[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 9 18:33:43 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 10 Aug, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 463025
Prefixes after maximum aggregation: 187283
Deaggregation factor: 2.47
Unique aggregates announced to Internet: 229238
Total ASes present in the Internet Routing Table: 44667
Prefixes per ASN: 10.37
Origin-only ASes present in the Internet Routing Table: 34951
Origin ASes announcing only one prefix: 16188
Transit ASes present in the Internet Routing Table: 5881
Transit-only ASes present in the Internet Routing Table: 159
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 29
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4144
Unregistered ASNs in the Routing Table: 1422
Number of 32-bit ASNs allocated by the RIRs: 4934
Number of 32-bit ASNs visible in the Routing Table: 3835
Prefixes from 32-bit ASNs in the Routing Table: 11571
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 273
Number of addresses announced to Internet: 2632015212
Equivalent to 156 /8s, 225 /16s and 93 /24s
Percentage of available address space announced: 71.1
Percentage of allocated address space announced: 71.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.8
Total number of prefixes smaller than registry allocations: 162512
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 111367
Total APNIC prefixes after maximum aggregation: 33976
APNIC Deaggregation factor: 3.28
Prefixes being announced from the APNIC address blocks: 113162
Unique aggregates announced from the APNIC address blocks: 46312
APNIC Region origin ASes present in the Internet Routing Table: 4862
APNIC Prefixes per ASN: 23.27
APNIC Region origin ASes announcing only one prefix: 1218
APNIC Region transit ASes present in the Internet Routing Table: 826
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 28
Number of APNIC region 32-bit ASNs visible in the Routing Table: 632
Number of APNIC addresses announced to Internet: 725744352
Equivalent to 43 /8s, 65 /16s and 250 /24s
Percentage of available APNIC address space announced: 84.8
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: 160175
Total ARIN prefixes after maximum aggregation: 80768
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 160775
Unique aggregates announced from the ARIN address blocks: 74685
ARIN Region origin ASes present in the Internet Routing Table: 15817
ARIN Prefixes per ASN: 10.16
ARIN Region origin ASes announcing only one prefix: 6003
ARIN Region transit ASes present in the Internet Routing Table: 1651
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: 19
Number of ARIN addresses announced to Internet: 1067981120
Equivalent to 63 /8s, 168 /16s and 25 /24s
Percentage of available ARIN address space announced: 56.5
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, 62464-63487, 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: 118384
Total RIPE prefixes after maximum aggregation: 60395
RIPE Deaggregation factor: 1.96
Prefixes being announced from the RIPE address blocks: 122184
Unique aggregates announced from the RIPE address blocks: 78455
RIPE Region origin ASes present in the Internet Routing Table: 17330
RIPE Prefixes per ASN: 7.05
RIPE Region origin ASes announcing only one prefix: 8208
RIPE Region transit ASes present in the Internet Routing Table: 2812
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2381
Number of RIPE addresses announced to Internet: 656776996
Equivalent to 39 /8s, 37 /16s and 159 /24s
Percentage of available RIPE address space announced: 95.5
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: 49809
Total LACNIC prefixes after maximum aggregation: 9570
LACNIC Deaggregation factor: 5.20
Prefixes being announced from the LACNIC address blocks: 54393
Unique aggregates announced from the LACNIC address blocks: 25582
LACNIC Region origin ASes present in the Internet Routing Table: 1992
LACNIC Prefixes per ASN: 27.31
LACNIC Region origin ASes announcing only one prefix: 575
LACNIC Region transit ASes present in the Internet Routing Table: 368
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 797
Number of LACNIC addresses announced to Internet: 134582824
Equivalent to 8 /8s, 5 /16s and 146 /24s
Percentage of available LACNIC address space announced: 80.2
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 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: 11633
Total AfriNIC prefixes after maximum aggregation: 2534
AfriNIC Deaggregation factor: 4.59
Prefixes being announced from the AfriNIC address blocks: 12238
Unique aggregates announced from the AfriNIC address blocks: 3950
AfriNIC Region origin ASes present in the Internet Routing Table: 645
AfriNIC Prefixes per ASN: 18.97
AfriNIC Region origin ASes announcing only one prefix: 184
AfriNIC Region transit ASes present in the Internet Routing Table: 129
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 46602752
Equivalent to 2 /8s, 199 /16s and 26 /24s
Percentage of available AfriNIC address space announced: 46.3
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 2922 11561 917 Korea Telecom (KIX)
17974 2649 871 92 PT TELEKOMUNIKASI INDONESIA
7545 2053 320 111 TPG Internet Pty Ltd
4755 1779 393 197 TATA Communications formerly
9829 1537 1221 45 BSNL National Internet Backbo
9583 1224 92 504 Sify Limited
9498 1175 309 70 BHARTI Airtel Ltd.
4808 1155 2127 333 CNCGROUP IP network: China169
7552 1139 1080 13 Vietel Corporation
24560 1088 394 164 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 2980 3689 63 bellsouth.net, inc.
18566 2065 382 184 Covad Communications
1785 2006 679 125 PaeTec Communications, Inc.
22773 2004 2927 123 Cox Communications, Inc.
20115 1673 1624 620 Charter Communications
4323 1622 1106 408 Time Warner Telecom
701 1522 11104 799 UUNET Technologies, Inc.
