[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jul 2 18:13:18 UTC 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 NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG and
the RIPE Routing Working Group.
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 03 Jul, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 324314
Prefixes after maximum aggregation: 149409
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 158777
Total ASes present in the Internet Routing Table: 34277
Prefixes per ASN: 9.46
Origin-only ASes present in the Internet Routing Table: 29765
Origin ASes announcing only one prefix: 14419
Transit ASes present in the Internet Routing Table: 4512
Transit-only ASes present in the Internet Routing Table: 107
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 269
Unregistered ASNs in the Routing Table: 114
Number of 32-bit ASNs allocated by the RIRs: 657
Prefixes from 32-bit ASNs in the Routing Table: 777
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 161
Number of addresses announced to Internet: 2252946208
Equivalent to 134 /8s, 73 /16s and 59 /24s
Percentage of available address space announced: 60.8
Percentage of allocated address space announced: 65.5
Percentage of available address space allocated: 92.8
Percentage of address space in use by end-sites: 83.6
Total number of prefixes smaller than registry allocations: 154912
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 78350
Total APNIC prefixes after maximum aggregation: 27003
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 75198
Unique aggregates announced from the APNIC address blocks: 33264
APNIC Region origin ASes present in the Internet Routing Table: 4098
APNIC Prefixes per ASN: 18.35
APNIC Region origin ASes announcing only one prefix: 1122
APNIC Region transit ASes present in the Internet Routing Table: 640
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 525699616
Equivalent to 31 /8s, 85 /16s and 138 /24s
Percentage of available APNIC address space announced: 78.3
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: 134542
Total ARIN prefixes after maximum aggregation: 69307
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 107370
Unique aggregates announced from the ARIN address blocks: 41845
ARIN Region origin ASes present in the Internet Routing Table: 13759
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5287
ARIN Region transit ASes present in the Internet Routing Table: 1349
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 730656800
Equivalent to 43 /8s, 140 /16s and 240 /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, 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: 74631
Total RIPE prefixes after maximum aggregation: 43298
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 67750
Unique aggregates announced from the RIPE address blocks: 44478
RIPE Region origin ASes present in the Internet Routing Table: 14568
RIPE Prefixes per ASN: 4.65
RIPE Region origin ASes announcing only one prefix: 7503
RIPE Region transit ASes present in the Internet Routing Table: 2158
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 433071392
Equivalent to 25 /8s, 208 /16s and 37 /24s
Percentage of available RIPE address space announced: 75.9
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: 28481
Total LACNIC prefixes after maximum aggregation: 6882
LACNIC Deaggregation factor: 4.14
Prefixes being announced from the LACNIC address blocks: 27028
Unique aggregates announced from the LACNIC address blocks: 14292
LACNIC Region origin ASes present in the Internet Routing Table: 1296
LACNIC Prefixes per ASN: 20.85
LACNIC Region origin ASes announcing only one prefix: 394
LACNIC Region transit ASes present in the Internet Routing Table: 228
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 74937536
Equivalent to 4 /8s, 119 /16s and 116 /24s
Percentage of available LACNIC address space announced: 55.8
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: 7313
Total AfriNIC prefixes after maximum aggregation: 1862
AfriNIC Deaggregation factor: 3.93
Prefixes being announced from the AfriNIC address blocks: 5614
Unique aggregates announced from the AfriNIC address blocks: 1738
AfriNIC Region origin ASes present in the Internet Routing Table: 378
AfriNIC Prefixes per ASN: 14.85
AfriNIC Region origin ASes announcing only one prefix: 113
AfriNIC Region transit ASes present in the Internet Routing Table: 86
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 19531520
Equivalent to 1 /8s, 42 /16s and 7 /24s
Percentage of available AfriNIC address space announced: 58.2
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 1851 8423 487 Korea Telecom (KIX)
4755 1367 295 161 TATA Communications formerly
7545 1345 232 105 TPG Internet Pty Ltd
17488 1322 140 131 Hathway IP Over Cable Interne
17974 1152 285 30 PT TELEKOMUNIKASI INDONESIA
9583 994 73 487 Sify Limited
24560 927 307 171 Bharti Airtel Ltd., Telemedia
4134 876 21292 408 CHINANET-BACKBONE
4808 827 1572 216 CNCGROUP IP network: China169
9829 810 684 41 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 3910 3734 293 bellsouth.net, inc.
4323 2715 1114 394 Time Warner Telecom
19262 1825 4562 275 Verizon Global Networks
1785 1777 698 129 PaeTec Communications, Inc.
20115 1561 1520 655 Charter Communications
7018 1508 5736 957 AT&T WorldNet Services
6478 1289 260 91 AT&T Worldnet Services
2386 1282 568 906 AT&T Data Communications Serv
3356 1176 10875 404 Level 3 Communications, LLC
22773 1167 2859 65 Cox Communications, Inc.
