[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri May 28 18:09:51 UTC 2010
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net
For historical data, please see http://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 29 May, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 321666
Prefixes after maximum aggregation: 148426
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 156760
Total ASes present in the Internet Routing Table: 34085
Prefixes per ASN: 9.44
Origin-only ASes present in the Internet Routing Table: 29586
Origin ASes announcing only one prefix: 14361
Transit ASes present in the Internet Routing Table: 4499
Transit-only ASes present in the Internet Routing Table: 100
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 332
Unregistered ASNs in the Routing Table: 121
Number of 32-bit ASNs allocated by the RIRs: 591
Prefixes from 32-bit ASNs in the Routing Table: 675
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 162
Number of addresses announced to Internet: 2257820704
Equivalent to 134 /8s, 147 /16s and 156 /24s
Percentage of available address space announced: 60.9
Percentage of allocated address space announced: 66.3
Percentage of available address space allocated: 91.9
Percentage of address space in use by end-sites: 83.0
Total number of prefixes smaller than registry allocations: 153947
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 76876
Total APNIC prefixes after maximum aggregation: 26795
APNIC Deaggregation factor: 2.87
Prefixes being announced from the APNIC address blocks: 73868
Unique aggregates announced from the APNIC address blocks: 32526
APNIC Region origin ASes present in the Internet Routing Table: 4061
APNIC Prefixes per ASN: 18.19
APNIC Region origin ASes announcing only one prefix: 1119
APNIC Region transit ASes present in the Internet Routing Table: 631
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 520615232
Equivalent to 31 /8s, 7 /16s and 245 /24s
Percentage of available APNIC address space announced: 77.6
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, 43/8, 58/8, 59/8, 60/8,
61/8, 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: 133880
Total ARIN prefixes after maximum aggregation: 68966
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 106763
Unique aggregates announced from the ARIN address blocks: 40970
ARIN Region origin ASes present in the Internet Routing Table: 13704
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5273
ARIN Region transit ASes present in the Internet Routing Table: 1348
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 731534880
Equivalent to 43 /8s, 154 /16s and 86 /24s
Percentage of available ARIN address space announced: 62.3
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, 45/8, 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: 74212
Total RIPE prefixes after maximum aggregation: 43045
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 67190
Unique aggregates announced from the RIPE address blocks: 44130
RIPE Region origin ASes present in the Internet Routing Table: 14487
RIPE Prefixes per ASN: 4.64
RIPE Region origin ASes announcing only one prefix: 7464
RIPE Region transit ASes present in the Internet Routing Table: 2168
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 428079040
Equivalent to 25 /8s, 131 /16s and 247 /24s
Percentage of available RIPE address space announced: 75.0
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: 28430
Total LACNIC prefixes after maximum aggregation: 6826
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 26846
Unique aggregates announced from the LACNIC address blocks: 14057
LACNIC Region origin ASes present in the Internet Routing Table: 1295
LACNIC Prefixes per ASN: 20.73
LACNIC Region origin ASes announcing only one prefix: 398
LACNIC Region transit ASes present in the Internet Routing Table: 227
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 73279744
Equivalent to 4 /8s, 94 /16s and 41 /24s
Percentage of available LACNIC address space announced: 72.8
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7359
Total AfriNIC prefixes after maximum aggregation: 1852
AfriNIC Deaggregation factor: 3.97
Prefixes being announced from the AfriNIC address blocks: 5668
Unique aggregates announced from the AfriNIC address blocks: 1668
AfriNIC Region origin ASes present in the Internet Routing Table: 363
AfriNIC Prefixes per ASN: 15.61
AfriNIC Region origin ASes announcing only one prefix: 107
AfriNIC Region transit ASes present in the Internet Routing Table: 82
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 17983744
Equivalent to 1 /8s, 18 /16s and 105 /24s
Percentage of available AfriNIC address space announced: 53.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1847 8422 483 Korea Telecom (KIX)
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1310 293 153 TATA Communications formerly
7545 1279 232 104 TPG Internet Pty Ltd
17974 1067 281 19 PT TELEKOMUNIKASI INDONESIA
9583 1001 74 491 Sify Limited
24560 907 306 171 Bharti Airtel Ltd., Telemedia
4134 875 21259 406 CHINANET-BACKBONE
4808 848 1571 213 CNCGROUP IP network: China169
9829 797 681 34 BSNL National Internet Backbo
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3922 3733 287 bellsouth.net, inc.
4323 3364 1116 404 Time Warner Telecom
1785 1787 699 130 PaeTec Communications, Inc.
20115 1528 1498 656 Charter Communications
7018 1515 5735 965 AT&T WorldNet Services
2386 1285 569 914 AT&T Data Communications Serv
6478 1252 257 97 AT&T Worldnet Services
3356 1186 10883 405 Level 3 Communications, LLC
22773 1155 2604 64 Cox Communications, Inc.
11492 1149 207 70 Cable One
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
35805 628 56 6 United Telecom of Georgia
3292 454 2028 395 TDC Tele Danmark
30890 444 116 208 Evolva Telecom
702 415 1869 330 UUNET - Commercial IP service
8551 402 355 38 Bezeq International
8866 399 117 18 Bulgarian Telecommunication C
3301 368 1414 323 TeliaNet Sweden
3320 365 7072 318 Deutsche Telekom AG
34984 358 88 183 BILISIM TELEKOM
12479 337 576 5 Uni2 Autonomous System
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1522 2965 245 UniNet S.A. de C.V.
