AS31581 is National Infocommunications Service Company Limited by Shares.
AS31581 belongs to National Infocommunications Service Company Limited by Shares. DB-IP Lite attributes 65,536 IPv4 addresses in 1 ranges and no IPv6 ranges to it, all or nearly all of the IPv4 space in Hungary. The number is registered with RIPE NCC in Hungary on 15 Jun 2004.
Does it publish a geofeed?
We haven’t checked this network’s registry records for a geofeed yet. The Truth Check looks for one live for any address you test.
Shared addresses (CGNAT)
National Infocommunications Service Company Limited by Shares hasn’t been documented as using carrier-grade NAT in a source we could check. To see whether your own connection is behind it, compare your router’s address on the CGNAT check.
IPv6
DB-IP lists no IPv6 ranges for AS31581, so its customers reach websites over IPv4.
Where its IPv4 space is used, according to DB-IP
Share of the network’s IPv4 addresses by DB-IP Country Lite. IP Geolocation by DB-IP.
IP ranges
IP Geolocation by DB-IP, ASN Lite, CC BY 4.0.
Using an address from this network? See which sources agree on where it is.
Sources
- DB-IP IP to ASN Lite (CC BY 4.0) · checked 3 Nov 2026
- NRO RIR delegated-extended statistics · checked 6 Nov 2026