Routing Table Report 00:00 GMT Mon 29 Sep, 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: 275332
Prefixes after maximum aggregation: 131607
Deaggregation factor: 2.09
Unique aggregates announced to Internet: 131222
Total ASes present in the Internet Routing Table: 29411
Prefixes per ASN: 9.36
Origin-only ASes present in the Internet Routing Table: 25466
Origin ASes announcing only one prefix: 12458
Transit ASes present in the Internet Routing Table: 3945
Transit-only ASes present in the Internet Routing Table: 90
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 26
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 591
Unregistered ASNs in the Routing Table: 224
Number of 32-bit ASNs allocated by the RIRs: 60
Prefixes from 32-bit ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 766
Number of addresses announced to Internet: 1908627512
Equivalent to 113 /8s, 195 /16s and 88 /24s
Percentage of available address space announced: 51.5
Percentage of allocated address space announced: 62.5
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 73.7
Total number of prefixes smaller than registry allocations: 136018
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 65134
Total APNIC prefixes after maximum aggregation: 22893
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 62129
Unique aggregates announced from the APNIC address blocks: 26292
APNIC Region origin ASes present in the Internet Routing Table: 3394
APNIC Prefixes per ASN: 18.31
APNIC Region origin ASes announcing only one prefix: 918
APNIC Region transit ASes present in the Internet Routing Table: 536
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 25
Number of APNIC addresses announced to Internet: 377976096
Equivalent to 22 /8s, 135 /16s and 117 /24s
Percentage of available APNIC address space announced: 80.5
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: 122674
Total ARIN prefixes after maximum aggregation: 66164
ARIN Deaggregation factor: 1.85
Prefixes being announced from the ARIN address blocks: 90868
Unique aggregates announced from the ARIN address blocks: 35309
ARIN Region origin ASes present in the Internet Routing Table: 12499
ARIN Prefixes per ASN: 7.27
ARIN Region origin ASes announcing only one prefix: 4831
ARIN Region transit ASes present in the Internet Routing Table: 1250
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 364797569
Equivalent to 21 /8s, 190 /16s and 94 /24s
Percentage of available ARIN address space announced: 75.0
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: 59403
Total RIPE prefixes after maximum aggregation: 35470
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 55045
Unique aggregates announced from the RIPE address blocks: 35917
RIPE Region origin ASes present in the Internet Routing Table: 11966
RIPE Prefixes per ASN: 4.60
RIPE Region origin ASes announcing only one prefix: 6297
RIPE Region transit ASes present in the Internet Routing Table: 1866
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 373471618
Equivalent to 22 /8s, 66 /16s and 185 /24s
Percentage of available RIPE address space announced: 85.6
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, 47104-49151
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: 23388
Total LACNIC prefixes after maximum aggregation: 5351
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 21532
Unique aggregates announced from the LACNIC address blocks: 11060
LACNIC Region origin ASes present in the Internet Routing Table: 1005
LACNIC Prefixes per ASN: 21.42
LACNIC Region origin ASes announcing only one prefix: 327
LACNIC Region transit ASes present in the Internet Routing Table: 174
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 56800270
Equivalent to 3 /8s, 98 /16s and 180 /24s
Percentage of available LACNIC address space announced: 56.4
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: 4144
Total AfriNIC prefixes after maximum aggregation: 1284
AfriNIC Deaggregation factor: 3.23
Prefixes being announced from the AfriNIC address blocks: 4436
Unique aggregates announced from the AfriNIC address blocks: 2065
AfriNIC Region origin ASes present in the Internet Routing Table: 262
AfriNIC Prefixes per ASN: 16.93
AfriNIC Region origin ASes announcing only one prefix: 85
AfriNIC Region transit ASes present in the Internet Routing Table: 54
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 12758784
Equivalent to 0 /8s, 194 /16s and 175 /24s
Percentage of available AfriNIC address space announced: 38.0
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 3347 3214 44 China Education and Research
4755 1639 578 91 Videsh Sanchar Nigam Ltd. Aut
17488 1393 94 100 Hathway IP Over Cable Interne
9583 1108 86 478 Sify Limited
4134 854 13665 344 CHINANET-BACKBONE
4766 846 6407 360 Korea Telecom (KIX)
23577 815 33 721 Korea Telecom (ATM-MPLS)
18101 781 161 63 Reliance Infocom Ltd Internet
4780 721 353 61 Digital United Inc.
9498 679 295 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 4289 3384 335 bellsouth.net, inc.
6298 1997 318 728 Cox Communicatons
20115 1682 1421 712 Charter Communications
1785 1657 710 156 AppliedTheory Corporation
2386 1548 677 900 AT&T Data Communications Serv
4323 1521 1081 369 Time Warner Telecom
7018 1396 5785 963 AT&T WorldNet Services
1803 1317 9 1042 SPRINT
11492 1212 152 11 Cable One
6478 1190 241 190 AT&T Worldnet Services
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 427 1777 379 TDC Tele Danmark
3301 330 1428 301 TeliaNet Sweden
30890 330 87 175 SC Kappa Invexim SRL
3215 328 2756 107 France Telecom Transpac
3320 324 7063 272 Deutsche Telekom AG
5462 324 794 27 Telewest Broadband
8866 321 79 22 Bulgarian Telecommunication C
8452 316 188 11 TEDATA
35228 303 88 5 Avatar Broadband Limited
8551 287 270 37 Bezeq International
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 1723 242 72 Telecom Argentina Stet-France
8151 1410 2847 222 UniNet S.A. de C.V.
