Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri May 8 18:12:03 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 09 May, 2015
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 543336
Prefixes after maximum aggregation (per Origin AS): 207090
Deaggregation factor: 2.62
Unique aggregates announced (without unneeded subnets): 264470
Total ASes present in the Internet Routing Table: 50256
Prefixes per ASN: 10.81
Origin-only ASes present in the Internet Routing Table: 36631
Origin ASes announcing only one prefix: 16305
Transit ASes present in the Internet Routing Table: 6324
Transit-only ASes present in the Internet Routing Table: 178
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 44
Max AS path prepend of ASN ( 55944) 41
Prefixes from unregistered ASNs in the Routing Table: 1204
Unregistered ASNs in the Routing Table: 416
Number of 32-bit ASNs allocated by the RIRs: 9411
Number of 32-bit ASNs visible in the Routing Table: 7301
Prefixes from 32-bit ASNs in the Routing Table: 26590
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 387
Number of addresses announced to Internet: 2741486624
Equivalent to 163 /8s, 103 /16s and 196 /24s
Percentage of available address space announced: 74.0
Percentage of allocated address space announced: 74.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 97.3
Total number of prefixes smaller than registry allocations: 182274
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 134135
Total APNIC prefixes after maximum aggregation: 39069
APNIC Deaggregation factor: 3.43
Prefixes being announced from the APNIC address blocks: 140281
Unique aggregates announced from the APNIC address blocks: 56940
APNIC Region origin ASes present in the Internet Routing Table: 5035
APNIC Prefixes per ASN: 27.86
APNIC Region origin ASes announcing only one prefix: 1207
APNIC Region transit ASes present in the Internet Routing Table: 879
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 44
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1422
Number of APNIC addresses announced to Internet: 747744256
Equivalent to 44 /8s, 145 /16s and 172 /24s
Percentage of available APNIC address space announced: 87.4
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: 178748
Total ARIN prefixes after maximum aggregation: 87933
ARIN Deaggregation factor: 2.03
Prefixes being announced from the ARIN address blocks: 181253
Unique aggregates announced from the ARIN address blocks: 84396
ARIN Region origin ASes present in the Internet Routing Table: 16587
ARIN Prefixes per ASN: 10.93
ARIN Region origin ASes announcing only one prefix: 6111
ARIN Region transit ASes present in the Internet Routing Table: 1732
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 428
Number of ARIN addresses announced to Internet: 1065588512
Equivalent to 63 /8s, 131 /16s and 151 /24s
Percentage of available ARIN address space announced: 56.4
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: 131752
Total RIPE prefixes after maximum aggregation: 65746
RIPE Deaggregation factor: 2.00
Prefixes being announced from the RIPE address blocks: 138163
Unique aggregates announced from the RIPE address blocks: 85193
RIPE Region origin ASes present in the Internet Routing Table: 17949
RIPE Prefixes per ASN: 7.70
RIPE Region origin ASes announcing only one prefix: 8153
RIPE Region transit ASes present in the Internet Routing Table: 2966
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 3677
Number of RIPE addresses announced to Internet: 694977792
Equivalent to 41 /8s, 108 /16s and 133 /24s
Percentage of available RIPE address space announced: 101.0
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: 59063
Total LACNIC prefixes after maximum aggregation: 11226
LACNIC Deaggregation factor: 5.26
Prefixes being announced from the LACNIC address blocks: 69131
Unique aggregates announced from the LACNIC address blocks: 32433
LACNIC Region origin ASes present in the Internet Routing Table: 2436
LACNIC Prefixes per ASN: 28.38
LACNIC Region origin ASes announcing only one prefix: 631
LACNIC Region transit ASes present in the Internet Routing Table: 502
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1663
Number of LACNIC addresses announced to Internet: 167684864
Equivalent to 9 /8s, 254 /16s and 171 /24s
Percentage of available LACNIC address space announced: 99.9
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: 12878
Total AfriNIC prefixes after maximum aggregation: 3071
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 14121
Unique aggregates announced from the AfriNIC address blocks: 5174
AfriNIC Region origin ASes present in the Internet Routing Table: 739
AfriNIC Prefixes per ASN: 19.11
AfriNIC Region origin ASes announcing only one prefix: 203
AfriNIC Region transit ASes present in the Internet Routing Table: 161
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 111
Number of AfriNIC addresses announced to Internet: 65175552
Equivalent to 3 /8s, 226 /16s and 128 /24s
Percentage of available AfriNIC address space announced: 64.7
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 2927 11557 912 Korea Telecom
17974 2766 904 81 PT Telekomunikasi Indonesia
7545 2578 336 129 TPG Telecom Limited
4755 2014 422 215 TATA Communications formerly
4538 1908 4190 72 China Education and Research
9829 1637 1322 58 National Internet Backbone
9808 1574 8717 28 Guangdong Mobile Communicatio
4808 1428 2241 455 CNCGROUP IP network China169
9583 1416 117 577 Sify Limited
9498 1332 334 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 3031 2955 140 Cox Communications Inc.
6389 2801 3688 51 BellSouth.net Inc.
3356 2553 10684 479 Level 3 Communications, Inc.
18566 2036 378 181 MegaPath Corporation
20115 1879 1846 429 Charter Communications
6983 1752 866 246 EarthLink, Inc.
4323 1615 1022 410 tw telecom holdings, inc.
30036 1531 311 493 Mediacom Communications Corp
701 1390 11290 679 MCI Communications Services,
22561 1355 413 248 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 1967 304 367 TELLCOM ILETISIM HIZMETLERI A
20940 1826 708 1338 Akamai International B.V.
6849 1213 356 24 JSC "Ukrtelecom"
31148 1049 45 23 Freenet Ltd.
