Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Mar 18 18:11:07 UTC 2016
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,
SAFNOG, PaNOG, SdNOG, BJNOG, CaribNOG and the RIPE Routing WG.
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 19 Mar, 2016
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 587053
Prefixes after maximum aggregation (per Origin AS): 215951
Deaggregation factor: 2.72
Unique aggregates announced (without unneeded subnets): 287098
Total ASes present in the Internet Routing Table: 53151
Prefixes per ASN: 11.05
Origin-only ASes present in the Internet Routing Table: 36631
Origin ASes announcing only one prefix: 15776
Transit ASes present in the Internet Routing Table: 6384
Transit-only ASes present in the Internet Routing Table: 165
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 39
Max AS path prepend of ASN ( 40285) 34
Prefixes from unregistered ASNs in the Routing Table: 1026
Unregistered ASNs in the Routing Table: 358
Number of 32-bit ASNs allocated by the RIRs: 13113
Number of 32-bit ASNs visible in the Routing Table: 10136
Prefixes from 32-bit ASNs in the Routing Table: 39613
Number of bogon 32-bit ASNs visible in the Routing Table: 14
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 338
Number of addresses announced to Internet: 2808150724
Equivalent to 167 /8s, 96 /16s and 250 /24s
Percentage of available address space announced: 75.8
Percentage of allocated address space announced: 75.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 98.1
Total number of prefixes smaller than registry allocations: 192177
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 150202
Total APNIC prefixes after maximum aggregation: 41868
APNIC Deaggregation factor: 3.59
Prefixes being announced from the APNIC address blocks: 160226
Unique aggregates announced from the APNIC address blocks: 65408
APNIC Region origin ASes present in the Internet Routing Table: 5155
APNIC Prefixes per ASN: 31.08
APNIC Region origin ASes announcing only one prefix: 1184
APNIC Region transit ASes present in the Internet Routing Table: 909
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: 1941
Number of APNIC addresses announced to Internet: 753104644
Equivalent to 44 /8s, 227 /16s and 119 /24s
Percentage of available APNIC address space announced: 88.0
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: 180160
Total ARIN prefixes after maximum aggregation: 88954
ARIN Deaggregation factor: 2.03
Prefixes being announced from the ARIN address blocks: 185089
Unique aggregates announced from the ARIN address blocks: 87856
ARIN Region origin ASes present in the Internet Routing Table: 16403
ARIN Prefixes per ASN: 11.28
ARIN Region origin ASes announcing only one prefix: 5881
ARIN Region transit ASes present in the Internet Routing Table: 1706
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 37
Number of ARIN region 32-bit ASNs visible in the Routing Table: 1081
Number of ARIN addresses announced to Internet: 1102292288
Equivalent to 65 /8s, 179 /16s and 165 /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: 141179
Total RIPE prefixes after maximum aggregation: 69758
RIPE Deaggregation factor: 2.02
Prefixes being announced from the RIPE address blocks: 149900
Unique aggregates announced from the RIPE address blocks: 92518
RIPE Region origin ASes present in the Internet Routing Table: 18056
RIPE Prefixes per ASN: 8.30
RIPE Region origin ASes announcing only one prefix: 7939
RIPE Region transit ASes present in the Internet Routing Table: 2980
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 4568
Number of RIPE addresses announced to Internet: 703950208
Equivalent to 41 /8s, 245 /16s and 109 /24s
Percentage of available RIPE address space announced: 102.3
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: 61593
Total LACNIC prefixes after maximum aggregation: 12162
LACNIC Deaggregation factor: 5.06
Prefixes being announced from the LACNIC address blocks: 75518
Unique aggregates announced from the LACNIC address blocks: 35353
LACNIC Region origin ASes present in the Internet Routing Table: 2472
LACNIC Prefixes per ASN: 30.55
LACNIC Region origin ASes announcing only one prefix: 587
LACNIC Region transit ASes present in the Internet Routing Table: 552
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2354
Number of LACNIC addresses announced to Internet: 170478336
Equivalent to 10 /8s, 41 /16s and 75 /24s
Percentage of available LACNIC address space announced: 101.6
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: 14226
Total AfriNIC prefixes after maximum aggregation: 3168
AfriNIC Deaggregation factor: 4.49
Prefixes being announced from the AfriNIC address blocks: 15982
Unique aggregates announced from the AfriNIC address blocks: 5664
AfriNIC Region origin ASes present in the Internet Routing Table: 738
AfriNIC Prefixes per ASN: 21.66
AfriNIC Region origin ASes announcing only one prefix: 185
AfriNIC Region transit ASes present in the Internet Routing Table: 166
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 192
Number of AfriNIC addresses announced to Internet: 77965056
Equivalent to 4 /8s, 165 /16s and 167 /24s
Percentage of available AfriNIC address space announced: 77.5
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
4538 5589 4192 76 China Education and Research
7545 3268 352 188 TPG Telecom Limited
4766 3146 11142 1116 Korea Telecom
17974 2912 914 96 PT Telekomunikasi Indonesia
9829 2404 1449 429 National Internet Backbone
4755 2097 432 244 TATA Communications formerly
9808 1857 8717 30 Guangdong Mobile Communicatio
4808 1640 2287 526 CNCGROUP IP network China169
4788 1519 645 62 TM Net, Internet Service Prov
9583 1519 121 564 Sify Limited
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 3346 2948 145 Cox Communications Inc.
