[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri May 29 18:13:04 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 30 May, 2015
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 546078
Prefixes after maximum aggregation (per Origin AS): 207732
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 266391
Total ASes present in the Internet Routing Table: 50461
Prefixes per ASN: 10.82
Origin-only ASes present in the Internet Routing Table: 36679
Origin ASes announcing only one prefix: 16300
Transit ASes present in the Internet Routing Table: 6313
Transit-only ASes present in the Internet Routing Table: 165
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 41
Max AS path prepend of ASN ( 12486) 32
Prefixes from unregistered ASNs in the Routing Table: 1137
Unregistered ASNs in the Routing Table: 421
Number of 32-bit ASNs allocated by the RIRs: 9645
Number of 32-bit ASNs visible in the Routing Table: 7469
Prefixes from 32-bit ASNs in the Routing Table: 27217
Number of bogon 32-bit ASNs visible in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 352
Number of addresses announced to Internet: 2759984352
Equivalent to 164 /8s, 130 /16s and 4 /24s
Percentage of available address space announced: 74.5
Percentage of allocated address space announced: 74.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 97.4
Total number of prefixes smaller than registry allocations: 182950
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 135191
Total APNIC prefixes after maximum aggregation: 39171
APNIC Deaggregation factor: 3.45
Prefixes being announced from the APNIC address blocks: 141541
Unique aggregates announced from the APNIC address blocks: 57260
APNIC Region origin ASes present in the Internet Routing Table: 5059
APNIC Prefixes per ASN: 27.98
APNIC Region origin ASes announcing only one prefix: 1212
APNIC Region transit ASes present in the Internet Routing Table: 884
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 32
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1459
Number of APNIC addresses announced to Internet: 749217216
Equivalent to 44 /8s, 168 /16s and 37 /24s
Percentage of available APNIC address space announced: 87.6
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: 179304
Total ARIN prefixes after maximum aggregation: 88173
ARIN Deaggregation factor: 2.03
Prefixes being announced from the ARIN address blocks: 181952
Unique aggregates announced from the ARIN address blocks: 84936
ARIN Region origin ASes present in the Internet Routing Table: 16622
ARIN Prefixes per ASN: 10.95
ARIN Region origin ASes announcing only one prefix: 6124
ARIN Region transit ASes present in the Internet Routing Table: 1732
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 460
Number of ARIN addresses announced to Internet: 1081496864
Equivalent to 64 /8s, 118 /16s and 85 /24s
Percentage of available ARIN address space announced: 57.2
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: 132389
Total RIPE prefixes after maximum aggregation: 65992
RIPE Deaggregation factor: 2.01
Prefixes being announced from the RIPE address blocks: 138863
Unique aggregates announced from the RIPE address blocks: 86068
RIPE Region origin ASes present in the Internet Routing Table: 17948
RIPE Prefixes per ASN: 7.74
RIPE Region origin ASes announcing only one prefix: 8141
RIPE Region transit ASes present in the Internet Routing Table: 2958
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 3739
Number of RIPE addresses announced to Internet: 694821120
Equivalent to 41 /8s, 106 /16s and 33 /24s
Percentage of available RIPE address space announced: 101.0
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: 59819
Total LACNIC prefixes after maximum aggregation: 11304
LACNIC Deaggregation factor: 5.29
Prefixes being announced from the LACNIC address blocks: 70075
Unique aggregates announced from the LACNIC address blocks: 32630
LACNIC Region origin ASes present in the Internet Routing Table: 2439
LACNIC Prefixes per ASN: 28.73
LACNIC Region origin ASes announcing only one prefix: 626
LACNIC Region transit ASes present in the Internet Routing Table: 504
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1696
Number of LACNIC addresses announced to Internet: 168456448
Equivalent to 10 /8s, 10 /16s and 113 /24s
Percentage of available LACNIC address space announced: 100.4
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: 11982
Total AfriNIC prefixes after maximum aggregation: 3048
AfriNIC Deaggregation factor: 3.93
Prefixes being announced from the AfriNIC address blocks: 13295
Unique aggregates announced from the AfriNIC address blocks: 5178
AfriNIC Region origin ASes present in the Internet Routing Table: 729
AfriNIC Prefixes per ASN: 18.24
AfriNIC Region origin ASes announcing only one prefix: 197
AfriNIC Region transit ASes present in the Internet Routing Table: 157
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 115
Number of AfriNIC addresses announced to Internet: 65687040
Equivalent to 3 /8s, 234 /16s and 78 /24s
Percentage of available AfriNIC address space announced: 65.3
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 2928 11557 914 Korea Telecom
17974 2689 904 81 PT Telekomunikasi Indonesia
7545 2431 336 131 TPG Telecom Limited
4755 2026 423 219 TATA Communications formerly
4538 1937 4190 72 China Education and Research
9808 1686 8717 28 Guangdong Mobile Communicatio
9829 1669 1332 62 National Internet Backbone
4808 1469 2249 467 CNCGROUP IP network China169
9583 1449 120 588 Sify Limited
9498 1330 335 101 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 3045 2958 141 Cox Communications Inc.
6389 2796 3688 51 BellSouth.net Inc.
3356 2569 10687 495 Level 3 Communications, Inc.
18566 2047 379 189 MegaPath Corporation
20115 1878 1849 423 Charter Communications
6983 1749 866 245 EarthLink, Inc.
4323 1606 1022 410 tw telecom holdings, inc.
30036 1543 314 474 Mediacom Communications Corp
701 1390 11322 679 MCI Communications Services,
22561 1361 414 250 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 2473 132 7 SaudiNet, Saudi Telecom Compa
34984 2028 305 356 TELLCOM ILETISIM HIZMETLERI A
20940 1920 753 1407 Akamai International B.V.
