[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Jul 15 16:06:44 BRT 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 en lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.
Routing Table Report 04:00 +10GMT Sat 16 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 363652
Prefixes after maximum aggregation: 165367
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 180640
Total ASes present in the Internet Routing Table: 38198
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31741
Origin ASes announcing only one prefix: 15260
Transit ASes present in the Internet Routing Table: 5195
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 917
Unregistered ASNs in the Routing Table: 532
Number of 32-bit ASNs allocated by the RIRs: 1559
Number of 32-bit ASNs visible in the Routing Table: 1262
Prefixes from 32-bit ASNs in the Routing Table: 2910
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 2477764128
Equivalent to 147 /8s, 175 /16s and 174 /24s
Percentage of available address space announced: 66.8
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 151592
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90715
Total APNIC prefixes after maximum aggregation: 30300
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 87321
Unique aggregates announced from the APNIC address blocks: 37425
APNIC Region origin ASes present in the Internet Routing Table: 4519
APNIC Prefixes per ASN: 19.32
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 716
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 61
Number of APNIC addresses announced to Internet: 622188352
Equivalent to 37 /8s, 21 /16s and 215 /24s
Percentage of available APNIC address space announced: 78.9
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: 141554
Total ARIN prefixes after maximum aggregation: 73093
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113475
Unique aggregates announced from the ARIN address blocks: 46690
ARIN Region origin ASes present in the Internet Routing Table: 14485
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5538
ARIN Region transit ASes present in the Internet Routing Table: 1526
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 802399872
Equivalent to 47 /8s, 211 /16s and 166 /24s
Percentage of available ARIN address space announced: 63.8
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: 86584
Total RIPE prefixes after maximum aggregation: 49219
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79927
Unique aggregates announced from the RIPE address blocks: 52892
RIPE Region origin ASes present in the Internet Routing Table: 15802
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7878
RIPE Region transit ASes present in the Internet Routing Table: 2504
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 919
Number of RIPE addresses announced to Internet: 479486528
Equivalent to 28 /8s, 148 /16s and 98 /24s
Percentage of available RIPE address space announced: 77.2
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, 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: 33534
Total LACNIC prefixes after maximum aggregation: 7585
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32747
Unique aggregates announced from the LACNIC address blocks: 17050
LACNIC Region origin ASes present in the Internet Routing Table: 1481
LACNIC Prefixes per ASN: 22.11
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 273
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 265
Number of LACNIC addresses announced to Internet: 86070528
Equivalent to 5 /8s, 33 /16s and 85 /24s
Percentage of available LACNIC address space announced: 57.0
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: 8177
Total AfriNIC prefixes after maximum aggregation: 1965
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6491
Unique aggregates announced from the AfriNIC address blocks: 1992
AfriNIC Region origin ASes present in the Internet Routing Table: 468
AfriNIC Prefixes per ASN: 13.87
AfriNIC Region origin ASes announcing only one prefix: 146
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24338944
Equivalent to 1 /8s, 115 /16s and 98 /24s
Percentage of available AfriNIC address space announced: 36.3
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 2469 11044 937 Korea Telecom (KIX)
7545 1554 301 85 TPG Internet Pty Ltd
17974 1543 456 45 PT TELEKOMUNIKASI INDONESIA
4755 1505 635 170 TATA Communications formerly
7552 1283 1064 7 Vietel Corporation
24560 1155 336 187 Bharti Airtel Ltd., Telemedia
9829 1106 923 47 BSNL National Internet Backbo
9583 1064 78 504 Sify Limited
4808 1047 2092 299 CNCGROUP IP network: China169
17488 966 187 106 Hathway IP Over Cable Interne
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 3599 3818 241 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1805 681 121 PaeTec Communications, Inc.
4323 1657 1082 400 Time Warner Telecom
20115 1594 1534 627 Charter Communications
19262 1410 4744 390 Verizon Global Networks
7018 1365 7069 892 AT&T WorldNet Services
22773 1351 2897 88 Cox Communications, Inc.
7029 1291 791 305 Windstream Communications Inc
2386 1260 520 907 AT&T Data Communications Serv
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
34984 535 106 184 BILISIM TELEKOM
6830 510 1780 315 UPC Distribution Services
3292 468 2078 403 TDC Tele Danmark
12479 458 593 7 Uni2 Autonomous System
20940 458 131 354 Akamai Technologies European
8866 449 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG
8551 404 354 44 Bezeq International
702 399 1803 312 UUNET - Commercial IP service
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 1549 284 162 TVCABLE BOGOTA
8151 1437 2746 353 UniNet S.A. de C.V.
