Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Feb 20 18:12:42 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 21 Feb, 2015
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 533255
Prefixes after maximum aggregation (per Origin AS): 204025
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 259930
Total ASes present in the Internet Routing Table: 49437
Prefixes per ASN: 10.79
Origin-only ASes present in the Internet Routing Table: 36458
Origin ASes announcing only one prefix: 16285
Transit ASes present in the Internet Routing Table: 6273
Transit-only ASes present in the Internet Routing Table: 171
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 107
Max AS path prepend of ASN ( 55644) 100
Prefixes from unregistered ASNs in the Routing Table: 1334
Unregistered ASNs in the Routing Table: 436
Number of 32-bit ASNs allocated by the RIRs: 8646
Number of 32-bit ASNs visible in the Routing Table: 6706
Prefixes from 32-bit ASNs in the Routing Table: 24396
Number of bogon 32-bit ASNs visible in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 400
Number of addresses announced to Internet: 2732253284
Equivalent to 162 /8s, 218 /16s and 224 /24s
Percentage of available address space announced: 73.8
Percentage of allocated address space announced: 73.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 97.2
Total number of prefixes smaller than registry allocations: 180436
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 131658
Total APNIC prefixes after maximum aggregation: 38372
APNIC Deaggregation factor: 3.43
Prefixes being announced from the APNIC address blocks: 137114
Unique aggregates announced from the APNIC address blocks: 55712
APNIC Region origin ASes present in the Internet Routing Table: 5024
APNIC Prefixes per ASN: 27.29
APNIC Region origin ASes announcing only one prefix: 1220
APNIC Region transit ASes present in the Internet Routing Table: 872
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 107
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1310
Number of APNIC addresses announced to Internet: 747396800
Equivalent to 44 /8s, 140 /16s and 94 /24s
Percentage of available APNIC address space announced: 87.3
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: 176104
Total ARIN prefixes after maximum aggregation: 87045
ARIN Deaggregation factor: 2.02
Prefixes being announced from the ARIN address blocks: 178169
Unique aggregates announced from the ARIN address blocks: 83527
ARIN Region origin ASes present in the Internet Routing Table: 16498
ARIN Prefixes per ASN: 10.80
ARIN Region origin ASes announcing only one prefix: 6087
ARIN Region transit ASes present in the Internet Routing Table: 1714
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 352
Number of ARIN addresses announced to Internet: 1061271072
Equivalent to 63 /8s, 65 /16s and 182 /24s
Percentage of available ARIN address space announced: 56.1
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: 129524
Total RIPE prefixes after maximum aggregation: 64588
RIPE Deaggregation factor: 2.01
Prefixes being announced from the RIPE address blocks: 135852
Unique aggregates announced from the RIPE address blocks: 83507
RIPE Region origin ASes present in the Internet Routing Table: 17873
RIPE Prefixes per ASN: 7.60
RIPE Region origin ASes announcing only one prefix: 8145
RIPE Region transit ASes present in the Internet Routing Table: 2965
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: 3456
Number of RIPE addresses announced to Internet: 693406084
Equivalent to 41 /8s, 84 /16s and 137 /24s
Percentage of available RIPE address space announced: 100.8
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: 58761
Total LACNIC prefixes after maximum aggregation: 10997
LACNIC Deaggregation factor: 5.34
Prefixes being announced from the LACNIC address blocks: 68139
Unique aggregates announced from the LACNIC address blocks: 31758
LACNIC Region origin ASes present in the Internet Routing Table: 2400
LACNIC Prefixes per ASN: 28.39
LACNIC Region origin ASes announcing only one prefix: 630
LACNIC Region transit ASes present in the Internet Routing Table: 490
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1499
Number of LACNIC addresses announced to Internet: 167785728
Equivalent to 10 /8s, 0 /16s and 53 /24s
Percentage of available LACNIC address space announced: 100.0
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: 12620
Total AfriNIC prefixes after maximum aggregation: 2979
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 13581
Unique aggregates announced from the AfriNIC address blocks: 5066
AfriNIC Region origin ASes present in the Internet Routing Table: 735
AfriNIC Prefixes per ASN: 18.48
AfriNIC Region origin ASes announcing only one prefix: 203
AfriNIC Region transit ASes present in the Internet Routing Table: 156
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 89
Number of AfriNIC addresses announced to Internet: 61893888
Equivalent to 3 /8s, 176 /16s and 109 /24s
Percentage of available AfriNIC address space announced: 61.5
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 2891 11553 911 Korea Telecom
17974 2826 904 77 PT Telekomunikasi Indonesia
7545 2580 336 128 TPG Telecom Limited
4755 1977 421 205 TATA Communications formerly
4538 1758 4190 71 China Education and Research
9829 1660 1325 36 National Internet Backbone
9808 1547 8717 29 Guangdong Mobile Communicatio
4808 1451 2218 436 CNCGROUP IP network China169
9583 1395 132 556 Sify Limited
9498 1299 336 97 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 2985 2955 141 Cox Communications Inc.