6389 2371 3687 42 BellSouth.net Inc.
18566 2211 394 275 MegaPath Corporation
20115 1917 1927 401 Charter Communications
30036 1735 342 244 Mediacom Communications Corp
6983 1692 849 232 EarthLink, Inc.
4323 1578 1004 390 tw telecom holdings, inc.
209 1539 4493 1246 Qwest Communications Company,
701 1389 11452 661 MCI Communications Services,
11492 1267 235 591 CABLE ONE, INC.
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 2515 135 9 SaudiNet, Saudi Telecom Compa
20940 2397 917 1722 Akamai International B.V.
34984 1953 323 413 TELLCOM ILETISIM HIZMETLERI A
8551 1258 376 54 Bezeq International-Ltd
6849 1179 355 21 JSC "Ukrtelecom"
12479 1145 980 86 France Telecom Espana SA
8402 1134 544 15 OJSC "Vimpelcom"
13188 1077 98 78 TOV "Bank-Inform"
31148 1041 47 41 Freenet Ltd.
9198 925 352 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 3434 539 173 Telmex Colombia S.A.
8151 2209 3415 543 Uninet S.A. de C.V.
7303 1520 940 242 Telecom Argentina S.A.
11830 1441 366 25 Instituto Costarricense de El
6503 1432 453 56 Axtel, S.A.B. de C.V.
6147 1043 377 27 Telefonica del Peru S.A.A.
3816 994 478 185 COLOMBIA TELECOMUNICACIONES S
26615 994 2325 34 Tim Celular S.A.
7738 992 1882 41 Telemar Norte Leste S.A.
28573 888 2170 158 NET Serviços de Comunicação S
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 1235 402 35 Link Egypt (Link.NET)
8452 736 1472 15 TE-AS
37611 644 48 2 Afrihost-Brevis Computer Serv
36903 584 294 104 Office National des Postes et
36992 505 1357 25 ETISALAT MISR
37492 380 233 65 Orange Tunisie
24835 338 146 12 Vodafone Data
29571 267 21 12 Cote d'Ivoire Telecom
2018 249 327 74 TENET (The UNINET Project)
36947 233 807 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
4538 5589 4192 76 China Education and Research
10620 3434 539 173 Telmex Colombia S.A.
22773 3346 2948 145 Cox Communications Inc.
7545 3268 352 188 TPG Telecom Limited
4766 3146 11142 1116 Korea Telecom
17974 2912 914 96 PT Telekomunikasi Indonesia
39891 2515 135 9 SaudiNet, Saudi Telecom Compa
9829 2404 1449 429 National Internet Backbone
20940 2397 917 1722 Akamai International B.V.
6389 2371 3687 42 BellSouth.net Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
10620 3434 3261 Telmex Colombia S.A.
22773 3346 3201 Cox Communications Inc.
7545 3268 3080 TPG Telecom Limited
17974 2912 2816 PT Telekomunikasi Indonesia
39891 2515 2506 SaudiNet, Saudi Telecom Compa
6389 2371 2329 BellSouth.net Inc.
