Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Feb 1 18:33:52 UTC 2013
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 02 Feb, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 440794
Prefixes after maximum aggregation: 181771
Deaggregation factor: 2.42
Unique aggregates announced to Internet: 216723
Total ASes present in the Internet Routing Table: 43204
Prefixes per ASN: 10.20
Origin-only ASes present in the Internet Routing Table: 34128
Origin ASes announcing only one prefix: 15925
Transit ASes present in the Internet Routing Table: 5738
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 44
Max AS path prepend of ASN ( 28730) 25
Prefixes from unregistered ASNs in the Routing Table: 386
Unregistered ASNs in the Routing Table: 132
Number of 32-bit ASNs allocated by the RIRs: 3721
Number of 32-bit ASNs visible in the Routing Table: 3338
Prefixes from 32-bit ASNs in the Routing Table: 9176
Special use prefixes present in the Routing Table: 17
Prefixes being announced from unallocated address space: 211
Number of addresses announced to Internet: 2614575756
Equivalent to 155 /8s, 215 /16s and 66 /24s
Percentage of available address space announced: 70.6
Percentage of allocated address space announced: 70.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.2
Total number of prefixes smaller than registry allocations: 155465
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 105955
Total APNIC prefixes after maximum aggregation: 33038
APNIC Deaggregation factor: 3.21
Prefixes being announced from the APNIC address blocks: 107002
Unique aggregates announced from the APNIC address blocks: 43739
APNIC Region origin ASes present in the Internet Routing Table: 4815
APNIC Prefixes per ASN: 22.22
APNIC Region origin ASes announcing only one prefix: 1240
APNIC Region transit ASes present in the Internet Routing Table: 807
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 418
Number of APNIC addresses announced to Internet: 717823104
Equivalent to 42 /8s, 201 /16s and 28 /24s
Percentage of available APNIC address space announced: 83.9
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: 155383
Total ARIN prefixes after maximum aggregation: 78669
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 155986
Unique aggregates announced from the ARIN address blocks: 70782
ARIN Region origin ASes present in the Internet Routing Table: 15445
ARIN Prefixes per ASN: 10.10
ARIN Region origin ASes announcing only one prefix: 5839
ARIN Region transit ASes present in the Internet Routing Table: 1592
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 1075851136
Equivalent to 64 /8s, 32 /16s and 47 /24s
Percentage of available ARIN address space announced: 56.9
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: 113324
Total RIPE prefixes after maximum aggregation: 58515
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 116432
Unique aggregates announced from the RIPE address blocks: 74751
RIPE Region origin ASes present in the Internet Routing Table: 17049
RIPE Prefixes per ASN: 6.83
RIPE Region origin ASes announcing only one prefix: 8156
RIPE Region transit ASes present in the Internet Routing Table: 2777
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 44
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2160
Number of RIPE addresses announced to Internet: 653059940
Equivalent to 38 /8s, 236 /16s and 231 /24s
Percentage of available RIPE address space announced: 94.9
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, 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: 46480
Total LACNIC prefixes after maximum aggregation: 9100
LACNIC Deaggregation factor: 5.11
Prefixes being announced from the LACNIC address blocks: 50224
Unique aggregates announced from the LACNIC address blocks: 23555
LACNIC Region origin ASes present in the Internet Routing Table: 1794
LACNIC Prefixes per ASN: 28.00
LACNIC Region origin ASes announcing only one prefix: 512
LACNIC Region transit ASes present in the Internet Routing Table: 335
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 27
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 736
Number of LACNIC addresses announced to Internet: 123135528
Equivalent to 7 /8s, 86 /16s and 230 /24s
Percentage of available LACNIC address space announced: 73.4
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: 10337
Total AfriNIC prefixes after maximum aggregation: 2397
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 10939
Unique aggregates announced from the AfriNIC address blocks: 3709
AfriNIC Region origin ASes present in the Internet Routing Table: 590
AfriNIC Prefixes per ASN: 18.54
AfriNIC Region origin ASes announcing only one prefix: 178
AfriNIC Region transit ASes present in the Internet Routing Table: 127
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 7
Number of AfriNIC addresses announced to Internet: 44281856
Equivalent to 2 /8s, 163 /16s and 176 /24s
Percentage of available AfriNIC address space announced: 44.0
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 2932 11557 922 Korea Telecom (KIX)
17974 2475 829 53 PT TELEKOMUNIKASI INDONESIA
7545 1824 301 87 TPG Internet Pty Ltd
4755 1681 382 188 TATA Communications formerly
9829 1425 1150 45 BSNL National Internet Backbo
9583 1207 90 502 Sify Limited
7552 1164 1070 12 Vietel Corporation
4808 1101 2040 315 CNCGROUP IP network: China169
9498 1054 310 75 BHARTI Airtel Ltd.
