asn.dev

Address space

AS7497 CSTNET-AS-AP Computer Network Information Center of Chinese Academy of Sciences CNIC-CAS

IPv4 prefixes 319 868K addresses
IPv6 prefixes 216
Most common size /24 IPv4
Flagged 0

Shape

Prefix sizes

IPv4
/15
/15: 1
1
/16
/16: 3
3
/17
/17: 2
2
/18
/18: 3
3
/19
/19: 14
14
/20
/20: 23
23
/21
/21: 46
46
/22
/22: 57
57
/23
/23: 80
80
/24
/24: 90
90

How this network carves its IPv4 space. A wall of /24s usually means many small customer assignments or fine-grained traffic engineering; a few short prefixes means large contiguous allocations announced whole.

Shape

Prefix sizes

IPv6
/31
/31: 1
1
/32
/32: 7
7
/33
/33: 8
8
/34
/34: 10
10
/35
/35: 9
9
/36
/36: 10
10
/37
/37: 12
12
/38
/38: 12
12
/39
/39: 12
12
/40
/40: 12
12
/41
/41: 12
12
/42
/42: 12
12
/43
/43: 11
11
/44
/44: 11
11
/45
/45: 12
12
/46
/46: 18
18
/47
/47: 25
25
/48
/48: 22
22

