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Routing Table Report 00:00 GMT Sat 29 Mar, 2008
NB: RouteViews data includes iBGP information from some ASNs. Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net This report: http://thyme.apnic.net/oix-data/2008/03/29
Analysis Summary ----------------
BGP routing table entries examined: 255872 Prefixes after maximum aggregation: 127063 Deaggregation factor: 2.01 Unique aggregates announced to Internet: 121845 Total ASes present in the Internet Routing Table: 27773 Prefixes per ASN: 9.21 Origin-only ASes present in the Internet Routing Table: 24175 Origin ASes announcing only one prefix: 11191 Transit ASes present in the Internet Routing Table: 3598 Transit-only ASes present in the Internet Routing Table: 71 Average AS path length visible in the Internet Routing Table: 5.0 Max AS path length visible: 30 Max AS path prepend of ASN (35412) 22 Prefixes from unregistered ASNs in the Routing Table: 26305 Unregistered ASNs in the Routing Table: 1931 Number of 32-bit ASNs allocated by the RIRs: 47 Prefixes from 32-bit ASNs in the Routing Table: 8 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 872 Number of addresses announced to Internet: 1850983593 Equivalent to 110 /8s, 83 /16s and 196 /24s Percentage of available address space announced: 49.9 Percentage of allocated address space announced: 61.3 Percentage of available address space allocated: 81.4 Percentage of address space in use by end-sites: 71.0 Total number of prefixes smaller than registry allocations: 121748
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 44280 Total APNIC prefixes after maximum aggregation: 13551 APNIC Deaggregation factor: 3.27 Prefixes being announced from the APNIC address blocks: 56817 Unique aggregates announced from the APNIC address blocks: 23508 APNIC Region origin ASes present in the Internet Routing Table: 1909 APNIC Prefixes per ASN: 29.76 APNIC Region origin ASes announcing only one prefix: 544 APNIC Region transit ASes present in the Internet Routing Table: 351 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 336984368 Equivalent to 20 /8s, 21 /16s and 249 /24s Percentage of available APNIC address space announced: 77.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 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, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8,
ARIN Region Analysis Summary ----------------------------
Prefixes being announced by ARIN Region ASes: 108172 Total ARIN prefixes after maximum aggregation: 59173 ARIN Deaggregation factor: 1.83 Prefixes being announced from the ARIN address blocks: 86729 Unique aggregates announced from the ARIN address blocks: 33923 ARIN Region origin ASes present in the Internet Routing Table: 11667 ARIN Prefixes per ASN: 7.43 ARIN Region origin ASes announcing only one prefix: 4514 ARIN Region transit ASes present in the Internet Routing Table: 1059 Average ARIN Region AS path length visible: 4.7 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 362562208 Equivalent to 21 /8s, 156 /16s and 66 /24s Percentage of available ARIN address space announced: 74.5
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 ARIN Address Blocks 24/8, 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, 173/8, 174/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 216/8,
RIPE Region Analysis Summary ----------------------------
Prefixes being announced by RIPE Region ASes: 54115 Total RIPE prefixes after maximum aggregation: 33178 RIPE Deaggregation factor: 1.63 Prefixes being announced from the RIPE address blocks: 49670 Unique aggregates announced from the RIPE address blocks: 32640 RIPE Region origin ASes present in the Internet Routing Table: 11099 RIPE Prefixes per ASN: 4.48 RIPE Region origin ASes announcing only one prefix: 5773 RIPE Region transit ASes present in the Internet Routing Table: 1691 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 348252425 Equivalent to 20 /8s, 193 /16s and 233 /24s Percentage of available RIPE address space announced: 79.8
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 RIPE Address Blocks 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, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary ------------------------------