4766 3146 2030 Korea Telecom
9829 2404 1975 National Internet Backbone
18566 2211 1936 MegaPath Corporation
4755 2097 1853 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
53506 UNALLOCATED 8.17.102.0/23 2828 XO Communications
46467 UNALLOCATED 8.19.192.0/24 46887 Lightower Fiber Netw
16589 UNALLOCATED 8.20.247.0/24 35838 CCANET Limited
16589 UNALLOCATED 8.26.56.0/24 35838 CCANET Limited
46473 UNALLOCATED 8.27.122.0/24 3356 Level 3 Communicatio
46473 UNALLOCATED 8.27.124.0/24 3356 Level 3 Communicatio
27205 UNALLOCATED 8.38.16.0/21 3356 Level 3 Communicatio
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
23.226.112.0/20 62788 >>UNKNOWN<<
23.249.144.0/20 40430 colo4jax, LLC
27.100.7.0/24 56096 >>UNKNOWN<<
37.46.10.0/23 36351 SoftLayer Technologies Inc.
37.46.14.0/24 36351 SoftLayer Technologies Inc.
37.46.15.0/24 36351 SoftLayer Technologies Inc.
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<<
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 /9:13 /10:36 /11:101 /12:267
/13:517 /14:1030 /15:1766 /16:12974 /17:7558 /18:12687
/19:25805 /20:38108 /21:40034 /22:65035 /23:56283 /24:323222
/25:540 /26:591 /27:397 /28:20 /29:16 /30:12
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
22773 2527 3346 Cox Communications Inc.
39891 2472 2515 SaudiNet, Saudi Telecom Compa
18566 2113 2211 MegaPath Corporation
30036 1550 1735 Mediacom Communications Corp
6389 1512 2371 BellSouth.net Inc.
6983 1341 1692 EarthLink, Inc.
10620 1332 3434 Telmex Colombia S.A.
34984 1241 1953 TELLCOM ILETISIM HIZMETLERI A
11492 1177 1267 CABLE ONE, INC.
6849 997 1179 JSC "Ukrtelecom"
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1640 2:737 4:20 5:2136 6:27 8:926
12:1778 13:38 14:1643 15:45 16:2 17:72
18:20 20:49 23:1426 24:1748 27:2266 31:1760
32:54 33:2 34:2 35:5 36:251 37:2267
38:1179 39:27 40:87 41:2812 42:388 43:1675
44:40 45:1752 46:2450 47:71 49:1131 50:843
51:8 52:134 54:198 55:3 56:6 57:44
58:1524 59:867 60:574 61:1800 62:1483 63:1926
64:4445 65:2157 66:4013 67:2120 68:1103 69:3263
70:1045 71:469 72:1970 74:2543 75:338 76:432
77:1368 78:1293 79:847 80:1304 81:1364 82:900
83:677 84:802 85:1588 86:467 87:1049 88:570
89:1927 90:168 91:6048 92:857 93:2297 94:2341
95:2309 96:461 97:351 98:956 99:45 100:69
101:1020 103:10020 104:2304 105:148 106:395 107:1155
108:654 109:2117 110:1262 111:1623 112:948 113:1137
114:1055 115:1701 116:1540 117:1416 118:2142 119:1568
120:514 121:1175 122:2226 123:1998 124:1612 125:1744
128:732 129:378 130:413 131:1275 132:604 133:173
134:451 135:122 136:354 137:332 138:1737 139:212
140:339 141:468 142:634 143:874 144:613 145:161
146:847 147:657 148:1467 149:478 150:651 151:828
152:606 153:271 154:556 155:912 156:491 157:445
158:348 159:1099 160:432 161:726 162:2306 163:539
164:728 165:1122 166:314 167:1071 168:1596 169:624
170:1578 171:265 172:503 173:1675 174:720 175:901
176:1532 177:4057 178:2243 179:1099 180:2038 181:1693
182:1954 183:671 184:814 185:5969 186:3005 187:2057
188:2140 189:1758 190:7682 191:1244 192:8903 193:5723
194:4375 195:3764 196:1674 197:1103 198:5522 199:5632
200:6890 201:3692 202:10150 203:9615 204:4644 205:2706
206:2961 207:3108 208:4079 209:3892 210:3947 211:2039
212:2640 213:2189 214:827 215:73 216:5751 217:1917
218:763 219:561 220:1676 221:855 222:665 223:936
End of report
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