[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Feb 23 05:06:54 EST 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 23 Feb, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 246872
Prefixes after maximum aggregation: 124953
Deaggregation factor: 1.98
Unique aggregates announced to Internet: 119515
Total ASes present in the Internet Routing Table: 27438
Prefixes per ASN: 9.00
Origin-only ASes present in the Internet Routing Table: 23927
Origin ASes announcing only one prefix: 11617
Transit ASes present in the Internet Routing Table: 3511
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 19
Max AS path prepend of ASN (29642) 15
Prefixes from unregistered ASNs in the Routing Table: 59
Unregistered ASNs in the Routing Table: 15
Number of 32-bit ASNs allocated by the RIRs: 46
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: 927
Number of addresses announced to Internet: 1835598080
Equivalent to 109 /8s, 105 /16s and 1 /24s
Percentage of available address space announced: 49.5
Percentage of allocated address space announced: 60.8
Percentage of available address space allocated: 81.4
Percentage of address space in use by end-sites: 70.3
Total number of prefixes smaller than registry allocations: 116852
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 56515
Total APNIC prefixes after maximum aggregation: 20789
APNIC Deaggregation factor: 2.72
Prefixes being announced from the APNIC address blocks: 54018
Unique aggregates announced from the APNIC address blocks: 22875
APNIC Region origin ASes present in the Internet Routing Table: 3133
APNIC Prefixes per ASN: 17.24
APNIC Region origin ASes announcing only one prefix: 826
APNIC Region transit ASes present in the Internet Routing Table: 481
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 330881472
Equivalent to 19 /8s, 184 /16s and 217 /24s
Percentage of available APNIC address space announced: 75.9
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, 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: 115756
Total ARIN prefixes after maximum aggregation: 65427
ARIN Deaggregation factor: 1.77
Prefixes being announced from the ARIN address blocks: 84476
Unique aggregates announced from the ARIN address blocks: 33341
ARIN Region origin ASes present in the Internet Routing Table: 12151
ARIN Prefixes per ASN: 6.95
ARIN Region origin ASes announcing only one prefix: 4686
ARIN Region transit ASes present in the Internet Routing Table: 1149
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 356278656
Equivalent to 21 /8s, 60 /16s and 97 /24s
Percentage of available ARIN address space announced: 73.2
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: 52449
Total RIPE prefixes after maximum aggregation: 32857
RIPE Deaggregation factor: 1.60
Prefixes being announced from the RIPE address blocks: 47511
Unique aggregates announced from the RIPE address blocks: 31891
RIPE Region origin ASes present in the Internet Routing Table: 10944
RIPE Prefixes per ASN: 4.34
RIPE Region origin ASes announcing only one prefix: 5730
RIPE Region transit ASes present in the Internet Routing Table: 1652
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 346376192
Equivalent to 20 /8s, 165 /16s and 72 /24s
Percentage of available RIPE address space announced: 79.4
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: 18675
Total LACNIC prefixes after maximum aggregation: 4729
LACNIC Deaggregation factor: 3.95
Prefixes being announced from the LACNIC address blocks: 17075
Unique aggregates announced from the LACNIC address blocks: 9357
LACNIC Region origin ASes present in the Internet Routing Table: 908
LACNIC Prefixes per ASN: 18.81
LACNIC Region origin ASes announcing only one prefix: 302
LACNIC Region transit ASes present in the Internet Routing Table: 153
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 48446720
Equivalent to 2 /8s, 227 /16s and 61 /24s
Percentage of available LACNIC address space announced: 48.1
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: 3417
Total AfriNIC prefixes after maximum aggregation: 1133
AfriNIC Deaggregation factor: 3.02
Prefixes being announced from the AfriNIC address blocks: 3860
Unique aggregates announced from the AfriNIC address blocks: 1806
AfriNIC Region origin ASes present in the Internet Routing Table: 229
AfriNIC Prefixes per ASN: 16.86
AfriNIC Region origin ASes announcing only one prefix: 73
AfriNIC Region transit ASes present in the Internet Routing Table: 45
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 10006016
Equivalent to 0 /8s, 152 /16s and 174 /24s
Percentage of available AfriNIC address space announced: 29.8
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 1580 386 81 Videsh Sanchar Nigam Ltd. Aut
9583 1148 109 21 Sify Limited
9498 1130 550 63 BHARTI BT INTERNET LTD.
17488 992 64 89 Hathway IP Over Cable Interne
4766 854 5495 345 Korea Telecom (KIX)
4134 853 12089 313 CHINANET-BACKBONE
23577 811 34 696 Korea Telecom (ATM-MPLS)
18101 712 128 65 Reliance Infocom Ltd Internet
9829 584 449 11 BSNL National Internet Backbo
4812 553 940 85 China Telecom (Shanghai)
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 5988 992 AT&T WorldNet Services
4323 1375 1011 363 Time Warner Telecom
2386 1362 634 839 AT&T Data Communications Serv
11492 1206 138 30 Cable One
7011 1060 308 613 Citizens Utilities
18566 1042 296 10 Covad Communications
6197 1034 754 511 BellSouth Network Solutions,
174 984 6835 815 Cogent Communications
6478 927 237 112 AT&T Worldnet Services
20115 887 808 484 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
8452 398 188 7 TEDATA
3292 396 1778 361 TDC Tele Danmark
3301 335 1443 305 TeliaNet Sweden
3320 325 7045 269 Deutsche Telekom AG
8866 289 78 24 Bulgarian Telecommunication C
8551 279 267 42 Bezeq International
680 275 2046 256 DFN-IP service G-WiN
3215 273 2607 94 France Telecom Transpac
8708 271 420 241 Romania Data Systems S.A.