6849 1213 356 24 JSC "Ukrtelecom"
8402 1095 544 15 OJSC "Vimpelcom"
31148 1049 45 23 Freenet Ltd.
13188 1040 97 70 TOV "Bank-Inform"
12479 944 868 72 France Telecom Espana SA
6830 906 2693 466 Liberty Global Operations B.V
8551 873 376 52 Bezeq International-Ltd
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 3237 530 203 Telmex Colombia S.A.
28573 2287 2181 117 NET Serviços de Comunicação S
8151 1670 3255 468 Uninet S.A. de C.V.
7303 1667 1046 239 Telecom Argentina S.A.
6147 1632 374 30 Telefonica del Peru S.A.A.
6503 1248 421 55 Axtel, S.A.B. de C.V.
26615 1074 2325 35 Tim Celular S.A.
7738 999 1882 41 Telemar Norte Leste S.A.
3816 928 424 158 COLOMBIA TELECOMUNICACIONES S
18881 869 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
24863 895 280 37 Link Egypt (Link.NET)
8452 840 958 13 TE-AS
36903 504 254 98 Office National des Postes et
36992 423 1229 32 ETISALAT MISR
37492 312 175 71 Orange Tunisie
24835 304 146 13 Vodafone Data
3741 250 857 208 Internet Solutions
29571 242 21 12 Cote d'Ivoire Telecom
37054 199 19 6 Data Telecom Service
36947 190 807 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 3237 530 203 Telmex Colombia S.A.
22773 3045 2958 141 Cox Communications Inc.
4766 2928 11557 914 Korea Telecom
6389 2796 3688 51 BellSouth.net Inc.
17974 2689 904 81 PT Telekomunikasi Indonesia
3356 2569 10687 495 Level 3 Communications, Inc.
39891 2473 132 7 SaudiNet, Saudi Telecom Compa
7545 2431 336 131 TPG Telecom Limited
28573 2287 2181 117 NET Serviços de Comunicação S
18566 2047 379 189 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 3045 2904 Cox Communications Inc.
6389 2796 2745 BellSouth.net Inc.
17974 2689 2608 PT Telekomunikasi Indonesia
39891 2473 2466 SaudiNet, Saudi Telecom Compa
7545 2431 2300 TPG Telecom Limited
28573 2287 2170 NET Serviços de Comunicação S
3356 2569 2074 Level 3 Communications, Inc.
4766 2928 2014 Korea Telecom
4538 1937 1865 China Education and Research
18566 2047 1858 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
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 /8:17 /9:12 /10:34 /11:94 /12:264
/13:505 /14:1004 /15:1723 /16:12946 /17:7273 /18:12308
/19:25529 /20:36115 /21:38831 /22:59781 /23:51923 /24:294708
/25:1104 /26:1140 /27:721 /28:14 /29:12 /30:7
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
39891 2432 2473 SaudiNet, Saudi Telecom Compa
22773 2252 3045 Cox Communications Inc.
18566 1999 2047 MegaPath Corporation
6389 1639 2796 BellSouth.net Inc.
6983 1396 1749 EarthLink, Inc.
30036 1379 1543 Mediacom Communications Corp
34984 1322 2028 TELLCOM ILETISIM HIZMETLERI A
6147 1183 1632 Telefonica del Peru S.A.A.
10620 1136 3237 Telmex Colombia S.A.
11492 1111 1192 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1486 2:680 4:93 5:1813 6:25 8:1416
11:1 12:1832 13:10 14:1261 15:17 16:2
17:43 18:22 20:48 23:1233 24:1706 27:1908
31:1598 32:38 33:2 34:4 35:3 36:115
37:1921 38:1032 39:6 40:251 41:2666 42:278
43:1296 44:25 45:654 46:2194 47:42 49:877
50:809 52:12 54:73 55:5 56:8 57:40
58:1290 59:714 60:477 61:1751 62:1329 63:1917
64:4421 65:2274 66:4083 67:2059 68:1061 69:3272
70:980 71:446 72:1980 74:2647 75:335 76:422
77:1392 78:1241 79:805 80:1339 81:1302 82:812
83:699 84:723 85:1404 86:392 87:1040 88:520
89:1840 90:151 91:5966 92:847 93:2212 94:2075
95:2181 96:430 97:354 98:1051 99:49 100:69
101:831 103:7463 104:1779 105:61 106:225 107:978
108:626 109:2054 110:1103 111:1480 112:814 113:1082
114:827 115:1286 116:1374 117:1066 118:1795 119:1434
120:442 121:1086 122:2144 123:1828 124:1506 125:1592
128:648 129:383 130:402 131:1183 132:498 133:178
134:411 135:108 136:329 137:309 138:776 139:151
140:237 141:447 142:661 143:508 144:571 145:116
146:728 147:592 148:1130 149:406 150:561 151:606
152:486 153:244 154:488 155:864 156:408 157:463
158:339 159:1011 160:381 161:660 162:1948 163:426
164:675 165:691 166:307 167:836 168:1294 169:172
170:1464 171:244 172:67 173:1545 174:715 175:695
176:1312 177:3706 178:2143 179:919 180:1936 181:1687
182:1784 183:655 184:755 185:3572 186:2660 187:1746
188:2044 189:1577 190:7691 191:1015 192:8369 193:5599
194:4148 195:3654 196:1471 197:962 198:5530 199:5520
200:6646 201:3106 202:9490 203:9140 204:4677 205:2823
206:3081 207:2946 208:3961 209:3964 210:3512 211:1852
212:2552 213:2334 214:863 215:73 216:5730 217:1820
218:695 219:460 220:1433 221:785 222:468 223:707
End of report
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