24560 1044 385 160 Bharti Airtel Ltd., Telemedia
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 3093 3699 115 bellsouth.net, inc.
7029 2288 1265 211 Windstream Communications Inc
18566 2081 382 183 Covad Communications
22773 1965 2931 128 Cox Communications, Inc.
1785 1949 678 123 PaeTec Communications, Inc.
20115 1688 1608 625 Charter Communications
4323 1598 1155 394 Time Warner Telecom
30036 1345 287 698 Mediacom Communications Corp
7018 1298 10550 859 AT&T WorldNet Services
7011 1200 315 682 Citizens Utilities
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 1848 544 16 Corbina telecom
2118 1114 97 13 EUnet/RELCOM Autonomous Syste
34984 974 231 205 BILISIM TELEKOM
13188 842 99 22 Educational Network
12479 836 778 65 Uni2 Autonomous System
31148 755 39 18 FreeNet ISP
20940 742 252 589 Akamai Technologies European
8551 714 367 39 Bezeq International
6830 713 2313 434 UPC Distribution Services
58113 633 70 378 LIR DATACENTER TELECOM SRL
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 2308 395 224 TVCABLE BOGOTA
28573 2215 1315 81 NET Servicos de Comunicao S.A
7303 1679 1147 206 Telecom Argentina Stet-France
8151 1539 2892 379 UniNet S.A. de C.V.
6503 1473 435 67 AVANTEL, S.A.
14754 909 114 72 Telgua S. A.
27947 774 85 95 Telconet S.A
18881 756 716 18 Global Village Telecom
3816 676 306 85 Empresa Nacional de Telecomun
11172 604 86 67 Servicios Alestra S.A de C.V
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
36998 1286 80 4 MOBITEL
24863 896 275 36 LINKdotNET AS number
8452 529 958 13 TEDATA
6713 499 602 20 Itissalat Al-MAGHRIB
24835 329 80 8 RAYA Telecom - Egypt
3741 266 906 224 The Internet Solution
12258 193 28 67 Vodacom Internet Company
15706 191 32 6 Sudatel Internet Exchange Aut
29975 191 667 21 Vodacom
16637 190 696 90 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 3093 3699 115 bellsouth.net, inc.
4766 2932 11557 922 Korea Telecom (KIX)
17974 2475 829 53 PT TELEKOMUNIKASI INDONESIA
10620 2308 395 224 TVCABLE BOGOTA
7029 2288 1265 211 Windstream Communications Inc
28573 2215 1315 81 NET Servicos de Comunicao S.A
18566 2081 382 183 Covad Communications
22773 1965 2931 128 Cox Communications, Inc.
1785 1949 678 123 PaeTec Communications, Inc.
8402 1848 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
17974 2475 2422 PT TELEKOMUNIKASI INDONESIA
28573 2215 2134 NET Servicos de Comunicao S.A
10620 2308 2084 TVCABLE BOGOTA
7029 2288 2077 Windstream Communications Inc
4766 2932 2010 Korea Telecom (KIX)
18566 2081 1898 Covad Communications
22773 1965 1837 Cox Communications, Inc.
8402 1848 1832 Corbina telecom
1785 1949 1826 PaeTec Communications, Inc.
