[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri May 20 18:10:43 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 21 May, 2016
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 593812
Prefixes after maximum aggregation (per Origin AS): 217438
Deaggregation factor: 2.73
Unique aggregates announced (without unneeded subnets): 291167
Total ASes present in the Internet Routing Table: 53819
Prefixes per ASN: 11.03
Origin-only ASes present in the Internet Routing Table: 36588
Origin ASes announcing only one prefix: 15681
Transit ASes present in the Internet Routing Table: 6448
Transit-only ASes present in the Internet Routing Table: 168
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 39
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 960
Unregistered ASNs in the Routing Table: 360
Number of 32-bit ASNs allocated by the RIRs: 13944
Number of 32-bit ASNs visible in the Routing Table: 10783
Prefixes from 32-bit ASNs in the Routing Table: 42394
Number of bogon 32-bit ASNs visible in the Routing Table: 28
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 383
Number of addresses announced to Internet: 2810367044
Equivalent to 167 /8s, 130 /16s and 204 /24s
Percentage of available address space announced: 75.9
Percentage of allocated address space announced: 75.9
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: 193857
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 151956
Total APNIC prefixes after maximum aggregation: 42399
APNIC Deaggregation factor: 3.58
Prefixes being announced from the APNIC address blocks: 163075
Unique aggregates announced from the APNIC address blocks: 66721
APNIC Region origin ASes present in the Internet Routing Table: 5180
APNIC Prefixes per ASN: 31.48
APNIC Region origin ASes announcing only one prefix: 1179
APNIC Region transit ASes present in the Internet Routing Table: 916
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 39
Number of APNIC region 32-bit ASNs visible in the Routing Table: 2087
Number of APNIC addresses announced to Internet: 754229060
Equivalent to 44 /8s, 244 /16s and 159 /24s
Percentage of available APNIC address space announced: 88.1
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: 180969
Total ARIN prefixes after maximum aggregation: 89100
ARIN Deaggregation factor: 2.03
Prefixes being announced from the ARIN address blocks: 186372
Unique aggregates announced from the ARIN address blocks: 88141
ARIN Region origin ASes present in the Internet Routing Table: 16361
ARIN Prefixes per ASN: 11.39
ARIN Region origin ASes announcing only one prefix: 5842
ARIN Region transit ASes present in the Internet Routing Table: 1716
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: 1221
Number of ARIN addresses announced to Internet: 1101448512
Equivalent to 65 /8s, 166 /16s and 197 /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, 393216-397212
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: 142433
Total RIPE prefixes after maximum aggregation: 70409
RIPE Deaggregation factor: 2.02
Prefixes being announced from the RIPE address blocks: 151690
Unique aggregates announced from the RIPE address blocks: 94010
RIPE Region origin ASes present in the Internet Routing Table: 18083
RIPE Prefixes per ASN: 8.39
RIPE Region origin ASes announcing only one prefix: 7903
RIPE Region transit ASes present in the Internet Routing Table: 3012
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 4773
Number of RIPE addresses announced to Internet: 704402560
Equivalent to 41 /8s, 252 /16s and 84 /24s
Percentage of available RIPE address space announced: 102.4
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: 61841
Total LACNIC prefixes after maximum aggregation: 12235
LACNIC Deaggregation factor: 5.05
Prefixes being announced from the LACNIC address blocks: 76253
Unique aggregates announced from the LACNIC address blocks: 36154
LACNIC Region origin ASes present in the Internet Routing Table: 2482
LACNIC Prefixes per ASN: 30.72
LACNIC Region origin ASes announcing only one prefix: 577
LACNIC Region transit ASes present in the Internet Routing Table: 570
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 23
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2493
Number of LACNIC addresses announced to Internet: 171197760
Equivalent to 10 /8s, 52 /16s and 69 /24s
Percentage of available LACNIC address space announced: 102.0
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: 14112
Total AfriNIC prefixes after maximum aggregation: 3258
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 16039
Unique aggregates announced from the AfriNIC address blocks: 5798
AfriNIC Region origin ASes present in the Internet Routing Table: 737
AfriNIC Prefixes per ASN: 21.76
AfriNIC Region origin ASes announcing only one prefix: 180
AfriNIC Region transit ASes present in the Internet Routing Table: 169
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 209
Number of AfriNIC addresses announced to Internet: 78707968
Equivalent to 4 /8s, 176 /16s and 253 /24s
Percentage of available AfriNIC address space announced: 78.2
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 5556 4192 76 China Education and Research
7545 3334 356 220 TPG Telecom Limited
4766 3170 11144 1123 Korea Telecom
17974 2946 914 96 PT Telekomunikasi Indonesia
9829 2459 1467 464 National Internet Backbone
4755 2096 432 243 TATA Communications formerly
9808 1940 8717 30 Guangdong Mobile Communicatio
4808 1659 2299 549 CNCGROUP IP network China169
9583 1513 122 558 Sify Limited
38197 1497 93 215 Sun Network (Hong Kong) Limit
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 3242 2947 138 Cox Communications Inc.
