Routing Table Report 00:00 GMT Tue 10 Jun, 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: 264641
Prefixes after maximum aggregation: 129297
Deaggregation factor: 2.05
Unique aggregates announced to Internet: 126288
Total ASes present in the Internet Routing Table: 28434
Prefixes per ASN: 9.31
Origin-only ASes present in the Internet Routing Table: 24672
Origin ASes announcing only one prefix: 11947
Transit ASes present in the Internet Routing Table: 3762
Transit-only ASes present in the Internet Routing Table: 85
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 29
Max AS path prepend of ASN (17957) 20
Prefixes from unregistered ASNs in the Routing Table: 635
Unregistered ASNs in the Routing Table: 239
Number of 32-bit ASNs allocated by the RIRs: 48
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: 778
Number of addresses announced to Internet: 1894590640
Equivalent to 112 /8s, 237 /16s and 40 /24s
Percentage of available address space announced: 51.1
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 72.1
Total number of prefixes smaller than registry allocations: 129420
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 60941
Total APNIC prefixes after maximum aggregation: 22088
APNIC Deaggregation factor: 2.76
Prefixes being announced from the APNIC address blocks: 58057
Unique aggregates announced from the APNIC address blocks: 24965
APNIC Region origin ASes present in the Internet Routing Table: 3274
APNIC Prefixes per ASN: 17.73
APNIC Region origin ASes announcing only one prefix: 872
APNIC Region transit ASes present in the Internet Routing Table: 527
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 351858592
Equivalent to 20 /8s, 248 /16s and 239 /24s
Percentage of available APNIC address space announced: 74.9
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: 121025
Total ARIN prefixes after maximum aggregation: 66367
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 90281
Unique aggregates announced from the ARIN address blocks: 34763
ARIN Region origin ASes present in the Internet Routing Table: 12214
ARIN Prefixes per ASN: 7.39
ARIN Region origin ASes announcing only one prefix: 4729
ARIN Region transit ASes present in the Internet Routing Table: 1190
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 359061249
Equivalent to 21 /8s, 102 /16s and 215 /24s
Percentage of available ARIN address space announced: 73.8
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
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: 56175
Total RIPE prefixes after maximum aggregation: 34004
RIPE Deaggregation factor: 1.65
Prefixes being announced from the RIPE address blocks: 51538
Unique aggregates announced from the RIPE address blocks: 33857
RIPE Region origin ASes present in the Internet Routing Table: 11440
RIPE Prefixes per ASN: 4.51
RIPE Region origin ASes announcing only one prefix: 5970
RIPE Region transit ASes present in the Internet Routing Table: 1760
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 29
Number of RIPE addresses announced to Internet: 360761408
Equivalent to 21 /8s, 128 /16s and 200 /24s
Percentage of available RIPE address space announced: 82.7
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: 21976
Total LACNIC prefixes after maximum aggregation: 5116
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 20195
Unique aggregates announced from the LACNIC address blocks: 10352
LACNIC Region origin ASes present in the Internet Routing Table: 957
LACNIC Prefixes per ASN: 21.10
LACNIC Region origin ASes announcing only one prefix: 300
LACNIC Region transit ASes present in the Internet Routing Table: 167
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 27
Number of LACNIC addresses announced to Internet: 52396424
Equivalent to 3 /8s, 31 /16s and 129 /24s
Percentage of available LACNIC address space announced: 52.1
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: 3894
Total AfriNIC prefixes after maximum aggregation: 1205
AfriNIC Deaggregation factor: 3.23
Prefixes being announced from the AfriNIC address blocks: 4143
Unique aggregates announced from the AfriNIC address blocks: 1868
AfriNIC Region origin ASes present in the Internet Routing Table: 241
AfriNIC Prefixes per ASN: 17.19
AfriNIC Region origin ASes announcing only one prefix: 76
AfriNIC Region transit ASes present in the Internet Routing Table: 50
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12298752
Equivalent to 0 /8s, 187 /16s and 170 /24s
Percentage of available AfriNIC address space announced: 36.7
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 2061 3134 41 China Education and Research
4755 1641 387 88 Videsh Sanchar Nigam Ltd. Aut
9498 1178 550 61 BHARTI BT INTERNET LTD.
9583 1117 111 412 Sify Limited
17488 1099 72 73 Hathway IP Over Cable Interne
4134 835 12917 322 CHINANET-BACKBONE
23577 834 33 741 Korea Telecom (ATM-MPLS)
4766 815 6005 344 Korea Telecom (KIX)
18101 691 167 36 Reliance Infocom Ltd Internet
9829 599 451 13 BSNL National Internet Backbo
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 2208 3104 182 bellsouth.net, inc.
