Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 3 18:14:57 UTC 2015
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,
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 04 Apr, 2015
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 539115
Prefixes after maximum aggregation (per Origin AS): 205855
Deaggregation factor: 2.62
Unique aggregates announced (without unneeded subnets): 262872
Total ASes present in the Internet Routing Table: 49858
Prefixes per ASN: 10.81
Origin-only ASes present in the Internet Routing Table: 36536
Origin ASes announcing only one prefix: 16266
Transit ASes present in the Internet Routing Table: 6290
Transit-only ASes present in the Internet Routing Table: 173
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 59
Max AS path prepend of ASN ( 55644) 56
Prefixes from unregistered ASNs in the Routing Table: 1130
Unregistered ASNs in the Routing Table: 410
Number of 32-bit ASNs allocated by the RIRs: 9061
Number of 32-bit ASNs visible in the Routing Table: 7032
Prefixes from 32-bit ASNs in the Routing Table: 25439
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 372
Number of addresses announced to Internet: 2740392868
Equivalent to 163 /8s, 87 /16s and 19 /24s
Percentage of available address space announced: 74.0
Percentage of allocated address space announced: 74.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 97.3
Total number of prefixes smaller than registry allocations: 181677
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 133140
Total APNIC prefixes after maximum aggregation: 38684
APNIC Deaggregation factor: 3.44
Prefixes being announced from the APNIC address blocks: 138839
Unique aggregates announced from the APNIC address blocks: 56616
APNIC Region origin ASes present in the Internet Routing Table: 5036
APNIC Prefixes per ASN: 27.57
APNIC Region origin ASes announcing only one prefix: 1214
APNIC Region transit ASes present in the Internet Routing Table: 872
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 59
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1365
Number of APNIC addresses announced to Internet: 747782656
Equivalent to 44 /8s, 146 /16s and 66 /24s
Percentage of available APNIC address space announced: 87.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 131072-135580
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: 177915
Total ARIN prefixes after maximum aggregation: 87703
ARIN Deaggregation factor: 2.03
Prefixes being announced from the ARIN address blocks: 180188
Unique aggregates announced from the ARIN address blocks: 84227
ARIN Region origin ASes present in the Internet Routing Table: 16510
ARIN Prefixes per ASN: 10.91
ARIN Region origin ASes announcing only one prefix: 6072
ARIN Region transit ASes present in the Internet Routing Table: 1716
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 386
Number of ARIN addresses announced to Internet: 1064986400
Equivalent to 63 /8s, 122 /16s and 103 /24s
Percentage of available ARIN address space announced: 56.3
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: 130559
Total RIPE prefixes after maximum aggregation: 65255
RIPE Deaggregation factor: 2.00
Prefixes being announced from the RIPE address blocks: 136997
Unique aggregates announced from the RIPE address blocks: 84491
RIPE Region origin ASes present in the Internet Routing Table: 17929
RIPE Prefixes per ASN: 7.64
RIPE Region origin ASes announcing only one prefix: 8164
RIPE Region transit ASes present in the Internet Routing Table: 2969
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 3568
Number of RIPE addresses announced to Internet: 694387588
Equivalent to 41 /8s, 99 /16s and 131 /24s
Percentage of available RIPE address space announced: 100.9
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, 61952-62463, 196608-202239
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: 59226
Total LACNIC prefixes after maximum aggregation: 11187
LACNIC Deaggregation factor: 5.29
Prefixes being announced from the LACNIC address blocks: 68995
Unique aggregates announced from the LACNIC address blocks: 32144
LACNIC Region origin ASes present in the Internet Routing Table: 2423
LACNIC Prefixes per ASN: 28.48
LACNIC Region origin ASes announcing only one prefix: 623
LACNIC Region transit ASes present in the Internet Routing Table: 495
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1609
Number of LACNIC addresses announced to Internet: 168041728
Equivalent to 10 /8s, 4 /16s and 29 /24s
Percentage of available LACNIC address space announced: 100.2
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-265628 + 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: 12673
Total AfriNIC prefixes after maximum aggregation: 2982
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 13724
Unique aggregates announced from the AfriNIC address blocks: 5057
AfriNIC Region origin ASes present in the Internet Routing Table: 725
AfriNIC Prefixes per ASN: 18.93
AfriNIC Region origin ASes announcing only one prefix: 193
AfriNIC Region transit ASes present in the Internet Routing Table: 159
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 104
Number of AfriNIC addresses announced to Internet: 64489472
Equivalent to 3 /8s, 216 /16s and 8 /24s
Percentage of available AfriNIC address space announced: 64.1
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 2877 11556 919 Korea Telecom
17974 2794 904 78 PT Telekomunikasi Indonesia
7545 2546 336 128 TPG Telecom Limited
4755 2003 422 212 TATA Communications formerly
4538 1760 4190 71 China Education and Research
9829 1678 1324 47 National Internet Backbone
9808 1555 8717 28 Guangdong Mobile Communicatio
4808 1452 2259 447 CNCGROUP IP network China169
9583 1405 116 574 Sify Limited
9498 1313 334 94 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
22773 3018 2956 142 Cox Communications Inc.
