[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Feb 19 05:27:27 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 19 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 347279
Prefixes after maximum aggregation: 156690
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 171504
Total ASes present in the Internet Routing Table: 35911
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 30942
Origin ASes announcing only one prefix: 14976
Transit ASes present in the Internet Routing Table: 4969
Transit-only ASes present in the Internet Routing Table: 122
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: 333
Unregistered ASNs in the Routing Table: 135
Number of 32-bit ASNs allocated by the RIRs: 1131
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 206
Number of addresses announced to Internet: 2396213440
Equivalent to 142 /8s, 211 /16s and 80 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 64.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 143943
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85964
Total APNIC prefixes after maximum aggregation: 29310
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 82763
Unique aggregates announced from the APNIC address blocks: 35864
APNIC Region origin ASes present in the Internet Routing Table: 4330
APNIC Prefixes per ASN: 19.11
APNIC Region origin ASes announcing only one prefix: 1205
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: 589615904
Equivalent to 35 /8s, 36 /16s and 211 /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
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: 139812
Total ARIN prefixes after maximum aggregation: 71478
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110606
Unique aggregates announced from the ARIN address blocks: 44958
ARIN Region origin ASes present in the Internet Routing Table: 14208
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5412
ARIN Region transit ASes present in the Internet Routing Table: 1470
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 787367552
Equivalent to 46 /8s, 238 /16s and 70 /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: 82060
Total RIPE prefixes after maximum aggregation: 46598
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75405
Unique aggregates announced from the RIPE address blocks: 49074
RIPE Region origin ASes present in the Internet Routing Table: 15325
RIPE Prefixes per ASN: 4.92
RIPE Region origin ASes announcing only one prefix: 7790
RIPE Region transit ASes present in the Internet Routing Table: 2392
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 460222144
Equivalent to 27 /8s, 110 /16s and 110 /24s
Percentage of available RIPE address space announced: 74.1
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: 31784
Total LACNIC prefixes after maximum aggregation: 7387
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 30548
Unique aggregates announced from the LACNIC address blocks: 15959
LACNIC Region origin ASes present in the Internet Routing Table: 1429
LACNIC Prefixes per ASN: 21.38
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 261
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80804992
Equivalent to 4 /8s, 208 /16s and 252 /24s
Percentage of available LACNIC address space announced: 53.5
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: 7445
Total AfriNIC prefixes after maximum aggregation: 1807
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 5842
Unique aggregates announced from the AfriNIC address blocks: 1841
AfriNIC Region origin ASes present in the Internet Routing Table: 437
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21857280
Equivalent to 1 /8s, 77 /16s and 132 /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 2307 9497 819 Korea Telecom (KIX)
7545 1628 302 87 TPG Internet Pty Ltd
4755 1417 634 163 TATA Communications formerly
17974 1409 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1113 323 182 Bharti Airtel Ltd., Telemedia
9583 1044 77 488 Sify Limited
4808 1042 2142 294 CNCGROUP IP network: China169
17488 950 162 103 Hathway IP Over Cable Interne
18101 929 117 141 Reliance Infocom Ltd Internet
9829 898 763 42 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 3694 3855 261 bellsouth.net, inc.
4323 2623 1109 405 Time Warner Telecom
19262 1843 4955 283 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
20115 1527 1534 646 Charter Communications
6478 1510 295 78 AT&T Worldnet Services
18566 1433 320 158 Covad Communications
7018 1358 6674 878 AT&T WorldNet Services
2386 1297 553 934 AT&T Data Communications Serv
11492 1280 236 73 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 513 1764 318 UPC Distribution Services
9198 468 267 15 Kazakhtelecom Data Network Ad
34984 463 98 143 BILISIM TELEKOM
3292 447 1996 388 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
20940 412 99 318 Akamai Technologies European
3320 410 7620 357 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 396 1800 309 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 1374 255 166 TVCABLE BOGOTA
8151 1342 2664 359 UniNet S.A. de C.V.
28573 1232 961 82 NET Servicos de Comunicao S.A
6503 1187 354 73 AVANTEL, S.A.
