Routing Table Report 00:00 GMT Thu 04 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: 286384
Prefixes after maximum aggregation: 130848
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 129751
Total ASes present in the Internet Routing Table: 29076
Prefixes per ASN: 9.85
Origin-only ASes present in the Internet Routing Table: 25241
Origin ASes announcing only one prefix: 12213
Transit ASes present in the Internet Routing Table: 3835
Transit-only ASes present in the Internet Routing Table: 90
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 30
Max AS path prepend of ASN (13791) 17
Prefixes from unregistered ASNs in the Routing Table: 580
Unregistered ASNs in the Routing Table: 222
Number of 32-bit ASNs allocated by the RIRs: 59
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: 773
Number of addresses announced to Internet: 1914944758
Equivalent to 114 /8s, 35 /16s and 188 /24s
Percentage of available address space announced: 51.7
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: 73.4
Total number of prefixes smaller than registry allocations: 136160
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64740
Total APNIC prefixes after maximum aggregation: 22651
APNIC Deaggregation factor: 2.86
Prefixes being announced from the APNIC address blocks: 61782
Unique aggregates announced from the APNIC address blocks: 25949
APNIC Region origin ASes present in the Internet Routing Table: 3367
APNIC Prefixes per ASN: 18.35
APNIC Region origin ASes announcing only one prefix: 910
APNIC Region transit ASes present in the Internet Routing Table: 530
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 375321760
Equivalent to 22 /8s, 94 /16s and 244 /24s
Percentage of available APNIC address space announced: 79.9
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: 129252
Total ARIN prefixes after maximum aggregation: 66205
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 96919
Unique aggregates announced from the ARIN address blocks: 35108
ARIN Region origin ASes present in the Internet Routing Table: 12428
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 4757
ARIN Region transit ASes present in the Internet Routing Table: 1224
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 362678017
Equivalent to 21 /8s, 158 /16s and 7 /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: 63697
Total RIPE prefixes after maximum aggregation: 34968
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 59250
Unique aggregates announced from the RIPE address blocks: 35265
RIPE Region origin ASes present in the Internet Routing Table: 11733
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 6142
RIPE Region transit ASes present in the Internet Routing Table: 1804
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 370289472
Equivalent to 22 /8s, 18 /16s and 43 /24s
Percentage of available RIPE address space announced: 84.9
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: 24047
Total LACNIC prefixes after maximum aggregation: 5298
LACNIC Deaggregation factor: 4.54
Prefixes being announced from the LACNIC address blocks: 22295
Unique aggregates announced from the LACNIC address blocks: 10854
LACNIC Region origin ASes present in the Internet Routing Table: 994
LACNIC Prefixes per ASN: 22.43
LACNIC Region origin ASes announcing only one prefix: 319
LACNIC Region transit ASes present in the Internet Routing Table: 171
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 54897422
Equivalent to 3 /8s, 69 /16s and 171 /24s
Percentage of available LACNIC address space announced: 54.5
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: 4069
Total AfriNIC prefixes after maximum aggregation: 1255
AfriNIC Deaggregation factor: 3.24
Prefixes being announced from the AfriNIC address blocks: 4395
Unique aggregates announced from the AfriNIC address blocks: 2000
AfriNIC Region origin ASes present in the Internet Routing Table: 257
AfriNIC Prefixes per ASN: 17.10
AfriNIC Region origin ASes announcing only one prefix: 85
AfriNIC Region transit ASes present in the Internet Routing Table: 53
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 12677376
Equivalent to 0 /8s, 193 /16s and 113 /24s
Percentage of available AfriNIC address space announced: 37.8
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 3306 3214 44 China Education and Research
4755 1721 579 93 Videsh Sanchar Nigam Ltd. Aut
17488 1366 90 103 Hathway IP Over Cable Interne
9583 1109 89 490 Sify Limited
4134 877 13627 342 CHINANET-BACKBONE
4766 843 6407 358 Korea Telecom (KIX)
23577 824 33 729 Korea Telecom (ATM-MPLS)
4780 718 353 61 Digital United Inc.
18101 714 167 29 Reliance Infocom Ltd Internet
9498 681 291 53 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 4418 3416 336 bellsouth.net, inc.
6298 1970 315 759 Cox Communicatons
1785 1648 710 154 AppliedTheory Corporation
19262 1577 3534 167 Verizon Global Networks
20115 1563 1259 701 Charter Communications
2386 1559 692 898 AT&T Data Communications Serv
4323 1500 1071 376 Time Warner Telecom
3549 1492 540 213 Global Crossing
7018 1442 9872 973 AT&T WorldNet Services
1803 1285 8 1014 SPRINT
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
3215 861 2756 106 France Telecom Transpac
3352 855 2044 43 Ibernet, Internet Access Netw
3320 797 7063 273 Deutsche Telekom AG
3269 725 3389 73 TELECOM ITALIA
3292 549 1776 374 TDC Tele Danmark
9121 518 1443 26 TTnet Autonomous System
3301 399 1444 305 TeliaNet Sweden
5462 374 666 26 Telewest Broadband
2856 368 2303 154 BTnet UK Regional network
8452 339 188 11 TEDATA
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 1724 239 67 Telecom Argentina Stet-France
8151 1657 2604 233 UniNet S.A. de C.V.