6389 2891 3688 51 BellSouth.net Inc.
3356 2566 10684 480 Level 3 Communications, Inc.
18566 2041 379 183 MegaPath Corporation
20115 1849 1829 443 Charter Communications
4323 1623 1037 407 tw telecom holdings, inc.
6983 1623 850 242 EarthLink, Inc.
30036 1520 312 511 Mediacom Communications Corp
701 1391 11268 678 MCI Communications Services,
22561 1329 412 241 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 1965 300 352 TELLCOM ILETISIM HIZMETLERI A
20940 1619 632 1202 Akamai International B.V.
8402 1344 544 15 OJSC "Vimpelcom"
6849 1199 356 25 JSC "Ukrtelecom"
31148 1045 45 21 Freenet Ltd.
13188 1044 97 61 TOV "Bank-Inform"
8551 903 373 48 Bezeq International-Ltd
12479 862 793 87 France Telecom Espana SA
9198 850 349 25 JSC Kazakhtelecom
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 3117 506 213 Telmex Colombia S.A.
28573 2307 2141 111 NET Serviços de Comunicação S
7303 1788 1190 229 Telecom Argentina S.A.
6147 1589 374 30 Telefonica del Peru S.A.A.
8151 1543 3111 451 Uninet S.A. de C.V.
6503 1196 421 58 Axtel, S.A.B. de C.V.
7738 1001 1882 42 Telemar Norte Leste S.A.
26615 920 2325 35 Tim Celular S.A.
3816 910 395 151 COLOMBIA TELECOMUNICACIONES S
18881 858 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 1556 958 13 TE-AS
24863 965 284 26 Link Egypt (Link.NET)
36903 479 241 90 Office National des Postes et
36992 390 973 31 ETISALAT MISR
37492 319 155 71 Orange Tunisie
24835 299 144 9 Vodafone Data
3741 250 921 209 Internet Solutions
29571 234 21 12 Cote d'Ivoire Telecom
36947 195 712 14 Telecom Algeria
37054 188 19 6 Data Telecom Service
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 3117 506 213 Telmex Colombia S.A.
22773 2985 2955 141 Cox Communications Inc.
4766 2891 11553 911 Korea Telecom
6389 2891 3688 51 BellSouth.net Inc.
17974 2826 904 77 PT Telekomunikasi Indonesia
7545 2580 336 128 TPG Telecom Limited
3356 2566 10684 480 Level 3 Communications, Inc.
39891 2472 128 6 SaudiNet, Saudi Telecom Compa
28573 2307 2141 111 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 2985 2844 Cox Communications Inc.
6389 2891 2840 BellSouth.net Inc.
17974 2826 2749 PT Telekomunikasi Indonesia
39891 2472 2466 SaudiNet, Saudi Telecom Compa
7545 2580 2452 TPG Telecom Limited
28573 2307 2196 NET Serviços de Comunicação S
3356 2566 2086 Level 3 Communications, Inc.
