Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Oct 17 18:10:14 UTC 2008
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net
For historical data, please see http://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 18 Oct, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 271514
Prefixes after maximum aggregation: 130898
Deaggregation factor: 2.07
Unique aggregates announced to Internet: 131783
Total ASes present in the Internet Routing Table: 29518
Prefixes per ASN: 9.20
Origin-only ASes present in the Internet Routing Table: 25695
Origin ASes announcing only one prefix: 12506
Transit ASes present in the Internet Routing Table: 3823
Transit-only ASes present in the Internet Routing Table: 81
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 104
Max AS path prepend of ASN (43413) 100
Prefixes from unregistered ASNs in the Routing Table: 562
Unregistered ASNs in the Routing Table: 201
Number of 32-bit ASNs allocated by the RIRs: 61
Prefixes from 32-bit ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 752
Number of addresses announced to Internet: 1923950912
Equivalent to 114 /8s, 173 /16s and 41 /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: 73.9
Total number of prefixes smaller than registry allocations: 133641
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 62245
Total APNIC prefixes after maximum aggregation: 23219
APNIC Deaggregation factor: 2.68
Prefixes being announced from the APNIC address blocks: 59212
Unique aggregates announced from the APNIC address blocks: 26686
APNIC Region origin ASes present in the Internet Routing Table: 3404
APNIC Prefixes per ASN: 17.39
APNIC Region origin ASes announcing only one prefix: 906
APNIC Region transit ASes present in the Internet Routing Table: 537
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 379108256
Equivalent to 22 /8s, 152 /16s and 187 /24s
Percentage of available APNIC address space announced: 80.7
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: 123346
Total ARIN prefixes after maximum aggregation: 64844
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 92672
Unique aggregates announced from the ARIN address blocks: 35033
ARIN Region origin ASes present in the Internet Routing Table: 12538
ARIN Prefixes per ASN: 7.39
ARIN Region origin ASes announcing only one prefix: 4859
ARIN Region transit ASes present in the Internet Routing Table: 1195
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 363895840
Equivalent to 21 /8s, 176 /16s and 156 /24s
Percentage of available ARIN address space announced: 74.8
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: 59495
Total RIPE prefixes after maximum aggregation: 35663
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 54642
Unique aggregates announced from the RIPE address blocks: 36307
RIPE Region origin ASes present in the Internet Routing Table: 12030
RIPE Prefixes per ASN: 4.54
RIPE Region origin ASes announcing only one prefix: 6326
RIPE Region transit ASes present in the Internet Routing Table: 1824
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 104
Number of RIPE addresses announced to Internet: 375674272
Equivalent to 22 /8s, 100 /16s and 85 /24s
Percentage of available RIPE address space announced: 86.1
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: 21833
Total LACNIC prefixes after maximum aggregation: 5417
LACNIC Deaggregation factor: 4.03
Prefixes being announced from the LACNIC address blocks: 19891
Unique aggregates announced from the LACNIC address blocks: 11115
LACNIC Region origin ASes present in the Internet Routing Table: 1014
LACNIC Prefixes per ASN: 19.62
LACNIC Region origin ASes announcing only one prefix: 334
LACNIC Region transit ASes present in the Internet Routing Table: 171
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 57394944
Equivalent to 3 /8s, 107 /16s and 199 /24s
Percentage of available LACNIC address space announced: 57.0
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: 4036
Total AfriNIC prefixes after maximum aggregation: 1316
AfriNIC Deaggregation factor: 3.07
Prefixes being announced from the AfriNIC address blocks: 4290
Unique aggregates announced from the AfriNIC address blocks: 2100
AfriNIC Region origin ASes present in the Internet Routing Table: 260
AfriNIC Prefixes per ASN: 16.50
AfriNIC Region origin ASes announcing only one prefix: 81
AfriNIC Region transit ASes present in the Internet Routing Table: 52
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 12856576
Equivalent to 0 /8s, 196 /16s and 45 /24s
Percentage of available AfriNIC address space announced: 38.3
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
4755 1483 518 196 TATA Communications formerly
17488 1388 96 103 Hathway IP Over Cable Interne
9583 1104 86 474 Sify Limited
4766 879 6407 360 Korea Telecom (KIX)
4134 844 13647 345 CHINANET-BACKBONE
23577 811 34 693 Korea Telecom (ATM-MPLS)
18101 781 161 65 Reliance Infocom Ltd Internet
4780 717 355 62 Digital United Inc.
9498 688 295 53 BHARTI BT INTERNET LTD.
4808 627 1164 142 CNCGROUP IP network: China169
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4301 3416 339 bellsouth.net, inc.
209 3075 4033 623 Qwest
6298 2010 319 714 Cox Communicatons
20115 1925 1426 718 Charter Communications
1785 1678 717 155 PaeTec Communications, Inc.