6389 2299 3671 41 BellSouth.net Inc.
18566 2195 394 275 MegaPath Corporation
20115 1921 1937 404 Charter Communications
30036 1696 337 401 Mediacom Communications Corp
6983 1689 849 232 EarthLink, Inc.
209 1669 4968 770 Qwest Communications Company,
4323 1517 985 376 tw telecom holdings, inc.
701 1296 10718 704 MCI Communications Services,
11492 1290 236 586 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 2901 151 11 SaudiNet, Saudi Telecom Compa
20940 2557 985 1837 Akamai International B.V.
34984 1965 326 358 TELLCOM ILETISIM HIZMETLERI A
12479 1221 997 83 France Telecom Espana SA
8551 1203 376 55 Bezeq International-Ltd
6849 1148 355 21 JSC "Ukrtelecom"
13188 1078 98 65 TOV "Bank-Inform"
8402 1065 544 15 OJSC "Vimpelcom"
31148 1027 47 45 Freenet Ltd.
6830 890 2719 463 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 3477 541 152 Telmex Colombia S.A.
8151 2259 3411 563 Uninet S.A. de C.V.
7303 1510 940 234 Telecom Argentina S.A.
6503 1477 437 55 Axtel, S.A.B. de C.V.
11830 1477 368 52 Instituto Costarricense de El
6147 1160 377 27 Telefonica del Peru S.A.A.
26615 1005 2325 34 Tim Celular S.A.
3816 999 478 186 COLOMBIA TELECOMUNICACIONES S
7738 994 1882 40 Telemar Norte Leste S.A.
11172 907 125 77 Alestra, S. de R.L. de C.V.
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 1082 402 44 Link Egypt (Link.NET)
37611 650 48 2 Afrihost-Brevis Computer Serv
36903 626 315 103 Office National des Postes et
36992 509 1359 27 ETISALAT MISR
8452 490 1472 15 TE-AS
37492 395 234 68 Orange Tunisie
29571 301 37 13 Cote d'Ivoire Telecom
24835 294 466 14 Vodafone Data
15399 284 35 10 Wananchi Group (Kenya) Limite
2018 257 327 74 TENET (The UNINET Project)
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 5556 4192 76 China Education and Research
10620 3477 541 152 Telmex Colombia S.A.
7545 3334 356 220 TPG Telecom Limited
22773 3242 2947 138 Cox Communications Inc.
4766 3170 11144 1123 Korea Telecom
17974 2946 914 96 PT Telekomunikasi Indonesia
39891 2901 151 11 SaudiNet, Saudi Telecom Compa
20940 2557 985 1837 Akamai International B.V.
9829 2459 1467 464 National Internet Backbone
6389 2299 3671 41 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 3477 3325 Telmex Colombia S.A.
