[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Dic 3 18:06:40 BRST 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 en lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfs en cisco.com>.
Routing Table Report 04:00 +10GMT Sat 04 Dec, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 337120
Prefixes after maximum aggregation: 152448
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 166104
Total ASes present in the Internet Routing Table: 35395
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 30484
Origin ASes announcing only one prefix: 14904
Transit ASes present in the Internet Routing Table: 4911
Transit-only ASes present in the Internet Routing Table: 119
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: 599
Unregistered ASNs in the Routing Table: 272
Number of 32-bit ASNs allocated by the RIRs: 931
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: 189
Number of addresses announced to Internet: 2314105824
Equivalent to 137 /8s, 238 /16s and 115 /24s
Percentage of available address space announced: 62.4
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.4
Total number of prefixes smaller than registry allocations: 138390
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83266
Total APNIC prefixes after maximum aggregation: 28276
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 80189
Unique aggregates announced from the APNIC address blocks: 35123
APNIC Region origin ASes present in the Internet Routing Table: 4255
APNIC Prefixes per ASN: 18.85
APNIC Region origin ASes announcing only one prefix: 1199
APNIC Region transit ASes present in the Internet Routing Table: 686
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 571205152
Equivalent to 34 /8s, 11 /16s and 230 /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
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: 136457
Total ARIN prefixes after maximum aggregation: 69829
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 107499
Unique aggregates announced from the ARIN address blocks: 43811
ARIN Region origin ASes present in the Internet Routing Table: 14051
ARIN Prefixes per ASN: 7.65
ARIN Region origin ASes announcing only one prefix: 5385
ARIN Region transit ASes present in the Internet Routing Table: 1496
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 741381376
Equivalent to 44 /8s, 48 /16s and 149 /24s
Percentage of available ARIN address space announced: 62.2
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, 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, 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, 100/8,
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: 78636
Total RIPE prefixes after maximum aggregation: 45198
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 72182
Unique aggregates announced from the RIPE address blocks: 46814
RIPE Region origin ASes present in the Internet Routing Table: 15076
RIPE Prefixes per ASN: 4.79
RIPE Region origin ASes announcing only one prefix: 7740
RIPE Region transit ASes present in the Internet Routing Table: 2341
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 448559424
Equivalent to 26 /8s, 188 /16s and 121 /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, 196608-197631
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 30812
Total LACNIC prefixes after maximum aggregation: 7123
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 29537
Unique aggregates announced from the LACNIC address blocks: 15338
LACNIC Region origin ASes present in the Internet Routing Table: 1406
LACNIC Prefixes per ASN: 21.01
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 244
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 78293760
Equivalent to 4 /8s, 170 /16s and 171 /24s
Percentage of available LACNIC address space announced: 58.3
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: 7707
Total AfriNIC prefixes after maximum aggregation: 1901
AfriNIC Deaggregation factor: 4.05
Prefixes being announced from the AfriNIC address blocks: 5966
Unique aggregates announced from the AfriNIC address blocks: 1755
AfriNIC Region origin ASes present in the Internet Routing Table: 423
AfriNIC Prefixes per ASN: 14.10
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21737728
Equivalent to 1 /8s, 75 /16s and 177 /24s
Percentage of available AfriNIC address space announced: 43.2
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 1862 9449 512 Korea Telecom (KIX)
7545 1467 299 80 TPG Internet Pty Ltd
4755 1391 639 157 TATA Communications formerly
17488 1371 157 121 Hathway IP Over Cable Interne
17974 1318 459 27 PT TELEKOMUNIKASI INDONESIA
9583 1036 75 487 Sify Limited
24560 1030 309 166 Bharti Airtel Ltd., Telemedia
4808 985 1715 268 CNCGROUP IP network: China169
18101 908 116 139 Reliance Infocom Ltd Internet
9829 835 696 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 3736 3887 270 bellsouth.net, inc.
4323 2650 1088 402 Time Warner Telecom
19262 1833 4861 281 Verizon Global Networks
1785 1791 697 132 PaeTec Communications, Inc.
20115 1508 1530 636 Charter Communications
6478 1414 285 102 AT&T Worldnet Services
7018 1386 5671 884 AT&T WorldNet Services
2386 1308 572 926 AT&T Data Communications Serv
22773 1256 2864 72 Cox Communications, Inc.
11492 1239 233 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 457 1757 271 UPC Distribution Services
3292 443 2010 385 TDC Tele Danmark
8866 430 133 23 Bulgarian Telecommunication C
34984 419 92 191 BILISIM TELEKOM
9198 413 202 13 Kazakhtelecom Data Network Ad
8551 402 353 46 Bezeq International
702 396 1864 310 UUNET - Commercial IP service
12479 391 577 6 Uni2 Autonomous System
3301 381 1696 336 TeliaNet Sweden
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
10620 1344 250 156 TVCABLE BOGOTA
8151 1341 2627 365 UniNet S.A. de C.V.
