[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Nov 27 06:40:29 EST 2010
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 27 Nov, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 336618
Prefixes after maximum aggregation: 152156
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 165085
Total ASes present in the Internet Routing Table: 35344
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 30444
Origin ASes announcing only one prefix: 14895
Transit ASes present in the Internet Routing Table: 4900
Transit-only ASes present in the Internet Routing Table: 121
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: 494
Unregistered ASNs in the Routing Table: 223
Number of 32-bit ASNs allocated by the RIRs: 921
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 188
Number of addresses announced to Internet: 2311338848
Equivalent to 137 /8s, 196 /16s and 59 /24s
Percentage of available address space announced: 62.4
Percentage of allocated address space announced: 65.6
Percentage of available address space allocated: 95.0
Percentage of address space in use by end-sites: 86.2
Total number of prefixes smaller than registry allocations: 138184
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83261
Total APNIC prefixes after maximum aggregation: 28210
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 80180
Unique aggregates announced from the APNIC address blocks: 34447
APNIC Region origin ASes present in the Internet Routing Table: 4251
APNIC Prefixes per ASN: 18.86
APNIC Region origin ASes announcing only one prefix: 1194
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 571809824
Equivalent to 34 /8s, 21 /16s and 32 /24s
Percentage of available APNIC address space announced: 77.5
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, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 136335
Total ARIN prefixes after maximum aggregation: 69801
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 107499
Unique aggregates announced from the ARIN address blocks: 43805
ARIN Region origin ASes present in the Internet Routing Table: 14036
ARIN Prefixes per ASN: 7.66
ARIN Region origin ASes announcing only one prefix: 5381
ARIN Region transit ASes present in the Internet Routing Table: 1487
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 741285376
Equivalent to 44 /8s, 47 /16s and 30 /24s
Percentage of available ARIN address space announced: 64.0
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, 24/8, 26/8, 28/8, 29/8,
30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8,
44/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8,
56/8, 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, 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: 78369
Total RIPE prefixes after maximum aggregation: 45055
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 71927
Unique aggregates announced from the RIPE address blocks: 46615
RIPE Region origin ASes present in the Internet Routing Table: 15053
RIPE Prefixes per ASN: 4.78
RIPE Region origin ASes announcing only one prefix: 7742
RIPE Region transit ASes present in the Internet Routing Table: 2334
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 446006976
Equivalent to 26 /8s, 149 /16s and 134 /24s
Percentage of available RIPE address space announced: 78.2
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, 196608-197631
RIPE Address Blocks 2/8, 25/8, 31/8, 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,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 30746
Total LACNIC prefixes after maximum aggregation: 7098
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 29454
Unique aggregates announced from the LACNIC address blocks: 15267
LACNIC Region origin ASes present in the Internet Routing Table: 1400
LACNIC Prefixes per ASN: 21.04
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 245
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 78080512
Equivalent to 4 /8s, 167 /16s and 106 /24s
Percentage of available LACNIC address space announced: 58.2
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7665
Total AfriNIC prefixes after maximum aggregation: 1872
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 5958
Unique aggregates announced from the AfriNIC address blocks: 1751
AfriNIC Region origin ASes present in the Internet Routing Table: 419
AfriNIC Prefixes per ASN: 14.22
AfriNIC Region origin ASes announcing only one prefix: 136
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21409792
Equivalent to 1 /8s, 70 /16s and 176 /24s
Percentage of available AfriNIC address space announced: 42.5
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1873 9470 522 Korea Telecom (KIX)
7545 1453 299 80 TPG Internet Pty Ltd
4755 1385 639 158 TATA Communications formerly
17488 1368 157 121 Hathway IP Over Cable Interne
17974 1316 427 27 PT TELEKOMUNIKASI INDONESIA
9583 1035 75 487 Sify Limited
24560 1030 309 166 Bharti Airtel Ltd., Telemedia
4808 982 1714 265 CNCGROUP IP network: China169
18101 908 116 141 Reliance Infocom Ltd Internet
9829 836 696 31 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 3742 3890 273 bellsouth.net, inc.
4323 2653 1088 402 Time Warner Telecom
19262 1839 4868 283 Verizon Global Networks
1785 1803 697 132 PaeTec Communications, Inc.
20115 1512 1532 640 Charter Communications
6478 1413 285 80 AT&T Worldnet Services
7018 1395 5670 891 AT&T WorldNet Services
2386 1312 572 930 AT&T Data Communications Serv
11492 1260 233 62 Cable One
22773 1255 2864 72 Cox Communications, Inc.
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
3215 477 3238 97 France Telecom Transpac
3292 445 2010 387 TDC Tele Danmark
8866 438 134 24 Bulgarian Telecommunication C
9198 416 202 13 Kazakhtelecom Data Network Ad
8551 401 353 46 Bezeq International
34984 401 92 192 BILISIM TELEKOM
702 397 1865 311 UUNET - Commercial IP service
3301 383 1696 336 TeliaNet Sweden
12479 382 576 5 Uni2 Autonomous System
3320 381 7317 334 Deutsche Telekom AG
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
8151 1342 2625 365 UniNet S.A. de C.V.
