[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Mar 28 18:06:47 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 29 Mar, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 250362
Prefixes after maximum aggregation: 125916
Deaggregation factor: 1.99
Unique aggregates announced to Internet: 121576
Total ASes present in the Internet Routing Table: 27752
Prefixes per ASN: 9.02
Origin-only ASes present in the Internet Routing Table: 24169
Origin ASes announcing only one prefix: 11220
Transit ASes present in the Internet Routing Table: 3583
Transit-only ASes present in the Internet Routing Table: 76
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: 25295
Unregistered ASNs in the Routing Table: 1915
Number of 32-bit ASNs allocated by the RIRs: 47
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: 855
Number of addresses announced to Internet: 1851948960
Equivalent to 110 /8s, 98 /16s and 127 /24s
Percentage of available address space announced: 50.0
Percentage of allocated address space announced: 61.4
Percentage of available address space allocated: 81.4
Percentage of address space in use by end-sites: 71.0
Total number of prefixes smaller than registry allocations: 119223
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 42339
Total APNIC prefixes after maximum aggregation: 13317
APNIC Deaggregation factor: 3.18
Prefixes being announced from the APNIC address blocks: 54523
Unique aggregates announced from the APNIC address blocks: 23244
APNIC Region origin ASes present in the Internet Routing Table: 1909
APNIC Prefixes per ASN: 28.56
APNIC Region origin ASes announcing only one prefix: 554
APNIC Region transit ASes present in the Internet Routing Table: 352
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 337576544
Equivalent to 20 /8s, 31 /16s and 2 /24s
Percentage of available APNIC address space announced: 77.4
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: 106733
Total ARIN prefixes after maximum aggregation: 58780
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 85545
Unique aggregates announced from the ARIN address blocks: 33880
ARIN Region origin ASes present in the Internet Routing Table: 11657
ARIN Prefixes per ASN: 7.34
ARIN Region origin ASes announcing only one prefix: 4528
ARIN Region transit ASes present in the Internet Routing Table: 1042
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 360984448
Equivalent to 21 /8s, 132 /16s and 47 /24s
Percentage of available ARIN address space announced: 74.2
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: 53206
Total RIPE prefixes after maximum aggregation: 33043
RIPE Deaggregation factor: 1.61
Prefixes being announced from the RIPE address blocks: 48775
Unique aggregates announced from the RIPE address blocks: 32684
RIPE Region origin ASes present in the Internet Routing Table: 11085
RIPE Prefixes per ASN: 4.40
RIPE Region origin ASes announcing only one prefix: 5781
RIPE Region transit ASes present in the Internet Routing Table: 1703
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 350432384
Equivalent to 20 /8s, 227 /16s and 44 /24s
Percentage of available RIPE address space announced: 80.3
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: 19204
Total LACNIC prefixes after maximum aggregation: 4812
LACNIC Deaggregation factor: 3.99
Prefixes being announced from the LACNIC address blocks: 17548
Unique aggregates announced from the LACNIC address blocks: 9612
LACNIC Region origin ASes present in the Internet Routing Table: 883
LACNIC Prefixes per ASN: 19.87
LACNIC Region origin ASes announcing only one prefix: 277
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: 16
Number of LACNIC addresses announced to Internet: 49885696
Equivalent to 2 /8s, 249 /16s and 50 /24s
Percentage of available LACNIC address space announced: 49.6
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: 3584
Total AfriNIC prefixes after maximum aggregation: 1124
AfriNIC Deaggregation factor: 3.19
Prefixes being announced from the AfriNIC address blocks: 3987
Unique aggregates announced from the AfriNIC address blocks: 1808
AfriNIC Region origin ASes present in the Internet Routing Table: 234
AfriNIC Prefixes per ASN: 17.04
AfriNIC Region origin ASes announcing only one prefix: 80
AfriNIC Region transit ASes present in the Internet Routing Table: 45
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 10167552
Equivalent to 0 /8s, 155 /16s and 37 /24s
Percentage of available AfriNIC address space announced: 30.3
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 1619 387 87 Videsh Sanchar Nigam Ltd. Aut
9583 1152 140 16 Sify Limited
9498 1129 550 63 BHARTI BT INTERNET LTD.
17488 1045 67 83 Hathway IP Over Cable Interne
4134 859 12487 319 CHINANET-BACKBONE
4766 850 6005 341 Korea Telecom (KIX)
18101 673 126 52 Reliance Infocom Ltd Internet
9829 586 450 12 BSNL National Internet Backbo
4812 562 969 92 China Telecom (Shanghai)
1221 542 1950 418 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 1427 5927 1009 AT&T WorldNet Services
2386 1399 658 851 AT&T Data Communications Serv
4323 1396 1028 368 Time Warner Telecom
11492 1219 147 23 Cable One
7011 1082 315 615 Citizens Utilities
18566 1046 296 10 Covad Communications
1785 1007 479 107 AppliedTheory Corporation
6197 989 728 477 BellSouth Network Solutions,
174 966 6834 812 Cogent Communications
20115 915 859 508 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 398 1777 362 TDC Tele Danmark
8452 358 188 7 TEDATA
3301 341 1459 310 TeliaNet Sweden
3320 322 7045 267 Deutsche Telekom AG
8866 293 78 24 Bulgarian Telecommunication C
5462 292 666 26 Telewest Broadband
3215 278 2671 91 France Telecom Transpac
6746 264 127 242 Dynamic Network Technologies,
680 259 2046 258 DFN-IP service G-WiN
9155 254 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 1187 2448 222 UniNet S.A. de C.V.