11830 668 299 9 Instituto Costarricense de El
22047 564 270 14 VTR PUNTO NET S.A.
10620 456 113 65 TVCABLE BOGOTA
16814 426 27 10 NSS, S.A.
6471 420 85 48 ENTEL CHILE S.A.
16735 420 92 10 Companhia de Telecomunicacoes
11172 412 118 72 Servicios Alestra S.A de C.V
7738 373 730 27 Telecomunicacoes da Bahia 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 544 71 39 LINKdotNET AS number
20858 401 34 3 EgyNet
3741 264 855 223 The Internet Solution
2018 232 215 139 Tertiary Education Network
6713 144 135 11 Itissalat Al-MAGHRIB
33783 135 10 13 EEPAD TISP TELECOM & INTERNET
5536 119 7 22 Internet Egypt Network
5713 119 555 69 Telkom SA Ltd
33776 116 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
6389 4289 3384 335 bellsouth.net, inc.
4538 3347 3214 44 China Education and Research
6298 1997 318 728 Cox Communicatons
7303 1723 242 72 Telecom Argentina Stet-France
20115 1682 1421 712 Charter Communications
1785 1657 710 156 AppliedTheory Corporation
4755 1639 578 91 Videsh Sanchar Nigam Ltd. Aut
2386 1548 677 900 AT&T Data Communications Serv
4323 1521 1081 369 Time Warner Telecom
8151 1410 2847 222 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 3347 3303 China Education and Research
7303 1723 1651 Telecom Argentina Stet-France
4755 1639 1548 Videsh Sanchar Nigam Ltd. Aut
1785 1657 1501 AppliedTheory Corporation
17488 1393 1293 Hathway IP Over Cable Interne
6298 1997 1269 Cox Communicatons
11492 1212 1201 Cable One
8151 1410 1188 UniNet S.A. de C.V.
4323 1521 1152 Time Warner Telecom
18566 1053 1043 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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
32326 UNALLOCATED 12.40.49.0/24 3549 Global Crossing
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
24.75.116.0/22 10796 ServiceCo 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
63.140.213.0/24 22555 Universal Talkware Corporatio
63.143.71.0/24 701 UUNET Technologies, Inc.
63.143.115.0/24 701 UUNET Technologies, Inc.
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 /8:18 /9:9 /10:17 /11:46 /12:148
/13:299 /14:537 /15:1070 /16:10199 /17:4431 /18:7628
/19:16284 /20:19427 /21:18782 /22:24255 /23:24971 /24:143873
/25:630 /26:711 /27:381 /28:771 /29:389 /30:233
/31:0 /32:223
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2843 4289 bellsouth.net, inc.
6298 1971 1997 Cox Communicatons
4538 1772 3347 China Education and Research
1803 1294 1317 SPRINT
7303 1251 1723 Telecom Argentina Stet-France
2386 1229 1548 AT&T Data Communications Serv
17488 1200 1393 Hathway IP Over Cable Interne
11492 1188 1212 Cable One
1785 1126 1657 AppliedTheory Corporation
6478 1082 1190 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:141 12:2178 13:2 15:22 16:3
17:5 18:13 20:35 24:1080 32:196 38:502
40:92 41:703 43:1 44:2 47:12 52:3
55:3 56:3 57:49 58:554 59:595 60:452
61:992 62:1308 63:1966 64:3236 65:2372 66:3512
67:1250 68:790 69:2319 70:856 71:168 72:2053
73:7 74:1205 75:161 76:276 77:796 78:840
79:250 80:949 81:862 82:613 83:378 84:584
85:1005 86:398 87:728 88:338 89:1366 90:21
91:1547 92:267 93:895 94:182 96:74 97:83
98:335 99:8 113:1 114:106 115:92 116:1024
117:377 118:237 119:498 120:96 121:621 122:855
123:449 124:856 125:1241 128:357 129:204 130:134
131:415 132:70 133:9 134:176 135:32 136:223
137:96 138:142 139:89 140:506 141:103 142:408
143:291 144:327 145:51 146:370 147:159 148:520
149:297 150:128 151:181 152:145 153:143 154:10
155:281 156:171 157:302 158:168 159:305 160:275
161:138 162:256 163:154 164:508 165:505 166:381
167:330 168:634 169:143 170:476 171:33 172:10
173:34 186:1 187:16 188:1 189:369 190:2510
192:5828 193:4252 194:3366 195:2659 196:996 198:3712
199:3321 200:5919 201:1594 202:8274 203:8077 204:3940
205:2154 206:2358 207:2693 208:3648 209:3403 210:2996
211:1252 212:1478 213:1663 214:176 215:50 216:4319
217:1228 218:409 219:525 220:1070 221:414 222:415
End of report
