[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Mar 25 18:10:29 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 26 Mar, 2016
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 587515
Prefixes after maximum aggregation (per Origin AS): 216203
Deaggregation factor: 2.72
Unique aggregates announced (without unneeded subnets): 287784
Total ASes present in the Internet Routing Table: 53221
Prefixes per ASN: 11.04
Origin-only ASes present in the Internet Routing Table: 36607
Origin ASes announcing only one prefix: 15753
Transit ASes present in the Internet Routing Table: 6412
Transit-only ASes present in the Internet Routing Table: 170
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 37
Max AS path prepend of ASN ( 40285) 34
Prefixes from unregistered ASNs in the Routing Table: 958
Unregistered ASNs in the Routing Table: 354
Number of 32-bit ASNs allocated by the RIRs: 13208
Number of 32-bit ASNs visible in the Routing Table: 10202
Prefixes from 32-bit ASNs in the Routing Table: 39714
Number of bogon 32-bit ASNs visible in the Routing Table: 14
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 363
Number of addresses announced to Internet: 2807921668
Equivalent to 167 /8s, 93 /16s and 124 /24s
Percentage of available address space announced: 75.8
Percentage of allocated address space announced: 75.8
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: 191954
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 150519
Total APNIC prefixes after maximum aggregation: 41895
APNIC Deaggregation factor: 3.59
Prefixes being announced from the APNIC address blocks: 160568
Unique aggregates announced from the APNIC address blocks: 65534
APNIC Region origin ASes present in the Internet Routing Table: 5145
APNIC Prefixes per ASN: 31.21
APNIC Region origin ASes announcing only one prefix: 1180
APNIC Region transit ASes present in the Internet Routing Table: 909
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 35
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1945
Number of APNIC addresses announced to Internet: 752726596
Equivalent to 44 /8s, 221 /16s and 178 /24s
Percentage of available APNIC address space announced: 88.0
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: 179920
Total ARIN prefixes after maximum aggregation: 88981
ARIN Deaggregation factor: 2.02
Prefixes being announced from the ARIN address blocks: 184947
Unique aggregates announced from the ARIN address blocks: 87842
ARIN Region origin ASes present in the Internet Routing Table: 16404
ARIN Prefixes per ASN: 11.27
ARIN Region origin ASes announcing only one prefix: 5887
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: 37
Number of ARIN region 32-bit ASNs visible in the Routing Table: 1089
Number of ARIN addresses announced to Internet: 1101648192
Equivalent to 65 /8s, 169 /16s and 209 /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, 393216-395164
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: 141408
Total RIPE prefixes after maximum aggregation: 69947
RIPE Deaggregation factor: 2.02
Prefixes being announced from the RIPE address blocks: 149984
Unique aggregates announced from the RIPE address blocks: 92642
RIPE Region origin ASes present in the Internet Routing Table: 18070
RIPE Prefixes per ASN: 8.30
RIPE Region origin ASes announcing only one prefix: 7924
RIPE Region transit ASes present in the Internet Routing Table: 2990
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 4592
Number of RIPE addresses announced to Internet: 704189824
Equivalent to 41 /8s, 249 /16s and 21 /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: 61729
Total LACNIC prefixes after maximum aggregation: 12154
LACNIC Deaggregation factor: 5.08
Prefixes being announced from the LACNIC address blocks: 75724
Unique aggregates announced from the LACNIC address blocks: 35785
LACNIC Region origin ASes present in the Internet Routing Table: 2472
LACNIC Prefixes per ASN: 30.63
LACNIC Region origin ASes announcing only one prefix: 582
LACNIC Region transit ASes present in the Internet Routing Table: 555
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2382
Number of LACNIC addresses announced to Internet: 171034112
Equivalent to 10 /8s, 49 /16s and 198 /24s
Percentage of available LACNIC address space announced: 101.9
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: 14146
Total AfriNIC prefixes after maximum aggregation: 3185
AfriNIC Deaggregation factor: 4.44
Prefixes being announced from the AfriNIC address blocks: 15929
Unique aggregates announced from the AfriNIC address blocks: 5656
AfriNIC Region origin ASes present in the Internet Routing Table: 732
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: 166
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 194
Number of AfriNIC addresses announced to Internet: 77962752
Equivalent to 4 /8s, 165 /16s and 158 /24s
Percentage of available AfriNIC address space announced: 77.4
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 5594 4192 76 China Education and Research
7545 3211 352 187 TPG Telecom Limited
4766 3146 11142 1117 Korea Telecom
17974 2917 914 96 PT Telekomunikasi Indonesia
9829 2395 1448 427 National Internet Backbone
4755 2099 432 245 TATA Communications formerly
9808 1858 8717 30 Guangdong Mobile Communicatio
4808 1641 2288 524 CNCGROUP IP network China169
4788 1527 645 62 TM Net, Internet Service Prov
9583 1519 121 564 Sify Limited
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 3347 2948 145 Cox Communications Inc.
