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Routing Table Report 00:00 GMT Sun 27 Jul, 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: 269529 Prefixes after maximum aggregation: 130488 Deaggregation factor: 2.07 Unique aggregates announced to Internet: 128718 Total ASes present in the Internet Routing Table: 28803 Prefixes per ASN: 9.36 Origin-only ASes present in the Internet Routing Table: 25023 Origin ASes announcing only one prefix: 12134 Transit ASes present in the Internet Routing Table: 3780 Transit-only ASes present in the Internet Routing Table: 83 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 35 Max AS path prepend of ASN (35412) 22 Prefixes from unregistered ASNs in the Routing Table: 638 Unregistered ASNs in the Routing Table: 231 Number of 32-bit ASNs allocated by the RIRs: 52 Prefixes from 32-bit ASNs in the Routing Table: 8 Special use prefixes present in the Routing Table: 6 Prefixes being announced from unallocated address space: 792 Number of addresses announced to Internet: 1898715506 Equivalent to 113 /8s, 44 /16s and 25 /24s Percentage of available address space announced: 51.2 Percentage of allocated address space announced: 62.2 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 72.8 Total number of prefixes smaller than registry allocations: 132692
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 62425 Total APNIC prefixes after maximum aggregation: 22617 APNIC Deaggregation factor: 2.76 Prefixes being announced from the APNIC address blocks: 59514 Unique aggregates announced from the APNIC address blocks: 25597 APNIC Region origin ASes present in the Internet Routing Table: 3320 APNIC Prefixes per ASN: 17.93 APNIC Region origin ASes announcing only one prefix: 892 APNIC Region transit ASes present in the Internet Routing Table: 532 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 22 Number of APNIC addresses announced to Internet: 369120928 Equivalent to 22 /8s, 0 /16s and 86 /24s Percentage of available APNIC address space announced: 78.6
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: 122442 Total ARIN prefixes after maximum aggregation: 66380 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 91202 Unique aggregates announced from the ARIN address blocks: 35102 ARIN Region origin ASes present in the Internet Routing Table: 12330 ARIN Prefixes per ASN: 7.40 ARIN Region origin ASes announcing only one prefix: 4759 ARIN Region transit ASes present in the Internet Routing Table: 1188 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 355094401 Equivalent to 21 /8s, 42 /16s and 79 /24s Percentage of available ARIN address space announced: 73.0
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 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: 57472 Total RIPE prefixes after maximum aggregation: 34569 RIPE Deaggregation factor: 1.66 Prefixes being announced from the RIPE address blocks: 52906 Unique aggregates announced from the RIPE address blocks: 34788 RIPE Region origin ASes present in the Internet Routing Table: 11641 RIPE Prefixes per ASN: 4.54 RIPE Region origin ASes announcing only one prefix: 6093 RIPE Region transit ASes present in the Internet Routing Table: 1776 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 35 Number of RIPE addresses announced to Internet: 367197952 Equivalent to 21 /8s, 226 /16s and 255 /24s Percentage of available RIPE address space announced: 84.2
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: 22562 Total LACNIC prefixes after maximum aggregation: 5197 LACNIC Deaggregation factor: 4.34 Prefixes being announced from the LACNIC address blocks: 20785 Unique aggregates announced from the LACNIC address blocks: 10739 LACNIC Region origin ASes present in the Internet Routing Table: 974 LACNIC Prefixes per ASN: 21.34 LACNIC Region origin ASes announcing only one prefix: 311 LACNIC Region transit ASes present in the Internet Routing Table: 166 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 27 Number of LACNIC addresses announced to Internet: 53868042 Equivalent to 3 /8s, 53 /16s and 246 /24s Percentage of available LACNIC address space announced: 53.5
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: 3996 Total AfriNIC prefixes after maximum aggregation: 1237 AfriNIC Deaggregation factor: 3.23 Prefixes being announced from the AfriNIC address blocks: 4321 Unique aggregates announced from the AfriNIC address blocks: 1888 AfriNIC Region origin ASes present in the Internet Routing Table: 244 AfriNIC Prefixes per ASN: 17.71 AfriNIC Region origin ASes announcing only one prefix: 79 AfriNIC Region transit ASes present in the Internet Routing Table: 48 Average AfriNIC Region AS path length visible: 4.1 Max AfriNIC Region AS path length visible: 17 Number of AfriNIC addresses announced to Internet: 12511232 Equivalent to 0 /8s, 190 /16s and 232 /24s Percentage of available AfriNIC address space announced: 37.3
