AS1837 NCIA
NATO Communications and Information Agency
AS1837 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 AS1837
Look up any address in real time with the free IP checker, or from your own code:
curl "https://fraudex.xyz/api/check?ip=192.41.140.0" \ -H "X-API-Key: fx_your_key"
The answer includes the network (AS1837), 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 AS1837
| First IP | Last IP | CIDR | Addresses |
|---|---|---|---|
| 192.41.140.0 | 192.41.140.255 | 192.41.140.0/24 | 256 |
Questions about AS1837
Is AS1837 a VPN or hosting network?
Fraudex does not list AS1837 (NCIA) as a VPN, proxy or hosting network. Its addresses are treated as regular traffic, apart from any Tor exit relays.
Which country is AS1837 registered in?
AS1837 is registered in European Union. Individual addresses can be used elsewhere, so check the IP itself when location matters.
How many IP addresses does AS1837 have?
It announces 1 IPv4 range with 256 addresses in total.
How do I block traffic from AS1837?
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.