11830 555 299 9 Instituto Costarricense de El
7303 452 220 60 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
11172 410 117 69 Servicios Alestra S.A de C.V
6471 396 85 39 ENTEL CHILE S.A.
10620 396 104 50 TVCABLE BOGOTA
14117 352 25 15 Telefonica del Sur S.A.
22047 322 270 14 VTR PUNTO NET 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 452 60 27 LINKdotNET AS number
3741 287 869 223 The Internet Solution
2018 258 276 112 Tertiary Education Network
20858 183 34 3 EgyNet
6713 143 135 11 Itissalat Al-MAGHRIB
33783 130 9 16 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
33776 99 6 7 Starcomms Nigeria Limited
24835 89 48 7 RAYA Telecom - Egypt
2905 83 176 74 The Internetworking Company o
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 1914 3009 94 bellsouth.net, inc.
23577 1634 34 699 Korea Telecom (ATM-MPLS)
4755 1619 387 87 Videsh Sanchar Nigam Ltd. Aut
7018 1427 5927 1009 AT&T WorldNet Services
2386 1399 658 851 AT&T Data Communications Serv
4323 1396 1028 368 Time Warner Telecom
11492 1219 147 23 Cable One
8151 1187 2448 222 UniNet S.A. de C.V.
9583 1152 140 16 Sify Limited
9498 1129 550 63 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1619 1532 Videsh Sanchar Nigam Ltd. Aut
11492 1219 1196 Cable One
9583 1152 1136 Sify Limited
9498 1129 1066 BHARTI BT INTERNET LTD.
18566 1046 1036 Covad Communications
4323 1396 1028 Time Warner Telecom
8151 1187 965 UniNet S.A. de C.V.
17488 1045 962 Hathway IP Over Cable Interne
17676 1018 952 Softbank BB Corp.
23577 1634 935 Korea Telecom (ATM-MPLS)
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
26478 UNALLOCATED 8.7.228.0/24 6461 AboveNet Communicati
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
14984 UNALLOCATED 12.2.192.0/24 7132 SBC Internet Service
15132 UNALLOCATED 12.9.150.0/24 701 UUNET Technologies,
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 /11:41 /12:137
/13:277 /14:499 /15:997 /16:9813 /17:4312 /18:7285
/19:15269 /20:17525 /21:16771 /22:21294 /23:22327 /24:131495
/25:775 /26:894 /27:483 /28:106 /29:9 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1205 1219 Cable One
2386 1099 1399 AT&T Data Communications Serv
18566 1027 1046 Covad Communications
9583 987 1152 Sify Limited
7011 964 1082 Citizens Utilities
4755 962 1619 Videsh Sanchar Nigam Ltd. Aut
6478 893 894 AT&T Worldnet Services
17488 860 1045 Hathway IP Over Cable Interne
23577 808 1634 Korea Telecom (ATM-MPLS)
9498 804 1129 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 8:102 12:1998 13:1 15:20 16:3
17:6 18:13 20:35 24:1046 25:1 32:60
33:4 38:407 40:95 41:634 44:2 47:8
52:3 55:3 56:3 57:22 58:513 59:423
60:423 61:987 62:1087 63:1957 64:3360 65:2370
66:3607 67:1092 68:654 69:2110 70:541 71:127
72:1540 73:6 74:899 75:221 76:284 77:617
78:543 79:111 80:892 81:831 82:607 83:370
84:522 85:943 86:388 87:628 88:322 89:1207
90:11 91:1126 92:238 93:166 96:19 97:16
98:108 99:3 116:582 117:280 118:102 119:380
121:465 122:719 123:303 124:834 125:1125 128:325
129:198 130:124 131:405 132:69 133:9 134:188
135:32 136:222 137:119 138:155 139:65 140:483
141:110 142:380 143:279 144:347 145:54 146:338
147:133 148:496 149:180 150:121 151:159 152:142
153:127 154:11 155:266 156:207 157:254 158:167
159:223 160:245 161:110 162:206 163:219 164:572
165:433 166:296 167:314 168:594 169:130 170:426
171:28 172:3 189:165 190:1582 192:5769 193:4089
194:3259 195:2379 196:1075 198:3761 199:3235 200:5519
201:1322 202:7543 203:7774 204:3986 205:2111 206:2413
207:2721 208:3223 209:3472 210:2525 211:1033 212:1326
213:1610 214:453 215:48 216:4278 217:1197 218:349
219:404 220:1062 221:402 222:312
End of report
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