6389 2357 3687 42 BellSouth.net Inc.
18566 2209 394 275 MegaPath Corporation
20115 1921 1931 400 Charter Communications
30036 1723 341 282 Mediacom Communications Corp
6983 1689 849 231 EarthLink, Inc.
4323 1573 1004 386 tw telecom holdings, inc.
209 1549 4635 1232 Qwest Communications Company,
701 1387 11446 663 MCI Communications Services,
11492 1277 236 589 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 2515 135 9 SaudiNet, Saudi Telecom Compa
20940 2395 919 1741 Akamai International B.V.
34984 1960 323 414 TELLCOM ILETISIM HIZMETLERI A
8551 1260 376 54 Bezeq International-Ltd
6849 1158 355 21 JSC "Ukrtelecom"
12479 1147 980 86 France Telecom Espana SA
8402 1131 544 15 OJSC "Vimpelcom"
13188 1077 98 78 TOV "Bank-Inform"
31148 1040 47 41 Freenet Ltd.
9198 921 352 25 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 3439 540 160 Telmex Colombia S.A.
8151 2211 3418 541 Uninet S.A. de C.V.
7303 1522 940 245 Telecom Argentina S.A.
11830 1441 366 25 Instituto Costarricense de El
6503 1432 453 56 Axtel, S.A.B. de C.V.
6147 1041 377 27 Telefonica del Peru S.A.A.
26615 995 2325 34 Tim Celular S.A.
3816 994 478 185 COLOMBIA TELECOMUNICACIONES S
7738 992 1882 41 Telemar Norte Leste S.A.
28573 892 2171 158 NET Serviços de Comunicação S
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 1240 403 36 Link Egypt (Link.NET)
8452 668 1472 15 TE-AS
37611 646 48 2 Afrihost-Brevis Computer Serv
36903 584 294 104 Office National des Postes et
36992 506 1357 25 ETISALAT MISR
37492 380 233 65 Orange Tunisie
24835 339 146 12 Vodafone Data
29571 278 37 12 Cote d'Ivoire Telecom
2018 250 327 74 TENET (The UNINET Project)
36947 232 807 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
4538 5594 4192 76 China Education and Research
10620 3439 540 160 Telmex Colombia S.A.
22773 3347 2948 145 Cox Communications Inc.
7545 3211 352 187 TPG Telecom Limited
4766 3146 11142 1117 Korea Telecom
17974 2917 914 96 PT Telekomunikasi Indonesia
39891 2515 135 9 SaudiNet, Saudi Telecom Compa
9829 2395 1448 427 National Internet Backbone
20940 2395 919 1741 Akamai International B.V.
6389 2357 3687 42 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 3439 3279 Telmex Colombia S.A.
22773 3347 3202 Cox Communications Inc.