4766 2891 1980 Korea Telecom
18566 2041 1858 MegaPath Corporation
4755 1977 1772 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
47092 UNALLOCATED 8.8.204.0/24 16410 The Reynolds and Rey
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
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
23.92.160.0/24 14013 EPSON America (Factory Automa
23.92.161.0/24 14013 EPSON America (Factory Automa
23.226.112.0/20 62788 Bitfinite LLC
23.252.224.0/20 62502 >>UNKNOWN<<
23.252.224.0/21 62502 >>UNKNOWN<<
23.252.232.0/21 62502 >>UNKNOWN<<
24.231.96.0/24 21548 MTO Telecom Inc.
27.100.7.0/24 56096 >>UNKNOWN<<
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 /8:16 /9:12 /10:34 /11:92 /12:264
/13:504 /14:997 /15:1723 /16:12974 /17:7130 /18:12142
/19:24903 /20:35716 /21:38479 /22:57743 /23:50414 /24:287236
/25:1069 /26:1084 /27:670 /28:17 /29:14 /30:9
/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 2201 2985 Cox Communications Inc.
18566 1996 2041 MegaPath Corporation
6389 1671 2891 BellSouth.net Inc.
30036 1366 1520 Mediacom Communications Corp
6983 1314 1623 EarthLink, Inc.
34984 1274 1965 TELLCOM ILETISIM HIZMETLERI A
11492 1133 1191 CABLE ONE, INC.
6147 1132 1589 Telefonica del Peru S.A.A.
10620 1105 3117 Telmex Colombia S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1474 2:670 3:1 4:97 5:1716 6:21
8:1409 12:1842 13:4 14:1300 15:16 16:2
17:42 18:21 20:49 23:1163 24:1681 27:1851
31:1484 32:39 33:2 34:5 35:3 36:119
37:1862 38:1011 39:9 40:233 41:3046 42:259
43:1091 44:25 45:198 46:2116 47:34 49:795
50:783 52:12 54:66 55:4 56:8 57:33
58:1203 59:680 60:460 61:1765 62:1306 63:1914
64:4427 65:2263 66:4082 67:2023 68:1042 69:3284
70:965 71:435 72:1959 74:2620 75:314 76:404
77:1471 78:1255 79:778 80:1326 81:1332 82:813
83:680 84:682 85:1335 86:387 87:1082 88:501
89:1753 90:148 91:5915 92:808 93:2182 94:1958
95:2090 96:431 97:340 98:1054 99:45 100:73
101:800 103:6796 104:1266 105:61 106:217 107:886
108:611 109:2023 110:1078 111:1474 112:772 113:1030
114:853 115:1258 116:1332 117:1022 118:1688 119:1429
120:438 121:1044 122:2177 123:1718 124:1489 125:1564
128:628 129:373 130:380 131:1098 132:475 133:166
134:405 135:88 136:311 137:302 138:472 139:173
140:229 141:418 142:629 143:471 144:518 145:111
146:688 147:560 148:1104 149:458 150:563 151:748
152:485 153:239 154:325 155:725 156:403 157:331
158:264 159:991 160:372 161:633 162:1904 163:387
164:654 165:670 166:324 167:704 168:1003 169:149
170:1442 171:223 172:41 173:1580 174:688 175:622
176:1444 177:3757 178:2077 179:863 180:1918 181:1581
182:1705 183:603 184:743 185:2943 186:2669 187:1830
188:2012 189:1556 190:7744 191:877 192:8098 193:5562
194:4055 195:3632 196:1683 197:946 198:5501 199:5529
200:6537 201:2991 202:9552 203:9069 204:4655 205:2719
206:2978 207:2995 208:3953 209:3894 210:3492 211:1830
212:2467 213:2277 214:846 215:70 216:5544 217:1808
218:665 219:468 220:1457 221:790 222:463 223:654
End of report
More information about the NANOG
mailing list