[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jun 29 18:46:27 UTC 2012
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,
TRNOG, 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 <pfsinoz at gmail.com>.
Routing Table Report 04:00 +10GMT Sat 30 Jun, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 414947
Prefixes after maximum aggregation: 175422
Deaggregation factor: 2.37
Unique aggregates announced to Internet: 202271
Total ASes present in the Internet Routing Table: 41386
Prefixes per ASN: 10.03
Origin-only ASes present in the Internet Routing Table: 33302
Origin ASes announcing only one prefix: 15652
Transit ASes present in the Internet Routing Table: 5545
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 27
Max AS path prepend of ASN ( 51742) 24
Prefixes from unregistered ASNs in the Routing Table: 388
Unregistered ASNs in the Routing Table: 122
Number of 32-bit ASNs allocated by the RIRs: 2907
Number of 32-bit ASNs visible in the Routing Table: 2539
Prefixes from 32-bit ASNs in the Routing Table: 6532
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 184
Number of addresses announced to Internet: 2570382252
Equivalent to 153 /8s, 52 /16s and 235 /24s
Percentage of available address space announced: 69.3
Percentage of allocated address space announced: 69.4
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 93.0
Total number of prefixes smaller than registry allocations: 143966
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 101216
Total APNIC prefixes after maximum aggregation: 32691
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 101660
Unique aggregates announced from the APNIC address blocks: 41966
APNIC Region origin ASes present in the Internet Routing Table: 4712
APNIC Prefixes per ASN: 21.57
APNIC Region origin ASes announcing only one prefix: 1241
APNIC Region transit ASes present in the Internet Routing Table: 752
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 239
Number of APNIC addresses announced to Internet: 703244928
Equivalent to 41 /8s, 234 /16s and 170 /24s
Percentage of available APNIC address space announced: 82.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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, 150/8, 153/8,
163/8, 171/8, 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: 152291
Total ARIN prefixes after maximum aggregation: 77306
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 153229
Unique aggregates announced from the ARIN address blocks: 68328
ARIN Region origin ASes present in the Internet Routing Table: 15177
ARIN Prefixes per ASN: 10.10
ARIN Region origin ASes announcing only one prefix: 5747
ARIN Region transit ASes present in the Internet Routing Table: 1606
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 1081167232
Equivalent to 64 /8s, 113 /16s and 77 /24s
Percentage of available ARIN address space announced: 57.2
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, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 103797
Total RIPE prefixes after maximum aggregation: 54908
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 105956
Unique aggregates announced from the RIPE address blocks: 66912
RIPE Region origin ASes present in the Internet Routing Table: 16636
RIPE Prefixes per ASN: 6.37
RIPE Region origin ASes announcing only one prefix: 8058
RIPE Region transit ASes present in the Internet Routing Table: 2679
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1671
Number of RIPE addresses announced to Internet: 633563396
Equivalent to 37 /8s, 195 /16s and 105 /24s
Percentage of available RIPE address space announced: 92.1
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
59392-61439, 196608-199679
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 41665
Total LACNIC prefixes after maximum aggregation: 8295
LACNIC Deaggregation factor: 5.02
Prefixes being announced from the LACNIC address blocks: 44210
Unique aggregates announced from the LACNIC address blocks: 21613
LACNIC Region origin ASes present in the Internet Routing Table: 1607
LACNIC Prefixes per ASN: 27.51
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 306
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 607
Number of LACNIC addresses announced to Internet: 111606184
Equivalent to 6 /8s, 166 /16s and 249 /24s
Percentage of available LACNIC address space announced: 66.5
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,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9252
Total AfriNIC prefixes after maximum aggregation: 2168
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 9708
Unique aggregates announced from the AfriNIC address blocks: 3313
AfriNIC Region origin ASes present in the Internet Routing Table: 549
AfriNIC Prefixes per ASN: 17.68
AfriNIC Region origin ASes announcing only one prefix: 172
AfriNIC Region transit ASes present in the Internet Routing Table: 123
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 40494848
Equivalent to 2 /8s, 105 /16s and 231 /24s
Percentage of available AfriNIC address space announced: 40.2
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2700 11118 1203 Korea Telecom (KIX)
17974 1971 541 77 PT TELEKOMUNIKASI INDONESIA
7545 1689 301 87 TPG Internet Pty Ltd
4755 1597 386 154 TATA Communications formerly
9829 1304 1085 28 BSNL National Internet Backbo
9583 1168 87 508 Sify Limited
4808 1109 2052 314 CNCGROUP IP network: China169
7552 1100 1062 11 Vietel Corporation
24560 1035 385 165 Bharti Airtel Ltd., Telemedia
9498 968 291 64 BHARTI Airtel Ltd.
