[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri May 30 18:07:13 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 31 May, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 256681
Prefixes after maximum aggregation: 127966
Deaggregation factor: 2.01
Unique aggregates announced to Internet: 125823
Total ASes present in the Internet Routing Table: 28326
Prefixes per ASN: 9.06
Origin-only ASes present in the Internet Routing Table: 24711
Origin ASes announcing only one prefix: 11900
Transit ASes present in the Internet Routing Table: 3615
Transit-only ASes present in the Internet Routing Table: 74
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: 626
Unregistered ASNs in the Routing Table: 236
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: 782
Number of addresses announced to Internet: 1874228320
Equivalent to 111 /8s, 182 /16s and 116 /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: 72.0
Total number of prefixes smaller than registry allocations: 123722
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 58811
Total APNIC prefixes after maximum aggregation: 22049
APNIC Deaggregation factor: 2.67
Prefixes being announced from the APNIC address blocks: 55821
Unique aggregates announced from the APNIC address blocks: 24827
APNIC Region origin ASes present in the Internet Routing Table: 3252
APNIC Prefixes per ASN: 17.17
APNIC Region origin ASes announcing only one prefix: 854
APNIC Region transit ASes present in the Internet Routing Table: 502
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 351187872
Equivalent to 20 /8s, 238 /16s and 179 /24s
Percentage of available APNIC address space announced: 74.8
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: 117915
Total ARIN prefixes after maximum aggregation: 65206
ARIN Deaggregation factor: 1.81
Prefixes being announced from the ARIN address blocks: 87447
Unique aggregates announced from the ARIN address blocks: 34419
ARIN Region origin ASes present in the Internet Routing Table: 12183
ARIN Prefixes per ASN: 7.18
ARIN Region origin ASes announcing only one prefix: 4701
ARIN Region transit ASes present in the Internet Routing Table: 1131
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 357844480
Equivalent to 21 /8s, 84 /16s and 70 /24s
Percentage of available ARIN address space announced: 73.5
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: 55345
Total RIPE prefixes after maximum aggregation: 33873
RIPE Deaggregation factor: 1.63
Prefixes being announced from the RIPE address blocks: 50545
Unique aggregates announced from the RIPE address blocks: 33982
RIPE Region origin ASes present in the Internet Routing Table: 11397
RIPE Prefixes per ASN: 4.43
RIPE Region origin ASes announcing only one prefix: 5957
RIPE Region transit ASes present in the Internet Routing Table: 1722
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 359785600
Equivalent to 21 /8s, 113 /16s and 228 /24s
Percentage of available RIPE address space announced: 82.5
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: 20091
Total LACNIC prefixes after maximum aggregation: 5118
LACNIC Deaggregation factor: 3.93
Prefixes being announced from the LACNIC address blocks: 18402
Unique aggregates announced from the LACNIC address blocks: 10322
LACNIC Region origin ASes present in the Internet Routing Table: 951
LACNIC Prefixes per ASN: 19.35
LACNIC Region origin ASes announcing only one prefix: 314
LACNIC Region transit ASes present in the Internet Routing Table: 157
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 51751040
Equivalent to 3 /8s, 21 /16s and 168 /24s
Percentage of available LACNIC address space announced: 51.4
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: 3893
Total AfriNIC prefixes after maximum aggregation: 1197
AfriNIC Deaggregation factor: 3.25
Prefixes being announced from the AfriNIC address blocks: 4182
Unique aggregates announced from the AfriNIC address blocks: 1862
AfriNIC Region origin ASes present in the Internet Routing Table: 240
AfriNIC Prefixes per ASN: 17.43
AfriNIC Region origin ASes announcing only one prefix: 74
AfriNIC Region transit ASes present in the Internet Routing Table: 49
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 12279808
Equivalent to 0 /8s, 187 /16s and 96 /24s
Percentage of available AfriNIC address space announced: 36.6
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 1547 387 87 Videsh Sanchar Nigam Ltd. Aut
9498 1165 549 61 BHARTI BT INTERNET LTD.
9583 1101 110 410 Sify Limited
17488 1084 71 76 Hathway IP Over Cable Interne
4766 849 6006 343 Korea Telecom (KIX)
4134 825 12917 323 CHINANET-BACKBONE
23577 817 34 698 Korea Telecom (ATM-MPLS)
18101 690 150 53 Reliance Infocom Ltd Internet
9829 598 450 12 BSNL National Internet Backbo
1221 548 1919 421 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 1992 3087 178 bellsouth.net, inc.