2386 1589 699 896 AT&T Data Communications Serv
4323 1550 1083 373 Time Warner Telecom
7018 1413 5859 984 AT&T WorldNet Services
6478 1318 273 198 AT&T Worldnet Services
11492 1212 152 11 Cable One
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 434 1777 385 TDC Tele Danmark
30890 348 94 188 SC Kappa Invexim SRL
3215 327 2756 106 France Telecom Transpac
3301 327 1428 298 TeliaNet Sweden
3320 326 7063 275 Deutsche Telekom AG
8866 326 111 23 Bulgarian Telecommunication C
5462 301 794 27 Telewest Broadband
25233 295 45 27 Awalnet
8452 294 188 11 TEDATA
8551 287 270 37 Bezeq International
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1411 2849 221 UniNet S.A. de C.V.
11830 669 299 9 Instituto Costarricense de El
22047 564 270 14 VTR PUNTO NET S.A.
10620 505 122 61 TVCABLE BOGOTA
7303 493 242 69 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
6471 419 85 48 ENTEL CHILE S.A.
11172 405 118 72 Servicios Alestra S.A de C.V
28573 349 460 23 NET Servicos de Comunicao S.A
14117 343 23 9 Telefonica del Sur S.A.
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 544 72 40 LINKdotNET AS number
3741 269 856 225 The Internet Solution
2018 233 215 139 Tertiary Education Network
20858 213 34 3 EgyNet
6713 143 135 11 Itissalat Al-MAGHRIB
33783 137 10 13 EEPAD TISP TELECOM & INTERNET
5536 124 8 20 Internet Egypt Network
33776 116 6 3 Starcomms Nigeria Limited
5713 115 555 65 Telkom SA Ltd
29571 112 13 9 Ci Telecom Autonomous system
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4301 3416 339 bellsouth.net, inc.
209 3075 4033 623 Qwest
6298 2010 319 714 Cox Communicatons
20115 1925 1426 718 Charter Communications
1785 1678 717 155 PaeTec Communications, Inc.
2386 1589 699 896 AT&T Data Communications Serv
4323 1550 1083 373 Time Warner Telecom
4755 1483 518 196 TATA Communications formerly
7018 1413 5859 984 AT&T WorldNet Services
8151 1411 2849 221 UniNet S.A. de C.V.
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
209 3075 2452 Qwest
1785 1678 1523 PaeTec Communications, Inc.
6298 2010 1296 Cox Communicatons
4755 1483 1287 TATA Communications formerly
17488 1388 1285 Hathway IP Over Cable Interne
20115 1925 1207 Charter Communications
11492 1212 1201 Cable One
8151 1411 1190 UniNet S.A. de C.V.
4323 1550 1177 Time Warner Telecom
6478 1318 1120 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/current/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 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 3549 Global Crossing
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.75.116.0/22 10796 ServiceCo LLC - Road Runner
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
62.61.221.0/24 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/current/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 /14:536 /15:1066 /16:10125 /17:4399 /18:7590
/19:16364 /20:19244 /21:18707 /22:23677 /23:24603 /24:141889
/25:820 /26:999 /27:851 /28:90 /29:9 /30:1
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2847 4301 bellsouth.net, inc.
6298 1984 2010 Cox Communicatons
209 1796 3075 Qwest
2386 1268 1589 AT&T Data Communications Serv
11492 1188 1212 Cable One
17488 1179 1388 Hathway IP Over Cable Interne
1785 1139 1678 PaeTec Communications, Inc.
6478 1104 1318 AT&T Worldnet Services
18566 1040 1059 Covad Communications
20115 1033 1925 Charter Communications
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:12 8:141 12:2186 13:2 15:22 16:3
17:5 18:13 20:38 24:1148 31:1 32:58
38:511 40:92 41:708 43:1 44:2 47:12
52:3 55:3 56:3 57:26 58:521 59:530
60:452 61:983 62:1092 63:2037 64:3240 65:2429
66:3519 67:1286 68:805 69:2346 70:861 71:276
72:2056 73:7 74:1254 75:213 76:279 77:924
78:810 79:279 80:906 81:864 82:587 83:402
84:592 85:1036 86:501 87:706 88:325 89:1380
90:23 91:1602 92:270 93:928 94:258 95:3
96:80 97:102 98:350 99:11 113:15 114:110
115:122 116:985 117:378 118:240 119:523 120:93
121:604 122:852 123:446 124:862 125:1195 128:353
129:207 130:135 131:417 132:72 133:9 134:185
135:31 136:223 137:98 138:144 139:81 140:433
141:106 142:401 143:291 144:326 145:51 146:375
147:153 148:530 149:207 150:128 151:208 152:149
153:135 154:10 155:278 156:173 157:301 158:170
159:305 160:275 161:139 162:255 163:133 164:520
165:511 166:363 167:338 168:644 169:145 170:448
171:33 172:10 173:54 187:16 188:1 189:292
190:2317 192:5750 193:4147 194:3260 195:2617 196:1002
198:3735 199:3299 200:5552 201:1424 202:7820 203:8040
204:3925 205:2164 206:2293 207:2764 208:3708 209:3440
210:2566 211:1102 212:1514 213:1614 214:169 215:50
216:4419 217:1244 218:349 219:439 220:1053 221:413
222:298
End of report
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