Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri May 15 18:12:06 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 16 May, 2015
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 544597
Prefixes after maximum aggregation (per Origin AS): 207309
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 265266
Total ASes present in the Internet Routing Table: 50345
Prefixes per ASN: 10.82
Origin-only ASes present in the Internet Routing Table: 36669
Origin ASes announcing only one prefix: 16315
Transit ASes present in the Internet Routing Table: 6314
Transit-only ASes present in the Internet Routing Table: 171
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 44
Max AS path prepend of ASN ( 55944) 41
Prefixes from unregistered ASNs in the Routing Table: 1137
Unregistered ASNs in the Routing Table: 404
Number of 32-bit ASNs allocated by the RIRs: 9483
Number of 32-bit ASNs visible in the Routing Table: 7362
Prefixes from 32-bit ASNs in the Routing Table: 26788
Number of bogon 32-bit ASNs visible in the Routing Table: 8
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 381
Number of addresses announced to Internet: 2756729056
Equivalent to 164 /8s, 80 /16s and 88 /24s
Percentage of available address space announced: 74.5
Percentage of allocated address space announced: 74.5
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: 183001
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 134278
Total APNIC prefixes after maximum aggregation: 39134
APNIC Deaggregation factor: 3.43
Prefixes being announced from the APNIC address blocks: 140442
Unique aggregates announced from the APNIC address blocks: 57068
APNIC Region origin ASes present in the Internet Routing Table: 5046
APNIC Prefixes per ASN: 27.83
APNIC Region origin ASes announcing only one prefix: 1213
APNIC Region transit ASes present in the Internet Routing Table: 881
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: 1436
Number of APNIC addresses announced to Internet: 748187328
Equivalent to 44 /8s, 152 /16s and 110 /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: 178798
Total ARIN prefixes after maximum aggregation: 87957
ARIN Deaggregation factor: 2.03
Prefixes being announced from the ARIN address blocks: 181364
Unique aggregates announced from the ARIN address blocks: 84503
ARIN Region origin ASes present in the Internet Routing Table: 16600
ARIN Prefixes per ASN: 10.93
ARIN Region origin ASes announcing only one prefix: 6118
ARIN Region transit ASes present in the Internet Routing Table: 1726
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: 441
Number of ARIN addresses announced to Internet: 1080161056
Equivalent to 64 /8s, 97 /16s and 243 /24s
Percentage of available ARIN address space announced: 57.1
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, 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: 132181
Total RIPE prefixes after maximum aggregation: 65857
RIPE Deaggregation factor: 2.01
Prefixes being announced from the RIPE address blocks: 138555
Unique aggregates announced from the RIPE address blocks: 85570
RIPE Region origin ASes present in the Internet Routing Table: 17964
RIPE Prefixes per ASN: 7.71
RIPE Region origin ASes announcing only one prefix: 8157
RIPE Region transit ASes present in the Internet Routing Table: 2964
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: 3695
Number of RIPE addresses announced to Internet: 694796544
Equivalent to 41 /8s, 105 /16s and 193 /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: 59651
Total LACNIC prefixes after maximum aggregation: 11273
LACNIC Deaggregation factor: 5.29
Prefixes being announced from the LACNIC address blocks: 69921
Unique aggregates announced from the LACNIC address blocks: 32620
LACNIC Region origin ASes present in the Internet Routing Table: 2438
LACNIC Prefixes per ASN: 28.68
LACNIC Region origin ASes announcing only one prefix: 628
LACNIC Region transit ASes present in the Internet Routing Table: 500
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: 1677
Number of LACNIC addresses announced to Internet: 168058368
Equivalent to 10 /8s, 4 /16s and 94 /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: 12727
Total AfriNIC prefixes after maximum aggregation: 3044
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 13934
Unique aggregates announced from the AfriNIC address blocks: 5177
AfriNIC Region origin ASes present in the Internet Routing Table: 734
AfriNIC Prefixes per ASN: 18.98
AfriNIC Region origin ASes announcing only one prefix: 199
AfriNIC Region transit ASes present in the Internet Routing Table: 162
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: 113
Number of AfriNIC addresses announced to Internet: 65147392
Equivalent to 3 /8s, 226 /16s and 18 /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 2928 11557 913 Korea Telecom
17974 2770 904 81 PT Telekomunikasi Indonesia
7545 2588 336 130 TPG Telecom Limited
4755 2019 423 218 TATA Communications formerly
4538 1935 4190 72 China Education and Research
9829 1656 1326 39 National Internet Backbone
9808 1574 8717 28 Guangdong Mobile Communicatio
4808 1427 2241 453 CNCGROUP IP network China169
9583 1417 118 578 Sify Limited
9498 1337 335 100 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 2798 3688 51 BellSouth.net Inc.
3356 2568 10686 493 Level 3 Communications, Inc.
18566 2042 379 185 MegaPath Corporation
20115 1880 1850 430 Charter Communications
6983 1750 866 246 EarthLink, Inc.
4323 1610 1022 410 tw telecom holdings, inc.
30036 1536 314 486 Mediacom Communications Corp
701 1391 11290 680 MCI Communications Services,
22561 1358 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 2473 132 7 SaudiNet, Saudi Telecom Compa
34984 1987 304 353 TELLCOM ILETISIM HIZMETLERI A
20940 1859 726 1364 Akamai International B.V.
6849 1213 356 24 JSC "Ukrtelecom"
8402 1051 544 15 OJSC "Vimpelcom"
31148 1047 45 27 Freenet Ltd.