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 3397 3790 189 bellsouth.net, inc.
7029 3210 986 157 Windstream Communications Inc
18566 2090 382 180 Covad Communications
1785 1930 681 132 PaeTec Communications, Inc.
22773 1655 2911 121 Cox Communications, Inc.
20115 1651 1573 616 Charter Communications
4323 1573 1043 384 Time Warner Telecom
30036 1446 272 750 Mediacom Communications Corp
7018 1252 10027 820 AT&T WorldNet Services
11492 1186 216 362 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
8402 1675 544 16 Corbina telecom
2118 1288 97 14 EUnet/RELCOM Autonomous Syste
12479 783 731 92 Uni2 Autonomous System
34984 716 189 175 BILISIM TELEKOM
6830 690 2234 438 UPC Distribution Services
31148 683 37 9 FreeNet ISP
20940 663 209 513 Akamai Technologies European
8551 582 364 61 Bezeq International
13188 503 100 10 Educational Network
3320 495 8443 408 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 1980 344 205 TVCABLE BOGOTA
28573 1966 1213 54 NET Servicos de Comunicao S.A
6503 1527 418 65 AVANTEL, S.A.
7303 1454 933 192 Telecom Argentina Stet-France
8151 1370 3066 339 UniNet S.A. de C.V.
27947 706 74 94 Telconet S.A
11172 643 91 74 Servicios Alestra S.A de C.V
3816 589 248 86 Empresa Nacional de Telecomun
22047 583 326 15 VTR PUNTO NET S.A.
14117 567 65 59 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 1269 958 13 TEDATA
24863 859 274 35 LINKdotNET AS number
6713 500 649 18 Itissalat Al-MAGHRIB
24835 321 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
33776 210 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
16637 169 664 87 MTN Network Solutions
29975 167 571 19 Vodacom
15706 164 32 6 Sudatel Internet Exchange Aut
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 3397 3790 189 bellsouth.net, inc.
7029 3210 986 157 Windstream Communications Inc
4766 2700 11118 1203 Korea Telecom (KIX)
18566 2090 382 180 Covad Communications
10620 1980 344 205 TVCABLE BOGOTA
17974 1971 541 77 PT TELEKOMUNIKASI INDONESIA
28573 1966 1213 54 NET Servicos de Comunicao S.A
1785 1930 681 132 PaeTec Communications, Inc.
7545 1689 301 87 TPG Internet Pty Ltd
8402 1675 544 16 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3210 3053 Windstream Communications Inc
28573 1966 1912 NET Servicos de Comunicao S.A
18566 2090 1910 Covad Communications
17974 1971 1894 PT TELEKOMUNIKASI INDONESIA
1785 1930 1798 PaeTec Communications, Inc.
10620 1980 1775 TVCABLE BOGOTA
8402 1675 1659 Corbina telecom
7545 1689 1602 TPG Internet Pty Ltd
22773 1655 1534 Cox Communications, Inc.