7545 3334 3114 TPG Telecom Limited
22773 3242 3104 Cox Communications Inc.
39891 2901 2890 SaudiNet, Saudi Telecom Compa
17974 2946 2850 PT Telekomunikasi Indonesia
6389 2299 2258 BellSouth.net Inc.
4766 3170 2047 Korea Telecom
9829 2459 1995 National Internet Backbone
18566 2195 1920 MegaPath Corporation
9808 1940 1910 Guangdong Mobile Communicatio
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65001 PRIVATE 5.143.176.0/20 15468 OJSC Rostelecom
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
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
27205 UNALLOCATED 8.38.20.0/24 32787 Prolexic Technologie
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<<
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<<
41.73.7.0/24 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 /12:266
/13:511 /14:1035 /15:1761 /16:13039 /17:7614 /18:12699
/19:25925 /20:37931 /21:39674 /22:65485 /23:57409 /24:328597
/25:556 /26:598 /27:420 /28:46 /29:33 /30:14
/31:1 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
39891 2664 2901 SaudiNet, Saudi Telecom Compa
22773 2471 3242 Cox Communications Inc.
18566 2097 2195 MegaPath Corporation
30036 1511 1696 Mediacom Communications Corp
6389 1477 2299 BellSouth.net Inc.
10620 1373 3477 Telmex Colombia S.A.
6983 1338 1689 EarthLink, Inc.
34984 1249 1965 TELLCOM ILETISIM HIZMETLERI A
11492 1193 1290 CABLE ONE, INC.
6849 968 1148 JSC "Ukrtelecom"
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1584 2:746 4:20 5:2066 6:31 8:958
12:1781 13:39 14:1695 15:45 16:2 17:84
18:90 20:48 22:1 23:1495 24:1775 27:2278
31:1771 32:59 33:2 34:2 35:5 36:287
37:2305 38:1219 39:25 40:91 41:2867 42:395
43:1738 44:43 45:1896 46:2494 47:77 49:1174
50:868 51:33 52:188 54:329 55:5 56:7
57:42 58:1538 59:874 60:343 61:1825 62:1509
63:1922 64:4452 65:2164 66:4248 67:2153 68:1089
69:3291 70:1103 71:476 72:1989 74:2547 75:344
76:345 77:1382 78:1248 79:820 80:1276 81:1338
82:945 83:700 84:824 85:1611 86:473 87:1086
88:561 89:1993 90:174 91:6047 92:896 93:2331
94:2332 95:2309 96:486 97:359 98:935 99:46
100:75 101:1047 103:10824 104:2415 105:124 106:400
107:1175 108:671 109:2191 110:1256 111:1651 112:1006
113:1143 114:1052 115:1615 116:1578 117:1429 118:2054
119:1624 120:934 121:1178 122:2177 123:2009 124:1569
125:1726 128:719 129:419 130:412 131:1326 132:622
133:176 134:454 135:127 136:374 137:353 138:1709
139:277 140:543 141:458 142:638 143:939 144:688
145:160 146:873 147:608 148:1481 149:508 150:649
151:882 152:618 153:281 154:623 155:938 156:499
157:432 158:337 159:1119 160:484 161:709 162:2322
163:546 164:900 165:1047 166:320 167:1148 168:1849
169:660 170:1578 171:263 172:561 173:1638 174:743
175:723 176:1740 177:3986 178:2208 179:1137 180:2060
181:1789 182:1850 183:951 184:800 185:6434 186:2990
187:2119 188:2125 189:1708 190:7749 191:1238 192:8937
193:5740 194:4389 195:3770 196:1710 197:1073 198:5549
199:5699 200:7010 201:3766 202:10115 203:9645 204:4511
205:2732 206:2981 207:3120 208:4049 209:3861 210:3877
211:2053 212:2696 213:2232 214:856 215:70 216:5782
217:1947 218:797 219:607 220:1683 221:869 222:665
223:1222
End of report
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