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AS51896

AS51896 is Hringdu ehf.

Last updated 5 Oct 2026 from DB-IP ASN Lite (2026-10-01) and RIR statistics (1 Nov 2026)

Short answer

AS51896 belongs to Hringdu ehf. DB-IP Lite attributes 20,736 IPv4 addresses in 6 ranges and 1 IPv6 ranges to it, all or nearly all of the IPv4 space in Iceland. The number is registered with RIPE NCC in Iceland on 25 Nov 2010.

Facts for AS51896
Operator (DB-IP)Hringdu ehf
IPv4 addresses20,736
IPv4 ranges6
IPv6 ranges1
RegistryRIPE NCC
Registered25 Nov 2010
Registry countryIceland (IS)

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)

Hringdu ehf 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 1 IPv6 ranges for AS51896, so customers can get IPv6 addresses, which databases place separately from IPv4.

Where its IPv4 space is used, according to DB-IP

IS100%

Share of the network’s IPv4 addresses by DB-IP Country Lite. IP Geolocation by DB-IP.

IP ranges

RangeAs CIDRAddresses
31.209.136.0 – 31.209.159.25531.209.136.0/21, 31.209.144.0/206,144
46.22.96.0 – 46.22.111.25546.22.96.0/204,096
89.17.128.0 – 89.17.159.25589.17.128.0/198,192
154.194.43.0 – 154.194.43.255154.194.43.0/24256
157.157.184.0 – 157.157.187.255157.157.184.0/221,024
185.191.232.0 – 185.191.235.255185.191.232.0/221,024
2a00:5000:: – 2a00:5007:ffff:ffff:ffff:ffff:ffff:ffff2a00:5000::/29IPv6
Showing 6 of 6 IPv4 and 1 of 1 IPv6 ranges All ranges (CSV)

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

  1. DB-IP IP to ASN Lite (CC BY 4.0) · checked 5 Oct 2026
  2. NRO RIR delegated-extended statistics · checked 2 Nov 2026