[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Feb 26 05:36:47 EST 2011
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
CaribNOG and the RIPE Routing Working Group.
Daily listings are sent to bgp-stats at lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 26 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 348212
Prefixes after maximum aggregation: 157161
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 171859
Total ASes present in the Internet Routing Table: 35939
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 30974
Origin ASes announcing only one prefix: 14951
Transit ASes present in the Internet Routing Table: 4965
Transit-only ASes present in the Internet Routing Table: 120
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 340
Unregistered ASNs in the Routing Table: 141
Number of 32-bit ASNs allocated by the RIRs: 1141
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 202
Number of addresses announced to Internet: 2366402016
Equivalent to 141 /8s, 12 /16s and 109 /24s
Percentage of available address space announced: 63.8
Percentage of allocated address space announced: 63.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 144236
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86615
Total APNIC prefixes after maximum aggregation: 29555
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 83423
Unique aggregates announced from the APNIC address blocks: 35959
APNIC Region origin ASes present in the Internet Routing Table: 4335
APNIC Prefixes per ASN: 19.24
APNIC Region origin ASes announcing only one prefix: 1203
APNIC Region transit ASes present in the Internet Routing Table: 691
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 592208160
Equivalent to 35 /8s, 76 /16s and 97 /24s
Percentage of available APNIC address space announced: 75.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 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, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 139724
Total ARIN prefixes after maximum aggregation: 71567
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110380
Unique aggregates announced from the ARIN address blocks: 45012
ARIN Region origin ASes present in the Internet Routing Table: 14211
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5395
ARIN Region transit ASes present in the Internet Routing Table: 1471
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 787499648
Equivalent to 46 /8s, 240 /16s and 74 /24s
Percentage of available ARIN address space announced: 62.6
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
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 82337
Total RIPE prefixes after maximum aggregation: 46749
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75631
Unique aggregates announced from the RIPE address blocks: 49313
RIPE Region origin ASes present in the Internet Routing Table: 15346
RIPE Prefixes per ASN: 4.93
RIPE Region origin ASes announcing only one prefix: 7786
RIPE Region transit ASes present in the Internet Routing Table: 2386
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 461025600
Equivalent to 27 /8s, 122 /16s and 177 /24s
Percentage of available RIPE address space announced: 74.3
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, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31872
Total LACNIC prefixes after maximum aggregation: 7374
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 30668
Unique aggregates announced from the LACNIC address blocks: 15906
LACNIC Region origin ASes present in the Internet Routing Table: 1435
LACNIC Prefixes per ASN: 21.37
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80968832
Equivalent to 4 /8s, 211 /16s and 124 /24s
Percentage of available LACNIC address space announced: 53.6
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7451
Total AfriNIC prefixes after maximum aggregation: 1805
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 5870
Unique aggregates announced from the AfriNIC address blocks: 1836
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.53
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21888000
Equivalent to 1 /8s, 77 /16s and 252 /24s
Percentage of available AfriNIC address space announced: 32.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2421 9501 886 Korea Telecom (KIX)
7545 1614 302 85 TPG Internet Pty Ltd
4755 1418 634 164 TATA Communications formerly
17974 1415 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1115 323 184 Bharti Airtel Ltd., Telemedia
4808 1046 2142 294 CNCGROUP IP network: China169
9583 1045 77 488 Sify Limited
17488 940 161 102 Hathway IP Over Cable Interne
18101 931 117 139 Reliance Infocom Ltd Internet
9829 895 761 45 BSNL National Internet Backbo
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3690 3855 261 bellsouth.net, inc.
4323 2604 1109 404 Time Warner Telecom
19262 1787 4954 285 Verizon Global Networks
1785 1786 697 131 PaeTec Communications, Inc.
20115 1528 1535 647 Charter Communications
6478 1522 296 84 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
7018 1357 6689 874 AT&T WorldNet Services
2386 1297 553 933 AT&T Data Communications Serv
11492 1286 236 70 Cable One
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6830 514 1780 319 UPC Distribution Services
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 465 98 145 BILISIM TELEKOM
3292 447 1996 388 TDC Tele Danmark
8866 442 133 23 Bulgarian Telecommunication C
20940 412 98 316 Akamai Technologies European
3320 410 7620 357 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 396 1800 310 UUNET - Commercial IP service
3301 383 1822 341 TeliaNet Sweden
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1383 257 166 TVCABLE BOGOTA
8151 1353 2686 362 UniNet S.A. de C.V.
