Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 10 18:12:17 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 11 Apr, 2015
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 539454
Prefixes after maximum aggregation (per Origin AS): 206144
Deaggregation factor: 2.62
Unique aggregates announced (without unneeded subnets): 262960
Total ASes present in the Internet Routing Table: 49958
Prefixes per ASN: 10.80
Origin-only ASes present in the Internet Routing Table: 36555
Origin ASes announcing only one prefix: 16293
Transit ASes present in the Internet Routing Table: 6314
Transit-only ASes present in the Internet Routing Table: 179
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 45
Max AS path prepend of ASN ( 55944) 41
Prefixes from unregistered ASNs in the Routing Table: 1353
Unregistered ASNs in the Routing Table: 417
Number of 32-bit ASNs allocated by the RIRs: 9117
Number of 32-bit ASNs visible in the Routing Table: 7089
Prefixes from 32-bit ASNs in the Routing Table: 25587
Number of bogon 32-bit ASNs visible in the Routing Table: 105
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 390
Number of addresses announced to Internet: 2740902052
Equivalent to 163 /8s, 94 /16s and 216 /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: 181799
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 133070
Total APNIC prefixes after maximum aggregation: 38773
APNIC Deaggregation factor: 3.43
Prefixes being announced from the APNIC address blocks: 138798
Unique aggregates announced from the APNIC address blocks: 56343
APNIC Region origin ASes present in the Internet Routing Table: 5036
APNIC Prefixes per ASN: 27.56
APNIC Region origin ASes announcing only one prefix: 1209
APNIC Region transit ASes present in the Internet Routing Table: 878
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 45
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1377
Number of APNIC addresses announced to Internet: 747573760
Equivalent to 44 /8s, 143 /16s and 18 /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: 178026
Total ARIN prefixes after maximum aggregation: 87781
ARIN Deaggregation factor: 2.03
Prefixes being announced from the ARIN address blocks: 180419
Unique aggregates announced from the ARIN address blocks: 84337
ARIN Region origin ASes present in the Internet Routing Table: 16534
ARIN Prefixes per ASN: 10.91
ARIN Region origin ASes announcing only one prefix: 6092
ARIN Region transit ASes present in the Internet Routing Table: 1719
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: 397
Number of ARIN addresses announced to Internet: 1065408288
Equivalent to 63 /8s, 128 /16s and 215 /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, 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: 130827
Total RIPE prefixes after maximum aggregation: 65369
RIPE Deaggregation factor: 2.00
Prefixes being announced from the RIPE address blocks: 137031
Unique aggregates announced from the RIPE address blocks: 84585
RIPE Region origin ASes present in the Internet Routing Table: 17930
RIPE Prefixes per ASN: 7.64
RIPE Region origin ASes announcing only one prefix: 8169
RIPE Region transit ASes present in the Internet Routing Table: 2980
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: 3590
Number of RIPE addresses announced to Internet: 694648964
Equivalent to 41 /8s, 103 /16s and 128 /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: 59121
Total LACNIC prefixes after maximum aggregation: 11162
LACNIC Deaggregation factor: 5.30
Prefixes being announced from the LACNIC address blocks: 68994
Unique aggregates announced from the LACNIC address blocks: 32241
LACNIC Region origin ASes present in the Internet Routing Table: 2425
LACNIC Prefixes per ASN: 28.45
LACNIC Region origin ASes announcing only one prefix: 626
LACNIC Region transit ASes present in the Internet Routing Table: 494
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: 1618
Number of LACNIC addresses announced to Internet: 168052992
Equivalent to 10 /8s, 4 /16s and 73 /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: 12658
Total AfriNIC prefixes after maximum aggregation: 3015
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 13822
Unique aggregates announced from the AfriNIC address blocks: 5100
AfriNIC Region origin ASes present in the Internet Routing Table: 735
AfriNIC Prefixes per ASN: 18.81
AfriNIC Region origin ASes announcing only one prefix: 197
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: 107
Number of AfriNIC addresses announced to Internet: 64668160
Equivalent to 3 /8s, 218 /16s and 194 /24s
Percentage of available AfriNIC address space announced: 64.2
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
4766 2916 11557 912 Korea Telecom
17974 2796 904 78 PT Telekomunikasi Indonesia
7545 2534 336 127 TPG Telecom Limited
4755 2002 422 212 TATA Communications formerly
4538 1759 4190 71 China Education and Research
9829 1670 1326 39 National Internet Backbone
9808 1553 8717 28 Guangdong Mobile Communicatio
4808 1454 2259 450 CNCGROUP IP network China169
9583 1404 116 573 Sify Limited
9498 1314 334 94 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 3019 2956 143 Cox Communications Inc.
6389 2881 3688 51 BellSouth.net Inc.
3356 2549 10683 483 Level 3 Communications, Inc.
18566 2040 379 183 MegaPath Corporation
20115 1854 1833 428 Charter Communications
6983 1753 866 245 EarthLink, Inc.
4323 1616 1020 407 tw telecom holdings, inc.
30036 1500 308 517 Mediacom Communications Corp
701 1411 11277 695 MCI Communications Services,
22561 1337 412 242 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 1980 304 356 TELLCOM ILETISIM HIZMETLERI A
20940 1763 689 1297 Akamai International B.V.
6849 1212 356 24 JSC "Ukrtelecom"
8402 1168 544 15 OJSC "Vimpelcom"
31148 1046 45 21 Freenet Ltd.