Geography

Where the space lands

CountryNamePrefixes
CNChina535

Inventory

All prefixes

showing 400 of 535
PrefixFamilyAddressesCountryFlags
49.210.0.0/18IPv416,384CN
49.210.64.0/19IPv48,192CN
49.210.96.0/22IPv41,024CN
49.210.100.0/22IPv41,024CN
49.210.104.0/21IPv42,048CN
49.210.112.0/20IPv44,096CN
49.210.128.0/24IPv4256CN
49.210.129.0/24IPv4256CN
49.210.130.0/23IPv4512CN
49.210.132.0/22IPv41,024CN
49.210.136.0/21IPv42,048CN
49.210.144.0/20IPv44,096CN
49.210.160.0/19IPv48,192CN
49.210.192.0/22IPv41,024CN
49.210.196.0/24IPv4256CN
49.210.197.0/24IPv4256CN
49.210.198.0/23IPv4512CN
49.210.200.0/21IPv42,048CN
49.210.208.0/20IPv44,096CN
49.210.224.0/19IPv48,192CN
49.211.0.0/16IPv465,536CN
60.245.128.0/18IPv416,384CN
60.245.192.0/22IPv41,024CN
60.245.196.0/23IPv4512CN
60.245.198.0/24IPv4256CN
60.245.199.0/24IPv4256CN
60.245.200.0/21IPv42,048CN
60.245.208.0/21IPv42,048CN
60.245.216.0/21IPv42,048CN
60.245.224.0/19IPv48,192CN
101.252.0.0/15IPv4131,072CN
103.2.208.0/22IPv41,024CN
113.130.96.0/20IPv44,096CN
113.130.112.0/21IPv42,048CN
119.78.0.0/23IPv4512CN
119.78.2.0/24IPv4256CN
119.78.3.0/24IPv4256CN
119.78.4.0/22IPv41,024CN
119.78.8.0/21IPv42,048CN
119.78.16.0/20IPv44,096CN
119.78.32.0/19IPv48,192CN
119.78.64.0/24IPv4256CN
119.78.65.0/24IPv4256CN
119.78.66.0/23IPv4512CN
119.78.68.0/22IPv41,024CN
119.78.72.0/21IPv42,048CN
119.78.80.0/22IPv41,024CN
119.78.84.0/23IPv4512CN
119.78.86.0/23IPv4512CN
119.78.88.0/21IPv42,048CN
119.78.96.0/19IPv48,192CN
119.78.128.0/21IPv42,048CN
119.78.136.0/21IPv42,048CN
119.78.144.0/20IPv44,096CN
119.78.160.0/22IPv41,024CN
119.78.164.0/23IPv4512CN
119.78.166.0/23IPv4512CN
119.78.168.0/22IPv41,024CN
119.78.172.0/23IPv4512CN
119.78.174.0/23IPv4512CN
119.78.176.0/20IPv44,096CN
119.78.192.0/20IPv44,096CN
119.78.208.0/22IPv41,024CN
119.78.212.0/23IPv4512CN
119.78.214.0/24IPv4256CN
119.78.215.0/24IPv4256CN
119.78.216.0/24IPv4256CN
119.78.217.0/24IPv4256CN
119.78.218.0/24IPv4256CN
119.78.219.0/24IPv4256CN
119.78.220.0/22IPv41,024CN
119.78.224.0/21IPv42,048CN
119.78.232.0/24IPv4256CN
119.78.233.0/24IPv4256CN
119.78.234.0/24IPv4256CN
119.78.235.0/24IPv4256CN
119.78.236.0/22IPv41,024CN
119.78.240.0/22IPv41,024CN
119.78.244.0/22IPv41,024CN
119.78.248.0/22IPv41,024CN
119.78.252.0/22IPv41,024CN
119.79.0.0/16IPv465,536CN
124.16.0.0/21IPv42,048CN
124.16.8.0/23IPv4512CN
124.16.10.0/24IPv4256CN
124.16.11.0/24IPv4256CN
124.16.12.0/22IPv41,024CN
124.16.16.0/21IPv42,048CN
124.16.24.0/22IPv41,024CN
124.16.28.0/23IPv4512CN
124.16.30.0/23IPv4512CN
124.16.32.0/19IPv48,192CN
124.16.64.0/20IPv44,096CN
124.16.80.0/20IPv44,096CN
124.16.96.0/19IPv48,192CN
124.16.128.0/22IPv41,024CN
124.16.132.0/23IPv4512CN