11830 667 299 9 Instituto Costarricense de El
22047 591 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 422 85 48 ENTEL CHILE S.A.
10620 419 103 63 TVCABLE BOGOTA
16735 414 92 11 Companhia de Telecomunicacoes
11172 408 118 71 Servicios Alestra S.A de C.V
28573 384 441 29 NET Servicos de Comunicao 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 514 65 35 LINKdotNET AS number
20858 402 34 3 EgyNet
3741 265 855 223 The Internet Solution
2018 233 214 138 Tertiary Education Network
6713 145 135 11 Itissalat Al-MAGHRIB
33783 137 10 13 EEPAD TISP TELECOM & INTERNET
5536 120 8 17 Internet Egypt Network
5713 118 555 68 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 4418 3416 336 bellsouth.net, inc.
4538 3306 3214 44 China Education and Research
6298 1970 315 759 Cox Communicatons
7303 1724 239 67 Telecom Argentina Stet-France
4755 1721 579 93 Videsh Sanchar Nigam Ltd. Aut
8151 1657 2604 233 UniNet S.A. de C.V.
1785 1648 710 154 AppliedTheory Corporation
19262 1577 3534 167 Verizon Global Networks
20115 1563 1259 701 Charter Communications
2386 1559 692 898 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 3306 3262 China Education and Research
7303 1724 1657 Telecom Argentina Stet-France
4755 1721 1628 Videsh Sanchar Nigam Ltd. Aut
1785 1648 1494 AppliedTheory Corporation
8151 1657 1424 UniNet S.A. de C.V.
19262 1577 1410 Verizon Global Networks
3549 1492 1279 Global Crossing
17488 1366 1263 Hathway IP Over Cable Interne
6298 1970 1211 Cox Communicatons
11492 1211 1189 Cable One
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
24.75.160.0/19 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.
63.143.251.0/24 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 /10:17 /11:46 /12:147
/13:297 /14:535 /15:1073 /16:10155 /17:4419 /18:7695
/19:28448 /20:19123 /21:18589 /22:23946 /23:24722 /24:143235
/25:875 /26:1112 /27:368 /28:742 /29:377 /30:225
/31:0 /32:210
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2849 4418 bellsouth.net, inc.
6298 1945 1970 Cox Communicatons
4538 1762 3306 China Education and Research
1803 1263 1285 SPRINT
2386 1236 1559 AT&T Data Communications Serv
7303 1224 1724 Telecom Argentina Stet-France
11492 1192 1211 Cable One
17488 1174 1366 Hathway IP Over Cable Interne
1785 1120 1648 AppliedTheory Corporation
3549 1095 1492 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:138 12:2161 13:2 14:1 15:22
16:3 17:5 18:13 20:37 24:1072 32:197
38:492 40:92 41:715 43:1 44:2 47:12
52:3 55:3 56:3 57:47 58:559 59:585
60:453 61:970 62:1300 63:1976 64:3391 65:2354
66:3484 67:1229 68:771 69:2301 70:845 71:132
72:2019 73:6 74:1129 75:172 76:290 77:782
78:796 79:249 80:974 81:855 82:587 83:382
84:580 85:972 86:399 87:726 88:338 89:1322
90:43 91:1447 92:253 93:863 94:119 96:64
97:66 98:321 99:7 114:93 115:40 116:1034
117:344 118:202 119:482 120:85 121:605 122:836
123:406 124:852 125:1245 128:356 129:204 130:134
131:410 132:70 133:9 134:178 135:34 136:223
137:94 138:140 139:101 140:501 141:102 142:407
143:289 144:362 145:51 146:382 147:156 148:515
149:293 150:128 151:181 152:148 153:143 154:10
155:284 156:175 157:298 158:163 159:300 160:272
161:137 162:255 163:155 164:516 165:500 166:381
167:333 168:629 169:144 170:455 171:33 172:10
173:33 188:1 189:606 190:2321 192:5816 193:4217
194:3321 195:2582 196:993 198:3736 199:3309 200:5966
201:1681 202:8193 203:8098 204:3943 205:2163 206:2431
207:2753 208:3677 209:3400 210:2984 211:1253 212:1440
213:1648 214:182 215:50 216:4328 217:1218 218:404
219:523 220:1069 221:426 222:445
End of report