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Routing Table Report 00:00 GMT Fri 22 Aug, 2008
NB: RouteViews data includes iBGP information from some ASNs. Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/rviews/
Analysis Summary ----------------
BGP routing table entries examined: 273622 Prefixes after maximum aggregation: 131051 Deaggregation factor: 2.09 Unique aggregates announced to Internet: 129360 Total ASes present in the Internet Routing Table: 29060 Prefixes per ASN: 9.42 Origin-only ASes present in the Internet Routing Table: 25169 Origin ASes announcing only one prefix: 12227 Transit ASes present in the Internet Routing Table: 3891 Transit-only ASes present in the Internet Routing Table: 93 Average AS path length visible in the Internet Routing Table: 4.2 Max AS path length visible: 29 Max AS path prepend of ASN (17957) 20 Prefixes from unregistered ASNs in the Routing Table: 608 Unregistered ASNs in the Routing Table: 223 Number of 32-bit ASNs allocated by the RIRs: 58 Prefixes from 32-bit ASNs in the Routing Table: 7 Special use prefixes present in the Routing Table: 6 Prefixes being announced from unallocated address space: 789 Number of addresses announced to Internet: 1913157116 Equivalent to 114 /8s, 8 /16s and 117 /24s Percentage of available address space announced: 51.6 Percentage of allocated address space announced: 62.7 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 73.2 Total number of prefixes smaller than registry allocations: 135544
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 64205 Total APNIC prefixes after maximum aggregation: 22642 APNIC Deaggregation factor: 2.84 Prefixes being announced from the APNIC address blocks: 61272 Unique aggregates announced from the APNIC address blocks: 25774 APNIC Region origin ASes present in the Internet Routing Table: 3345 APNIC Prefixes per ASN: 18.32 APNIC Region origin ASes announcing only one prefix: 888 APNIC Region transit ASes present in the Internet Routing Table: 534 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 24 Number of APNIC addresses announced to Internet: 373681056 Equivalent to 22 /8s, 69 /16s and 235 /24s Percentage of available APNIC address space announced: 79.5
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, 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, 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: 123264 Total ARIN prefixes after maximum aggregation: 66535 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 91620 Unique aggregates announced from the ARIN address blocks: 35030 ARIN Region origin ASes present in the Internet Routing Table: 12408 ARIN Prefixes per ASN: 7.38 ARIN Region origin ASes announcing only one prefix: 4764 ARIN Region transit ASes present in the Internet Routing Table: 1234 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 362503425 Equivalent to 21 /8s, 155 /16s and 93 /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, 46080-47103 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: 58236 Total RIPE prefixes after maximum aggregation: 34925 RIPE Deaggregation factor: 1.67 Prefixes being announced from the RIPE address blocks: 53651 Unique aggregates announced from the RIPE address blocks: 35283 RIPE Region origin ASes present in the Internet Routing Table: 11765 RIPE Prefixes per ASN: 4.56 RIPE Region origin ASes announcing only one prefix: 6177 RIPE Region transit ASes present in the Internet Routing Table: 1836 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 29 Number of RIPE addresses announced to Internet: 369539648 Equivalent to 22 /8s, 6 /16s and 186 /24s Percentage of available RIPE address space announced: 84.7
