Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Sep 5 14:11:31 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 0400 +10GMT Sat 05 Sep, 2015
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 557095
Prefixes after maximum aggregation (per Origin AS): 210220
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 273158
Total ASes present in the Internet Routing Table: 51335
Prefixes per ASN: 10.85
Origin-only ASes present in the Internet Routing Table: 36652
Origin ASes announcing only one prefix: 16121
Transit ASes present in the Internet Routing Table: 6394
Transit-only ASes present in the Internet Routing Table: 174
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: 1084
Unregistered ASNs in the Routing Table: 417
Number of 32-bit ASNs allocated by the RIRs: 10864
Number of 32-bit ASNs visible in the Routing Table: 8289
Prefixes from 32-bit ASNs in the Routing Table: 31110
Number of bogon 32-bit ASNs visible in the Routing Table: 19
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 549
Number of addresses announced to Internet: 2791677888
Equivalent to 166 /8s, 101 /16s and 159 /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: 185801
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 137442
Total APNIC prefixes after maximum aggregation: 39619
APNIC Deaggregation factor: 3.47
Prefixes being announced from the APNIC address blocks: 144696
Unique aggregates announced from the APNIC address blocks: 59649
APNIC Region origin ASes present in the Internet Routing Table: 5082
APNIC Prefixes per ASN: 28.47
APNIC Region origin ASes announcing only one prefix: 1207
APNIC Region transit ASes present in the Internet Routing Table: 890
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 38
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1616
Number of APNIC addresses announced to Internet: 752104064
Equivalent to 44 /8s, 212 /16s and 50 /24s
Percentage of available APNIC address space announced: 87.9
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: 180364
Total ARIN prefixes after maximum aggregation: 88403
ARIN Deaggregation factor: 2.04
Prefixes being announced from the ARIN address blocks: 183248
Unique aggregates announced from the ARIN address blocks: 86047
ARIN Region origin ASes present in the Internet Routing Table: 16586
ARIN Prefixes per ASN: 11.05
ARIN Region origin ASes announcing only one prefix: 6062
ARIN Region transit ASes present in the Internet Routing Table: 1738
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: 647
Number of ARIN addresses announced to Internet: 1101600192
Equivalent to 65 /8s, 169 /16s and 21 /24s
Percentage of available ARIN address space announced: 58.3
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, 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: 135119
Total RIPE prefixes after maximum aggregation: 67450
RIPE Deaggregation factor: 2.00
Prefixes being announced from the RIPE address blocks: 142046
Unique aggregates announced from the RIPE address blocks: 88128
RIPE Region origin ASes present in the Internet Routing Table: 17968
RIPE Prefixes per ASN: 7.91
RIPE Region origin ASes announcing only one prefix: 8043
RIPE Region transit ASes present in the Internet Routing Table: 2997
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: 3989
Number of RIPE addresses announced to Internet: 699409536
Equivalent to 41 /8s, 176 /16s and 36 /24s
Percentage of available RIPE address space announced: 101.7
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: 60887
Total LACNIC prefixes after maximum aggregation: 11605
LACNIC Deaggregation factor: 5.25
Prefixes being announced from the LACNIC address blocks: 72568
Unique aggregates announced from the LACNIC address blocks: 33625
LACNIC Region origin ASes present in the Internet Routing Table: 2465
LACNIC Prefixes per ASN: 29.44
LACNIC Region origin ASes announcing only one prefix: 614
LACNIC Region transit ASes present in the Internet Routing Table: 524
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: 1894
Number of LACNIC addresses announced to Internet: 168755968
Equivalent to 10 /8s, 15 /16s and 3 /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: 12049
Total AfriNIC prefixes after maximum aggregation: 3097
AfriNIC Deaggregation factor: 3.89
Prefixes being announced from the AfriNIC address blocks: 13988
Unique aggregates announced from the AfriNIC address blocks: 5344
AfriNIC Region origin ASes present in the Internet Routing Table: 740
AfriNIC Prefixes per ASN: 18.90
AfriNIC Region origin ASes announcing only one prefix: 195
AfriNIC Region transit ASes present in the Internet Routing Table: 164
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: 143
Number of AfriNIC addresses announced to Internet: 69319936
Equivalent to 4 /8s, 33 /16s and 189 /24s
Percentage of available AfriNIC address space announced: 68.9
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 3000 11134 979 Korea Telecom
7545 2769 339 134 TPG Telecom Limited
17974 2709 904 80 PT Telekomunikasi Indonesia
4755 2041 427 229 TATA Communications formerly
4538 1946 4190 71 China Education and Research
9829 1875 1374 201 National Internet Backbone
9808 1585 8639 18 Guangdong Mobile Communicatio
4808 1529 2254 474 CNCGROUP IP network China169
9583 1526 121 570 Sify Limited
7552 1423 1084 9 Viettel Corporation
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 3165 2960 139 Cox Communications Inc.