13188 1030 96 71 TOV "Bank-Inform"
12479 901 801 79 France Telecom Espana SA
8551 885 373 48 Bezeq International-Ltd
6830 851 2341 451 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 3180 518 199 Telmex Colombia S.A.
28573 2329 2175 118 NET Serviços de Comunicação S
7303 1709 1102 243 Telecom Argentina S.A.
6147 1602 374 30 Telefonica del Peru S.A.A.
8151 1575 3173 458 Uninet S.A. de C.V.
6503 1217 421 57 Axtel, S.A.B. de C.V.
7738 999 1882 41 Telemar Norte Leste S.A.
26615 980 2325 35 Tim Celular S.A.
3816 921 418 154 COLOMBIA TELECOMUNICACIONES S
18881 867 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 1705 958 13 TE-AS
24863 965 284 27 Link Egypt (Link.NET)
36903 479 241 90 Office National des Postes et
36992 417 1229 32 ETISALAT MISR
24835 300 144 9 Vodafone Data
3741 249 857 208 Internet Solutions
29571 231 21 12 Cote d'Ivoire Telecom
36947 198 807 13 Telecom Algeria
37492 177 127 67 Orange Tunisie
15706 172 32 6 Sudatel (Sudan Telecom Co. Lt
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 3180 518 199 Telmex Colombia S.A.
22773 3019 2956 143 Cox Communications Inc.
4766 2916 11557 912 Korea Telecom
6389 2881 3688 51 BellSouth.net Inc.
17974 2796 904 78 PT Telekomunikasi Indonesia
3356 2549 10683 483 Level 3 Communications, Inc.
7545 2534 336 127 TPG Telecom Limited
39891 2472 128 6 SaudiNet, Saudi Telecom Compa
28573 2329 2175 118 NET Serviços de Comunicação S
18566 2040 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 3019 2876 Cox Communications Inc.
6389 2881 2830 BellSouth.net Inc.
17974 2796 2718 PT Telekomunikasi Indonesia
39891 2472 2466 SaudiNet, Saudi Telecom Compa
7545 2534 2407 TPG Telecom Limited
28573 2329 2211 NET Serviços de Comunicação S
3356 2549 2066 Level 3 Communications, Inc.
4766 2916 2004 Korea Telecom
18566 2040 1857 MegaPath Corporation
4755 2002 1790 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 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
36270 UNALLOCATED 8.24.66.0/24 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
23.226.112.0/20 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 /11:93 /12:262
/13:509 /14:999 /15:1719 /16:12947 /17:7202 /18:12225
/19:25320 /20:35869 /21:38548 /22:58609 /23:51179 /24:290956
/25:1124 /26:1124 /27:661 /28:14 /29:11 /30:8
/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 2228 3019 Cox Communications Inc.
18566 1995 2040 MegaPath Corporation
6389 1671 2881 BellSouth.net Inc.
6983 1400 1753 EarthLink, Inc.
30036 1346 1500 Mediacom Communications Corp
34984 1287 1980 TELLCOM ILETISIM HIZMETLERI A
6147 1149 1602 Telefonica del Peru S.A.A.
10620 1123 3180 Telmex Colombia S.A.
11492 1103 1168 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1480 2:653 4:93 5:1751 6:23 8:1413
12:1827 13:9 14:1304 15:17 16:2 17:44
18:21 20:48 23:1201 24:1708 27:1853 31:1521
32:38 33:2 34:5 35:3 36:116 37:1896
38:1012 39:9 40:246 41:2981 42:262 43:1239
44:26 45:377 46:2116 47:38 49:847 50:794
52:12 54:72 55:4 56:8 57:36 58:1216
59:682 60:467 61:1749 62:1338 63:1908 64:4458
65:2257 66:4129 67:2062 68:1074 69:3265 70:961
71:441 72:1959 74:2648 75:321 76:406 77:1455
78:1204 79:798 80:1315 81:1355 82:820 83:686
84:678 85:1374 86:376 87:1072 88:511 89:1808
90:151 91:6001 92:825 93:2189 94:1970 95:2083
96:430 97:349 98:1065 99:47 100:67 101:819
103:7140 104:1497 105:61 106:226 107:929 108:620
109:2020 110:1079 111:1489 112:773 113:1067 114:809
115:1260 116:1353 117:1002 118:1721 119:1447 120:448
121:1036 122:2192 123:1736 124:1498 125:1585 128:566
129:380 130:387 131:1174 132:492 133:173 134:419
135:109 136:304 137:314 138:596 139:161 140:240
141:415 142:669 143:503 144:569 145:108 146:715
147:590 148:1111 149:431 150:552 151:604 152:492
153:240 154:444 155:745 156:407 157:335 158:319
159:979 160:373 161:642 162:1956 163:424 164:664
165:687 166:287 167:806 168:1279 169:161 170:1450
171:241 172:41 173:1548 174:696 175:664 176:1369
177:3773 178:2068 179:893 180:1931 181:1653 182:1729
183:618 184:738 185:3243 186:2643 187:1797 188:2017
189:1570 190:7628 191:920 192:8242 193:5592 194:4114
195:3668 196:1705 197:1093 198:5527 199:5525 200:6522
201:3016 202:9464 203:9078 204:4691 205:2834 206:3089
207:3010 208:3942 209:3975 210:3516 211:1863 212:2466
213:2287 214:855 215:71 216:5600 217:1800 218:675
219:453 220:1436 221:788 222:464 223:659
End of report
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