Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jul 3 18:12:50 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 Jul, 2015
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 550249
Prefixes after maximum aggregation (per Origin AS): 208674
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 268411
Total ASes present in the Internet Routing Table: 50789
Prefixes per ASN: 10.83
Origin-only ASes present in the Internet Routing Table: 36712
Origin ASes announcing only one prefix: 16251
Transit ASes present in the Internet Routing Table: 6315
Transit-only ASes present in the Internet Routing Table: 170
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 39
Max AS path prepend of ASN ( 12486) 32
Prefixes from unregistered ASNs in the Routing Table: 1301
Unregistered ASNs in the Routing Table: 429
Number of 32-bit ASNs allocated by the RIRs: 10078
Number of 32-bit ASNs visible in the Routing Table: 7762
Prefixes from 32-bit ASNs in the Routing Table: 28578
Number of bogon 32-bit ASNs visible in the Routing Table: 13
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 430
Number of addresses announced to Internet: 2783922208
Equivalent to 165 /8s, 239 /16s and 72 /24s
Percentage of available address space announced: 75.2
Percentage of allocated address space announced: 75.2
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: 184108
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 136211
Total APNIC prefixes after maximum aggregation: 39443
APNIC Deaggregation factor: 3.45
Prefixes being announced from the APNIC address blocks: 142945
Unique aggregates announced from the APNIC address blocks: 57920
APNIC Region origin ASes present in the Internet Routing Table: 5064
APNIC Prefixes per ASN: 28.23
APNIC Region origin ASes announcing only one prefix: 1207
APNIC Region transit ASes present in the Internet Routing Table: 877
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 39
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1532
Number of APNIC addresses announced to Internet: 751672000
Equivalent to 44 /8s, 205 /16s and 154 /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: 179696
Total ARIN prefixes after maximum aggregation: 88104
ARIN Deaggregation factor: 2.04
Prefixes being announced from the ARIN address blocks: 182248
Unique aggregates announced from the ARIN address blocks: 84956
ARIN Region origin ASes present in the Internet Routing Table: 16607
ARIN Prefixes per ASN: 10.97
ARIN Region origin ASes announcing only one prefix: 6122
ARIN Region transit ASes present in the Internet Routing Table: 1741
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: 520
Number of ARIN addresses announced to Internet: 1101810720
Equivalent to 65 /8s, 172 /16s and 76 /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: 133318
Total RIPE prefixes after maximum aggregation: 66535
RIPE Deaggregation factor: 2.00
Prefixes being announced from the RIPE address blocks: 139867
Unique aggregates announced from the RIPE address blocks: 86823
RIPE Region origin ASes present in the Internet Routing Table: 17973
RIPE Prefixes per ASN: 7.78
RIPE Region origin ASes announcing only one prefix: 8120
RIPE Region transit ASes present in the Internet Routing Table: 2958
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 35
Number of RIPE region 32-bit ASNs visible in the Routing Table: 3813
Number of RIPE addresses announced to Internet: 696003072
Equivalent to 41 /8s, 124 /16s and 42 /24s
Percentage of available RIPE address space announced: 101.2
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: 60118
Total LACNIC prefixes after maximum aggregation: 11475
LACNIC Deaggregation factor: 5.24
Prefixes being announced from the LACNIC address blocks: 70857
Unique aggregates announced from the LACNIC address blocks: 33085
LACNIC Region origin ASes present in the Internet Routing Table: 2446
LACNIC Prefixes per ASN: 28.97
LACNIC Region origin ASes announcing only one prefix: 610
LACNIC Region transit ASes present in the Internet Routing Table: 508
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1768
Number of LACNIC addresses announced to Internet: 168186432
Equivalent to 10 /8s, 6 /16s and 82 /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: 12069
Total AfriNIC prefixes after maximum aggregation: 3068
AfriNIC Deaggregation factor: 3.93
Prefixes being announced from the AfriNIC address blocks: 13902
Unique aggregates announced from the AfriNIC address blocks: 5239
AfriNIC Region origin ASes present in the Internet Routing Table: 734
AfriNIC Prefixes per ASN: 18.94
AfriNIC Region origin ASes announcing only one prefix: 192
AfriNIC Region transit ASes present in the Internet Routing Table: 161
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: 129
Number of AfriNIC addresses announced to Internet: 65738496
Equivalent to 3 /8s, 235 /16s and 23 /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 2950 11304 937 Korea Telecom
17974 2696 904 78 PT Telekomunikasi Indonesia
7545 2619 336 130 TPG Telecom Limited
4538 2068 4190 71 China Education and Research
4755 2025 423 222 TATA Communications formerly
9829 1765 1353 120 National Internet Backbone
9808 1532 8717 28 Guangdong Mobile Communicatio
9583 1514 119 573 Sify Limited
4808 1460 2240 468 CNCGROUP IP network China169
9498 1361 336 109 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 3181 2960 141 Cox Communications Inc.
6389 2758 3688 51 BellSouth.net Inc.
3356 2575 10700 503 Level 3 Communications, Inc.
18566 2059 380 198 MegaPath Corporation
20115 1865 1840 407 Charter Communications
6983 1751 850 244 EarthLink, Inc.
4323 1608 1022 410 tw telecom holdings, inc.
30036 1567 319 446 Mediacom Communications Corp
701 1393 11371 676 MCI Communications Services,
22561 1382 415 257 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 2164 305 366 TELLCOM ILETISIM HIZMETLERI A
20940 2012 788 1457 Akamai International B.V.
6849 1209 355 21 JSC "Ukrtelecom"
13188 1048 97 75 TOV "Bank-Inform"
31148 1048 45 23 Freenet Ltd.
