[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 7 18:13:45 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 08 Aug, 2015
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 554366
Prefixes after maximum aggregation (per Origin AS): 209671
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 270945
Total ASes present in the Internet Routing Table: 51105
Prefixes per ASN: 10.85
Origin-only ASes present in the Internet Routing Table: 36680
Origin ASes announcing only one prefix: 16160
Transit ASes present in the Internet Routing Table: 6359
Transit-only ASes present in the Internet Routing Table: 173
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 45
Max AS path prepend of ASN ( 55644) 41
Prefixes from unregistered ASNs in the Routing Table: 1200
Unregistered ASNs in the Routing Table: 434
Number of 32-bit ASNs allocated by the RIRs: 10499
Number of 32-bit ASNs visible in the Routing Table: 8066
Prefixes from 32-bit ASNs in the Routing Table: 29903
Number of bogon 32-bit ASNs visible in the Routing Table: 16
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 417
Number of addresses announced to Internet: 2791482880
Equivalent to 166 /8s, 98 /16s and 166 /24s
Percentage of available address space announced: 75.4
Percentage of allocated address space announced: 75.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 97.6
Total number of prefixes smaller than registry allocations: 185457
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 137012
Total APNIC prefixes after maximum aggregation: 39879
APNIC Deaggregation factor: 3.44
Prefixes being announced from the APNIC address blocks: 144078
Unique aggregates announced from the APNIC address blocks: 58813
APNIC Region origin ASes present in the Internet Routing Table: 5080
APNIC Prefixes per ASN: 28.36
APNIC Region origin ASes announcing only one prefix: 1192
APNIC Region transit ASes present in the Internet Routing Table: 883
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 45
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1583
Number of APNIC addresses announced to Internet: 750929984
Equivalent to 44 /8s, 194 /16s and 72 /24s
Percentage of available APNIC address space announced: 87.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 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: 179763
Total ARIN prefixes after maximum aggregation: 88015
ARIN Deaggregation factor: 2.04
Prefixes being announced from the ARIN address blocks: 182518
Unique aggregates announced from the ARIN address blocks: 85471
ARIN Region origin ASes present in the Internet Routing Table: 16589
ARIN Prefixes per ASN: 11.00
ARIN Region origin ASes announcing only one prefix: 6080
ARIN Region transit ASes present in the Internet Routing Table: 1737
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 592
Number of ARIN addresses announced to Internet: 1103491328
Equivalent to 65 /8s, 197 /16s and 241 /24s
Percentage of available ARIN address space announced: 58.4
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, 64198-64296, 393216-395164
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: 134392
Total RIPE prefixes after maximum aggregation: 67097
RIPE Deaggregation factor: 2.00
Prefixes being announced from the RIPE address blocks: 141073
Unique aggregates announced from the RIPE address blocks: 87683
RIPE Region origin ASes present in the Internet Routing Table: 17959
RIPE Prefixes per ASN: 7.86
RIPE Region origin ASes announcing only one prefix: 8066
RIPE Region transit ASes present in the Internet Routing Table: 2981
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 3919
Number of RIPE addresses announced to Internet: 698956928
Equivalent to 41 /8s, 169 /16s and 60 /24s
Percentage of available RIPE address space announced: 101.6
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, 196608-204287
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: 60822
Total LACNIC prefixes after maximum aggregation: 11540
LACNIC Deaggregation factor: 5.27
Prefixes being announced from the LACNIC address blocks: 72105
Unique aggregates announced from the LACNIC address blocks: 33337
LACNIC Region origin ASes present in the Internet Routing Table: 2463
LACNIC Prefixes per ASN: 29.28
LACNIC Region origin ASes announcing only one prefix: 622
LACNIC Region transit ASes present in the Internet Routing Table: 515
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 28
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1833
Number of LACNIC addresses announced to Internet: 168796736
Equivalent to 10 /8s, 15 /16s and 162 /24s
Percentage of available LACNIC address space announced: 100.6
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: 12284
Total AfriNIC prefixes after maximum aggregation: 3091
AfriNIC Deaggregation factor: 3.97
Prefixes being announced from the AfriNIC address blocks: 14175
Unique aggregates announced from the AfriNIC address blocks: 5256
AfriNIC Region origin ASes present in the Internet Routing Table: 742
AfriNIC Prefixes per ASN: 19.10
AfriNIC Region origin ASes announcing only one prefix: 200
AfriNIC Region transit ASes present in the Internet Routing Table: 167
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 139
Number of AfriNIC addresses announced to Internet: 68660224
Equivalent to 4 /8s, 23 /16s and 172 /24s
Percentage of available AfriNIC address space announced: 68.2
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 2991 11300 979 Korea Telecom
17974 2705 904 80 PT Telekomunikasi Indonesia
7545 2619 339 134 TPG Telecom Limited
4755 2028 426 225 TATA Communications formerly
4538 1949 4190 71 China Education and Research
9829 1852 1369 187 National Internet Backbone
9808 1587 8717 29 Guangdong Mobile Communicatio
9583 1517 119 570 Sify Limited
4808 1483 2248 469 CNCGROUP IP network China169
9498 1370 335 105 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 3180 2961 138 Cox Communications Inc.