28573 1277 995 77 NET Servicos de Comunicao S.A
7303 986 511 165 Telecom Argentina Stet-France
6503 749 354 74 AVANTEL, S.A.
14420 690 55 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 533 230 97 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 508 53 53 Telconet 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 795 147 36 LINKdotNET AS number
8452 780 445 11 TEDATA
15475 513 74 8 Nile Online
36992 315 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 175 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
16637 148 441 86 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 3599 3818 241 bellsouth.net, inc.
23456 2910 707 1559 32-bit ASN transition
4766 2469 11044 937 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1805 681 121 PaeTec Communications, Inc.
4323 1657 1082 400 Time Warner Telecom
20115 1594 1534 627 Charter Communications
7545 1554 301 85 TPG Internet Pty Ltd
10620 1549 284 162 TVCABLE BOGOTA
17974 1543 456 45 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1805 1684 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2469 1532 Korea Telecom (KIX)
17974 1543 1498 PT TELEKOMUNIKASI INDONESIA
7545 1554 1469 TPG Internet Pty Ltd
10620 1549 1387 TVCABLE BOGOTA
23456 2910 1351 32-bit ASN transition
4755 1505 1335 TATA Communications formerly
7552 1283 1276 Vietel Corporation
22773 1351 1263 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
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
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.21.192.0/20 11610 Internet Nebraska Corporation
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 /9:12 /10:26 /11:80 /12:232
/13:464 /14:795 /15:1396 /16:12005 /17:5876 /18:9821
/19:19496 /20:26056 /21:26209 /22:34865 /23:33683 /24:189377
/25:1057 /26:1247 /27:720 /28:198 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2216 3599 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1444 1549 TVCABLE BOGOTA
23456 1423 2910 32-bit ASN transition
11492 1097 1143 Cable One
7011 1056 1158 Citizens Utilities
6478 1055 1084 AT&T Worldnet Services
1785 1053 1805 PaeTec Communications, Inc.
7029 1038 1291 Windstream Communications Inc
22773 865 1351 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:328 2:44 4:16 5:1 6:3 8:338
12:1967 13:1 14:488 15:15 16:3 17:5
20:10 23:14 24:1679 27:824 31:502 32:64
33:4 34:2 36:4 38:745 40:104 41:2562
42:32 44:3 46:1037 47:3 49:201 50:471
52:13 54:2 55:4 56:2 57:35 58:863
59:479 60:386 61:1123 62:1033 63:1932 64:3954
65:2300 66:3889 67:1872 68:1103 69:3044 70:756
71:389 72:1888 74:2386 75:318 76:341 77:887
78:710 79:457 80:1116 81:840 82:499 83:454
84:691 85:1063 86:523 87:764 88:336 89:1534
90:224 91:3959 92:522 93:1050 94:1337 95:858
96:414 97:260 98:891 99:37 101:77 103:143
106:10 107:22 108:70 109:1022 110:607 111:712
112:305 113:406 114:552 115:686 116:978 117:689
118:832 119:1164 120:313 121:677 122:1608 123:979
124:1300 125:1277 128:245 129:171 130:169 131:575
132:111 133:21 134:213 135:48 136:216 137:137
138:297 139:116 140:482 141:244 142:403 143:416
144:483 145:55 146:452 147:211 148:680 149:248
150:160 151:189 152:342 153:182 154:4 155:397
156:198 157:323 158:138 159:454 160:311 161:202
162:309 163:164 164:499 165:366 166:529 167:433
168:734 169:153 170:847 171:78 172:1 173:1619
174:609 175:375 176:142 177:171 178:1005 180:898
181:23 182:492 183:231 184:344 185:1 186:1284
187:732 188:895 189:939 190:4979 192:5900 193:4975
194:3527 195:3029 196:1238 197:43 198:3581 199:3975
200:5561 201:1492 202:8416 203:8428 204:4235 205:2327
206:2668 207:2811 208:3969 209:3447 210:2693 211:1451
212:2100 213:1737 214:778 215:69 216:4936 217:1633
218:543 219:351 220:1231 221:496 222:337 223:218
End of report
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