Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 16 18:33:48 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 17 Aug, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 462841
Prefixes after maximum aggregation: 187161
Deaggregation factor: 2.47
Unique aggregates announced to Internet: 229257
Total ASes present in the Internet Routing Table: 44722
Prefixes per ASN: 10.35
Origin-only ASes present in the Internet Routing Table: 34987
Origin ASes announcing only one prefix: 16208
Transit ASes present in the Internet Routing Table: 5885
Transit-only ASes present in the Internet Routing Table: 156
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 29
Max AS path prepend of ASN ( 19037) 22
Prefixes from unregistered ASNs in the Routing Table: 4596
Unregistered ASNs in the Routing Table: 1584
Number of 32-bit ASNs allocated by the RIRs: 4955
Number of 32-bit ASNs visible in the Routing Table: 3850
Prefixes from 32-bit ASNs in the Routing Table: 11664
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 304
Number of addresses announced to Internet: 2635027852
Equivalent to 157 /8s, 15 /16s and 85 /24s
Percentage of available address space announced: 71.2
Percentage of allocated address space announced: 71.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.9
Total number of prefixes smaller than registry allocations: 162142
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 110903
Total APNIC prefixes after maximum aggregation: 33605
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 112709
Unique aggregates announced from the APNIC address blocks: 46196
APNIC Region origin ASes present in the Internet Routing Table: 4867
APNIC Prefixes per ASN: 23.16
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 824
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: 638
Number of APNIC addresses announced to Internet: 725990208
Equivalent to 43 /8s, 69 /16s and 187 /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: 160372
Total ARIN prefixes after maximum aggregation: 80867
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 160922
Unique aggregates announced from the ARIN address blocks: 74720
ARIN Region origin ASes present in the Internet Routing Table: 15828
ARIN Prefixes per ASN: 10.17
ARIN Region origin ASes announcing only one prefix: 5998
ARIN Region transit ASes present in the Internet Routing Table: 1660
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: 1070350848
Equivalent to 63 /8s, 204 /16s and 66 /24s
Percentage of available ARIN address space announced: 56.6
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: 117912
Total RIPE prefixes after maximum aggregation: 60555
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 121724
Unique aggregates announced from the RIPE address blocks: 78516
RIPE Region origin ASes present in the Internet Routing Table: 17350
RIPE Prefixes per ASN: 7.02
RIPE Region origin ASes announcing only one prefix: 8219
RIPE Region transit ASes present in the Internet Routing Table: 2810
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2386
Number of RIPE addresses announced to Internet: 656724772
Equivalent to 39 /8s, 36 /16s and 211 /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: 50343
Total LACNIC prefixes after maximum aggregation: 9566
LACNIC Deaggregation factor: 5.26
Prefixes being announced from the LACNIC address blocks: 55020
Unique aggregates announced from the LACNIC address blocks: 25639
LACNIC Region origin ASes present in the Internet Routing Table: 2001
LACNIC Prefixes per ASN: 27.50
LACNIC Region origin ASes announcing only one prefix: 578
LACNIC Region transit ASes present in the Internet Routing Table: 369
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: 801
Number of LACNIC addresses announced to Internet: 135157288
Equivalent to 8 /8s, 14 /16s and 86 /24s
Percentage of available LACNIC address space announced: 80.6
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: 11560
Total AfriNIC prefixes after maximum aggregation: 2528
AfriNIC Deaggregation factor: 4.57
Prefixes being announced from the AfriNIC address blocks: 12162
Unique aggregates announced from the AfriNIC address blocks: 3903
AfriNIC Region origin ASes present in the Internet Routing Table: 643
AfriNIC Prefixes per ASN: 18.91
AfriNIC Region origin ASes announcing only one prefix: 190
AfriNIC Region transit ASes present in the Internet Routing Table: 131
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 46473728
Equivalent to 2 /8s, 197 /16s and 34 /24s
Percentage of available AfriNIC address space announced: 46.2
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 2922 11561 918 Korea Telecom (KIX)
17974 2655 871 92 PT TELEKOMUNIKASI INDONESIA
7545 2056 321 112 TPG Internet Pty Ltd
4755 1780 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 1153 2127 332 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 2978 3689 62 bellsouth.net, inc.
18566 2065 382 184 Covad Communications
1785 2006 679 125 PaeTec Communications, Inc.
22773 2006 2927 123 Cox Communications, Inc.
20115 1675 1646 621 Charter Communications
4323 1618 1105 408 Time Warner Telecom
701 1521 11103 797 UUNET Technologies, Inc.
30036 1365 305 639 Mediacom Communications Corp
7018 1317 11293 832 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 1562 544 16 Corbina telecom
34984 1303 244 221 BILISIM TELEKOM
31148 978 43 17 FreeNet ISP
20940 977 349 748 Akamai Technologies European
2118 962 97 13 EUnet/RELCOM Autonomous Syste
6830 898 2371 429 UPC Distribution Services
13188 843 99 70 Educational Network
8551 768 370 45 Bezeq International
12479 687 797 53 Uni2 Autonomous System
58113 541 55 339 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
28573 3129 1655 108 NET Servicos de Comunicao S.A
10620 2668 424 223 TVCABLE BOGOTA
7303 1730 1157 220 Telecom Argentina Stet-France
18881 1359 844 20 Global Village Telecom
8151 1283 2764 392 UniNet S.A. de C.V.