13188 1035 96 68 TOV "Bank-Inform"
8402 1032 544 15 OJSC "Vimpelcom"
12479 925 867 80 France Telecom Espana SA
8551 885 373 48 Bezeq International-Ltd
9198 857 346 30 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 3226 527 184 Telmex Colombia S.A.
28573 2319 2169 117 NET Serviços de Comunicação S
7303 1660 1044 242 Telecom Argentina S.A.
8151 1602 3206 454 Uninet S.A. de C.V.
6503 1250 421 54 Axtel, S.A.B. de C.V.
6147 1222 374 30 Telefonica del Peru S.A.A.
7738 999 1882 41 Telemar Norte Leste S.A.
26615 964 2325 35 Tim Celular S.A.
3816 920 418 155 COLOMBIA TELECOMUNICACIONES S
18881 868 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 1805 958 13 TE-AS
24863 960 284 27 Link Egypt (Link.NET)
36903 466 235 119 Office National des Postes et
36992 419 1229 32 ETISALAT MISR
37492 302 155 72 Orange Tunisie
24835 300 144 9 Vodafone Data
3741 250 857 208 Internet Solutions
29571 235 21 12 Cote d'Ivoire Telecom
36947 202 807 13 Telecom Algeria
37054 181 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 3226 527 184 Telmex Colombia S.A.
22773 3031 2955 140 Cox Communications Inc.
4766 2927 11557 912 Korea Telecom
6389 2801 3688 51 BellSouth.net Inc.
17974 2766 904 81 PT Telekomunikasi Indonesia
7545 2578 336 129 TPG Telecom Limited
3356 2553 10684 479 Level 3 Communications, Inc.
39891 2472 128 6 SaudiNet, Saudi Telecom Compa
28573 2319 2169 117 NET Serviços de Comunicação S
18566 2036 378 181 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 3031 2891 Cox Communications Inc.
6389 2801 2750 BellSouth.net Inc.
17974 2766 2685 PT Telekomunikasi Indonesia
39891 2472 2466 SaudiNet, Saudi Telecom Compa
7545 2578 2449 TPG Telecom Limited
28573 2319 2202 NET Serviços de Comunicação S
3356 2553 2074 Level 3 Communications, Inc.
4766 2927 2015 Korea Telecom
18566 2036 1855 MegaPath Corporation
4538 1908 1836 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
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
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<<
41.73.10.0/24 37004 >>UNKNOWN<<
41.73.11.0/24 37004 >>UNKNOWN<<
41.73.12.0/24 37004 >>UNKNOWN<<
41.73.13.0/24 37004 >>UNKNOWN<<
41.73.15.0/24 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 /9:12 /10:34 /11:94 /12:264
/13:505 /14:1006 /15:1713 /16:12969 /17:7208 /18:12292
/19:25282 /20:35936 /21:38557 /22:59396 /23:51660 /24:293364
/25:1134 /26:1132 /27:716 /28:14 /29:12 /30:7
/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 2243 3031 Cox Communications Inc.
18566 1992 2036 MegaPath Corporation
6389 1644 2801 BellSouth.net Inc.
6983 1398 1752 EarthLink, Inc.
30036 1371 1531 Mediacom Communications Corp
34984 1287 1967 TELLCOM ILETISIM HIZMETLERI A
10620 1138 3226 Telmex Colombia S.A.
11492 1113 1189 CABLE ONE, INC.
8452 1106 1805 TE-AS
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1483 2:675 4:94 5:1793 6:24 8:1418
11:1 12:1822 13:10 14:1331 15:17 16:2
17:43 18:21 20:48 23:1217 24:1705 27:1891
31:1562 32:38 33:2 34:5 35:3 36:118
37:1908 38:1027 39:5 40:251 41:3075 42:322
43:1261 44:26 45:504 46:2161 47:40 49:902
50:802 52:12 54:73 55:6 56:8 57:36
58:1276 59:717 60:473 61:1750 62:1332 63:1914
64:4406 65:2253 66:4043 67:2072 68:1052 69:3257
70:981 71:448 72:1954 74:2649 75:335 76:423
77:1413 78:1182 79:796 80:1334 81:1349 82:810
83:691 84:716 85:1347 86:392 87:1027 88:516
89:1826 90:151 91:5980 92:829 93:2226 94:2044
95:2114 96:429 97:353 98:1055 99:49 100:68
101:822 103:7361 104:1682 105:65 106:244 107:952
108:623 109:2046 110:1095 111:1488 112:794 113:1149
114:817 115:1264 116:1355 117:1055 118:1806 119:1450
120:448 121:1076 122:2141 123:1809 124:1507 125:1579
128:637 129:384 130:398 131:1189 132:488 133:174
134:425 135:107 136:327 137:315 138:687 139:149
140:239 141:442 142:670 143:501 144:565 145:115
146:699 147:590 148:1151 149:432 150:564 151:610
152:494 153:243 154:463 155:848 156:406 157:463
158:320 159:996 160:379 161:652 162:1923 163:419
164:670 165:690 166:304 167:821 168:1293 169:168
170:1471 171:261 172:45 173:1502 174:708 175:680
176:1247 177:3780 178:2155 179:877 180:1930 181:1596
182:1757 183:617 184:734 185:3429 186:2635 187:1742
188:2016 189:1586 190:7486 191:961 192:8315 193:5590
194:4126 195:3621 196:1706 197:1072 198:5549 199:5547
200:6635 201:3018 202:9444 203:9120 204:4678 205:2839
206:3090 207:2973 208:3942 209:3966 210:3536 211:1863
212:2509 213:2323 214:865 215:71 216:5582 217:1820
218:691 219:459 220:1445 221:787 222:478 223:677
End of report
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