30036 1377 310 652 Mediacom Communications Corp
7018 1320 11037 834 AT&T WorldNet Services
11492 1221 218 363 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 1659 544 16 Corbina telecom
34984 1299 244 221 BILISIM TELEKOM
2118 1159 97 13 EUnet/RELCOM Autonomous Syste
31148 978 43 17 FreeNet ISP
20940 975 348 751 Akamai Technologies European
6830 871 2371 429 UPC Distribution Services
13188 843 99 70 Educational Network
8551 772 370 45 Bezeq International
12479 681 797 53 Uni2 Autonomous System
9198 570 343 21 Kazakhtelecom Data Network Ad
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
28573 3039 1595 110 NET Servicos de Comunicao S.A
10620 2654 422 231 TVCABLE BOGOTA
7303 1730 1157 220 Telecom Argentina Stet-France
18881 1286 844 20 Global Village Telecom
8151 1278 2760 394 UniNet S.A. de C.V.
27947 837 94 91 Telconet S.A
6503 817 434 63 AVANTEL, S.A.
11830 749 364 15 Instituto Costarricense de El
3816 722 302 83 Empresa Nacional de Telecomun
7738 698 1370 35 Telecomunicacoes da Bahia 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
36998 1861 112 5 MOBITEL
24863 872 274 30 LINKdotNET AS number
6713 542 617 25 Itissalat Al-MAGHRIB
8452 435 956 9 TEDATA
24835 291 80 8 RAYA Telecom - Egypt
3741 258 921 217 The Internet Solution
15706 221 32 6 Sudatel Internet Exchange Aut
29571 220 17 12 Ci Telecom Autonomous system
36992 215 527 23 Etisalat MISR
12258 193 28 71 Vodacom Internet Company
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
28573 3039 1595 110 NET Servicos de Comunicao S.A
6389 2980 3689 63 bellsouth.net, inc.
4766 2922 11561 917 Korea Telecom (KIX)
10620 2654 422 231 TVCABLE BOGOTA
17974 2649 871 92 PT TELEKOMUNIKASI INDONESIA
18566 2065 382 184 Covad Communications
7545 2053 320 111 TPG Internet Pty Ltd
1785 2006 679 125 PaeTec Communications, Inc.
22773 2004 2927 123 Cox Communications, Inc.
36998 1861 112 5 MOBITEL
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 2980 2917 bellsouth.net, inc.
17974 2649 2557 PT TELEKOMUNIKASI INDONESIA
10620 2654 2423 TVCABLE BOGOTA
4766 2922 2005 Korea Telecom (KIX)
7545 2053 1942 TPG Internet Pty Ltd
18566 2065 1881 Covad Communications
1785 2006 1881 PaeTec Communications, Inc.
22773 2004 1881 Cox Communications, Inc.
36998 1861 1856 MOBITEL
8402 1659 1643 Corbina telecom
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
30621 UNALLOCATED 12.151.74.0/23 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
100.100.0.0/24 4847 China Networks Inter-Exchange
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
62.182.96.0/23 15830 TELECITY London
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.
64.185.228.0/24 27431 JTL Networks Inc.
64.185.229.0/24 27431 JTL Networks Inc.
64.185.230.0/24 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 /8:16 /9:11 /10:30 /11:92 /12:249
/13:480 /14:907 /15:1605 /16:12732 /17:6646 /18:11033
/19:22531 /20:32233 /21:34772 /22:48835 /23:42725 /24:244185
/25:1299 /26:1649 /27:839 /28:44 /29:75 /30:18
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2016 2065 Covad Communications
36998 1826 1861 MOBITEL
6389 1714 2980 bellsouth.net, inc.
8402 1360 1659 Corbina telecom
22773 1304 2004 Cox Communications, Inc.
30036 1239 1377 Mediacom Communications Corp
11492 1182 1221 Cable One
1785 1079 2006 PaeTec Communications, Inc.
6983 1021 1149 ITC^Deltacom
10620 986 2654 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:801 2:752 3:3 4:19 5:913 6:17
8:597 12:1904 13:2 14:870 15:11 16:3
17:10 18:19 20:17 23:302 24:1772 27:1538
31:1347 32:45 33:2 34:5 36:67 37:1803
38:892 39:2 40:176 41:3281 42:258 44:7
46:1964 47:2 49:658 50:844 52:12 54:37
55:7 57:26 58:1171 59:638 60:332 61:1495
62:1178 63:2007 64:4339 65:2157 66:4201 67:2042
68:1091 69:3301 70:798 71:488 72:1919 74:2513
75:324 76:303 77:1133 78:1047 79:613 80:1290
81:1018 82:650 83:585 84:568 85:1220 86:465
87:1031 88:535 89:1807 90:152 91:5530 92:618
93:1655 94:1975 95:1610 96:591 97:346 98:1027
99:43 100:29 101:595 103:3118 105:524 106:139
107:208 108:520 109:1857 110:943 111:1070 112:568
113:814 114:700 115:1097 116:956 117:795 118:1140
119:1298 120:361 121:848 122:1808 123:1243 124:1369
125:1399 128:638 129:221 130:310 131:667 132:348
133:160 134:274 135:72 136:259 137:241 138:344
139:189 140:201 141:320 142:532 143:386 144:532
145:93 146:534 147:414 148:675 149:351 150:155
151:582 152:413 153:191 154:29 155:416 156:274
157:402 158:276 159:743 160:349 161:456 162:552
163:223 164:582 165:529 166:255 167:601 168:1026
169:126 170:1071 171:188 172:23 173:1588 174:554
175:492 176:1165 177:2129 178:1908 179:83 180:1512
181:607 182:1228 183:420 184:653 185:733 186:2364
187:1389 188:1852 189:1273 190:6870 192:6873 193:5621
194:4718 195:3597 196:1330 197:998 198:4583 199:5382
200:5994 201:2430 202:8843 203:8894 204:4524 205:2595
206:2831 207:2899 208:4002 209:3597 210:2939 211:1531
212:2247 213:2042 214:913 215:100 216:5263 217:1644
218:619 219:331 220:1278 221:551 222:321 223:462
End of report
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