Prefixes being announced by LACNIC Region ASes: 19309 Total LACNIC prefixes after maximum aggregation: 4808 LACNIC Deaggregation factor: 4.02 Prefixes being announced from the LACNIC address blocks: 17680 Unique aggregates announced from the LACNIC address blocks: 9578 LACNIC Region origin ASes present in the Internet Routing Table: 881 LACNIC Prefixes per ASN: 20.07 LACNIC Region origin ASes announcing only one prefix: 279 LACNIC Region transit ASes present in the Internet Routing Table: 154 Average LACNIC Region AS path length visible: 5.6 Max LACNIC Region AS path length visible: 30 Number of LACNIC addresses announced to Internet: 49822592 Equivalent to 2 /8s, 248 /16s and 59 /24s Percentage of available LACNIC address space announced: 49.5
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary -------------------------------
Prefixes being announced by AfriNIC Region ASes: 3692 Total AfriNIC prefixes after maximum aggregation: 1154 AfriNIC Deaggregation factor: 3.20 Prefixes being announced from the AfriNIC address blocks: 4090 Unique aggregates announced from the AfriNIC address blocks: 1804 AfriNIC Region origin ASes present in the Internet Routing Table: 236 AfriNIC Prefixes per ASN: 17.33 AfriNIC Region origin ASes announcing only one prefix: 81 AfriNIC Region transit ASes present in the Internet Routing Table: 45 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 10200832 Equivalent to 0 /8s, 155 /16s and 167 /24s Percentage of available AfriNIC address space announced: 30.4
AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8,
APNIC Region per AS prefix count summary ----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 4755 1615 387 86 Videsh Sanchar Nigam Ltd. Aut 4538 1549 3102 39 China Education and Research 9583 1148 133 154 Sify Limited 9498 1123 550 63 BHARTI BT INTERNET LTD. 17488 1038 67 81 Hathway IP Over Cable Interne 4134 854 12473 317 CHINANET-BACKBONE 4766 850 6005 340 Korea Telecom (KIX) 18101 673 126 52 Reliance Infocom Ltd Internet 9829 597 451 13 BSNL National Internet Backbo 1221 593 1950 428 Telstra Pty Ltd
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1428 10030 1001 AT&T WorldNet Services 2386 1393 643 861 AT&T Data Communications Serv 4323 1393 1028 367 Time Warner Telecom 11492 1216 146 23 Cable One 7011 1080 314 616 Citizens Utilities 18566 1046 296 10 Covad Communications 1785 1008 479 107 AppliedTheory Corporation 6197 993 728 479 BellSouth Network Solutions, 174 965 6834 812 Cogent Communications 22773 898 2394 63 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 3292 399 1776 360 TDC Tele Danmark 8452 358 188 7 TEDATA 3301 341 1459 310 TeliaNet Sweden 3320 321 7045 266 Deutsche Telekom AG 5462 300 666 27 Telewest Broadband 8866 300 78 24 Bulgarian Telecommunication C 3215 277 2655 91 France Telecom Transpac 6746 264 127 242 Dynamic Network Technologies, 1273 260 288 102 Cable & Wireless Deutschland 680 259 2046 258 DFN-IP service G-WiN
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 1172 2404 219 UniNet S.A. de C.V. 11830 555 299 9 Instituto Costarricense de El 7303 457 220 63 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 11172 407 117 69 Servicios Alestra S.A de C.V 6471 396 85 39 ENTEL CHILE S.A. 10620 393 103 51 TVCABLE BOGOTA 14117 343 23 9 Telefonica del Sur S.A. 22047 322 270 14 VTR PUNTO NET S.A. 10481 310 152 10 Prima S.A.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 24863 450 60 27 LINKdotNET AS number 3741 296 869 227 The Internet Solution 2018 257 276 112 Tertiary Education Network 20858 216 34 3 EgyNet 6713 144 135 11 Itissalat Al-MAGHRIB 33783 130 9 16 EEPAD TISP TELECOM & INTERNET 5536 121 8 16 Internet Egypt Network 33776 99 6 7 Starcomms Nigeria Limited 24835 89 48 7 RAYA Telecom - Egypt 2905 83 176 74 The Internetworking Company o
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary ----------------------------------
ASN No of nets /20 equiv MaxAgg Description 23577 1884 35 800 Korea Telecom (ATM-MPLS) 6389 1756 2992 85 bellsouth.net, inc. 4755 1615 387 86 Videsh Sanchar Nigam Ltd. Aut 4538 1549 3102 39 China Education and Research 7018 1428 10030 1001 AT&T WorldNet Services 2386 1393 643 861 AT&T Data Communications Serv 4323 1393 1028 367 Time Warner Telecom 11492 1216 146 23 Cable One 8151 1172 2404 219 UniNet S.A. de C.V. 9583 1148 133 154 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 6389 1756 1671 bellsouth.net, inc. 4755 1615 1529 Videsh Sanchar Nigam Ltd. Aut 4538 1549 1510 China Education and Research 11492 1216 1193 Cable One 9498 1123 1060 BHARTI BT INTERNET LTD. 18566 1046 1036 Covad Communications 4323 1393 1026 Time Warner Telecom 9583 1148 994 Sify Limited 17488 1038 957 Hathway IP Over Cable Interne 8151 1172 953 UniNet S.A. de C.V.