7545 1824 1737 TPG Internet Pty Ltd
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
30031 UNALLOCATED 12.27.122.0/24 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 12.45.103.0/24 209 Qwest
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
26064 UNALLOCATED 12.149.37.0/24 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
128.0.0.0/24 2876 Jump Management SRL
128.0.16.0/21 43568 RIPE Network Coordination Cen
128.0.24.0/21 41794 Altline LLC
128.0.60.0/23 57417 INTERNET TASMANIA SRL
128.0.62.0/23 57417 INTERNET TASMANIA SRL
128.0.72.0/21 23456 32-bit ASN transition
128.0.80.0/20 52041 Timer LTD
128.0.96.0/21 12886 LEWTelNet GmbH
128.0.104.0/23 51848 FOP Gabidullina Ludmila Nikol
128.0.106.0/24 23456 32-bit ASN transition
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
27.112.114.0/24 23884 Proimage Engineering and Comm
31.210.16.0/22 15657 Neural Networks ASN
41.222.80.0/21 37110 Moztel LDA
62.12.96.0/19 38478 SunnyVision Limited
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.185.224.0/24 27431 JTL Networks Inc.
64.185.225.0/24 27431 JTL Networks Inc.
64.185.226.0/24 27431 JTL Networks Inc.
64.185.227.0/24 27431 JTL Networks Inc.
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 /8:17 /9:13 /10:29 /11:88 /12:246
/13:481 /14:865 /15:1548 /16:12551 /17:6601 /18:10967
/19:21729 /20:31101 /21:33241 /22:45078 /23:40752 /24:231230
/25:1364 /26:1742 /27:858 /28:183 /29:73 /30:17
/31:0 /32:20
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2031 2081 Covad Communications
6389 1769 3093 bellsouth.net, inc.
7029 1643 2288 Windstream Communications Inc
8402 1577 1848 Corbina telecom
22773 1292 1965 Cox Communications, Inc.
36998 1280 1286 MOBITEL
30036 1238 1345 Mediacom Communications Corp
11492 1158 1195 Cable One
1785 1031 1949 PaeTec Communications, Inc.
6503 983 1473 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:684 2:749 3:3 4:13 5:737 6:3
8:490 12:1927 13:3 14:719 15:11 16:3
17:8 20:25 23:237 24:1799 27:1471 31:1127
32:54 33:2 34:5 36:10 37:1230 38:845
39:2 40:139 41:2649 42:180 44:4 46:1725
47:1 49:547 50:643 52:12 54:28 55:7
57:28 58:1078 59:556 60:251 61:1320 62:999
63:2027 64:4338 65:2158 66:4265 67:2018 68:1119
69:3228 70:858 71:535 72:1879 74:2544 75:421
76:291 77:1061 78:1034 79:552 80:1209 81:981
82:639 83:534 84:578 85:1147 86:477 87:969
88:370 89:1740 90:285 91:5389 92:616 93:1708
94:2013 95:1614 96:489 97:333 98:1052 99:52
100:30 101:305 103:2059 105:519 106:131 107:208
108:508 109:1751 110:848 111:1005 112:482 113:740
114:683 115:932 116:877 117:788 118:978 119:1263
120:343 121:702 122:1731 123:1178 124:1320 125:1306
128:545 129:200 130:312 131:645 132:327 133:143
134:254 135:62 136:213 137:237 138:340 139:155
140:216 141:314 142:509 143:365 144:474 145:90
146:527 147:332 148:730 149:341 150:159 151:328
152:399 153:190 154:25 155:367 156:241 157:395
158:258 159:708 160:334 161:415 162:370 163:202
164:581 165:462 166:465 167:571 168:1007 169:131
170:1012 171:164 172:4 173:1543 174:616 175:422
176:1002 177:1624 178:1703 180:1375 181:222 182:1157
183:323 184:642 185:197 186:2262 187:1464 188:1935
189:1547 190:6557 192:6221 193:5671 194:4648 195:3657
196:1283 197:808 198:4108 199:5194 200:6005 201:2177
202:8803 203:8732 204:4463 205:2545 206:2798 207:2789
208:4076 209:3528 210:2912 211:1563 212:1982 213:1886
214:906 215:93 216:5073 217:1581 218:591 219:326
220:1267 221:548 222:337 223:415
End of report
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