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 648 56 6 United Telecom of Georgia
3292 452 2027 393 TDC Tele Danmark
30890 443 111 205 Evolva Telecom
702 411 1869 327 UUNET - Commercial IP service
9198 408 202 13 Kazakhtelecom Data Network Ad
8866 402 117 18 Bulgarian Telecommunication C
8551 400 353 46 Bezeq International
3320 373 7329 324 Deutsche Telekom AG
3301 372 1414 327 TeliaNet Sweden
34984 360 89 185 BILISIM TELEKOM
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 1518 3017 245 UniNet S.A. de C.V.
10620 1066 238 150 TVCABLE BOGOTA
28573 1023 791 97 NET Servicos de Comunicao S.A
7303 748 385 106 Telecom Argentina Stet-France
6503 554 137 183 AVANTEL, S.A.
22047 548 310 15 VTR PUNTO NET S.A.
3816 495 217 81 Empresa Nacional de Telecomun
7738 477 922 30 Telecomunicacoes da Bahia S.A
14420 471 33 69 ANDINATEL S.A.
11172 449 99 76 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 1152 445 10 TEDATA
24863 728 147 39 LINKdotNET AS number
36992 644 279 184 Etisalat MISR
3741 267 834 228 The Internet Solution
33776 219 12 11 Starcomms Nigeria Limited
2018 210 244 61 Tertiary Education Network
6713 195 186 16 Itissalat Al-MAGHRIB
24835 192 78 10 RAYA Telecom - Egypt
29571 176 19 10 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 3910 3734 293 bellsouth.net, inc.
4323 2715 1114 394 Time Warner Telecom
4766 1851 8423 487 Korea Telecom (KIX)
19262 1825 4562 275 Verizon Global Networks
1785 1777 698 129 PaeTec Communications, Inc.
20115 1561 1520 655 Charter Communications
8151 1518 3017 245 UniNet S.A. de C.V.
7018 1508 5736 957 AT&T WorldNet Services
4755 1367 295 161 TATA Communications formerly
7545 1345 232 105 TPG Internet Pty Ltd
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2715 2321 Time Warner Telecom
1785 1777 1648 PaeTec Communications, Inc.
19262 1825 1550 Verizon Global Networks
4766 1851 1364 Korea Telecom (KIX)
8151 1518 1273 UniNet S.A. de C.V.
7545 1345 1240 TPG Internet Pty Ltd
4755 1367 1206 TATA Communications formerly
6478 1289 1198 AT&T Worldnet Services
17488 1322 1191 Hathway IP Over Cable Interne
8452 1152 1142 TEDATA
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
31.1.0.0/21 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
41.223.189.0/24 6453 Teleglobe Inc.
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 /8:20 /9:10 /10:25 /11:68 /12:196
/13:406 /14:707 /15:1285 /16:11156 /17:5338 /18:9126
/19:18399 /20:22806 /21:22871 /22:29932 /23:29604 /24:169130
/25:1031 /26:1320 /27:707 /28:117 /29:47 /30:6
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2504 3910 bellsouth.net, inc.
4766 1482 1851 Korea Telecom (KIX)
4323 1396 2715 Time Warner Telecom
1785 1239 1777 PaeTec Communications, Inc.
11492 1070 1160 Cable One
17488 1069 1322 Hathway IP Over Cable Interne
18566 1069 1088 Covad Communications
8452 1040 1152 TEDATA
10620 982 1066 TVCABLE BOGOTA
7018 911 1508 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:6 2:10 4:13 8:286 12:2012 13:7
14:1 15:23 16:3 17:8 20:17 24:1452
27:187 31:1 32:48 33:12 38:679 40:98
41:2440 44:3 47:12 52:9 55:4 56:2
57:25 58:749 59:501 60:459 61:1090 62:1055
63:1977 64:3659 65:2361 66:4037 67:1810 68:1105
69:2874 70:723 71:380 72:1953 73:2 74:2263
75:253 76:313 77:952 78:604 79:437 80:981
81:799 82:489 83:435 84:710 85:1053 86:452
87:678 88:342 89:1567 90:93 91:2847 92:489
93:985 94:1400 95:637 96:352 97:207 98:574
99:29 108:97 109:551 110:364 111:535 112:266
113:315 114:427 115:563 116:1073 117:661 118:483
119:944 120:127 121:728 122:1452 123:927 124:1122
125:1321 128:226 129:202 130:196 131:555 132:251
133:17 134:197 135:42 136:241 137:159 138:264
139:104 140:480 141:198 142:346 143:392 144:452
145:50 146:435 147:168 148:606 149:301 150:149
151:230 152:302 153:169 154:2 155:328 156:157
157:319 158:107 159:378 160:316 161:181 162:254
163:176 164:408 165:365 166:462 167:404 168:652
169:157 170:713 171:58 172:2 173:875 174:468
175:105 176:1 178:248 180:516 182:147 183:228
184:103 186:487 187:387 188:993 189:744 190:3742
192:5739 193:4714 194:3365 195:2798 196:1181 198:3573
199:3452 200:5258 201:1523 202:7942 203:8278 204:4070
205:2339 206:2521 207:3105 208:3871 209:3443 210:2523
211:1265 212:1694 213:1666 214:637 215:68 216:4659
217:1522 218:493 219:379 220:1134 221:398 222:314
223:1
End of report
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