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 2099 3134 41 China Education and Research 4755 1680 386 88 Videsh Sanchar Nigam Ltd. Aut 17488 1240 85 99 Hathway IP Over Cable Interne 9583 1137 86 485 Sify Limited 4134 841 13603 337 CHINANET-BACKBONE 23577 833 34 734 Korea Telecom (ATM-MPLS) 4766 824 6390 348 Korea Telecom (KIX) 4780 714 351 63 Digital United Inc. 18101 711 167 33 Reliance Infocom Ltd Internet 9498 657 291 54 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 3209 3359 213 bellsouth.net, inc. 6298 1648 237 780 Cox Communicatons 4323 1487 1062 380 Time Warner Telecom 2386 1476 648 882 AT&T Data Communications Serv 3549 1436 539 211 Global Crossing 7018 1407 9926 981 AT&T WorldNet Services 1803 1241 7 984 SPRINT 1785 1227 510 104 AppliedTheory Corporation 11492 1208 149 28 Cable One 20115 1117 1082 571 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 1792 372 TDC Tele Danmark 8452 348 188 11 TEDATA 3301 332 1460 303 TeliaNet Sweden 3320 322 7047 270 Deutsche Telekom AG 8866 317 77 21 Bulgarian Telecommunication C 5462 308 666 27 Telewest Broadband 8551 288 270 38 Bezeq International 3215 277 2758 90 France Telecom Transpac 680 274 2047 264 DFN-IP service G-WiN 6746 267 125 242 Dynamic Network Technologies,
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 1684 234 61 Telecom Argentina Stet-France 8151 1388 2590 224 UniNet S.A. de C.V. 11830 612 299 9 Instituto Costarricense de El 22047 565 270 14 VTR PUNTO NET S.A. 16814 426 27 10 NSS, S.A. 6471 415 85 48 ENTEL CHILE S.A. 11172 408 118 71 Servicios Alestra S.A de C.V 10620 407 107 56 TVCABLE BOGOTA 16735 396 92 12 Companhia de Telecomunicacoes 14117 375 23 9 Telefonica del Sur 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 478 61 25 LINKdotNET AS number 20858 398 34 3 EgyNet 3741 273 855 223 The Internet Solution 2018 209 197 131 Tertiary Education Network 6713 143 135 11 Itissalat Al-MAGHRIB 5713 131 556 76 Telkom SA Ltd 33783 125 9 29 EEPAD TISP TELECOM & INTERNET 5536 120 8 17 Internet Egypt Network 33776 115 6 7 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 6389 3209 3359 213 bellsouth.net, inc. 4538 2099 3134 41 China Education and Research 7303 1684 234 61 Telecom Argentina Stet-France 4755 1680 386 88 Videsh Sanchar Nigam Ltd. Aut 6298 1648 237 780 Cox Communicatons 4323 1487 1062 380 Time Warner Telecom 2386 1476 648 882 AT&T Data Communications Serv 3549 1436 539 211 Global Crossing 7018 1407 9926 981 AT&T WorldNet Services 8151 1388 2590 224 UniNet S.A. de C.V.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4538 2099 2058 China Education and Research 7303 1684 1623 Telecom Argentina Stet-France 4755 1680 1592 Videsh Sanchar Nigam Ltd. Aut 3549 1436 1225 Global Crossing 11492 1208 1180 Cable One 8151 1388 1164 UniNet S.A. de C.V. 17488 1240 1141 Hathway IP Over Cable Interne 1785 1227 1123 AppliedTheory Corporation 4323 1487 1107 Time Warner Telecom 18566 1045 1035 Covad Communications
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 7018 AT&T WorldNet Servic 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 27220 UNALLOCATED 12.35.204.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.152.0/24 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 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 24.48.244.0/23 7843 Adelphia Corp. 24.48.246.0/24 7843 Adelphia Corp. 24.51.159.0/24 7843 Adelphia Corp. 24.54.23.0/24 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
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 /11:46 /12:146 /13:293 /14:525 /15:1053 /16:10087 /17:4370 /18:7564 /19:15791 /20:18646 /21:18160 /22:23345 /23:23976 /24:141611 /25:880 /26:1110 /27:364 /28:717 /29:369 /30:215 /31:0 /32:217
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2040 3209 bellsouth.net, inc. 6298 1624 1648 Cox Communicatons 1803 1218 1241 SPRINT 11492 1190 1208 Cable One 7303 1188 1684 Telecom Argentina Stet-France 2386 1179 1476 AT&T Data Communications Serv 3549 1072 1436 Global Crossing 17488 1050 1240 Hathway IP Over Cable Interne 4755 1030 1680 Videsh Sanchar Nigam Ltd. Aut 18566 1026 1045 Covad Communications
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:8 8:127 12:2120 13:2 14:1 15:22 16:3 17:5 18:13 20:37 24:1098 32:198 38:467 40:92 41:658 43:1 44:2 47:12 50:1 52:3 55:3 56:3 57:46 58:558 59:535 60:453 61:1021 62:1220 63:1966 64:3476 65:2384 66:3551 67:1225 68:744 69:2271 70:804 71:117 72:1964 73:5 74:1075 75:156 76:318 77:760 78:767 79:213 80:942 81:842 82:616 83:382 84:568 85:960 86:409 87:701 88:339 89:1330 90:15 91:1395 92:234 93:740 94:80 96:48 97:34 98:266 99:4 112:1 113:1 114:84 115:19 116:872 117:336 118:189 119:429 120:55 121:570 122:808 123:372 124:901 125:1182 128:361 129:201 130:134 131:411 132:66 133:9 134:186 135:32 136:224 137:92 138:146 139:100 140:497 141:98 142:408 143:333 144:388 145:51 146:384 147:157 148:518 149:197 150:125 151:180 152:146 153:143 154:10 155:252 156:175 157:290 158:187 159:239 160:275 161:119 162:216 163:155 164:517 165:464 166:335 167:332 168:623 169:139 170:451 171:32 172:10 188:1 189:337 190:2423 192:5803 193:4177 194:3277 195:2585 196:1033 198:3731 199:3284 200:5971 201:1624 202:8195 203:8055 204:3977 205:2142 206:2451 207:2770 208:3621 209:3576 210:2963 211:1230 212:1428 213:1614 214:165 215:49 216:4490 217:1215 218:393 219:506 220:1060 221:453 222:375
End of report
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