28573 1197 932 78 NET Servicos de Comunicao S.A
6503 1170 355 80 AVANTEL, S.A.
7303 831 441 106 Telecom Argentina Stet-France
14420 579 49 87 CORPORACION NACIONAL DE TELEC
22047 563 310 15 VTR PUNTO NET S.A.
3816 493 214 97 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 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 1108 445 10 TEDATA
24863 744 147 39 LINKdotNET AS number
36992 658 278 159 Etisalat MISR
3741 263 986 225 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 162 440 89 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 3736 3887 270 bellsouth.net, inc.
4323 2650 1088 402 Time Warner Telecom
4766 1862 9449 512 Korea Telecom (KIX)
19262 1833 4861 281 Verizon Global Networks
1785 1791 697 132 PaeTec Communications, Inc.
20115 1508 1530 636 Charter Communications
7545 1467 299 80 TPG Internet Pty Ltd
6478 1414 285 102 AT&T Worldnet Services
4755 1391 639 157 TATA Communications formerly
7018 1386 5671 884 AT&T WorldNet Services
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 2650 2248 Time Warner Telecom
1785 1791 1659 PaeTec Communications, Inc.
19262 1833 1552 Verizon Global Networks
7545 1467 1387 TPG Internet Pty Ltd
4766 1862 1350 Korea Telecom (KIX)
6478 1414 1312 AT&T Worldnet Services
17974 1318 1291 PT TELEKOMUNIKASI INDONESIA
17488 1371 1250 Hathway IP Over Cable Interne
4755 1391 1234 TATA Communications formerly
10620 1344 1188 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
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
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
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.183.72.0/21 51941 >>UNKNOWN<<
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 /8:19 /9:10 /10:25 /11:70 /12:210
/13:428 /14:749 /15:1336 /16:11346 /17:5491 /18:9149
/19:18581 /20:23839 /21:24131 /22:31737 /23:30519 /24:176659
/25:981 /26:1076 /27:587 /28:155 /29:12 /30:2
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2306 3736 bellsouth.net, inc.
4323 1431 2650 Time Warner Telecom
6478 1372 1414 AT&T Worldnet Services
10620 1236 1344 TVCABLE BOGOTA
11492 1197 1239 Cable One
18566 1070 1089 Covad Communications
7011 1069 1171 Citizens Utilities
1785 1065 1791 PaeTec Communications, Inc.
8452 973 1108 TEDATA
6503 955 1170 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:105 2:24 4:13 5:1 8:316 12:2024
13:6 14:83 15:17 16:3 17:8 20:10
24:1415 27:466 32:61 33:7 34:2 36:1
37:1 38:712 40:101 41:2642 42:1 44:3
46:306 47:10 49:34 50:16 52:12 55:7
56:2 57:29 58:857 59:501 60:482 61:1108
62:1020 63:1943 64:3708 65:2320 66:4089 67:1755
68:999 69:2819 70:717 71:389 72:1923 74:2282
75:287 76:319 77:865 78:691 79:435 80:1056
81:799 82:508 83:445 84:631 85:1030 86:490
87:703 88:395 89:1582 90:128 91:3272 92:455
93:1014 94:1097 95:686 96:405 97:244 98:695
99:33 101:3 107:2 108:69 109:771 110:426
111:667 112:310 113:318 114:479 115:646 116:1133
117:658 118:582 119:1013 120:182 121:713 122:1543
123:972 124:1227 125:1282 128:228 129:152 130:171
131:565 132:234 133:20 134:208 135:46 136:213
137:146 138:288 139:109 140:480 141:195 142:348
143:524 144:485 145:54 146:426 147:178 148:641
149:328 150:149 151:231 152:294 153:173 154:3
155:367 156:167 157:339 158:126 159:366 160:308
161:199 162:276 163:166 164:433 165:332 166:466
167:422 168:709 169:151 170:724 171:67 172:2
173:1124 174:431 175:256 176:1 178:652 180:713
182:523 183:242 184:185 186:886 187:749 188:875
189:1017 190:4229 192:5777 193:4801 194:3470 195:2888
196:1222 197:1 198:3533 199:3660 200:5485 201:1575
202:8254 203:8356 204:4046 205:2337 206:2518 207:2979
208:3857 209:3458 210:2535 211:1307 212:1801 213:1721
214:704 215:62 216:4748 217:1606 218:518 219:399
220:1184 221:436 222:342 223:76
End of report
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