[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 11 18:07:27 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 12 Apr, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 252904
Prefixes after maximum aggregation: 126821
Deaggregation factor: 1.99
Unique aggregates announced to Internet: 121965
Total ASes present in the Internet Routing Table: 27875
Prefixes per ASN: 9.07
Origin-only ASes present in the Internet Routing Table: 24291
Origin ASes announcing only one prefix: 11291
Transit ASes present in the Internet Routing Table: 3584
Transit-only ASes present in the Internet Routing Table: 84
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 19
Max AS path prepend of ASN (43380) 13
Prefixes from unregistered ASNs in the Routing Table: 25207
Unregistered ASNs in the Routing Table: 1888
Number of 32-bit ASNs allocated by the RIRs: 45
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: 836
Number of addresses announced to Internet: 1862827616
Equivalent to 111 /8s, 8 /16s and 126 /24s
Percentage of available address space announced: 50.3
Percentage of allocated address space announced: 61.7
Percentage of available address space allocated: 81.4
Percentage of address space in use by end-sites: 71.2
Total number of prefixes smaller than registry allocations: 120992
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 42772
Total APNIC prefixes after maximum aggregation: 13613
APNIC Deaggregation factor: 3.14
Prefixes being announced from the APNIC address blocks: 55035
Unique aggregates announced from the APNIC address blocks: 23927
APNIC Region origin ASes present in the Internet Routing Table: 1919
APNIC Prefixes per ASN: 28.68
APNIC Region origin ASes announcing only one prefix: 555
APNIC Region transit ASes present in the Internet Routing Table: 349
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 342856544
Equivalent to 20 /8s, 111 /16s and 147 /24s
Percentage of available APNIC address space announced: 78.6
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, 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: 107454
Total ARIN prefixes after maximum aggregation: 59183
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 86373
Unique aggregates announced from the ARIN address blocks: 34178
ARIN Region origin ASes present in the Internet Routing Table: 11700
ARIN Prefixes per ASN: 7.38
ARIN Region origin ASes announcing only one prefix: 4553
ARIN Region transit ASes present in the Internet Routing Table: 1044
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 362456384
Equivalent to 21 /8s, 154 /16s and 165 /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
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: 54199
Total RIPE prefixes after maximum aggregation: 33333
RIPE Deaggregation factor: 1.63
Prefixes being announced from the RIPE address blocks: 49410
Unique aggregates announced from the RIPE address blocks: 32107
RIPE Region origin ASes present in the Internet Routing Table: 11166
RIPE Prefixes per ASN: 4.43
RIPE Region origin ASes announcing only one prefix: 5830
RIPE Region transit ASes present in the Internet Routing Table: 1707
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 354345856
Equivalent to 21 /8s, 30 /16s and 227 /24s
Percentage of available RIPE address space announced: 81.2
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
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: 19596
Total LACNIC prefixes after maximum aggregation: 4892
LACNIC Deaggregation factor: 4.01
Prefixes being announced from the LACNIC address blocks: 17971
Unique aggregates announced from the LACNIC address blocks: 9697
LACNIC Region origin ASes present in the Internet Routing Table: 889
LACNIC Prefixes per ASN: 20.21
LACNIC Region origin ASes announcing only one prefix: 276
LACNIC Region transit ASes present in the Internet Routing Table: 154
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 50467072
Equivalent to 3 /8s, 2 /16s and 17 /24s
Percentage of available LACNIC address space announced: 50.1
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: 3675
Total AfriNIC prefixes after maximum aggregation: 1129
AfriNIC Deaggregation factor: 3.26
Prefixes being announced from the AfriNIC address blocks: 4027
Unique aggregates announced from the AfriNIC address blocks: 1683
AfriNIC Region origin ASes present in the Internet Routing Table: 234
AfriNIC Prefixes per ASN: 17.21
AfriNIC Region origin ASes announcing only one prefix: 77
AfriNIC Region transit ASes present in the Internet Routing Table: 44
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 10229760
Equivalent to 0 /8s, 156 /16s and 24 /24s
Percentage of available AfriNIC address space announced: 30.5
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 1627 387 89 Videsh Sanchar Nigam Ltd. Aut
9498 1162 550 60 BHARTI BT INTERNET LTD.
9583 1157 99 211 Sify Limited
17488 1008 68 78 Hathway IP Over Cable Interne
4134 858 12659 319 CHINANET-BACKBONE
4766 853 6006 343 Korea Telecom (KIX)
18101 673 127 52 Reliance Infocom Ltd Internet
4812 613 962 92 China Telecom (Shanghai)
9829 598 450 12 BSNL National Internet Backbo
1221 546 1934 419 Telstra Pty Ltd
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
7018 1443 5934 1022 AT&T WorldNet Services
4323 1428 1029 376 Time Warner Telecom
2386 1380 642 855 AT&T Data Communications Serv
11492 1211 145 55 Cable One
7011 1088 317 619 Citizens Utilities
18566 1042 296 10 Covad Communications
1785 1005 479 107 AppliedTheory Corporation
6197 983 597 507 BellSouth Network Solutions,
174 969 6835 809 Cogent Communications
20115 923 876 512 Charter Communications
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 402 1787 366 TDC Tele Danmark
3301 338 1459 307 TeliaNet Sweden
8452 329 188 7 TEDATA
3320 326 7045 270 Deutsche Telekom AG
5462 292 666 26 Telewest Broadband
8866 292 78 24 Bulgarian Telecommunication C
8551 281 269 37 Bezeq International
3215 279 2679 89 France Telecom Transpac
6746 267 127 244 Dynamic Network Technologies,
8708 261 421 248 Romania Data Systems S.A.