6389 2880 3688 51 BellSouth.net Inc.
3356 2541 10683 475 Level 3 Communications, Inc.
18566 2041 379 183 MegaPath Corporation
20115 1851 1832 431 Charter Communications
6983 1752 866 245 EarthLink, Inc.
4323 1618 1020 407 tw telecom holdings, inc.
30036 1508 308 527 Mediacom Communications Corp
701 1391 11270 677 MCI Communications Services,
22561 1338 412 242 CenturyTel Internet Holdings,
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
39891 2472 128 6 SaudiNet, Saudi Telecom Compa
34984 1980 303 357 TELLCOM ILETISIM HIZMETLERI A
20940 1689 648 1248 Akamai International B.V.
8402 1214 544 15 OJSC "Vimpelcom"
6849 1212 356 24 JSC "Ukrtelecom"
31148 1046 45 21 Freenet Ltd.
13188 1024 96 72 TOV "Bank-Inform"
12479 898 801 79 France Telecom Espana SA
8551 885 373 48 Bezeq International-Ltd
6830 852 2341 452 Liberty Global Operations B.V
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 3156 514 222 Telmex Colombia S.A.
28573 2358 2173 118 NET Serviços de Comunicação S
7303 1704 1102 241 Telecom Argentina S.A.
6147 1596 374 30 Telefonica del Peru S.A.A.
8151 1559 3159 449 Uninet S.A. de C.V.
6503 1209 421 57 Axtel, S.A.B. de C.V.
7738 999 1882 41 Telemar Norte Leste S.A.
26615 963 2325 35 Tim Celular S.A.
3816 922 418 154 COLOMBIA TELECOMUNICACIONES S
18881 867 1036 22 Global Village Telecom
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 1694 958 13 TE-AS
24863 962 284 27 Link Egypt (Link.NET)
36903 479 241 90 Office National des Postes et
36992 417 1229 32 ETISALAT MISR
37492 318 159 71 Orange Tunisie
24835 300 144 9 Vodafone Data
3741 249 857 208 Internet Solutions
29571 232 21 13 Cote d'Ivoire Telecom
36947 192 807 13 Telecom Algeria
15706 172 32 6 Sudatel (Sudan Telecom Co. Lt
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
10620 3156 514 222 Telmex Colombia S.A.
22773 3018 2956 142 Cox Communications Inc.
6389 2880 3688 51 BellSouth.net Inc.
4766 2877 11556 919 Korea Telecom
17974 2794 904 78 PT Telekomunikasi Indonesia
7545 2546 336 128 TPG Telecom Limited
3356 2541 10683 475 Level 3 Communications, Inc.
39891 2472 128 6 SaudiNet, Saudi Telecom Compa
28573 2358 2173 118 NET Serviços de Comunicação S
18566 2041 379 183 MegaPath Corporation
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
22773 3018 2876 Cox Communications Inc.
6389 2880 2829 BellSouth.net Inc.
17974 2794 2716 PT Telekomunikasi Indonesia
39891 2472 2466 SaudiNet, Saudi Telecom Compa
7545 2546 2418 TPG Telecom Limited
28573 2358 2240 NET Serviços de Comunicação S
3356 2541 2066 Level 3 Communications, Inc.