6389 2696 3688 51 BellSouth.net Inc.
3356 2535 10709 499 Level 3 Communications, Inc.
18566 2146 389 257 MegaPath Corporation
20115 1881 1864 395 Charter Communications
6983 1739 850 243 EarthLink, Inc.
4323 1583 1005 404 tw telecom holdings, inc.
30036 1577 319 451 Mediacom Communications Corp
701 1404 11401 679 MCI Communications Services,
22561 1375 415 258 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 2103 830 1528 Akamai International B.V.
34984 2014 306 377 TELLCOM ILETISIM HIZMETLERI A
6849 1209 355 21 JSC "Ukrtelecom"
13188 1070 97 77 TOV "Bank-Inform"
31148 1049 46 23 Freenet Ltd.
8402 1010 544 15 OJSC "Vimpelcom"
12479 990 965 78 France Telecom Espana SA
8551 984 376 52 Bezeq International-Ltd
6830 917 2694 468 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 3349 538 167 Telmex Colombia S.A.
28573 2286 2169 124 NET Serviços de Comunicação S
8151 1707 3272 481 Uninet S.A. de C.V.
7303 1556 932 238 Telecom Argentina S.A.
6147 1443 374 30 Telefonica del Peru S.A.A.
6503 1285 445 58 Axtel, S.A.B. de C.V.
26615 1098 2325 35 Tim Celular S.A.
7738 997 1882 41 Telemar Norte Leste S.A.
3816 952 436 163 COLOMBIA TELECOMUNICACIONES S
11830 916 364 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
8452 902 1470 14 TE-AS
24863 768 280 41 Link Egypt (Link.NET)
36903 512 258 99 Office National des Postes et
36992 439 1229 32 ETISALAT MISR
24835 280 146 12 Vodafone Data
3741 247 855 203 Internet Solutions
29571 247 21 13 Cote d'Ivoire Telecom
37054 220 20 7 Data Telecom Service
36947 183 807 13 Telecom Algeria
15706 173 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 3349 538 167 Telmex Colombia S.A.
22773 3165 2960 139 Cox Communications Inc.
4766 3000 11134 979 Korea Telecom
7545 2769 339 134 TPG Telecom Limited
17974 2709 904 80 PT Telekomunikasi Indonesia
6389 2696 3688 51 BellSouth.net Inc.
3356 2535 10709 499 Level 3 Communications, Inc.
39891 2472 128 6 SaudiNet, Saudi Telecom Compa
28573 2286 2169 124 NET Serviços de Comunicação S
18566 2146 389 257 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 3165 3026 Cox Communications Inc.
6389 2696 2645 BellSouth.net Inc.
7545 2769 2635 TPG Telecom Limited
17974 2709 2629 PT Telekomunikasi Indonesia
39891 2472 2466 SaudiNet, Saudi Telecom Compa
28573 2286 2162 NET Serviços de Comunicação S
3356 2535 2036 Level 3 Communications, Inc.