11830 945 364 15 Instituto Costarricense de El
27947 837 94 91 Telconet S.A
6503 787 434 63 AVANTEL, S.A.
6147 738 374 25 Telefonica Del Peru
3816 721 302 83 Empresa Nacional de Telecomun
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 874 274 30 LINKdotNET AS number
6713 543 633 26 Itissalat Al-MAGHRIB
8452 438 956 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 220 501 29 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 3129 1655 108 NET Servicos de Comunicao S.A
6389 2978 3689 62 bellsouth.net, inc.
4766 2922 11561 918 Korea Telecom (KIX)
10620 2668 424 223 TVCABLE BOGOTA
17974 2655 871 92 PT TELEKOMUNIKASI INDONESIA
18566 2065 382 184 Covad Communications
7545 2056 321 112 TPG Internet Pty Ltd
1785 2006 679 125 PaeTec Communications, Inc.
22773 2006 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 2978 2916 bellsouth.net, inc.
17974 2655 2563 PT TELEKOMUNIKASI INDONESIA
10620 2668 2445 TVCABLE BOGOTA
4766 2922 2004 Korea Telecom (KIX)
7545 2056 1944 TPG Internet Pty Ltd
22773 2006 1883 Cox Communications, Inc.
18566 2065 1881 Covad Communications
1785 2006 1881 PaeTec Communications, Inc.
36998 1861 1856 MOBITEL
4755 1780 1583 TATA Communications formerly
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
23.92.16.0/21 8001 Net Access Corporation
23.92.24.0/22 6939 Hurricane Electric
23.92.64.0/24 54540 Incero LLC
23.92.65.0/24 54540 Incero LLC
23.92.66.0/24 54540 Incero LLC
23.92.67.0/24 54540 Incero LLC
23.92.68.0/24 54540 Incero LLC
23.92.69.0/24 54540 Incero LLC
23.92.70.0/24 54540 Incero LLC
23.92.71.0/24 54540 Incero LLC
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 /11:93 /12:250
/13:479 /14:905 /15:1608 /16:12739 /17:6632 /18:11022
/19:22555 /20:32285 /21:34854 /22:48885 /23:42800 /24:244455
/25:1044 /26:1426 /27:597 /28:43 /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 1713 2978 bellsouth.net, inc.
22773 1304 2006 Cox Communications, Inc.
8402 1271 1562 Corbina telecom
30036 1229 1365 Mediacom Communications Corp
11492 1182 1221 Cable One
1785 1079 2006 PaeTec Communications, Inc.
6983 1024 1152 ITC^Deltacom
10620 990 2668 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:811 2:706 3:3 4:19 5:908 6:17
8:599 12:1897 13:2 14:868 15:11 16:3
17:10 18:19 20:17 23:334 24:1749 27:1540
31:1274 32:45 33:2 34:5 36:70 37:1818
38:898 39:2 40:180 41:3241 42:259 44:9
46:1854 47:3 49:652 50:842 52:12 54:37
55:7 57:26 58:1174 59:644 60:330 61:1494
62:1181 63:1985 64:4348 65:2155 66:4204 67:2016
68:1090 69:3315 70:863 71:492 72:1917 74:2528
75:327 76:305 77:1138 78:1007 79:615 80:1307
81:1018 82:649 83:587 84:569 85:1214 86:471
87:1042 88:537 89:1811 90:158 91:5568 92:625
93:1656 94:2015 95:1556 96:587 97:346 98:1029
99:42 100:29 101:598 103:3147 105:519 106:139
107:210 108:495 109:1865 110:945 111:1098 112:570
113:802 114:729 115:1102 116:956 117:800 118:1146
119:1288 120:363 121:850 122:1807 123:1243 124:1369
125:1411 128:635 129:223 130:302 131:667 132:348
133:160 134:277 135:72 136:259 137:242 138:344
139:189 140:207 141:321 142:532 143:393 144:498
145:93 146:531 147:478 148:678 149:354 150:154
151:589 152:413 153:193 154:30 155:415 156:275
157:405 158:276 159:745 160:349 161:446 162:580
163:222 164:548 165:555 166:255 167:602 168:1033
169:126 170:1071 171:188 172:25 173:1581 174:567
175:491 176:1173 177:2156 178:1899 179:91 180:1516
181:640 182:1225 183:432 184:655 185:757 186:2476
187:1401 188:1796 189:1279 190:7004 192:6867 193:5546
194:4601 195:3595 196:1327 197:985 198:4590 199:5384
200:5981 201:2602 202:8842 203:8870 204:4519 205:2604
206:2833 207:2893 208:3992 209:3589 210:2938 211:1553
212:2253 213:2019 214:928 215:100 216:5254 217:1651
218:618 219:323 220:1277 221:552 222:322 223:465
End of report
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