6746 269 128 247 Dynamic Network Technologies,
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 1170 2438 218 UniNet S.A. de C.V.
11830 555 299 9 Instituto Costarricense de El
7303 444 216 58 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
11172 400 115 66 Servicios Alestra S.A de C.V
6471 396 85 40 ENTEL CHILE S.A.
10620 366 96 49 TVCABLE BOGOTA
14117 352 25 15 Telefonica del Sur S.A.
22047 323 270 14 VTR PUNTO NET S.A.
10481 301 120 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 411 60 31 LINKdotNET AS number
3741 282 869 224 The Internet Solution
20858 210 34 3 EgyNet
2018 158 276 117 Tertiary Education Network
6713 143 135 11 Itissalat Al-MAGHRIB
33783 129 9 15 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
33776 99 6 7 Starcomms Nigeria Limited
24835 90 48 7 RAYA Telecom - Egypt
29571 80 13 7 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
4755 1580 386 81 Videsh Sanchar Nigam Ltd. Aut
7018 1427 5988 992 AT&T WorldNet Services
4323 1375 1011 363 Time Warner Telecom
2386 1362 634 839 AT&T Data Communications Serv
11492 1206 138 30 Cable One
8151 1170 2438 218 UniNet S.A. de C.V.
9583 1148 109 21 Sify Limited
9498 1130 550 63 BHARTI BT INTERNET LTD.
7011 1060 308 613 Citizens Utilities
18566 1042 296 10 Covad Communications
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
11492 1206 1176 Cable One
9583 1148 1127 Sify Limited
9498 1130 1067 BHARTI BT INTERNET LTD.
18566 1042 1032 Covad Communications
4323 1375 1012 Time Warner Telecom
8151 1170 952 UniNet S.A. de C.V.
17488 992 903 Hathway IP Over Cable Interne
6478 927 815 AT&T Worldnet Services
22773 874 809 Cox Communications, Inc.
19262 884 733 Verizon Global Networks
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15190 UNALLOCATED 63.98.176.0/24 701 UUNET Technologies,
18506 UNALLOCATED 63.107.123.0/24 33286 Turlock Irrigation D
16886 UNALLOCATED 63.109.3.0/24 1239 Sprint
16886 UNALLOCATED 63.167.139.0/24 1239 Sprint
33526 UNALLOCATED 64.128.26.0/24 4323 Time Warner Telecom
21624 UNALLOCATED 65.163.176.0/24 701 UUNET Technologies,
65000 PRIVATE 92.62.240.0/20 24750 Cable Internet Syste
64601 PRIVATE 118.232.77.0/24 9924 Taiwan Fixed Network
64601 PRIVATE 118.232.78.0/24 9924 Taiwan Fixed Network
64601 PRIVATE 118.232.224.0/21 9924 Taiwan Fixed Network
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.48.10.0/23 19548 Adelphia Business Solutions
24.48.12.0/22 19548 Adelphia Business Solutions
24.48.80.0/21 19548 Adelphia Business Solutions
24.54.224.0/19 20001 HoldCo 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
62.72.160.0/19 24896 IntellCOM Provider LIR, Kiev,
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 /11:39 /12:134
/13:276 /14:494 /15:985 /16:9773 /17:4253 /18:7119
/19:15160 /20:17298 /21:16433 /22:20813 /23:21929 /24:129455
/25:877 /26:1109 /27:568 /28:95 /29:9 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1194 1206 Cable One
2386 1068 1362 AT&T Data Communications Serv
18566 1023 1042 Covad Communications
9583 984 1148 Sify Limited
7011 943 1060 Citizens Utilities
4755 932 1580 Videsh Sanchar Nigam Ltd. Aut
6478 926 927 AT&T Worldnet Services
17488 807 992 Hathway IP Over Cable Interne
9498 803 1130 BHARTI BT INTERNET LTD.
23577 802 811 Korea Telecom (ATM-MPLS)
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:101 12:1983 13:1 15:21 16:3
17:6 18:13 20:35 24:1027 25:1 32:61
33:4 38:390 40:65 41:597 44:2 47:8
52:3 55:3 56:3 57:22 58:522 59:422
60:407 61:988 62:1079 63:1950 64:3357 65:2363
66:3635 67:1131 68:629 69:2104 70:483 71:123
72:1452 73:6 74:842 75:236 76:258 77:556
78:499 79:80 80:892 81:824 82:586 83:355
84:522 85:1006 86:393 87:650 88:295 89:1166
90:12 91:1033 92:134 93:79 95:2 96:13
97:10 98:74 99:3 114:1 115:1 116:534
117:262 118:78 119:154 121:439 122:706 123:289
124:804 125:1097 128:310 129:198 130:132 131:399
132:69 133:9 134:188 135:37 136:220 137:117
138:156 139:63 140:489 141:108 142:377 143:265
144:340 145:53 146:335 147:131 148:486 149:178
150:124 151:148 152:95 153:131 154:11 155:290
156:201 157:250 158:162 159:217 160:230 161:100
162:203 163:197 164:567 165:425 166:292 167:307
168:583 169:133 170:432 171:28 172:3 189:155
190:1399 192:5765 193:4100 194:3254 195:2332 196:997
198:3770 199:3191 200:5458 201:1277 202:7584 203:7794
204:3971 205:2059 206:2413 207:2728 208:3146 209:3557
210:2529 211:1032 212:1284 213:1585 214:445 215:47
216:4155 217:1200 218:337 219:399 220:1099 221:402
222:308
End of report
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