[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jun 6 18:07:32 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 07 Jun, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 257029
Prefixes after maximum aggregation: 127846
Deaggregation factor: 2.01
Unique aggregates announced to Internet: 126093
Total ASes present in the Internet Routing Table: 28361
Prefixes per ASN: 9.06
Origin-only ASes present in the Internet Routing Table: 24725
Origin ASes announcing only one prefix: 11924
Transit ASes present in the Internet Routing Table: 3636
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 18
Max AS path prepend of ASN (43380) 13
Prefixes from unregistered ASNs in the Routing Table: 623
Unregistered ASNs in the Routing Table: 231
Number of 32-bit ASNs allocated by the RIRs: 49
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 783
Number of addresses announced to Internet: 1875474272
Equivalent to 111 /8s, 201 /16s and 119 /24s
Percentage of available address space announced: 50.6
Percentage of allocated address space announced: 61.4
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 72.1
Total number of prefixes smaller than registry allocations: 124322
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 58989
Total APNIC prefixes after maximum aggregation: 22099
APNIC Deaggregation factor: 2.67
Prefixes being announced from the APNIC address blocks: 55995
Unique aggregates announced from the APNIC address blocks: 24955
APNIC Region origin ASes present in the Internet Routing Table: 3265
APNIC Prefixes per ASN: 17.15
APNIC Region origin ASes announcing only one prefix: 858
APNIC Region transit ASes present in the Internet Routing Table: 505
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 351681440
Equivalent to 20 /8s, 246 /16s and 59 /24s
Percentage of available APNIC address space announced: 74.9
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: 117708
Total ARIN prefixes after maximum aggregation: 64961
ARIN Deaggregation factor: 1.81
Prefixes being announced from the ARIN address blocks: 87645
Unique aggregates announced from the ARIN address blocks: 34442
ARIN Region origin ASes present in the Internet Routing Table: 12183
ARIN Prefixes per ASN: 7.19
ARIN Region origin ASes announcing only one prefix: 4716
ARIN Region transit ASes present in the Internet Routing Table: 1133
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 356844800
Equivalent to 21 /8s, 69 /16s and 5 /24s
Percentage of available ARIN address space announced: 73.3
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: 55629
Total RIPE prefixes after maximum aggregation: 33945
RIPE Deaggregation factor: 1.64
Prefixes being announced from the RIPE address blocks: 50825
Unique aggregates announced from the RIPE address blocks: 34021
RIPE Region origin ASes present in the Internet Routing Table: 11418
RIPE Prefixes per ASN: 4.45
RIPE Region origin ASes announcing only one prefix: 5965
RIPE Region transit ASes present in the Internet Routing Table: 1730
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 360492160
Equivalent to 21 /8s, 124 /16s and 172 /24s
Percentage of available RIPE address space announced: 82.6
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, 47104-48127
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: 20191
Total LACNIC prefixes after maximum aggregation: 5129
LACNIC Deaggregation factor: 3.94
Prefixes being announced from the LACNIC address blocks: 18426
Unique aggregates announced from the LACNIC address blocks: 10351
LACNIC Region origin ASes present in the Internet Routing Table: 953
LACNIC Prefixes per ASN: 19.33
LACNIC Region origin ASes announcing only one prefix: 306
LACNIC Region transit ASes present in the Internet Routing Table: 160
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 52306304
Equivalent to 3 /8s, 30 /16s and 33 /24s
Percentage of available LACNIC address space announced: 52.0
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: 3890
Total AfriNIC prefixes after maximum aggregation: 1194
AfriNIC Deaggregation factor: 3.26
Prefixes being announced from the AfriNIC address blocks: 4136
Unique aggregates announced from the AfriNIC address blocks: 1862
AfriNIC Region origin ASes present in the Internet Routing Table: 241
AfriNIC Prefixes per ASN: 17.16
AfriNIC Region origin ASes announcing only one prefix: 79
AfriNIC Region transit ASes present in the Internet Routing Table: 48
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 12314112
Equivalent to 0 /8s, 187 /16s and 230 /24s
Percentage of available AfriNIC address space announced: 36.7
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 1642 387 89 Videsh Sanchar Nigam Ltd. Aut
9498 1174 550 61 BHARTI BT INTERNET LTD.
9583 1112 111 412 Sify Limited
17488 1078 71 94 Hathway IP Over Cable Interne
4766 849 6006 343 Korea Telecom (KIX)
4134 826 12917 324 CHINANET-BACKBONE
23577 817 34 700 Korea Telecom (ATM-MPLS)
18101 691 167 36 Reliance Infocom Ltd Internet
9829 598 450 12 BSNL National Internet Backbo
1221 549 1919 422 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
6389 2208 3103 182 bellsouth.net, inc.
