149 170:838 171:119 172:4 173:1743 174:605 175:443 176:518 177:534 178:1281 180:1212 181:69 182:757 183:278 184:434 185:1 186:2060 187:862 188:1086 189:1209 190:5474 192:6019 193:5575 194:4371 195:3450 196:1299 197:166 198:3645 199:4425 200:5739 201:1751 202:8459 203:8720 204:4362 205:2444 206:2761 207:2798 208:4086 209:3576 210:2792 211:1485 212:2070 213:1872 214:853 215:101 216:5044 217:1516 218:552 219:332 220:1235 221:563 222:347 223:314
End of report
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Routing Analysis Role Account