7303 898 463 142 Telecom Argentina Stet-France
14420 638 57 92 CORPORACION NACIONAL DE TELEC
22047 545 310 15 VTR PUNTO NET S.A.
3816 508 221 97 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 461 34 33 Telefonica del Sur S.A.
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
24863 763 147 39 LINKdotNET AS number
8452 730 445 11 TEDATA
15475 496 90 12 Nile Online
36992 301 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 219 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 149 422 85 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 3694 3855 261 bellsouth.net, inc.
4323 2623 1109 405 Time Warner Telecom
4766 2307 9497 819 Korea Telecom (KIX)
19262 1843 4955 283 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
7545 1628 302 87 TPG Internet Pty Ltd
20115 1527 1534 646 Charter Communications
6478 1510 295 78 AT&T Worldnet Services
18566 1433 320 158 Covad Communications
4755 1417 634 163 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 2623 2218 Time Warner Telecom
1785 1784 1653 PaeTec Communications, Inc.
19262 1843 1560 Verizon Global Networks
7545 1628 1541 TPG Internet Pty Ltd
4766 2307 1488 Korea Telecom (KIX)
6478 1510 1432 AT&T Worldnet Services
17974 1409 1380 PT TELEKOMUNIKASI INDONESIA
18566 1433 1275 Covad Communications
4755 1417 1254 TATA Communications formerly
10620 1374 1208 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
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
39.0.0.0/8 237 Merit Network
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 /8:21 /9:10 /10:26 /11:72 /12:215
/13:445 /14:764 /15:1368 /16:11511 /17:5649 /18:9326
/19:18851 /20:24423 /21:24899 /22:33017 /23:31756 /24:181723
/25:1076 /26:1274 /27:657 /28:169 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2281 3694 bellsouth.net, inc.
6478 1464 1510 AT&T Worldnet Services
4323 1413 2623 Time Warner Telecom
18566 1411 1433 Covad Communications
10620 1265 1374 TVCABLE BOGOTA
11492 1237 1280 Cable One
1785 1054 1784 PaeTec Communications, Inc.
7011 1054 1157 Citizens Utilities
6503 969 1187 AVANTEL, S.A.
19262 954 1843 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:196 2:42 4:13 5:1 8:334 12:2029
13:1 14:409 15:15 16:3 17:8 20:9
23:1 24:1489 27:587 32:60 33:4 34:2
37:1 38:706 40:101 41:2241 44:3 46:617
47:4 49:149 50:93 52:12 55:2 56:2
57:32 58:862 59:475 60:391 61:1107 62:1053
63:1940 64:3828 65:2349 66:4224 67:1781 68:1028
69:2949 70:736 71:403 72:2020 73:1 74:2344
75:292 76:346 77:871 78:710 79:446 80:1053
81:823 82:503 83:475 84:634 85:1043 86:559
87:750 88:355 89:1573 90:157 91:3516 92:493
93:1039 94:1208 95:768 96:453 97:251 98:824
99:33 101:31 107:3 108:88 109:929 110:480
111:706 112:314 113:369 114:500 115:656 116:928
117:687 118:675 119:1021 120:242 121:701 122:1627
123:1052 124:1286 125:1257 128:266 129:156 130:170
131:569 132:109 133:20 134:216 135:49 136:215
137:146 138:292 139:119 140:494 141:203 142:359
143:376 144:486 145:51 146:437 147:199 148:638
149:276 150:160 151:229 152:298 153:180 154:3
155:349 156:176 157:342 158:129 159:380 160:313
161:206 162:274 163:161 164:486 165:338 166:502
167:422 168:737 169:150 170:754 171:69 172:11
173:1318 174:530 175:317 176:1 177:9 178:783
180:810 182:361 183:247 184:210 186:1010 187:826
188:895 189:1067 190:4404 192:5802 193:4803 194:3509
195:2955 196:1191 197:3 198:3573 199:3834 200:5595
201:1581 202:8260 203:8442 204:4101 205:2341 206:2624
207:3086 208:3903 209:3496 210:2632 211:1340 212:1930
213:1737 214:739 215:62 216:4892 217:1621 218:540
219:379 220:1201 221:452 222:312 223:100
End of report
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