4766 2877 1958 Korea Telecom
18566 2041 1858 MegaPath Corporation
4755 2003 1791 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
30662 UNALLOCATED 8.2.129.0/24 3356 Level 3 Communicatio
53506 UNALLOCATED 8.17.102.0/23 3356 Level 3 Communicatio
46467 UNALLOCATED 8.19.192.0/24 46887 Lightower Fiber Netw
18985 UNALLOCATED 8.21.68.0/22 3356 Level 3 Communicatio
46473 UNALLOCATED 8.27.122.0/24 12180 Internap Network Ser
46473 UNALLOCATED 8.27.124.0/24 12180 Internap Network Ser
27205 UNALLOCATED 8.38.16.0/21 6461 Abovenet Communicati
15347 UNALLOCATED 8.224.147.0/24 12064 Cox Communications I
33628 UNALLOCATED 12.0.239.0/24 1239 Sprint
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.100.241.0/24 23456 32bit Transition AS
23.226.112.0/20 62788 >>UNKNOWN<<
27.100.7.0/24 56096 >>UNKNOWN<<
31.217.248.0/21 44902 COVAGE NETWORKS SASU
41.73.1.0/24 37004 >>UNKNOWN<<
41.73.10.0/24 37004 >>UNKNOWN<<
41.73.11.0/24 37004 >>UNKNOWN<<
41.73.12.0/24 37004 >>UNKNOWN<<
41.73.13.0/24 37004 >>UNKNOWN<<
41.73.15.0/24 37004 >>UNKNOWN<<
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 /9:12 /10:34 /11:93 /12:264
/13:510 /14:1001 /15:1717 /16:12950 /17:7205 /18:12232
/19:25319 /20:35828 /21:38593 /22:58523 /23:51163 /24:290671
/25:1111 /26:1167 /27:660 /28:14 /29:11 /30:8
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
39891 2432 2472 SaudiNet, Saudi Telecom Compa
22773 2230 3018 Cox Communications Inc.
18566 1996 2041 MegaPath Corporation
6389 1670 2880 BellSouth.net Inc.
6983 1399 1752 EarthLink, Inc.
30036 1355 1508 Mediacom Communications Corp
34984 1285 1980 TELLCOM ILETISIM HIZMETLERI A
6147 1144 1596 Telefonica del Peru S.A.A.
10620 1116 3156 Telmex Colombia S.A.
11492 1109 1172 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1544 2:666 4:93 5:1751 6:21 8:1415
12:1819 13:9 14:1315 15:17 16:2 17:44
18:21 20:49 23:1192 24:1695 27:1854 31:1513
32:39 33:2 34:5 35:3 36:117 37:1893
38:1012 39:11 40:246 41:2929 42:265 43:1238
44:26 45:342 46:2122 47:37 49:883 50:796
52:12 54:72 55:4 56:8 57:37 58:1222
59:681 60:468 61:1759 62:1336 63:1908 64:4448
65:2257 66:4120 67:2054 68:1077 69:3270 70:959
71:441 72:1959 74:2647 75:322 76:407 77:1489
78:1223 79:798 80:1317 81:1351 82:819 83:685
84:679 85:1369 86:381 87:1074 88:511 89:1807
90:153 91:5984 92:824 93:2174 94:1964 95:2068
96:428 97:348 98:1067 99:47 100:68 101:815
103:7079 104:1481 105:61 106:224 107:913 108:616
109:2019 110:1078 111:1485 112:770 113:1051 114:834
115:1249 116:1366 117:1024 118:1707 119:1436 120:450
121:1037 122:2183 123:1728 124:1505 125:1578 128:567
129:377 130:390 131:1183 132:481 133:172 134:415
135:109 136:300 137:313 138:576 139:164 140:239
141:421 142:669 143:487 144:569 145:108 146:712
147:580 148:1104 149:464 150:562 151:605 152:491
153:240 154:339 155:738 156:406 157:334 158:319
159:969 160:373 161:639 162:1959 163:422 164:663
165:686 166:289 167:803 168:1277 169:161 170:1466
171:240 172:41 173:1548 174:701 175:662 176:1406
177:3797 178:2062 179:879 180:1926 181:1599 182:1748
183:620 184:744 185:3193 186:2622 187:1783 188:2018
189:1584 190:7696 191:909 192:8204 193:5591 194:4107
195:3661 196:1705 197:1076 198:5512 199:5528 200:6575
201:3045 202:9447 203:9108 204:4694 205:2830 206:3083
207:3003 208:3943 209:3966 210:3525 211:1856 212:2451
213:2279 214:854 215:70 216:5581 217:1798 218:676
219:453 220:1436 221:790 222:464 223:670
End of report
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