6389 2734 3688 51 BellSouth.net Inc.
3356 2557 10710 511 Level 3 Communications, Inc.
18566 2067 381 208 MegaPath Corporation
20115 1873 1847 406 Charter Communications
6983 1753 851 245 EarthLink, Inc.
4323 1596 1006 414 tw telecom holdings, inc.
30036 1552 313 480 Mediacom Communications Corp
701 1406 11376 684 MCI Communications Services,
22561 1374 415 256 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
20940 2062 814 1492 Akamai International B.V.
34984 2031 305 379 TELLCOM ILETISIM HIZMETLERI A
6849 1209 355 21 JSC "Ukrtelecom"
8551 1099 376 52 Bezeq International-Ltd
13188 1068 97 77 TOV "Bank-Inform"
31148 1054 46 24 Freenet Ltd.
12479 976 933 76 France Telecom Espana SA
8402 936 544 15 OJSC "Vimpelcom"
6830 921 2696 471 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 3338 538 145 Telmex Colombia S.A.
28573 2300 2173 111 NET Serviços de Comunicação S
8151 1683 3261 486 Uninet S.A. de C.V.
7303 1601 974 243 Telecom Argentina S.A.
6147 1388 374 30 Telefonica del Peru S.A.A.
6503 1247 421 55 Axtel, S.A.B. de C.V.
26615 1105 2325 35 Tim Celular S.A.
7738 995 1882 41 Telemar Norte Leste S.A.
3816 947 430 162 COLOMBIA TELECOMUNICACIONES S
11830 924 364 15 Instituto Costarricense de El
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
24863 886 280 26 Link Egypt (Link.NET)
8452 864 1470 14 TE-AS
36903 512 258 99 Office National des Postes et
36992 442 1229 32 ETISALAT MISR
37492 312 175 71 Orange Tunisie
24835 308 146 12 Vodafone Data
3741 252 857 208 Internet Solutions
29571 249 21 13 Cote d'Ivoire Telecom
37054 189 20 7 Data Telecom Service
36947 182 807 13 Telecom Algeria
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 3338 538 145 Telmex Colombia S.A.
22773 3180 2961 138 Cox Communications Inc.
4766 2991 11300 979 Korea Telecom
6389 2734 3688 51 BellSouth.net Inc.
17974 2705 904 80 PT Telekomunikasi Indonesia
7545 2619 339 134 TPG Telecom Limited
3356 2557 10710 511 Level 3 Communications, Inc.
39891 2472 128 6 SaudiNet, Saudi Telecom Compa
28573 2300 2173 111 NET Serviços de Comunicação S
18566 2067 381 208 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 3180 3042 Cox Communications Inc.
6389 2734 2683 BellSouth.net Inc.
17974 2705 2625 PT Telekomunikasi Indonesia
7545 2619 2485 TPG Telecom Limited
39891 2472 2466 SaudiNet, Saudi Telecom Compa
28573 2300 2189 NET Serviços de Comunicação S
3356 2557 2046 Level 3 Communications, Inc.