4323 1462 1045 377 Time Warner Telecom
2386 1438 659 873 AT&T Data Communications Serv
7018 1377 5830 982 AT&T WorldNet Services
11492 1223 148 12 Cable One
7011 1076 298 603 Citizens Utilities
18566 1044 296 10 Covad Communications
1785 1022 510 105 AppliedTheory Corporation
6197 1006 597 507 BellSouth Network Solutions,
174 973 6837 806 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 409 1772 368 TDC Tele Danmark
8452 347 188 7 TEDATA
3301 339 1460 307 TeliaNet Sweden
3320 317 7044 266 Deutsche Telekom AG
8866 298 77 21 Bulgarian Telecommunication C
5462 291 666 26 Telewest Broadband
3215 285 2718 94 France Telecom Transpac
8551 283 269 38 Bezeq International
680 274 2047 264 DFN-IP service G-WiN
9155 267 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 1233 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 464 228 69 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
6471 414 85 46 ENTEL CHILE S.A.
11172 411 118 69 Servicios Alestra S.A de C.V
10620 392 100 63 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 288 853 223 The Internet Solution
20858 224 34 3 EgyNet
2018 189 173 83 Tertiary Education Network
5713 168 575 102 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 100 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 1992 3087 178 bellsouth.net, inc.
4755 1547 387 87 Videsh Sanchar Nigam Ltd. Aut
4323 1462 1045 377 Time Warner Telecom
2386 1438 659 873 AT&T Data Communications Serv
7018 1377 5830 982 AT&T WorldNet Services
8151 1233 2464 227 UniNet S.A. de C.V.
11492 1223 148 12 Cable One
9498 1165 549 61 BHARTI BT INTERNET LTD.
9583 1101 110 410 Sify Limited
17488 1084 71 76 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 1547 1460 Videsh Sanchar Nigam Ltd. Aut
11492 1223 1211 Cable One
9498 1165 1104 BHARTI BT INTERNET LTD.
4323 1462 1085 Time Warner Telecom
18566 1044 1034 Covad Communications
17488 1084 1008 Hathway IP Over Cable Interne
8151 1233 1006 UniNet S.A. de C.V.
1785 1022 917 AppliedTheory Corporation
22773 945 883 Cox Communications, Inc.
6478 948 797 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
/13:280 /14:513 /15:1019 /16:9933 /17:4373 /18:7283
/19:15509 /20:17927 /21:17339 /22:21799 /23:22883 /24:135257
/25:800 /26:948 /27:490 /28:81 /29:9 /30:1
/31:0 /32:9
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 1227 1992 bellsouth.net, inc.
11492 1205 1223 Cable One
2386 1136 1438 AT&T Data Communications Serv
18566 1025 1044 Covad Communications
7011 964 1076 Citizens Utilities
9583 955 1101 Sify Limited
6478 947 948 AT&T Worldnet Services
4755 936 1547 Videsh Sanchar Nigam Ltd. Aut
17488 897 1084 Hathway IP Over Cable Interne
9498 848 1165 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:108 12:2048 13:1 15:20 16:3
17:5 18:13 20:35 24:1079 25:1 32:61
33:3 38:431 40:93 41:640 43:1 44:2
47:12 52:3 55:3 56:3 57:23 58:514
59:456 60:443 61:988 62:1115 63:1946 64:3337
65:2430 66:3668 67:1205 68:685 69:2253 70:629
71:125 72:1764 73:5 74:980 75:217 76:322
77:664 78:617 79:170 80:905 81:859 82:593
83:391 84:573 85:1007 86:421 87:671 88:325
89:1214 90:12 91:1264 92:187 93:502 96:32
97:21 98:178 99:3 114:17 116:657 117:331
118:142 119:430 120:45 121:524 122:772 123:344
124:832 125:1142 128:325 129:202 130:131 131:403
132:66 133:9 134:177 135:33 136:220 137:91
138:151 139:69 140:484 141:99 142:399 143:308
144:358 145:51 146:357 147:153 148:504 149:184
150:130 151:196 152:172 153:135 154:10 155:273
156:174 157:271 158:167 159:222 160:257 161:115
162:233 163:186 164:526 165:448 166:315 167:322
168:610 169:131 170:429 171:29 172:10 189:174
190:2025 192:5789 193:4094 194:3210 195:2451 196:1082
198:3746 199:3257 200:5628 201:1432 202:7586 203:7856
204:3989 205:2069 206:2400 207:2760 208:3360 209:3433
210:2516 211:1023 212:1394 213:1644 214:470 215:49
216:4363 217:1188 218:347 219:412 220:1081 221:462
222:308
End of report
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