AS4721 JCN
JCOM Co., Ltd.
AS4721 is not on Fraudex's VPN, proxy and datacenter list, so its IPs are treated like ordinary home, mobile or business connections. A single address can still be flagged if it is a Tor exit relay.
Check an IP from AS4721
Look up any address in real time with the free IP checker, or from your own code:
curl "https://fraudex.xyz/api/check?ip=14.193.0.0" \ -H "X-API-Key: fx_your_key"
The answer includes the network (AS4721), the country and a VPN, proxy, Tor and bot verdict, in under a millisecond. Plans start at $40 for 30 days of unlimited lookups.
IPv4 ranges announced by AS4721
| First IP | Last IP | CIDR | Addresses |
|---|---|---|---|
| 14.193.0.0 | 14.193.255.255 | 14.193.0.0/16 | 65,536 |
| 61.203.224.0 | 61.203.255.255 | 61.203.224.0/19 | 8,192 |
| 110.4.48.0 | 110.4.63.255 | 110.4.48.0/20 | 4,096 |
| 110.92.80.0 | 110.92.95.255 | 110.92.80.0/20 | 4,096 |
| 110.93.0.0 | 110.93.7.255 | 110.93.0.0/21 | 2,048 |
| 110.173.240.0 | 110.173.255.255 | 110.173.240.0/20 | 4,096 |
| 110.232.0.0 | 110.232.31.255 | 110.232.0.0/19 | 8,192 |
| 110.232.128.0 | 110.232.135.255 | 110.232.128.0/21 | 2,048 |
| 111.90.0.0 | 111.90.127.255 | 111.90.0.0/17 | 32,768 |
| 112.137.32.0 | 112.137.47.255 | 112.137.32.0/20 | 4,096 |
| 112.137.64.0 | 112.137.127.255 | 112.137.64.0/18 | 16,384 |
| 113.52.16.0 | 113.52.31.255 | 113.52.16.0/20 | 4,096 |
| 113.61.112.0 | 113.61.127.255 | 113.61.112.0/20 | 4,096 |
| 114.134.112.0 | 114.134.127.255 | 114.134.112.0/20 | 4,096 |
| 114.134.192.0 | 114.134.255.255 | 114.134.192.0/18 | 16,384 |
| 114.142.128.0 | 114.142.135.255 | 114.142.128.0/21 | 2,048 |
| 114.198.192.0 | 114.198.231.255 | 114.198.192.0/19, 114.198.224.0/21 | 10,240 |
| 115.42.96.0 | 115.42.111.255 | 115.42.96.0/20 | 4,096 |
| 116.70.128.0 | 116.70.191.255 | 116.70.128.0/18 | 16,384 |
| 118.83.0.0 | 118.83.255.255 | 118.83.0.0/16 | 65,536 |
| 118.86.0.0 | 118.87.255.255 | 118.86.0.0/15 | 131,072 |
| 122.255.128.0 | 122.255.255.255 | 122.255.128.0/17 | 32,768 |
| 123.98.224.0 | 123.98.255.255 | 123.98.224.0/19 | 8,192 |
| 175.41.64.0 | 175.41.127.255 | 175.41.64.0/18 | 16,384 |
| 175.103.12.0 | 175.103.15.255 | 175.103.12.0/22 | 1,024 |
| 180.92.32.0 | 180.92.63.255 | 180.92.32.0/19 | 8,192 |
| 180.149.160.0 | 180.149.191.255 | 180.149.160.0/19 | 8,192 |
| 182.50.192.0 | 182.50.239.255 | 182.50.192.0/19, 182.50.224.0/20 | 12,288 |
| 202.43.16.0 | 202.43.31.255 | 202.43.16.0/20 | 4,096 |
| 202.43.68.0 | 202.43.71.255 | 202.43.68.0/22 | 1,024 |
| 202.72.64.0 | 202.72.79.255 | 202.72.64.0/20 | 4,096 |
| 202.78.176.0 | 202.78.191.255 | 202.78.176.0/20 | 4,096 |
| 202.83.184.0 | 202.83.191.255 | 202.83.184.0/21 | 2,048 |
| 202.178.80.0 | 202.178.95.255 | 202.178.80.0/20 | 4,096 |
| 203.89.32.0 | 203.89.63.255 | 203.89.32.0/19 | 8,192 |
| 203.114.248.0 | 203.114.251.255 | 203.114.248.0/22 | 1,024 |
| 203.124.64.0 | 203.124.95.255 | 203.124.64.0/19 | 8,192 |
| 203.153.56.0 | 203.153.59.255 | 203.153.56.0/22 | 1,024 |
| 210.135.192.0 | 210.135.223.255 | 210.135.192.0/19 | 8,192 |
| 210.172.240.0 | 210.172.255.255 | 210.172.240.0/20 | 4,096 |
| 211.19.208.0 | 211.19.223.255 | 211.19.208.0/20 | 4,096 |
| 218.219.80.0 | 218.219.95.255 | 218.219.80.0/20 | 4,096 |
| 219.112.192.0 | 219.112.223.255 | 219.112.192.0/19 | 8,192 |
| 219.113.96.0 | 219.113.111.255 | 219.113.96.0/20 | 4,096 |
| 219.117.0.0 | 219.117.15.255 | 219.117.0.0/20 | 4,096 |
| 219.117.160.0 | 219.117.191.255 | 219.117.160.0/19 | 8,192 |
| 219.124.224.0 | 219.124.255.255 | 219.124.224.0/19 | 8,192 |
| 220.208.64.0 | 220.208.127.255 | 220.208.64.0/18 | 16,384 |
| 221.132.128.0 | 221.132.191.255 | 221.132.128.0/18 | 16,384 |
| 223.165.20.0 | 223.165.23.255 | 223.165.20.0/22 | 1,024 |
| 223.165.32.0 | 223.165.63.255 | 223.165.32.0/19 | 8,192 |
| 223.223.208.0 | 223.223.215.255 | 223.223.208.0/21 | 2,048 |
IPv6 ranges announced by AS4721
| First IP | Last IP | CIDR |
|---|---|---|
| 2001:c30:: | 2001:c30:ffff:ffff:ffff:ffff:ffff:ffff | 2001:c30::/32 |
Questions about AS4721
Is AS4721 a VPN or hosting network?
Fraudex does not list AS4721 (JCN) as a VPN, proxy or hosting network. Its addresses are treated as regular traffic, apart from any Tor exit relays.
Which country is AS4721 registered in?
AS4721 is registered in Japan. Individual addresses can be used elsewhere, so check the IP itself when location matters.
How many IP addresses does AS4721 have?
It announces 52 IPv4 ranges with 631,808 addresses in total, plus 1 IPv6 range.
How do I block traffic from AS4721?
Blocking a whole network by number goes stale as ranges change hands. It is more reliable to check each visitor's IP when they sign up, log in or pay: the Fraudex API returns the network and a VPN and bot verdict, so you can block, challenge or just log flagged traffic. See why an IP blocking API pays for itself.