[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 24 18:11:28 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 25 Apr, 2015
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 541795
Prefixes after maximum aggregation (per Origin AS): 206788
Deaggregation factor: 2.62
Unique aggregates announced (without unneeded subnets): 264333
Total ASes present in the Internet Routing Table: 50103
Prefixes per ASN: 10.81
Origin-only ASes present in the Internet Routing Table: 36582
Origin ASes announcing only one prefix: 16288
Transit ASes present in the Internet Routing Table: 6337
Transit-only ASes present in the Internet Routing Table: 175
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: 1193
Unregistered ASNs in the Routing Table: 408
Number of 32-bit ASNs allocated by the RIRs: 9255
Number of 32-bit ASNs visible in the Routing Table: 7184
Prefixes from 32-bit ASNs in the Routing Table: 25851
Number of bogon 32-bit ASNs visible in the Routing Table: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 360
Number of addresses announced to Internet: 2739318436
Equivalent to 163 /8s, 70 /16s and 174 /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: 182352
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 133662
Total APNIC prefixes after maximum aggregation: 38993
APNIC Deaggregation factor: 3.43
Prefixes being announced from the APNIC address blocks: 139448
Unique aggregates announced from the APNIC address blocks: 56810
APNIC Region origin ASes present in the Internet Routing Table: 5040
APNIC Prefixes per ASN: 27.67
APNIC Region origin ASes announcing only one prefix: 1205
APNIC Region transit ASes present in the Internet Routing Table: 875
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 44
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1395
Number of APNIC addresses announced to Internet: 747690496
Equivalent to 44 /8s, 144 /16s and 218 /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: 178367
Total ARIN prefixes after maximum aggregation: 87920
ARIN Deaggregation factor: 2.03
Prefixes being announced from the ARIN address blocks: 180796
Unique aggregates announced from the ARIN address blocks: 84833
ARIN Region origin ASes present in the Internet Routing Table: 16559
ARIN Prefixes per ASN: 10.92
ARIN Region origin ASes announcing only one prefix: 6097
ARIN Region transit ASes present in the Internet Routing Table: 1737
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: 409
Number of ARIN addresses announced to Internet: 1065386528
Equivalent to 63 /8s, 128 /16s and 130 /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: 131539
Total RIPE prefixes after maximum aggregation: 65635
RIPE Deaggregation factor: 2.00
Prefixes being announced from the RIPE address blocks: 137820
Unique aggregates announced from the RIPE address blocks: 84964
RIPE Region origin ASes present in the Internet Routing Table: 17952
RIPE Prefixes per ASN: 7.68
RIPE Region origin ASes announcing only one prefix: 8157
RIPE Region transit ASes present in the Internet Routing Table: 2982
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 3634
Number of RIPE addresses announced to Internet: 693611908
Equivalent to 41 /8s, 87 /16s and 173 /24s
Percentage of available RIPE address space announced: 100.8
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: 59469
Total LACNIC prefixes after maximum aggregation: 11181
LACNIC Deaggregation factor: 5.32
Prefixes being announced from the LACNIC address blocks: 69431
Unique aggregates announced from the LACNIC address blocks: 32265
LACNIC Region origin ASes present in the Internet Routing Table: 2426
LACNIC Prefixes per ASN: 28.62
LACNIC Region origin ASes announcing only one prefix: 626
LACNIC Region transit ASes present in the Internet Routing Table: 501
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1638
Number of LACNIC addresses announced to Internet: 167318016
Equivalent to 9 /8s, 249 /16s and 18 /24s
Percentage of available LACNIC address space announced: 99.7
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: 12738
Total AfriNIC prefixes after maximum aggregation: 3015
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 13940
Unique aggregates announced from the AfriNIC address blocks: 5136
AfriNIC Region origin ASes present in the Internet Routing Table: 737
AfriNIC Prefixes per ASN: 18.91
AfriNIC Region origin ASes announcing only one prefix: 203
AfriNIC Region transit ASes present in the Internet Routing Table: 158
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: 108
Number of AfriNIC addresses announced to Internet: 64997120
Equivalent to 3 /8s, 223 /16s and 199 /24s
Percentage of available AfriNIC address space announced: 64.6
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 2923 11557 912 Korea Telecom
17974 2771 904 78 PT Telekomunikasi Indonesia
7545 2374 336 128 TPG Telecom Limited
4755 2012 422 214 TATA Communications formerly
4538 1908 4190 71 China Education and Research
9829 1632 1326 39 National Internet Backbone
9808 1572 8717 28 Guangdong Mobile Communicatio
4808 1442 2244 446 CNCGROUP IP network China169
9583 1409 116 575 Sify Limited
9498 1323 334 95 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 3015 2956 143 Cox Communications Inc.
6389 2832 3688 51 BellSouth.net Inc.
3356 2559 10684 488 Level 3 Communications, Inc.
18566 2040 379 182 MegaPath Corporation
20115 1877 1840 431 Charter Communications
6983 1755 866 245 EarthLink, Inc.
4323 1619 1021 409 tw telecom holdings, inc.
30036 1523 309 496 Mediacom Communications Corp
701 1407 11276 690 MCI Communications Services,
22561 1341 412 243 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 1964 303 366 TELLCOM ILETISIM HIZMETLERI A
20940 1810 702 1338 Akamai International B.V.