4766 2991 2012 Korea Telecom
4538 1949 1878 China Education and Research
18566 2067 1859 MegaPath Corporation
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
47092 UNALLOCATED 8.8.204.0/24 16410 The Reynolds and Rey
53506 UNALLOCATED 8.17.102.0/23 2828 XO Communications
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
55060 UNALLOCATED 8.35.9.0/24 3356 Level 3 Communicatio
27205 UNALLOCATED 8.38.16.0/21 6461 Abovenet Communicati
15347 UNALLOCATED 8.224.147.0/24 12064 Cox Communications I
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
100.100.1.0/24 9730 Bharti Telesonic Ltd
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.56.0/22 23456 32bit Transition AS
23.226.112.0/20 62788 >>UNKNOWN<<
27.54.116.0/22 23456 32bit Transition AS
27.96.88.0/22 23456 32bit Transition AS
27.100.7.0/24 56096 >>UNKNOWN<<
27.100.24.0/22 23456 32bit Transition AS
27.109.124.0/22 23456 32bit Transition AS
27.111.72.0/22 23456 32bit Transition AS
27.112.120.0/22 23456 32bit Transition AS
27.116.40.0/22 23456 32bit Transition AS
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 /10:36 /11:96 /12:263
/13:506 /14:1001 /15:1729 /16:12890 /17:7257 /18:12358
/19:25551 /20:36046 /21:38803 /22:60636 /23:53091 /24:301015
/25:1135 /26:1157 /27:712 /28:14 /29:14 /30:9
/31:0 /32:17
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
39891 2432 2472 SaudiNet, Saudi Telecom Compa
22773 2374 3180 Cox Communications Inc.
18566 2009 2067 MegaPath Corporation
6389 1619 2734 BellSouth.net Inc.
6983 1399 1753 EarthLink, Inc.
30036 1375 1552 Mediacom Communications Corp
34984 1340 2031 TELLCOM ILETISIM HIZMETLERI A
10620 1208 3338 Telmex Colombia S.A.
11492 1111 1195 CABLE ONE, INC.
22561 1047 1374 CenturyTel Internet Holdings,
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1537 2:698 4:96 5:1857 6:25 8:1383
12:1808 13:14 14:1333 15:17 16:2 17:41
18:22 20:48 23:1262 24:1758 27:1996 31:1573
32:37 33:2 34:4 35:3 36:158 37:2018
38:1040 39:14 40:69 41:2800 42:302 43:1401
44:30 45:922 46:2346 47:51 49:928 50:784
52:15 54:86 55:3 56:6 57:43 58:1350
59:716 60:481 61:1754 62:1380 63:1905 64:4433
65:2253 66:4030 67:2063 68:1065 69:3242 70:1026
71:449 72:1966 74:2588 75:355 76:385 77:1305
78:1108 79:811 80:1360 81:1317 82:855 83:719
84:794 85:1364 86:447 87:1040 88:531 89:1935
90:148 91:5942 92:844 93:2279 94:2060 95:2191
96:413 97:347 98:996 99:55 100:75 101:850
103:7964 104:2018 105:69 106:341 107:1044 108:625
109:2120 110:1157 111:1465 112:821 113:1105 114:844
115:1283 116:1457 117:1073 118:1883 119:1463 120:451
121:1142 122:2158 123:1848 124:1520 125:1615 128:643
129:392 130:419 131:1256 132:526 133:171 134:409
135:101 136:334 137:328 138:1073 139:149 140:241
141:495 142:663 143:537 144:545 145:126 146:798
147:563 148:1237 149:427 150:565 151:674 152:522
153:256 154:470 155:880 156:427 157:421 158:358
159:1030 160:406 161:665 162:2002 163:444 164:700
165:707 166:299 167:853 168:1241 169:190 170:1470
171:253 172:284 173:1530 174:720 175:700 176:1432
177:3851 178:2161 179:960 180:1940 181:1645 182:1810
183:629 184:761 185:4022 186:2914 187:1824 188:2076
189:1568 190:7758 191:1123 192:8575 193:5648 194:4211
195:3643 196:2015 197:1034 198:5563 199:5500 200:6654
201:3305 202:9512 203:9161 204:4681 205:2850 206:3014
207:2970 208:3985 209:3909 210:3582 211:1921 212:2551
213:2244 214:836 215:73 216:5733 217:1843 218:733
219:469 220:1505 221:815 222:473 223:808
End of report
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