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 1190 2448 220 UniNet S.A. de C.V.
22047 557 270 14 VTR PUNTO NET S.A.
11830 555 299 9 Instituto Costarricense de El
7303 450 220 59 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
11172 411 117 70 Servicios Alestra S.A de C.V
6471 402 85 39 ENTEL CHILE S.A.
10620 399 104 51 TVCABLE BOGOTA
14117 383 25 15 Telefonica del Sur S.A.
10481 310 152 10 Prima 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 463 61 27 LINKdotNET AS number
3741 287 853 223 The Internet Solution
20858 216 34 3 EgyNet
2018 207 256 109 Tertiary Education Network
6713 143 135 11 Itissalat Al-MAGHRIB
33783 134 9 12 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
29571 118 13 8 Ci Telecom Autonomous system
33776 99 6 7 Starcomms Nigeria Limited
24835 89 48 7 RAYA Telecom - Egypt
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 2476 3019 102 bellsouth.net, inc.
23577 1634 34 699 Korea Telecom (ATM-MPLS)
4755 1627 387 89 Videsh Sanchar Nigam Ltd. Aut
7018 1443 5934 1022 AT&T WorldNet Services
4323 1428 1029 376 Time Warner Telecom
2386 1380 642 855 AT&T Data Communications Serv
11492 1211 145 55 Cable One
8151 1190 2448 220 UniNet S.A. de C.V.
9498 1162 550 60 BHARTI BT INTERNET LTD.
9583 1157 99 211 Sify Limited
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1627 1538 Videsh Sanchar Nigam Ltd. Aut
11492 1211 1156 Cable One
9498 1162 1102 BHARTI BT INTERNET LTD.
4323 1428 1052 Time Warner Telecom
18566 1042 1032 Covad Communications
8151 1190 970 UniNet S.A. de C.V.
17676 1016 951 Softbank BB Corp.
9583 1157 946 Sify Limited
23577 1634 935 Korea Telecom (ATM-MPLS)
17488 1008 930 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
14780 UNALLOCATED 4.79.181.0/24 10310 Yahoo!
12180 UNALLOCATED 4.79.248.0/24 1239 Sprint
12180 UNALLOCATED 8.10.16.0/24 3549 Global Crossing
12180 UNALLOCATED 8.10.58.0/23 3549 Global Crossing
14779 UNALLOCATED 8.12.144.0/24 10310 Yahoo!
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
22492 UNALLOCATED 12.2.46.0/24 1239 Sprint
15132 UNALLOCATED 12.9.150.0/24 701 UUNET Technologies,
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications
Complete listing at http://thyme.apnic.net/current/data-badAS
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/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 /8:20 /9:9 /10:16 /11:42 /12:138
/13:280 /14:504 /15:1004 /16:9833 /17:4354 /18:7305
/19:15325 /20:17696 /21:16964 /22:21534 /23:22504 /24:133061
/25:793 /26:910 /27:487 /28:107 /29:9 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1197 1211 Cable One
2386 1082 1380 AT&T Data Communications Serv
18566 1023 1042 Covad Communications
9583 995 1157 Sify Limited
7011 970 1088 Citizens Utilities
4755 965 1627 Videsh Sanchar Nigam Ltd. Aut
6478 905 906 AT&T Worldnet Services
9498 834 1162 BHARTI BT INTERNET LTD.
17488 820 1008 Hathway IP Over Cable Interne
7018 815 1443 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:106 12:1994 13:1 15:20 16:3
17:6 18:13 20:35 24:1055 25:1 32:60
33:4 38:411 40:94 41:633 44:2 47:8
52:3 55:3 56:3 57:22 58:513 59:451
60:405 61:982 62:1085 63:1956 64:3386 65:2371
66:3648 67:1132 68:679 69:2147 70:606 71:125
72:1659 73:6 74:933 75:225 76:286 77:629
78:568 79:142 80:902 81:820 82:601 83:368
84:564 85:986 86:398 87:650 88:320 89:1240
90:11 91:1167 92:247 93:275 96:23 97:16
98:132 99:3 116:597 117:282 118:113 119:383
120:7 121:489 122:745 123:314 124:840 125:1101
128:318 129:200 130:125 131:397 132:65 133:9
134:180 135:32 136:220 137:113 138:147 139:65
140:485 141:109 142:427 143:279 144:345 145:50
146:344 147:134 148:499 149:180 150:128 151:175
152:142 153:127 154:11 155:266 156:207 157:263
158:169 159:224 160:252 161:111 162:210 163:194
164:576 165:436 166:298 167:315 168:612 169:131
170:427 171:28 172:2 189:172 190:1740 192:5789
193:4108 194:3277 195:2390 196:1040 198:3781 199:3236
200:5579 201:1384 202:7576 203:7838 204:4009 205:2100
206:2390 207:2741 208:3255 209:3504 210:2540 211:1041
212:1343 213:1652 214:457 215:48 216:4278 217:1208
218:361 219:408 220:1067 221:397 222:311
End of report
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