6849 1214 356 24 JSC "Ukrtelecom"
8402 1157 544 15 OJSC "Vimpelcom"
31148 1044 45 21 Freenet Ltd.
13188 1038 97 69 TOV "Bank-Inform"
12479 908 864 83 France Telecom Espana SA
8551 886 373 48 Bezeq International-Ltd
6830 853 2344 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 3216 525 183 Telmex Colombia S.A.
28573 2349 2179 119 NET Serviços de Comunicação S
7303 1654 1042 241 Telecom Argentina S.A.
6147 1623 374 30 Telefonica del Peru S.A.A.
8151 1591 3189 454 Uninet S.A. de C.V.
6503 1252 421 57 Axtel, S.A.B. de C.V.
7738 999 1882 41 Telemar Norte Leste S.A.
26615 983 2325 35 Tim Celular S.A.
3816 923 418 154 COLOMBIA TELECOMUNICACIONES S
18881 865 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 1708 958 13 TE-AS
24863 964 284 27 Link Egypt (Link.NET)
36903 493 248 88 Office National des Postes et
36992 417 1229 32 ETISALAT MISR
37492 302 155 72 Orange Tunisie
24835 300 144 9 Vodafone Data
3741 250 857 208 Internet Solutions
29571 231 21 12 Cote d'Ivoire Telecom
37054 199 19 6 Data Telecom Service
36947 198 807 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
10620 3216 525 183 Telmex Colombia S.A.
22773 3015 2956 143 Cox Communications Inc.
4766 2923 11557 912 Korea Telecom
6389 2832 3688 51 BellSouth.net Inc.
17974 2771 904 78 PT Telekomunikasi Indonesia
3356 2559 10684 488 Level 3 Communications, Inc.
39891 2472 128 6 SaudiNet, Saudi Telecom Compa
7545 2374 336 128 TPG Telecom Limited
28573 2349 2179 119 NET Serviços de Comunicação S
18566 2040 379 182 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 3015 2872 Cox Communications Inc.
6389 2832 2781 BellSouth.net Inc.
17974 2771 2693 PT Telekomunikasi Indonesia
39891 2472 2466 SaudiNet, Saudi Telecom Compa
7545 2374 2246 TPG Telecom Limited
28573 2349 2230 NET Serviços de Comunicação S
3356 2559 2071 Level 3 Communications, Inc.
4766 2923 2011 Korea Telecom
18566 2040 1858 MegaPath Corporation
4538 1908 1837 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 /12:263
/13:506 /14:1002 /15:1711 /16:12959 /17:7204 /18:12224
/19:25351 /20:35848 /21:38596 /22:59112 /23:51410 /24:292432
/25:1132 /26:1133 /27:709 /28:14 /29:12 /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 2223 3015 Cox Communications Inc.
18566 1996 2040 MegaPath Corporation
6389 1654 2832 BellSouth.net Inc.
6983 1402 1755 EarthLink, Inc.
30036 1367 1523 Mediacom Communications Corp
34984 1284 1964 TELLCOM ILETISIM HIZMETLERI A
6147 1171 1623 Telefonica del Peru S.A.A.
10620 1133 3216 Telmex Colombia S.A.
11492 1106 1178 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1485 2:678 4:93 5:1758 6:23 8:1420
12:1824 13:10 14:1217 15:17 16:2 17:44
18:21 20:48 23:1210 24:1704 27:1890 31:1528
32:38 33:2 34:5 35:3 36:120 37:1895
38:1019 39:5 40:250 41:2989 42:282 43:1229
44:26 45:462 46:2138 47:39 49:819 50:801
52:12 54:73 55:5 56:8 57:37 58:1276
59:671 60:470 61:1745 62:1333 63:1917 64:4418
65:2249 66:4050 67:2063 68:1053 69:3254 70:956
71:448 72:1955 74:2654 75:324 76:406 77:1458
78:1185 79:797 80:1321 81:1348 82:816 83:688
84:713 85:1362 86:394 87:1066 88:510 89:1830
90:151 91:5990 92:828 93:2219 94:1990 95:2097
96:429 97:354 98:1055 99:49 100:68 101:830
103:7261 104:1597 105:61 106:246 107:940 108:621
109:2038 110:1081 111:1491 112:778 113:1101 114:821
115:1254 116:1329 117:1000 118:1798 119:1447 120:443
121:1045 122:2204 123:1793 124:1510 125:1587 128:532
129:379 130:390 131:1152 132:488 133:174 134:420
135:109 136:325 137:321 138:630 139:152 140:225
141:424 142:661 143:525 144:575 145:115 146:699
147:601 148:1131 149:435 150:573 151:610 152:491
153:242 154:471 155:840 156:407 157:463 158:321
159:995 160:380 161:647 162:1961 163:423 164:673
165:689 166:299 167:808 168:1289 169:164 170:1468
171:241 172:41 173:1531 174:703 175:681 176:1406
177:3747 178:2135 179:889 180:1940 181:1678 182:1746
183:620 184:741 185:3353 186:2707 187:1773 188:2019
189:1574 190:7696 191:937 192:8290 193:5583 194:4127
195:3652 196:1690 197:1054 198:5531 199:5530 200:6634
201:3063 202:9463 203:9100 204:4680 205:2835 206:3085
207:2980 208:3942 209:3958 210:3542 211:1860 212:2470
213:2294 214:862 215:71 216:5554 217:1806 218:685
219:456 220:1412 221:788 222:465 223:670
End of report
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