13188 1040 97 70 TOV "Bank-Inform"
12479 927 867 76 France Telecom Espana SA
6830 907 2693 466 Liberty Global Operations B.V
8551 885 373 48 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 3222 526 191 Telmex Colombia S.A.
28573 2302 2169 117 NET Serviços de Comunicação S
7303 1662 1045 243 Telecom Argentina S.A.
6147 1632 374 30 Telefonica del Peru S.A.A.
8151 1629 3235 465 Uninet S.A. de C.V.
6503 1250 421 54 Axtel, S.A.B. de C.V.
26615 1052 2325 35 Tim Celular S.A.
7738 999 1882 41 Telemar Norte Leste S.A.
3816 921 422 155 COLOMBIA TELECOMUNICACIONES S
18881 869 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 1632 958 13 TE-AS
24863 900 280 26 Link Egypt (Link.NET)
36903 504 254 98 Office National des Postes et
36992 419 1229 32 ETISALAT MISR
37492 303 171 72 Orange Tunisie
24835 301 146 13 Vodafone Data
3741 250 857 208 Internet Solutions
29571 241 21 12 Cote d'Ivoire Telecom
36947 202 807 13 Telecom Algeria
37054 200 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 3222 526 191 Telmex Colombia S.A.
22773 3031 2955 140 Cox Communications Inc.
4766 2928 11557 913 Korea Telecom
6389 2798 3688 51 BellSouth.net Inc.
17974 2770 904 81 PT Telekomunikasi Indonesia
7545 2588 336 130 TPG Telecom Limited
3356 2568 10686 493 Level 3 Communications, Inc.
39891 2473 132 7 SaudiNet, Saudi Telecom Compa
28573 2302 2169 117 NET Serviços de Comunicação S
18566 2042 379 185 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 2798 2747 BellSouth.net Inc.
17974 2770 2689 PT Telekomunikasi Indonesia
39891 2473 2466 SaudiNet, Saudi Telecom Compa
7545 2588 2458 TPG Telecom Limited
28573 2302 2185 NET Serviços de Comunicação S
3356 2568 2075 Level 3 Communications, Inc.
4766 2928 2015 Korea Telecom
4538 1935 1863 China Education and Research
18566 2042 1857 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 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
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
100.100.100.0/24 48159 Telecommunication Infrastruct
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
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 /8:17 /9:12 /10:34 /11:94 /12:264
/13:504 /14:1005 /15:1714 /16:12936 /17:7221 /18:12313
/19:25437 /20:35970 /21:38561 /22:59301 /23:51903 /24:294315
/25:1100 /26:1132 /27:718 /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 2473 SaudiNet, Saudi Telecom Compa
22773 2243 3031 Cox Communications Inc.
18566 1996 2042 MegaPath Corporation
6389 1641 2798 BellSouth.net Inc.
6983 1396 1750 EarthLink, Inc.
30036 1374 1536 Mediacom Communications Corp
34984 1305 1987 TELLCOM ILETISIM HIZMETLERI A
6147 1183 1632 Telefonica del Peru S.A.A.
10620 1135 3222 Telmex Colombia S.A.
11492 1109 1185 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1478 2:680 4:93 5:1798 6:24 8:1418
11:1 12:1822 13:10 14:1324 15:17 16:2
17:43 18:22 20:48 23:1225 24:1696 27:1867
31:1589 32:38 33:2 34:4 35:3 36:117
37:1908 38:1018 39:6 40:251 41:3007 42:284
43:1274 44:26 45:572 46:2191 47:40 49:855
50:805 52:12 54:73 55:7 56:8 57:39
58:1286 59:714 60:475 61:1752 62:1326 63:1915
64:4409 65:2250 66:4070 67:2066 68:1055 69:3265
70:980 71:448 72:1961 74:2655 75:337 76:422
77:1452 78:1186 79:803 80:1335 81:1338 82:812
83:696 84:717 85:1372 86:393 87:1044 88:514
89:1831 90:151 91:5977 92:837 93:2220 94:2016
95:2134 96:428 97:354 98:1053 99:49 100:70
101:830 103:7392 104:1778 105:63 106:244 107:953
108:627 109:2044 110:1102 111:1487 112:800 113:1077
114:821 115:1281 116:1359 117:1057 118:1804 119:1452
120:448 121:1080 122:2138 123:1809 124:1511 125:1583
128:647 129:386 130:396 131:1182 132:490 133:174
134:414 135:107 136:325 137:309 138:717 139:147
140:236 141:444 142:671 143:504 144:569 145:115
146:702 147:585 148:1131 149:402 150:562 151:597
152:494 153:243 154:487 155:859 156:406 157:463
158:319 159:1005 160:379 161:659 162:1927 163:423
164:669 165:691 166:307 167:828 168:1294 169:169
170:1462 171:245 172:45 173:1518 174:710 175:689
176:1308 177:3766 178:2161 179:960 180:1963 181:1689
182:1769 183:616 184:740 185:3481 186:2654 187:1739
188:2040 189:1575 190:7707 191:974 192:8332 193:5601
194:4136 195:3641 196:1641 197:1030 198:5536 199:5544
200:6661 201:3092 202:9437 203:9130 204:4668 205:2829
206:3086 207:2951 208:3966 209:3963 210:3526 211:1849
212:2526 213:2337 214:869 215:72 216:5662 217:1821
218:697 219:463 220:1452 221:785 222:476 223:686
End of report
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