124.16.134.0/24IPv4256CN
124.16.135.0/24IPv4256CN
124.16.136.0/21IPv42,048CN
124.16.144.0/21IPv42,048CN
124.16.152.0/24IPv4256CN
124.16.153.0/24IPv4256CN
124.16.154.0/24IPv4256CN
124.16.155.0/24IPv4256CN
124.16.156.0/22IPv41,024CN
124.16.160.0/21IPv42,048CN
124.16.168.0/22IPv41,024CN
124.16.172.0/22IPv41,024CN
124.16.176.0/20IPv44,096CN
124.16.192.0/19IPv48,192CN
124.16.224.0/20IPv44,096CN
124.16.240.0/21IPv42,048CN
124.16.248.0/22IPv41,024CN
124.16.252.0/23IPv4512CN
124.16.254.0/23IPv4512CN
124.17.0.0/21IPv42,048CN
124.17.8.0/22IPv41,024CN
124.17.12.0/23IPv4512CN
124.17.14.0/23IPv4512CN
124.17.16.0/20IPv44,096CN
124.17.32.0/21IPv42,048CN
124.17.40.0/23IPv4512CN
124.17.42.0/23IPv4512CN
124.17.44.0/22IPv41,024CN
124.17.48.0/20IPv44,096CN
124.17.64.0/20IPv44,096CN
124.17.80.0/21IPv42,048CN
124.17.88.0/23IPv4512CN
124.17.90.0/24IPv4256CN
124.17.91.0/24IPv4256CN
124.17.92.0/24IPv4256CN
124.17.93.0/24IPv4256CN
124.17.94.0/23IPv4512CN
124.17.96.0/19IPv48,192CN
124.17.128.0/17IPv432,768CN
159.226.0.0/21IPv42,048CN
159.226.8.0/22IPv41,024CN
159.226.12.0/23IPv4512CN
159.226.14.0/24IPv4256CN
159.226.15.0/24IPv4256CN
159.226.16.0/23IPv4512CN
159.226.18.0/23IPv4512CN
159.226.20.0/22IPv41,024CN
159.226.24.0/21IPv42,048CN
159.226.32.0/20IPv44,096CN
159.226.48.0/21IPv42,048CN
159.226.56.0/22IPv41,024CN
159.226.60.0/24IPv4256CN
159.226.61.0/24IPv4256CN
159.226.62.0/23IPv4512CN
159.226.64.0/22IPv41,024CN
159.226.68.0/23IPv4512CN
159.226.70.0/23IPv4512CN
159.226.72.0/22IPv41,024CN
159.226.76.0/23IPv4512CN
159.226.78.0/23IPv4512CN
159.226.80.0/22IPv41,024CN
159.226.84.0/23IPv4512CN
159.226.86.0/23IPv4512CN
159.226.88.0/21IPv42,048CN
159.226.96.0/23IPv4512CN
159.226.98.0/23IPv4512CN
159.226.100.0/24IPv4256CN
159.226.101.0/24IPv4256CN
159.226.102.0/23IPv4512CN
159.226.104.0/24IPv4256CN
159.226.105.0/24IPv4256CN
159.226.106.0/23IPv4512CN
159.226.108.0/22IPv41,024CN
159.226.112.0/24IPv4256CN
159.226.113.0/24IPv4256CN
159.226.114.0/23IPv4512CN
159.226.116.0/23IPv4512CN
159.226.118.0/24IPv4256CN
159.226.119.0/24IPv4256CN
159.226.120.0/23IPv4512CN
159.226.122.0/23IPv4512CN
159.226.124.0/22IPv41,024CN
159.226.128.0/22IPv41,024CN
159.226.132.0/23IPv4512CN
159.226.134.0/23IPv4512CN
159.226.136.0/21IPv42,048CN
159.226.144.0/21IPv42,048CN
159.226.152.0/23IPv4512CN
159.226.154.0/23IPv4512CN
159.226.156.0/22IPv41,024CN
159.226.160.0/20IPv44,096CN
159.226.176.0/22IPv41,024CN
159.226.180.0/23IPv4512CN
159.226.182.0/24IPv4256CN
159.226.183.0/24IPv4256CN
159.226.184.0/21IPv42,048CN
159.226.192.0/21IPv42,048CN
159.226.200.0/24IPv4256CN
159.226.201.0/24IPv4256CN
159.226.202.0/23IPv4512CN
159.226.204.0/23IPv4512CN
159.226.206.0/23IPv4512CN
159.226.208.0/21IPv42,048CN