4323 1471 1045 377 Time Warner Telecom
2386 1439 658 872 AT&T Data Communications Serv
7018 1372 5815 981 AT&T WorldNet Services
11492 1228 148 12 Cable One
7011 1051 291 584 Citizens Utilities
18566 1044 296 10 Covad Communications
20115 1039 1062 563 Charter Communications
1785 1028 510 105 AppliedTheory Corporation
174 979 6837 805 Cogent 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 410 1772 369 TDC Tele Danmark
3301 338 1460 308 TeliaNet Sweden
8452 327 188 7 TEDATA
3320 316 7043 265 Deutsche Telekom AG
8866 311 77 21 Bulgarian Telecommunication C
5462 291 666 26 Telewest Broadband
3215 287 2742 91 France Telecom Transpac
8551 283 269 38 Bezeq International
680 274 2047 264 DFN-IP service G-WiN
9155 271 46 11 QualityNet AS number
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 1238 2464 227 UniNet S.A. de C.V.
11830 603 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
7303 466 229 66 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
6471 413 85 46 ENTEL CHILE S.A.
11172 412 118 69 Servicios Alestra S.A de C.V
10620 383 98 79 TVCABLE BOGOTA
14117 375 23 9 Telefonica del Sur S.A.
20299 338 23 89 NEWCOM AMERICAS
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 472 61 28 LINKdotNET AS number
3741 282 853 223 The Internet Solution
20858 224 34 3 EgyNet
2018 191 189 82 Tertiary Education Network
5713 163 558 99 Telkom SA Ltd
6713 145 136 12 Itissalat Al-MAGHRIB
33783 134 10 12 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
29571 103 13 8 Ci Telecom Autonomous system
33776 100 6 3 Starcomms Nigeria Limited
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 2208 3103 182 bellsouth.net, inc.
4755 1642 387 89 Videsh Sanchar Nigam Ltd. Aut
4323 1471 1045 377 Time Warner Telecom
2386 1439 658 872 AT&T Data Communications Serv
7018 1372 5815 981 AT&T WorldNet Services
8151 1238 2464 227 UniNet S.A. de C.V.
11492 1228 148 12 Cable One
9498 1174 550 61 BHARTI BT INTERNET LTD.
9583 1112 111 412 Sify Limited
17488 1078 71 94 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1642 1553 Videsh Sanchar Nigam Ltd. Aut
11492 1228 1216 Cable One
9498 1174 1113 BHARTI BT INTERNET LTD.
4323 1471 1094 Time Warner Telecom
18566 1044 1034 Covad Communications
8151 1238 1011 UniNet S.A. de C.V.
17488 1078 984 Hathway IP Over Cable Interne
1785 1028 923 AppliedTheory Corporation
22773 946 884 Cox Communications, Inc.
6478 951 799 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 12.0.252.0/23 701 UUNET Technologies,
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
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
27220 UNALLOCATED 12.35.204.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
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 /8:19 /9:9 /10:16 /11:42 /12:142
/13:279 /14:514 /15:1027 /16:9940 /17:4313 /18:7286
/19:15460 /20:17926 /21:17392 /22:21972 /23:22960 /24:135388
/25:805 /26:951 /27:488 /28:81 /29:9 /30:1
/31:0 /32:9
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 1356 2208 bellsouth.net, inc.
11492 1210 1228 Cable One
2386 1137 1439 AT&T Data Communications Serv
18566 1025 1044 Covad Communications
4755 989 1642 Videsh Sanchar Nigam Ltd. Aut
9583 966 1112 Sify Limited
6478 950 951 AT&T Worldnet Services
7011 943 1051 Citizens Utilities
6298 941 956 Cox Communicatons
17488 904 1078 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:109 12:2058 13:1 15:22 16:3
17:5 18:13 20:35 24:1077 25:1 32:62
33:3 38:436 40:93 41:642 43:1 44:2
47:12 52:3 55:4 56:3 57:23 58:514
59:478 60:442 61:996 62:1116 63:1946 64:3324
65:2424 66:3692 67:1209 68:695 69:2245 70:676
71:126 72:1815 73:5 74:994 75:220 76:297
77:704 78:696 79:187 80:909 81:843 82:569
83:390 84:568 85:1019 86:421 87:677 88:314
89:1251 90:11 91:1283 92:180 93:517 96:32
97:23 98:191 99:3 111:1 114:20 116:661
117:327 118:141 119:445 120:57 121:532 122:780
123:340 124:847 125:1139 128:324 129:202 130:131
131:402 132:66 133:9 134:177 135:33 136:219
137:91 138:152 139:71 140:497 141:99 142:401
143:324 144:351 145:51 146:364 147:153 148:506
149:191 150:130 151:193 152:141 153:135 154:10
155:249 156:174 157:272 158:168 159:221 160:256
161:114 162:231 163:187 164:525 165:446 166:317
167:328 168:612 169:131 170:428 171:29 172:10
189:189 190:2068 192:5804 193:4100 194:3209 195:2464
196:1071 198:3748 199:3259 200:5577 201:1420 202:7617
203:7893 204:3973 205:2087 206:2397 207:2749 208:3353
209:3441 210:2520 211:1023 212:1393 213:1623 214:164
215:49 216:4372 217:1188 218:346 219:414 220:1077
221:464 222:306
End of report
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