10620 1335 249 158 TVCABLE BOGOTA
28573 1186 932 79 NET Servicos de Comunicao S.A
6503 1158 355 80 AVANTEL, S.A.
7303 827 441 105 Telecom Argentina Stet-France
14420 575 49 83 CORPORACION NACIONAL DE TELEC
22047 564 310 15 VTR PUNTO NET S.A.
3816 489 214 96 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 450 32 29 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
8452 1122 445 10 TEDATA
24863 742 147 39 LINKdotNET AS number
36992 653 278 161 Etisalat MISR
3741 264 923 226 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
24835 198 78 10 RAYA Telecom - Egypt
29571 197 19 11 Ci Telecom Autonomous system
2018 196 277 64 Tertiary Education Network
33776 195 12 14 Starcomms Nigeria Limited
16637 153 423 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 3742 3890 273 bellsouth.net, inc.
4323 2653 1088 402 Time Warner Telecom
4766 1873 9470 522 Korea Telecom (KIX)
19262 1839 4868 283 Verizon Global Networks
1785 1803 697 132 PaeTec Communications, Inc.
20115 1512 1532 640 Charter Communications
7545 1453 299 80 TPG Internet Pty Ltd
6478 1413 285 80 AT&T Worldnet Services
7018 1395 5670 891 AT&T WorldNet Services
4755 1385 639 158 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 2653 2251 Time Warner Telecom
1785 1803 1671 PaeTec Communications, Inc.
19262 1839 1556 Verizon Global Networks
7545 1453 1373 TPG Internet Pty Ltd
4766 1873 1351 Korea Telecom (KIX)
6478 1413 1333 AT&T Worldnet Services
17974 1316 1289 PT TELEKOMUNIKASI INDONESIA
17488 1368 1247 Hathway IP Over Cable Interne
4755 1385 1227 TATA Communications formerly
11492 1260 1198 Cable One
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
46164 UNALLOCATED 4.23.88.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.89.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.92.0/23 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.94.0/23 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.38.0.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.38.8.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.43.50.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.43.51.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.67.96.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.67.104.0/21 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.0.0.0/16 12654 RIPE NCC RIS Project
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.22.128.0/20 39122 Blacknight Internet Solutions
46.142.0.0/16 25295 Autonomous System of KielNET
46.162.64.0/18 29518 Labs2
46.182.120.0/22 16265 LeaseWeb AS Macro
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /8:20 /9:10 /10:25 /11:70 /12:208
/13:426 /14:749 /15:1332 /16:11325 /17:5490 /18:9197
/19:18485 /20:23713 /21:24084 /22:31717 /23:30443 /24:176498
/25:981 /26:1081 /27:585 /28:158 /29:12 /30:2
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2310 3742 bellsouth.net, inc.
4323 1432 2653 Time Warner Telecom
6478 1371 1413 AT&T Worldnet Services
10620 1227 1335 TVCABLE BOGOTA
11492 1217 1260 Cable One
1785 1078 1803 PaeTec Communications, Inc.
18566 1073 1092 Covad Communications
7011 1060 1161 Citizens Utilities
8452 985 1122 TEDATA
19262 958 1839 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:101 2:29 4:13 8:316 12:2023 13:6
14:69 15:17 16:3 17:8 20:9 24:1418
27:461 31:1 32:61 33:8 34:2 36:1
38:717 40:101 41:2655 42:1 44:3 46:289
47:10 49:30 50:13 52:12 55:5 56:2
57:29 58:852 59:499 60:499 61:1145 62:1013
63:1941 64:3716 65:2329 66:4086 67:1793 68:996
69:2809 70:719 71:382 72:1920 74:2281 75:285
76:319 77:869 78:678 79:437 80:1043 81:791
82:524 83:440 84:627 85:1019 86:484 87:700
88:381 89:1583 90:161 91:3235 92:541 93:1007
94:1127 95:667 96:403 97:241 98:688 99:33
101:3 107:2 108:69 109:769 110:425 111:661
112:305 113:324 114:473 115:635 116:1131 117:660
118:575 119:995 120:161 121:711 122:1586 123:963
124:1238 125:1270 128:227 129:151 130:169 131:556
132:235 133:20 134:207 135:46 136:210 137:146
138:287 139:109 140:475 141:195 142:348 143:512
144:484 145:54 146:430 147:170 148:640 149:319
150:151 151:231 152:294 153:175 154:3 155:365
156:166 157:342 158:122 159:367 160:311 161:199
162:276 163:165 164:434 165:331 166:465 167:429
168:709 169:152 170:720 171:67 172:2 173:1111
174:443 175:254 176:1 178:635 180:709 182:518
183:243 184:186 186:853 187:744 188:858 189:1022
190:4226 192:5772 193:4795 194:3469 195:2875 196:1211
197:1 198:3527 199:3656 200:5455 201:1576 202:8221
203:8323 204:4051 205:2353 206:2519 207:2983 208:3874
209:3459 210:2538 211:1297 212:1812 213:1715 214:682
215:62 216:4738 217:1607 218:565 219:398 220:1223
221:422 222:342 223:76
End of report
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