4766 2700 1497 Korea Telecom (KIX)
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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
14764 UNALLOCATED 12.108.237.0/24 7018 AT&T WorldNet Servic
33649 UNALLOCATED 12.111.112.0/24 19029 New Edge Networks
29760 UNALLOCATED 12.145.34.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.102.168.0/21 50300 Custodian Ltd.
5.104.0.0/24 47883 KIBRIS MOBILE TELEKOMUNIKASYO
5.104.0.0/20 47883 KIBRIS MOBILE TELEKOMUNIKASYO
5.104.1.0/24 47883 KIBRIS MOBILE TELEKOMUNIKASYO
5.104.2.0/24 47883 KIBRIS MOBILE TELEKOMUNIKASYO
5.104.3.0/24 47883 KIBRIS MOBILE TELEKOMUNIKASYO
5.104.4.0/24 47883 KIBRIS MOBILE TELEKOMUNIKASYO
5.104.5.0/24 47883 KIBRIS MOBILE TELEKOMUNIKASYO
5.104.6.0/24 47883 KIBRIS MOBILE TELEKOMUNIKASYO
5.104.7.0/24 47883 KIBRIS MOBILE TELEKOMUNIKASYO
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 /9:13 /10:28 /11:83 /12:236
/13:464 /14:836 /15:1513 /16:12290 /17:6342 /18:10751
/19:20840 /20:29627 /21:31358 /22:40928 /23:38970 /24:216921
/25:1232 /26:1485 /27:864 /28:42 /29:64 /30:18
/31:0 /32:23
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2619 3210 Windstream Communications Inc
18566 2040 2090 Covad Communications
6389 1871 3397 bellsouth.net, inc.
30036 1383 1446 Mediacom Communications Corp
8402 1372 1675 Corbina telecom
11492 1149 1186 Cable One
22773 1087 1655 Cox Communications, Inc.
6503 1059 1527 AVANTEL, S.A.
1785 1041 1930 PaeTec Communications, Inc.
8452 1030 1269 TEDATA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:568 2:734 3:1 4:13 5:95 6:3
8:434 12:2010 13:1 14:632 15:12 16:3
17:5 20:24 23:190 24:1786 27:1317 31:997
32:56 33:2 34:2 36:9 37:594 38:816
39:1 40:128 41:3114 42:142 44:3 46:1462
47:2 49:419 50:564 52:13 54:12 55:7
56:1 57:34 58:989 59:499 60:253 61:1230
62:1001 63:2036 64:4253 65:2254 66:4471 67:2019
68:1152 69:3199 70:982 71:503 72:1834 74:2607
75:475 76:332 77:955 78:902 79:491 80:1219
81:948 82:669 83:526 84:504 85:1192 86:422
87:932 88:342 89:1736 90:300 91:4978 92:579
93:1366 94:1592 95:1239 96:372 97:318 98:906
99:39 100:18 101:251 103:1214 106:103 107:189
108:354 109:1411 110:786 111:938 112:415 113:631
114:650 115:826 116:928 117:733 118:923 119:1237
120:350 121:695 122:1671 123:1098 124:1396 125:1258
128:553 129:198 130:254 131:634 132:291 133:22
134:245 135:61 136:213 137:240 138:336 139:175
140:494 141:254 142:435 143:374 144:534 145:76
146:509 147:287 148:768 149:318 150:156 151:175
152:473 153:175 154:17 155:433 156:219 157:381
158:191 159:620 160:343 161:269 162:352 163:192
164:654 165:411 166:583 167:473 168:909 169:126
170:890 171:145 172:5 173:1765 174:627 175:430
176:553 177:872 178:1534 180:1267 181:98 182:1010
183:244 184:533 185:1 186:1864 187:1089 188:1350
189:1602 190:5752 192:6008 193:5546 194:4546 195:3430
196:1196 197:164 198:3672 199:4821 200:5924 201:1981
202:8683 203:8633 204:4334 205:2537 206:2806 207:2792
208:4043 209:3615 210:2778 211:1555 212:2029 213:1921
214:847 215:83 216:5111 217:1570 218:550 219:318
220:1233 221:570 222:321 223:353
End of report
More information about the sanog
mailing list