10620 1050 236 151 TVCABLE BOGOTA
28573 893 724 77 NET Servicos de Comunicao S.A
7303 730 377 107 Telecom Argentina Stet-France
6503 588 174 209 AVANTEL, S.A.
22047 545 310 15 VTR PUNTO NET S.A.
7738 477 922 30 Telecomunicacoes da Bahia S.A
3816 473 204 73 Empresa Nacional de Telecomun
14117 455 30 13 Telefonica del Sur S.A.
11172 443 99 71 Servicios Alestra S.A de C.V
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1283 445 10 TEDATA
24863 713 147 39 LINKdotNET AS number
36992 638 278 185 Etisalat MISR
3741 270 852 231 The Internet Solution
2018 217 231 112 Tertiary Education Network
33776 213 11 14 Starcomms Nigeria Limited
6713 176 167 12 Itissalat Al-MAGHRIB
24835 176 78 10 RAYA Telecom - Egypt
29571 172 19 9 Ci Telecom Autonomous system
29975 133 506 14 Vodacom
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3922 3733 287 bellsouth.net, inc.
4323 3364 1116 404 Time Warner Telecom
4766 1847 8422 483 Korea Telecom (KIX)
1785 1787 699 130 PaeTec Communications, Inc.
20115 1528 1498 656 Charter Communications
8151 1522 2965 245 UniNet S.A. de C.V.
7018 1515 5735 965 AT&T WorldNet Services
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1310 293 153 TATA Communications formerly
2386 1285 569 914 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3364 2960 Time Warner Telecom
1785 1787 1657 PaeTec Communications, Inc.
4766 1847 1364 Korea Telecom (KIX)
8151 1522 1277 UniNet S.A. de C.V.
8452 1283 1273 TEDATA
17488 1316 1193 Hathway IP Over Cable Interne
7545 1279 1175 TPG Internet Pty Ltd
4755 1310 1157 TATA Communications formerly
6478 1252 1155 AT&T Worldnet Services
22773 1155 1091 Cox Communications, Inc.
Complete listing at http://thyme.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 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
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.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.0.0.0/16 12654 RIPE NCC RIS Project
31.0.0.0/8 237 Merit Network
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<<
41.223.188.0/24 22351 Intelsat
41.223.196.0/24 36990 Alkan Telecom Ltd
41.223.197.0/24 36990 Alkan Telecom Ltd
41.223.198.0/24 36990 Alkan Telecom Ltd
Complete listing at http://thyme.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 /11:67 /12:194
/13:402 /14:692 /15:1274 /16:11080 /17:5285 /18:8994
/19:18272 /20:22581 /21:22622 /22:29517 /23:29210 /24:168435
/25:964 /26:1259 /27:628 /28:108 /29:10 /30:7
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2513 3922 bellsouth.net, inc.
4323 1850 3364 Time Warner Telecom
4766 1479 1847 Korea Telecom (KIX)
1785 1251 1787 PaeTec Communications, Inc.
8452 1170 1283 TEDATA
11492 1063 1149 Cable One
17488 1063 1316 Hathway IP Over Cable Interne
18566 1040 1059 Covad Communications
10620 966 1050 TVCABLE BOGOTA
7018 908 1515 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:13 8:261 12:2012 13:10 14:1
15:23 16:3 17:8 20:21 24:1424 27:111
31:1 32:47 33:12 38:673 40:98 41:2520
44:3 47:26 52:8 55:7 56:2 57:24
58:728 59:503 60:456 61:1080 62:1062 63:1974
64:3612 65:2348 66:4251 67:1826 68:1113 69:2855
70:714 71:243 72:1824 73:2 74:2093 75:253
76:309 77:863 78:624 79:425 80:1010 81:801
82:480 83:448 84:691 85:1058 86:466 87:693
88:333 89:1552 90:90 91:2776 92:505 93:1112
94:1423 95:598 96:280 97:315 98:566 99:28
108:32 109:492 110:360 111:500 112:263 113:296
114:411 115:578 116:1035 117:645 118:444 119:934
120:142 121:741 122:1436 123:913 124:1104 125:1315
128:211 129:210 130:193 131:559 132:247 133:17
134:196 135:45 136:222 137:171 138:256 139:103
140:482 141:136 142:353 143:386 144:475 145:52
146:424 147:165 148:611 149:291 150:153 151:169
152:261 153:168 154:2 155:326 156:156 157:325
158:107 159:374 160:315 161:179 162:258 163:180
164:407 165:348 166:473 167:398 168:781 169:165
170:710 171:53 172:2 173:767 174:661 175:92
176:1 178:145 180:479 182:79 183:128 184:45
186:392 187:345 188:1343 189:794 190:3662 192:5749
193:4695 194:3355 195:2783 196:1202 198:3564 199:3430
200:5365 201:1508 202:8017 203:8307 204:4066 205:2332
206:2526 207:3042 208:3889 209:3412 210:2508 211:1243
212:1748 213:1688 214:656 215:69 216:4659 217:1536
218:488 219:378 220:1123 221:399 222:316 223:1
End of report
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