Routing Table Report 00:00 GMT Sat 20 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: 290158
Prefixes after maximum aggregation: 131389
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 130916
Total ASes present in the Internet Routing Table: 29319
Prefixes per ASN: 9.90
Origin-only ASes present in the Internet Routing Table: 25374
Origin ASes announcing only one prefix: 12327
Transit ASes present in the Internet Routing Table: 3945
Transit-only ASes present in the Internet Routing Table: 94
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 27
Max AS path prepend of ASN (13791) 17
Prefixes from unregistered ASNs in the Routing Table: 574
Unregistered ASNs in the Routing Table: 221
Number of 32-bit ASNs allocated by the RIRs: 60
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: 773
Number of addresses announced to Internet: 1922359222
Equivalent to 114 /8s, 148 /16s and 223 /24s
Percentage of available address space announced: 51.9
Percentage of allocated address space announced: 63.0
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 73.6
Total number of prefixes smaller than registry allocations: 136674
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 67698
Total APNIC prefixes after maximum aggregation: 22824
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 64719
Unique aggregates announced from the APNIC address blocks: 26103
APNIC Region origin ASes present in the Internet Routing Table: 3392
APNIC Prefixes per ASN: 19.08
APNIC Region origin ASes announcing only one prefix: 916
APNIC Region transit ASes present in the Internet Routing Table: 547
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 376510112
Equivalent to 22 /8s, 113 /16s and 22 /24s
Percentage of available APNIC address space announced: 80.1
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: 128364
Total ARIN prefixes after maximum aggregation: 66111
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 95745
Unique aggregates announced from the ARIN address blocks: 35391
ARIN Region origin ASes present in the Internet Routing Table: 12457
ARIN Prefixes per ASN: 7.69
ARIN Region origin ASes announcing only one prefix: 4780
ARIN Region transit ASes present in the Internet Routing Table: 1242
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 364769409
Equivalent to 21 /8s, 189 /16s and 240 /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: 64589
Total RIPE prefixes after maximum aggregation: 35346
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 60109
Unique aggregates announced from the RIPE address blocks: 35765
RIPE Region origin ASes present in the Internet Routing Table: 11910
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 6226
RIPE Region transit ASes present in the Internet Routing Table: 1859
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 372347776
Equivalent to 22 /8s, 49 /16s and 147 /24s
Percentage of available RIPE address space announced: 85.4
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: 24846
Total LACNIC prefixes after maximum aggregation: 5371
LACNIC Deaggregation factor: 4.63
Prefixes being announced from the LACNIC address blocks: 23030
Unique aggregates announced from the LACNIC address blocks: 11084
LACNIC Region origin ASes present in the Internet Routing Table: 1000
LACNIC Prefixes per ASN: 23.03
LACNIC Region origin ASes announcing only one prefix: 321
LACNIC Region transit ASes present in the Internet Routing Table: 175
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 27
Number of LACNIC addresses announced to Internet: 56726030
Equivalent to 3 /8s, 97 /16s and 146 /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: 4088
Total AfriNIC prefixes after maximum aggregation: 1271
AfriNIC Deaggregation factor: 3.22
Prefixes being announced from the AfriNIC address blocks: 4410
Unique aggregates announced from the AfriNIC address blocks: 2029
AfriNIC Region origin ASes present in the Internet Routing Table: 261
AfriNIC Prefixes per ASN: 16.90
AfriNIC Region origin ASes announcing only one prefix: 84
AfriNIC Region transit ASes present in the Internet Routing Table: 53
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12719616
Equivalent to 0 /8s, 194 /16s and 22 /24s
Percentage of available AfriNIC address space announced: 37.9
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 3381 3214 44 China Education and Research
4134 2766 13651 345 CHINANET-BACKBONE
4755 1735 578 91 Videsh Sanchar Nigam Ltd. Aut
17488 1384 94 101 Hathway IP Over Cable Interne
9583 1114 86 472 Sify Limited
4766 845 6407 360 Korea Telecom (KIX)
23577 823 33 728 Korea Telecom (ATM-MPLS)
18101 766 152 51 Reliance Infocom Ltd Internet
4780 719 353 61 Digital United Inc.
9498 693 291 55 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 4321 3416 339 bellsouth.net, inc.
7132 2230 9295 331 SBC Internet Services
6298 1980 316 736 Cox Communicatons
20115 1711 1428 713 Charter Communications
1785 1656 710 156 AppliedTheory Corporation
2386 1551 677 900 AT&T Data Communications Serv
4323 1517 1065 368 Time Warner Telecom
7018 1511 9888 978 AT&T WorldNet Services
19262 1446 3585 173 Verizon Global Networks
1803 1306 9 1031 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 1577 2756 106 France Telecom Transpac
3320 645 7063 273 Deutsche Telekom AG
3352 571 2044 43 Ibernet, Internet Access Netw
3292 530 1777 378 TDC Tele Danmark
9121 461 1445 27 TTnet Autonomous System
3269 457 3453 75 TELECOM ITALIA
5617 430 967 20 TPNET
5462 369 794 27 Telewest Broadband
3301 353 1444 303 TeliaNet Sweden
30890 329 87 175 SC Kappa Invexim SRL
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
8151 1793 2828 220 UniNet S.A. de C.V.