4766 3000 2021 Korea Telecom
18566 2146 1889 MegaPath Corporation
4538 1946 1875 China Education and Research
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
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
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
23.226.112.0/20 62788 >>UNKNOWN<<
23.249.144.0/20 40430 colo4jax, LLC
23.249.144.0/21 40430 colo4jax, LLC
23.249.152.0/21 40430 colo4jax, LLC
27.50.8.0/24 55548 Ravibhawan
27.50.9.0/24 55548 Ravibhawan
27.50.10.0/23 55548 Ravibhawan
27.100.7.0/24 56096 >>UNKNOWN<<
31.170.96.0/23 23456 32bit Transition AS
31.217.248.0/21 44902 COVAGE NETWORKS SASU
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 /12:261
/13:500 /14:1005 /15:1739 /16:12892 /17:7224 /18:12408
/19:25587 /20:36125 /21:38819 /22:61139 /23:53320 /24:303614
/25:855 /26:928 /27:458 /28:14 /29:14 /30:9
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
39891 2432 2472 SaudiNet, Saudi Telecom Compa
22773 2380 3165 Cox Communications Inc.
18566 2061 2146 MegaPath Corporation
6389 1608 2696 BellSouth.net Inc.
30036 1397 1577 Mediacom Communications Corp
6983 1386 1739 EarthLink, Inc.
34984 1334 2014 TELLCOM ILETISIM HIZMETLERI A
10620 1227 3349 Telmex Colombia S.A.
11492 1124 1207 CABLE ONE, INC.
22561 1048 1375 CenturyTel Internet Holdings,
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1574 2:689 4:97 5:1881 6:25 8:1403
11:1 12:1810 13:19 14:1414 15:17 16:2
17:49 18:22 20:49 23:1276 24:1752 27:2085
31:1612 32:37 33:2 34:4 35:3 36:163
37:2050 38:1057 39:15 40:71 41:2795 42:341
43:1508 44:30 45:1078 46:2370 47:54 49:937
50:792 52:22 54:86 55:5 56:28 57:42
58:1372 59:716 60:486 61:1757 62:1375 63:1899
64:4432 65:2251 66:3986 67:2054 68:1066 69:3230
70:1041 71:448 72:1972 74:2587 75:357 76:396
77:1357 78:1156 79:810 80:1356 81:1350 82:864
83:723 84:769 85:1385 86:450 87:1025 88:537
89:1932 90:150 91:5946 92:842 93:2264 94:2078
95:2159 96:422 97:348 98:970 99:55 100:72
101:847 103:8216 104:2025 105:87 106:347 107:1053
108:623 109:2143 110:1192 111:1467 112:823 113:1111
114:847 115:1328 116:1455 117:1103 118:1941 119:1472
120:451 121:1098 122:2173 123:1848 124:1517 125:1673
128:663 129:396 130:432 131:1247 132:500 133:165
134:416 135:103 136:340 137:316 138:1205 139:162
140:250 141:435 142:679 143:542 144:551 145:126
146:791 147:586 148:1253 149:432 150:594 151:796
152:531 153:254 154:510 155:871 156:422 157:422
158:347 159:1032 160:412 161:676 162:2049 163:452
164:693 165:715 166:301 167:868 168:1252 169:194
170:1476 171:249 172:253 173:1500 174:716 175:711
176:1429 177:3963 178:2187 179:983 180:1950 181:1671
182:1821 183:632 184:744 185:4200 186:2990 187:1837
188:2093 189:1638 190:7763 191:1150 192:8548 193:5662
194:4232 195:3652 196:1969 197:1066 198:5474 199:5527
200:6705 201:3304 202:9544 203:9188 204:4632 205:2888
206:3112 207:3042 208:3995 209:3919 210:3605 211:1930
212:2565 213:2229 214:860 215:74 216:5761 217:1789
218:734 219:466 220:1549 221:810 222:475 223:819
End of report
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