159.226.216.0/23IPv4512CN
159.226.218.0/23IPv4512CN
159.226.220.0/23IPv4512CN
159.226.222.0/24IPv4256CN
159.226.223.0/24IPv4256CN
159.226.224.0/24IPv4256CN
159.226.225.0/24IPv4256CN
159.226.226.0/24IPv4256CN
159.226.227.0/24IPv4256CN
159.226.228.0/24IPv4256CN
159.226.229.0/24IPv4256CN
159.226.230.0/23IPv4512CN
159.226.232.0/23IPv4512CN
159.226.234.0/23IPv4512CN
159.226.236.0/23IPv4512CN
159.226.238.0/24IPv4256CN
159.226.239.0/24IPv4256CN
159.226.240.0/21IPv42,048CN
159.226.248.0/23IPv4512CN
159.226.250.0/23IPv4512CN
159.226.252.0/22IPv41,024CN
202.38.128.0/23IPv4512CN
202.122.32.0/21IPv42,048CN
202.127.0.0/22IPv41,024CN
202.127.4.0/24IPv4256CN
202.127.5.0/24IPv4256CN
202.127.6.0/24IPv4256CN
202.127.7.0/24IPv4256CN
202.127.16.0/20IPv44,096CN
202.127.144.0/22IPv41,024CN
202.127.148.0/24IPv4256CN
202.127.149.0/24IPv4256CN
202.127.150.0/23IPv4512CN
202.127.152.0/23IPv4512CN
202.127.154.0/23IPv4512CN
202.127.156.0/22IPv41,024CN
202.127.200.0/21IPv42,048CN
203.83.56.0/21IPv42,048CN
210.72.0.0/20IPv44,096CN
210.72.16.0/20IPv44,096CN
210.72.32.0/19IPv48,192CN
210.72.64.0/22IPv41,024CN
210.72.68.0/24IPv4256CN
210.72.69.0/24IPv4256CN
210.72.70.0/23IPv4512CN
210.72.72.0/21IPv42,048CN
210.72.80.0/22IPv41,024CN
210.72.84.0/22IPv41,024CN
210.72.88.0/23IPv4512CN
210.72.90.0/23IPv4512CN
210.72.92.0/22IPv41,024CN
210.72.96.0/19IPv48,192CN
210.72.128.0/23IPv4512CN
210.72.130.0/24IPv4256CN
210.72.131.0/24IPv4256CN
210.72.132.0/24IPv4256CN
210.72.133.0/24IPv4256CN
210.72.134.0/23IPv4512CN
210.72.136.0/22IPv41,024CN
210.72.140.0/23IPv4512CN
210.72.142.0/24IPv4256CN
210.72.143.0/24IPv4256CN
210.72.144.0/22IPv41,024CN
210.72.148.0/23IPv4512CN
210.72.150.0/24IPv4256CN
210.72.151.0/24IPv4256CN
210.72.152.0/21IPv42,048CN
210.73.0.0/21IPv42,048CN
210.73.8.0/23IPv4512CN
210.73.10.0/24IPv4256CN
210.73.11.0/24IPv4256CN
210.73.12.0/24IPv4256CN
210.73.13.0/24IPv4256CN
210.73.14.0/23IPv4512CN
210.73.16.0/20IPv44,096CN
210.73.32.0/21IPv42,048CN
210.73.40.0/23IPv4512CN
210.73.42.0/23IPv4512CN
210.73.44.0/22IPv41,024CN
210.73.48.0/24IPv4256CN
210.73.49.0/24IPv4256CN
210.73.50.0/24IPv4256CN
210.73.51.0/24IPv4256CN
210.73.52.0/22IPv41,024CN
210.73.56.0/21IPv42,048CN
210.75.224.0/20IPv44,096CN
210.75.240.0/23IPv4512CN
210.75.242.0/23IPv4512CN
210.75.244.0/22IPv41,024CN
210.75.248.0/21IPv42,048CN
210.76.192.0/21IPv42,048CN
210.76.200.0/23IPv4512CN
210.76.202.0/24IPv4256CN
210.76.203.0/24IPv4256CN
210.76.204.0/22IPv41,024CN
210.76.208.0/21IPv42,048CN
210.76.216.0/22IPv41,024CN
210.76.220.0/22IPv41,024CN
210.77.0.0/19IPv48,192CN
210.77.64.0/19IPv48,192CN
223.192.0.0/16IPv465,536CN
223.193.0.0/20IPv44,096CN
223.193.16.0/22IPv41,024CN
223.193.20.0/24IPv4256CN