7303 1717 241 72 Telecom Argentina Stet-France
11830 669 299 9 Instituto Costarricense de El
22047 593 270 14 VTR PUNTO NET S.A.
7738 468 730 27 Telecomunicacoes da Bahia S.A
28573 442 443 28 NET Servicos de Comunicao S.A
10620 429 105 60 TVCABLE BOGOTA
16814 426 27 10 NSS, S.A.
6471 425 85 48 ENTEL CHILE S.A.
16735 415 92 10 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 516 67 32 LINKdotNET AS number
20858 406 34 3 EgyNet
3741 264 855 223 The Internet Solution
2018 232 215 139 Tertiary Education Network
6713 146 135 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 4321 3416 339 bellsouth.net, inc.
4538 3381 3214 44 China Education and Research
4134 2766 13651 345 CHINANET-BACKBONE
7132 2230 9295 331 SBC Internet Services
6298 1980 316 736 Cox Communicatons
8151 1793 2828 220 UniNet S.A. de C.V.
4755 1735 578 91 Videsh Sanchar Nigam Ltd. Aut
7303 1717 241 72 Telecom Argentina Stet-France
20115 1711 1428 713 Charter Communications
1785 1656 710 156 AppliedTheory Corporation
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 3381 3337 China Education and Research
4134 2766 2421 CHINANET-BACKBONE
7132 2230 1899 SBC Internet Services
7303 1717 1645 Telecom Argentina Stet-France
4755 1735 1644 Videsh Sanchar Nigam Ltd. Aut
8151 1793 1573 UniNet S.A. de C.V.
1785 1656 1500 AppliedTheory Corporation
3215 1577 1471 France Telecom Transpac
17488 1384 1283 Hathway IP Over Cable Interne
19262 1446 1273 Verizon Global Networks
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
24.75.116.0/22 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 /8:19 /9:9 /10:17 /11:46 /12:148
/13:298 /14:535 /15:1081 /16:10168 /17:4427 /18:7764
/19:31354 /20:19393 /21:18731 /22:24125 /23:24901 /24:143850
/25:620 /26:708 /27:373 /28:766 /29:379 /30:224
/31:0 /32:222
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2845 4321 bellsouth.net, inc.
6298 1955 1980 Cox Communicatons
4538 1766 3381 China Education and Research
1803 1283 1306 SPRINT
7303 1244 1717 Telecom Argentina Stet-France
2386 1232 1551 AT&T Data Communications Serv
11492 1193 1212 Cable One
17488 1191 1384 Hathway IP Over Cable Interne
1785 1125 1656 AppliedTheory Corporation
6478 1063 1170 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 12:2157 13:2 15:20 16:3
17:5 18:13 20:35 24:1084 32:197 38:496
40:91 41:700 43:1 44:2 47:12 52:3
55:3 56:3 57:48 58:560 59:593 60:451
61:979 62:1309 63:1966 64:3233 65:2364 66:3501
67:1237 68:780 69:2313 70:848 71:172 72:2025
73:7 74:1177 75:167 76:277 77:796 78:827
79:256 80:956 81:851 82:612 83:378 84:579
85:1016 86:400 87:728 88:337 89:1356 90:21
91:1507 92:265 93:879 94:147 96:66 97:80
98:324 99:8 114:104 115:48 116:1006 117:377
118:234 119:482 120:88 121:611 122:857 123:448
124:854 125:1244 128:358 129:204 130:134 131:411
132:70 133:9 134:179 135:32 136:223 137:96
138:142 139:100 140:503 141:102 142:408 143:303
144:324 145:51 146:370 147:157 148:517 149:297
150:128 151:182 152:150 153:143 154:10 155:281
156:175 157:300 158:170 159:300 160:275 161:137
162:256 163:150 164:515 165:504 166:383 167:331
168:635 169:143 170:469 171:33 172:10 173:33
186:1 187:10 188:1 189:653 190:2503 192:5819
193:4247 194:3365 195:2654 196:995 198:3738 199:3315
200:5934 201:1659 202:8283 203:8095 204:3942 205:2149
206:2363 207:2689 208:3604 209:3393 210:2990 211:1256
212:1471 213:1663 214:178 215:50 216:4326 217:1223
218:402 219:525 220:1069 221:416 222:441
End of report