28573 1234 961 82 NET Servicos de Comunicao S.A
6503 1169 354 73 AVANTEL, S.A.
7303 907 464 145 Telecom Argentina Stet-France
14420 641 57 94 CORPORACION NACIONAL DE TELEC
22047 543 310 15 VTR PUNTO NET S.A.
3816 508 221 101 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
11172 462 83 82 Servicios Alestra S.A de C.V
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 770 445 11 TEDATA
24863 692 147 39 LINKdotNET AS number
15475 473 90 12 Nile Online
36992 299 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 156 439 87 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3690 3855 261 bellsouth.net, inc.
4323 2604 1109 404 Time Warner Telecom
4766 2421 9501 886 Korea Telecom (KIX)
19262 1787 4954 285 Verizon Global Networks
1785 1786 697 131 PaeTec Communications, Inc.
7545 1614 302 85 TPG Internet Pty Ltd
20115 1528 1535 647 Charter Communications
6478 1522 296 84 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
4755 1418 634 164 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2604 2200 Time Warner Telecom
1785 1786 1655 PaeTec Communications, Inc.
4766 2421 1535 Korea Telecom (KIX)
7545 1614 1529 TPG Internet Pty Ltd
19262 1787 1502 Verizon Global Networks
6478 1522 1438 AT&T Worldnet Services
17974 1415 1386 PT TELEKOMUNIKASI INDONESIA
18566 1447 1291 Covad Communications
4755 1418 1254 TATA Communications formerly
10620 1383 1217 TVCABLE BOGOTA
Complete listing at http://thyme.rand.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 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
31.43.64.0/19 30886 ISP LvivLan autonomous system
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
Complete listing at http://thyme.rand.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 /9:10 /10:26 /11:72 /12:215
/13:444 /14:765 /15:1372 /16:11536 /17:5667 /18:9352
/19:18904 /20:24452 /21:24996 /22:33336 /23:31719 /24:181897
/25:1150 /26:1378 /27:706 /28:169 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2277 3690 bellsouth.net, inc.
6478 1476 1522 AT&T Worldnet Services
18566 1425 1447 Covad Communications
4323 1403 2604 Time Warner Telecom
10620 1274 1383 TVCABLE BOGOTA
11492 1243 1286 Cable One
7011 1056 1158 Citizens Utilities
1785 1054 1786 PaeTec Communications, Inc.
6503 952 1169 AVANTEL, S.A.
19262 899 1787 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:251 2:40 4:13 5:1 8:333 12:2029
13:1 14:412 15:15 16:3 17:8 20:9
23:1 24:1493 27:596 32:60 33:4 34:2
37:1 38:706 40:101 41:2307 44:3 46:641
47:4 49:153 50:95 52:12 55:2 56:2
57:31 58:865 59:475 60:383 61:1108 62:1042
63:1940 64:3848 65:2360 66:4254 67:1778 68:1030
69:2892 70:730 71:399 72:2012 73:1 74:2350
75:292 76:346 77:854 78:697 79:445 80:1064
81:812 82:522 83:464 84:636 85:1046 86:576
87:738 88:355 89:1578 90:157 91:3542 92:494
93:1047 94:1207 95:771 96:455 97:251 98:790
99:33 101:35 107:3 108:88 109:930 110:484
111:718 112:315 113:369 114:499 115:651 116:946
117:685 118:685 119:1020 120:244 121:696 122:1624
123:1056 124:1291 125:1258 128:266 129:156 130:173
131:568 132:108 133:20 134:220 135:49 136:215
137:146 138:294 139:117 140:490 141:203 142:355
143:386 144:484 145:51 146:441 147:199 148:636
149:273 150:169 151:229 152:298 153:179 154:3
155:377 156:176 157:344 158:128 159:381 160:315
161:208 162:276 163:156 164:486 165:339 166:502
167:411 168:737 169:150 170:755 171:69 172:2
173:1224 174:505 175:320 176:1 177:23 178:771
180:816 181:2 182:363 183:247 184:213 186:1020
187:828 188:896 189:1055 190:4423 192:5806 193:4798
194:3503 195:2964 196:1194 197:3 198:3586 199:3833
200:5603 201:1577 202:8292 203:8444 204:4085 205:2300
206:2644 207:3073 208:3922 209:3485 210:2646 211:1347
212:1932 213:1739 214:768 215:63 216:4856 217:1639
218:547 219:365 220:1201 221:452 222:314 223:104
End of report
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