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, 47104-48127 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: 23301 Total LACNIC prefixes after maximum aggregation: 5238 LACNIC Deaggregation factor: 4.45 Prefixes being announced from the LACNIC address blocks: 21559 Unique aggregates announced from the LACNIC address blocks: 10737 LACNIC Region origin ASes present in the Internet Routing Table: 985 LACNIC Prefixes per ASN: 21.89 LACNIC Region origin ASes announcing only one prefix: 316 LACNIC Region transit ASes present in the Internet Routing Table: 167 Average LACNIC Region AS path length visible: 5.5 Max LACNIC Region AS path length visible: 28 Number of LACNIC addresses announced to Internet: 54544148 Equivalent to 3 /8s, 64 /16s and 71 /24s Percentage of available LACNIC address space announced: 54.2
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: 4008 Total AfriNIC prefixes after maximum aggregation: 1232 AfriNIC Deaggregation factor: 3.25 Prefixes being announced from the AfriNIC address blocks: 4364 Unique aggregates announced from the AfriNIC address blocks: 1932 AfriNIC Region origin ASes present in the Internet Routing Table: 254 AfriNIC Prefixes per ASN: 17.18 AfriNIC Region origin ASes announcing only one prefix: 82 AfriNIC Region transit ASes present in the Internet Routing Table: 50 Average AfriNIC Region AS path length visible: 4.3 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC addresses announced to Internet: 12624384 Equivalent to 0 /8s, 192 /16s and 162 /24s Percentage of available AfriNIC address space announced: 37.6
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 4538 3299 3214 44 China Education and Research 4755 1707 578 91 Videsh Sanchar Nigam Ltd. Aut 17488 1308 90 97 Hathway IP Over Cable Interne 9583 1171 92 499 Sify Limited 4134 849 13523 339 CHINANET-BACKBONE 4766 839 6407 356 Korea Telecom (KIX) 23577 826 33 731 Korea Telecom (ATM-MPLS) 4780 721 353 61 Digital United Inc. 18101 694 167 33 Reliance Infocom Ltd Internet 9498 678 291 56 BHARTI BT INTERNET 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 6389 3200 3358 208 bellsouth.net, inc. 6298 1981 319 726 Cox Communicatons 1785 1648 710 156 AppliedTheory Corporation 2386 1557 692 899 AT&T Data Communications Serv 4323 1495 1073 376 Time Warner Telecom 3549 1450 539 213 Global Crossing 7018 1421 9905 991 AT&T WorldNet Services 1803 1263 7 1000 SPRINT 11492 1214 151 22 Cable One 20115 1114 1081 574 Charter Communications
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 417 1776 372 TDC Tele Danmark 3215 396 2756 106 France Telecom Transpac 8452 358 188 11 TEDATA 3301 332 1444 303 TeliaNet Sweden 3320 322 7047 270 Deutsche Telekom AG 8866 316 77 21 Bulgarian Telecommunication C 5462 307 666 27 Telewest Broadband 8551 288 270 38 Bezeq International 1257 279 1131 204 SWIPnet Swedish IP Network 680 275 2047 265 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 7303 1693 235 67 Telecom Argentina Stet-France 8151 1518 2592 223 UniNet S.A. de C.V. 8167 665 593 43 TELESC - Telecomunicacoes de 11830 664 299 9 Instituto Costarricense de El 22047 563 270 14 VTR PUNTO NET S.A. 16814 426 27 10 NSS, S.A. 6471 421 85 48 ENTEL CHILE S.A. 16735 413 92 12 Companhia de Telecomunicacoes 11172 409 118 71 Servicios Alestra S.A de C.V 10620 380 101 75 TVCABLE BOGOTA
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 496 64 28 LINKdotNET AS number 20858 402 34 3 EgyNet 3741 267 856 221 The Internet Solution 2018 223 213 131 Tertiary Education Network 6713 144 135 11 Itissalat Al-MAGHRIB 33783 136 10 13 EEPAD TISP TELECOM & INTERNET 5536 120 8 17 Internet Egypt Network 5713 118 539 70 Telkom SA Ltd 33776 115 6 3 Starcomms Nigeria Limited 29571 107 13 8 Ci Telecom Autonomous system