7545 3211 3024 TPG Telecom Limited
17974 2917 2821 PT Telekomunikasi Indonesia
39891 2515 2506 SaudiNet, Saudi Telecom Compa
6389 2357 2315 BellSouth.net Inc.
4766 3146 2029 Korea Telecom
9829 2395 1968 National Internet Backbone
18566 2209 1934 MegaPath Corporation
4755 2099 1854 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 2828 XO Communications
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
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
23.226.112.0/20 62788 >>UNKNOWN<<
23.249.144.0/20 40430 colo4jax, LLC
27.100.7.0/24 56096 >>UNKNOWN<<
37.46.10.0/23 36351 SoftLayer Technologies Inc.
37.46.14.0/24 36351 SoftLayer Technologies Inc.
37.46.15.0/24 36351 SoftLayer Technologies Inc.
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<<
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 /12:267
/13:513 /14:1032 /15:1768 /16:12975 /17:7578 /18:12696
/19:25816 /20:38153 /21:40031 /22:64976 /23:56380 /24:323558
/25:543 /26:593 /27:398 /28:20 /29:17 /30:11
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
22773 2526 3347 Cox Communications Inc.
39891 2472 2515 SaudiNet, Saudi Telecom Compa
18566 2111 2209 MegaPath Corporation
30036 1537 1723 Mediacom Communications Corp
6389 1499 2357 BellSouth.net Inc.
6983 1338 1689 EarthLink, Inc.
10620 1332 3439 Telmex Colombia S.A.
34984 1245 1960 TELLCOM ILETISIM HIZMETLERI A
11492 1183 1277 CABLE ONE, INC.
6849 976 1158 JSC "Ukrtelecom"
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1645 2:738 4:20 5:2052 6:27 8:927
12:1776 13:38 14:1649 15:45 16:2 17:74
18:20 20:49 23:1429 24:1775 27:2273 31:1761
32:54 33:2 34:2 35:5 36:256 37:2242
38:1179 39:27 40:87 41:2773 42:387 43:1691
44:41 45:1761 46:2468 47:73 49:1131 50:839
51:8 52:142 54:198 55:3 56:6 57:45
58:1528 59:859 60:570 61:1819 62:1483 63:1908
64:4471 65:2165 66:4188 67:2131 68:1101 69:3264
70:1046 71:469 72:1977 74:2550 75:339 76:414
77:1336 78:1304 79:849 80:1331 81:1363 82:939
83:685 84:805 85:1591 86:468 87:1022 88:561
89:1949 90:168 91:6050 92:850 93:2302 94:2353
95:2275 96:462 97:355 98:955 99:45 100:70
101:1025 103:10098 104:2331 105:152 106:400 107:1071
108:672 109:2133 110:1267 111:1641 112:955 113:1136
114:1040 115:1693 116:1541 117:1419 118:2153 119:1572
120:515 121:1174 122:2220 123:2004 124:1618 125:1753
128:722 129:380 130:411 131:1302 132:619 133:177
134:448 135:122 136:353 137:332 138:1726 139:213
140:251 141:470 142:636 143:862 144:601 145:161
146:843 147:645 148:1471 149:479 150:652 151:826
152:606 153:272 154:545 155:946 156:489 157:447
158:346 159:1100 160:437 161:737 162:2303 163:548
164:749 165:1039 166:313 167:1089 168:1635 169:626
170:1577 171:271 172:525 173:1676 174:720 175:919
176:1533 177:3998 178:2241 179:1109 180:2049 181:1703
182:1950 183:680 184:793 185:6044 186:3059 187:2090
188:2149 189:1747 190:7667 191:1201 192:8930 193:5724
194:4369 195:3774 196:1695 197:1070 198:5518 199:5645
200:6956 201:3704 202:10149 203:9629 204:4648 205:2713
206:2980 207:3064 208:4053 209:3795 210:3951 211:2039
212:2635 213:2182 214:832 215:72 216:5738 217:1920
218:761 219:568 220:1674 221:855 222:662 223:950
End of report
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