8402 1032 544 15 OJSC "Vimpelcom"
12479 952 869 74 France Telecom Espana SA
6830 912 2694 468 Liberty Global Operations B.V
8551 887 376 53 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 3265 532 236 Telmex Colombia S.A.
28573 2279 2170 113 NET Serviços de Comunicação S
8151 1695 3253 475 Uninet S.A. de C.V.
7303 1630 1007 238 Telecom Argentina S.A.
6147 1387 372 43 Telefonica del Peru S.A.A.
6503 1267 421 56 Axtel, S.A.B. de C.V.
26615 1077 2325 35 Tim Celular S.A.
7738 999 1882 41 Telemar Norte Leste S.A.
3816 951 428 161 COLOMBIA TELECOMUNICACIONES S
11830 892 364 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 876 280 26 Link Egypt (Link.NET)
8452 838 958 13 TE-AS
36903 512 258 99 Office National des Postes et
36992 423 1229 32 ETISALAT MISR
37492 312 175 71 Orange Tunisie
24835 307 146 12 Vodafone Data
3741 250 857 208 Internet Solutions
29571 238 21 13 Cote d'Ivoire Telecom
36947 193 807 13 Telecom Algeria
15706 174 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 3265 532 236 Telmex Colombia S.A.
22773 3181 2960 141 Cox Communications Inc.
4766 2950 11304 937 Korea Telecom
6389 2758 3688 51 BellSouth.net Inc.
17974 2696 904 78 PT Telekomunikasi Indonesia
7545 2619 336 130 TPG Telecom Limited
3356 2575 10700 503 Level 3 Communications, Inc.
39891 2472 128 6 SaudiNet, Saudi Telecom Compa
28573 2279 2170 113 NET Serviços de Comunicação S
34984 2164 305 366 TELLCOM ILETISIM HIZMETLERI A
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 3181 3040 Cox Communications Inc.
6389 2758 2707 BellSouth.net Inc.
17974 2696 2618 PT Telekomunikasi Indonesia
7545 2619 2489 TPG Telecom Limited
39891 2472 2466 SaudiNet, Saudi Telecom Compa
28573 2279 2166 NET Serviços de Comunicação S
3356 2575 2072 Level 3 Communications, Inc.
4766 2950 2013 Korea Telecom
4538 2068 1997 China Education and Research
18566 2059 1861 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 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
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<<
41.73.2.0/24 37004 >>UNKNOWN<<
41.73.3.0/24 37004 >>UNKNOWN<<
41.73.4.0/24 37004 >>UNKNOWN<<
41.73.5.0/24 37004 >>UNKNOWN<<
41.73.6.0/24 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 /9:13 /10:36 /11:95 /12:263
/13:506 /14:1003 /15:1725 /16:12937 /17:7278 /18:12362
/19:25560 /20:35988 /21:38779 /22:60280 /23:52141 /24:298259
/25:1100 /26:1144 /27:715 /28:14 /29:12 /30:7
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
39891 2432 2472 SaudiNet, Saudi Telecom Compa
22773 2381 3181 Cox Communications Inc.
18566 2005 2059 MegaPath Corporation
6389 1629 2758 BellSouth.net Inc.
34984 1422 2164 TELLCOM ILETISIM HIZMETLERI A
6983 1398 1751 EarthLink, Inc.
30036 1387 1567 Mediacom Communications Corp
10620 1149 3265 Telmex Colombia S.A.
11492 1108 1191 CABLE ONE, INC.
22561 1055 1382 CenturyTel Internet Holdings,
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1502 2:687 4:93 5:1866 6:25 8:1390
11:1 12:1820 13:14 14:1383 15:17 16:2
17:42 18:22 20:48 23:1251 24:1736 27:1987
31:1596 32:38 33:2 34:4 35:3 36:124
37:1960 38:1042 39:6 40:82 41:2700 42:297
43:1364 44:28 45:745 46:2298 47:44 49:908
50:802 52:12 54:77 55:4 56:6 57:42
58:1326 59:724 60:480 61:1747 62:1355 63:1914
64:4452 65:2270 66:4045 67:2074 68:1070 69:3252
70:1023 71:443 72:1971 74:2665 75:334 76:426
77:1272 78:1172 79:801 80:1361 81:1301 82:844
83:722 84:726 85:1374 86:439 87:1062 88:528
89:1898 90:144 91:5996 92:841 93:2269 94:2060
95:2199 96:428 97:347 98:1052 99:53 100:72
101:845 103:7755 104:1781 105:61 106:264 107:1003
108:630 109:2066 110:1145 111:1463 112:843 113:1109
114:843 115:1255 116:1402 117:1064 118:1858 119:1447
120:455 121:1106 122:2122 123:1841 124:1526 125:1622
128:645 129:390 130:407 131:1196 132:508 133:171
134:403 135:94 136:331 137:315 138:923 139:152
140:236 141:450 142:666 143:497 144:551 145:121
146:748 147:585 148:1214 149:420 150:557 151:648
152:519 153:248 154:463 155:871 156:434 157:420
158:352 159:1000 160:396 161:650 162:1947 163:438
164:689 165:691 166:306 167:833 168:1275 169:182
170:1468 171:245 172:274 173:1534 174:718 175:703
176:1396 177:3857 178:2157 179:957 180:1936 181:1582
182:1824 183:627 184:763 185:3789 186:2728 187:1768
188:2051 189:1574 190:7722 191:1002 192:8509 193:5620
194:4177 195:3696 196:1991 197:982 198:5534 199:5496
200:6604 201:3252 202:9515 203:9119 204:4705 205:2842
206:3059 207:2969 208:3982 209:3975 210:3575 211:1888
212:2568 213:2299 214:840 215:73 216:5756 217:1817
218:711 219:469 220:1457 221:791 222:490 223:773
End of report
More information about the NANOG
mailing list