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 4538 3299 3214 44 China Education and Research 6389 3200 3358 208 bellsouth.net, inc. 6298 1981 319 726 Cox Communicatons 4755 1707 578 91 Videsh Sanchar Nigam Ltd. Aut 7303 1693 235 67 Telecom Argentina Stet-France 1785 1648 710 156 AppliedTheory Corporation 2386 1557 692 899 AT&T Data Communications Serv 8151 1518 2592 223 UniNet S.A. de C.V. 4323 1495 1073 376 Time Warner Telecom 3549 1450 539 213 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 6389 3200 2992 bellsouth.net, inc. 7303 1693 1626 Telecom Argentina Stet-France 4755 1707 1616 Videsh Sanchar Nigam Ltd. Aut 1785 1648 1492 AppliedTheory Corporation 8151 1518 1295 UniNet S.A. de C.V. 6298 1981 1255 Cox Communicatons 3549 1450 1237 Global Crossing 17488 1308 1211 Hathway IP Over Cable Interne 11492 1214 1192 Cable One 4323 1495 1119 Time Warner Telecom
Complete listing at http://thyme.apnic.net/rviews/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 22492 UNALLOCATED 12.2.46.0/24 1239 Sprint 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic 13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic 13632 UNALLOCATED 12.31.25.0/24 6517 Yipes Communications 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 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 10.29.246.47/32 286 KPNQwest Backbone AS 10.29.246.48/32 286 KPNQwest Backbone AS 10.29.246.49/32 286 KPNQwest Backbone AS 10.29.248.65/32 286 KPNQwest Backbone AS 10.29.248.71/32 286 KPNQwest Backbone AS 192.168.192.0/21 7497 Computer Network Information
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. 24.53.86.0/24 7843 Adelphia Corp. 24.54.224.0/19 20001 HoldCo LLC - Road Runner 24.55.0.0/18 20001 HoldCo LLC - Road Runner 24.75.160.0/19 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
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 /10:17 /11:46 /12:147 /13:298 /14:538 /15:1069 /16:10133 /17:4427 /18:7649 /19:16034 /20:19072 /21:18473 /22:23831 /23:24698 /24:142763 /25:872 /26:1106 /27:384 /28:734 /29:839 /30:239 /31:0 /32:225
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2037 3200 bellsouth.net, inc. 6298 1954 1981 Cox Communicatons 4538 1759 3299 China Education and Research 1803 1241 1263 SPRINT 2386 1235 1557 AT&T Data Communications Serv 7303 1196 1693 Telecom Argentina Stet-France 11492 1195 1214 Cable One 1785 1117 1648 AppliedTheory Corporation 17488 1115 1308 Hathway IP Over Cable Interne 3549 1087 1450 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:8 8:129 12:2139 13:2 14:1 15:22 16:3 17:5 18:13 20:37 24:1084 32:197 38:497 40:92 41:695 43:1 44:2 47:12 50:1 52:3 55:3 56:3 57:47 58:560 59:584 60:453 61:995 62:1252 63:1982 64:3407 65:2353 66:3455 67:1224 68:775 69:2301 70:856 71:134 72:2007 73:7 74:1115 75:166 76:324 77:768 78:820 79:224 80:972 81:869 82:591 83:383 84:568 85:979 86:399 87:729 88:340 89:1317 90:40 91:1415 92:243 93:825 94:79 96:57 97:60 98:312 99:3 114:96 115:33 116:966 117:352 118:199 119:479 120:75 121:597 122:821 123:384 124:842 125:1236 128:354 129:205 130:135 131:408 132:70 133:9 134:184 135:33 136:223 137:94 138:141 139:100 140:505 141:103 142:406 143:311 144:407 145:51 146:385 147:156 148:517 149:202 150:129 151:183 152:147 153:143 154:10 155:280 156:171 157:289 158:166 159:301 160:272 161:131 162:265 163:156 164:518 165:462 166:379 167:333 168:628 169:141 170:448 171:33 172:10 173:16 188:1 189:524 190:2303 192:5814 193:4234 194:3284 195:2613 196:1018 198:3732 199:3311 200:5922 201:1700 202:8212 203:8088 204:3959 205:2155 206:2448 207:2773 208:3649 209:3408 210:2992 211:1244 212:1444 213:1637 214:175 215:50 216:4348 217:1215 218:403 219:517 220:1065 221:455 222:441
End of report
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