Complete listing at http://thyme.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global) -----------------------------------------
Bad AS Designation Network Transit AS Description 14780 UNALLOCATED 4.79.181.0/24 10310 Yahoo! 12180 UNALLOCATED 4.79.248.0/24 3561 Savvis 11096 UNALLOCATED 8.6.245.0/24 20080 Florida Internationa 26478 UNALLOCATED 8.7.228.0/24 6461 AboveNet Communicati 12180 UNALLOCATED 8.10.16.0/24 3549 Global Crossing 12180 UNALLOCATED 8.10.58.0/23 3549 Global Crossing 14779 UNALLOCATED 8.12.144.0/24 10310 Yahoo! 16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic 22492 UNALLOCATED 12.2.46.0/24 7018 AT&T WorldNet Servic 14984 UNALLOCATED 12.2.192.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global) -----------------------------------------------------------
Prefix Origin AS Description 172.31.0.0/16 194 University Corporation for At 192.0.2.0/24 2854 RoSprint AS (Global One Russi
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses --------------------------------
Network Origin AS Description 24.51.159.0/24 7843 Adelphia Corp. 24.54.224.0/19 20001 HoldCo LLC - Road Runner 24.75.160.0/19 7843 Adelphia Corp. 24.75.192.0/18 7843 Adelphia Corp. 24.142.40.0/21 7018 AT&T WorldNet Services 24.142.160.0/19 7018 AT&T WorldNet Services 24.246.0.0/17 7018 AT&T WorldNet Services 24.246.128.0/18 7018 AT&T WorldNet Services 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 63.140.213.0/24 22555 Universal Talkware Corporatio
Complete listing at http://thyme.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 /9:9 /10:16 /11:41 /12:138 /13:282 /14:506 /15:1007 /16:9922 /17:4406 /18:7455 /19:15613 /20:18578 /21:16996 /22:21580 /23:22695 /24:133230 /25:941 /26:1015 /27:571 /28:289 /29:222 /30:262 /31:0 /32:79
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 11492 1202 1216 Cable One 2386 1095 1393 AT&T Data Communications Serv 18566 1027 1046 Covad Communications 9583 986 1148 Sify Limited 7011 962 1080 Citizens Utilities 4755 960 1615 Videsh Sanchar Nigam Ltd. Aut 23577 933 1884 Korea Telecom (ATM-MPLS) 6478 890 891 AT&T Worldnet Services 17488 853 1038 Hathway IP Over Cable Interne 7018 800 1428 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:9 8:103 11:1 12:2016 13:2 15:20 16:3 17:6 18:13 20:35 24:1040 25:1 32:184 33:4 38:405 40:95 41:623 43:6 44:2 47:8 52:3 55:3 56:3 57:44 58:514 59:427 60:426 61:993 62:1122 63:1977 64:3447 65:2428 66:3688 67:1081 68:660 69:2126 70:547 71:128 72:1535 73:6 74:901 75:222 76:293 77:639 78:554 79:121 80:913 81:838 82:632 83:378 84:550 85:940 86:390 87:640 88:319 89:1208 90:12 91:1139 92:233 93:153 96:18 97:16 98:108 99:3 116:576 117:277 118:100 119:330 121:454 122:724 123:307 124:810 125:1129 128:320 129:200 130:124 131:404 132:67 133:9 134:188 135:32 136:222 137:123 138:154 139:98 140:482 141:110 142:385 143:279 144:347 145:54 146:335 147:133 148:499 149:182 150:120 151:159 152:144 153:127 154:12 155:265 156:207 157:255 158:167 159:223 160:265 161:113 162:207 163:203 164:577 165:435 166:306 167:314 168:595 169:131 170:425 171:28 172:3 189:170 190:1561 192:5798 193:4112 194:3322 195:2474 196:1127 198:3850 199:3234 200:5514 201:1327 202:7602 203:7860 204:4027 205:2095 206:2476 207:2806 208:3265 209:3603 210:2526 211:1074 212:1343 213:1623 214:460 215:48 216:4361 217:1235 218:357 219:509 220:1059 221:407 222:316
End of report
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