4323 1473 1045 380 Time Warner Telecom
2386 1440 644 879 AT&T Data Communications Serv
3549 1430 540 207 Global Crossing
7018 1378 9902 983 AT&T WorldNet Services
11492 1228 148 12 Cable One
1803 1194 7 942 SPRINT
7011 1051 291 584 Citizens Utilities
18566 1044 296 10 Covad Communications
20115 1039 1062 563 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 412 1772 369 TDC Tele Danmark
3301 338 1460 308 TeliaNet Sweden
8452 327 188 7 TEDATA
3320 316 7043 265 Deutsche Telekom AG
8866 316 77 21 Bulgarian Telecommunication C
5462 294 666 26 Telewest Broadband
3215 285 2742 89 France Telecom Transpac
8551 283 269 38 Bezeq International
680 274 2047 264 DFN-IP service G-WiN
9155 271 45 12 QualityNet AS number
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 1646 229 68 Telecom Argentina Stet-France
8151 1238 2464 227 UniNet S.A. de C.V.
11830 603 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 413 85 46 ENTEL CHILE S.A.
11172 412 118 69 Servicios Alestra S.A de C.V
10620 387 99 78 TVCABLE BOGOTA
14117 375 23 9 Telefonica del Sur S.A.
16735 366 92 11 Companhia de Telecomunicacoes
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 472 61 28 LINKdotNET AS number
3741 282 853 223 The Internet Solution
20858 224 34 3 EgyNet
2018 192 189 82 Tertiary Education Network
5713 163 558 99 Telkom SA Ltd
6713 145 136 12 Itissalat Al-MAGHRIB
33783 134 10 12 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
29571 103 13 8 Ci Telecom Autonomous system
33776 100 6 3 Starcomms Nigeria Limited
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 2208 3104 182 bellsouth.net, inc.
4538 2061 3134 41 China Education and Research
7303 1646 229 68 Telecom Argentina Stet-France
4755 1641 387 88 Videsh Sanchar Nigam Ltd. Aut
4323 1473 1045 380 Time Warner Telecom
2386 1440 644 879 AT&T Data Communications Serv
3549 1430 540 207 Global Crossing
7018 1378 9902 983 AT&T WorldNet Services
8151 1238 2464 227 UniNet S.A. de C.V.
11492 1228 148 12 Cable One
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 2061 2020 China Education and Research
7303 1646 1578 Telecom Argentina Stet-France
4755 1641 1553 Videsh Sanchar Nigam Ltd. Aut
3549 1430 1223 Global Crossing
11492 1228 1216 Cable One
9498 1178 1117 BHARTI BT INTERNET LTD.
4323 1473 1093 Time Warner Telecom
18566 1044 1034 Covad Communications
17488 1099 1026 Hathway IP Over Cable Interne
8151 1238 1011 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
16927 UNALLOCATED 12.0.252.0/23 701 UUNET Technologies,
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
172.30.254.0/24 4771 Netgate
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 /8:20 /9:9 /10:16 /11:43 /12:143
/13:284 /14:519 /15:1035 /16:10021 /17:4393 /18:7395
/19:15613 /20:18358 /21:17755 /22:22827 /23:23392 /24:138970
/25:878 /26:1109 /27:369 /28:710 /29:354 /30:211
/31:0 /32:217
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 1356 2208 bellsouth.net, inc.
11492 1210 1228 Cable One
1803 1172 1194 SPRINT
7303 1150 1646 Telecom Argentina Stet-France
2386 1138 1440 AT&T Data Communications Serv
3549 1057 1430 Global Crossing
18566 1025 1044 Covad Communications
4755 990 1641 Videsh Sanchar Nigam Ltd. Aut
4538 975 2061 China Education and Research
9583 971 1117 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:115 12:2066 13:1 14:1 15:22
16:3 17:5 18:13 20:37 24:1075 25:1
32:199 33:3 38:437 40:93 41:636 43:1
44:2 47:12 52:3 55:4 56:3 57:46
58:577 59:507 60:443 61:1011 62:1146 63:1956
64:3570 65:2412 66:3752 67:1213 68:694 69:2253
70:684 71:126 72:1817 73:5 74:995 75:218
76:313 77:726 78:701 79:190 80:926 81:844
82:572 83:399 84:572 85:1009 86:422 87:691
88:315 89:1250 90:12 91:1281 92:181 93:528
96:32 97:22 98:194 99:3 100:1 111:1
114:20 116:670 117:339 118:141 119:451 120:58
121:533 122:786 123:346 124:847 125:1148 128:327
129:202 130:131 131:401 132:67 133:9 134:177
135:33 136:219 137:91 138:151 139:78 140:493
141:99 142:403 143:327 144:352 145:51 146:375
147:154 148:507 149:192 150:130 151:193 152:144
153:136 154:10 155:243 156:174 157:275 158:168
159:230 160:257 161:114 162:232 163:184 164:530
165:458 166:332 167:329 168:617 169:131 170:448
171:29 172:11 189:209 190:2251 192:5809 193:4094
194:3219 195:2506 196:1076 198:3750 199:3276 200:5963
201:1604 202:8146 203:7926 204:3982 205:2132 206:2494
207:2812 208:3523 209:3540 210:2899 211:1183 212:1402
213:1628 214:163 215:49 216:4412 217:1197 218:396
219:506 220:1082 221:469 222:368
End of report