223.193.21.0/24IPv4256CN
223.193.22.0/23IPv4512CN
223.193.24.0/21IPv42,048CN
223.193.32.0/22IPv41,024CN
223.193.36.0/24IPv4256CN
223.193.37.0/24IPv4256CN
223.193.38.0/23IPv4512CN
223.193.40.0/21IPv42,048CN
223.193.48.0/22IPv41,024CN
223.193.52.0/24IPv4256CN
223.193.53.0/24IPv4256CN
223.193.54.0/23IPv4512CN
223.193.56.0/21IPv42,048CN
223.193.64.0/18IPv416,384CN
223.193.128.0/17IPv432,768CN
2001:cc0::/32IPv6—CN
2400:dd00::/32IPv6—CN
2400:dd01::/36IPv6—CN
2400:dd01:1000::/45IPv6—CN
2400:dd01:1008::/47IPv6—CN
2400:dd01:100a::/47IPv6—CN
2400:dd01:100c::/46IPv6—CN
2400:dd01:1010::/46IPv6—CN
2400:dd01:1014::/47IPv6—CN
2400:dd01:1016::/47IPv6—CN
2400:dd01:1018::/47IPv6—CN
2400:dd01:101a::/48IPv6—CN
2400:dd01:101b::/48IPv6—CN
2400:dd01:101c::/48IPv6—CN
2400:dd01:101d::/48IPv6—CN
2400:dd01:101e::/47IPv6—CN
2400:dd01:1020::/44IPv6—CN
2400:dd01:1030::/45IPv6—CN
2400:dd01:1038::/46IPv6—CN
2400:dd01:103c::/46IPv6—CN
2400:dd01:1040::/42IPv6—CN
2400:dd01:1080::/41IPv6—CN
2400:dd01:1100::/40IPv6—CN
2400:dd01:1200::/39IPv6—CN
2400:dd01:1400::/38IPv6—CN
2400:dd01:1800::/37IPv6—CN
2400:dd01:2000::/45IPv6—CN
2400:dd01:2008::/46IPv6—CN
2400:dd01:200c::/47IPv6—CN
2400:dd01:200e::/47IPv6—CN
2400:dd01:2010::/44IPv6—CN
2400:dd01:2020::/43IPv6—CN
2400:dd01:2040::/42IPv6—CN
2400:dd01:2080::/41IPv6—CN
2400:dd01:2100::/40IPv6—CN
2400:dd01:2200::/39IPv6—CN
2400:dd01:2400::/38IPv6—CN
2400:dd01:2800::/37IPv6—CN
2400:dd01:3000::/46IPv6—CN
2400:dd01:3004::/48IPv6—CN
2400:dd01:3005::/48IPv6—CN
2400:dd01:3006::/47IPv6—CN
2400:dd01:3008::/46IPv6—CN
2400:dd01:300c::/48IPv6—CN
2400:dd01:300d::/48IPv6—CN
2400:dd01:300e::/47IPv6—CN
2400:dd01:3010::/46IPv6—CN
2400:dd01:3014::/48IPv6—CN
2400:dd01:3015::/48IPv6—CN
2400:dd01:3016::/47IPv6—CN
2400:dd01:3018::/48IPv6—CN
2400:dd01:3019::/48IPv6—CN
2400:dd01:301a::/47IPv6—CN
2400:dd01:301c::/46IPv6—CN
2400:dd01:3020::/43IPv6—CN
2400:dd01:3040::/42IPv6—CN
2400:dd01:3080::/41IPv6—CN
2400:dd01:3100::/40IPv6—CN
2400:dd01:3200::/39IPv6—CN
2400:dd01:3400::/38IPv6—CN
2400:dd01:3800::/37IPv6—CN
2400:dd01:4000::/34IPv6—CN
2400:dd01:8000::/34IPv6—CN
2400:dd01:c000::/35IPv6—CN
2400:dd01:e000::/47IPv6—CN
2400:dd01:e002::/47IPv6—CN
2400:dd01:e004::/46IPv6—CN
2400:dd01:e008::/45IPv6—CN
2400:dd01:e010::/44IPv6—CN
2400:dd01:e020::/43IPv6—CN
2400:dd01:e040::/42IPv6—CN
2400:dd01:e080::/41IPv6—CN
2400:dd01:e100::/40IPv6—CN
2400:dd01:e200::/39IPv6—CN
2400:dd01:e400::/38IPv6—CN
2400:dd01:e800::/37IPv6—CN
2400:dd01:f000::/36IPv6—CN
2400:dd02::/36IPv6—CN
2400:dd02:1000::/44IPv6—CN
2400:dd02:1010::/47IPv6—CN
2400:dd02:1012::/48IPv6—CN

Capped at 400 rows to keep the page a sane size. The filter searches only what is rendered.