AS51896 HRINGDU-AS Hringdu ehf

HRINGDU-AS Hringdu ehf · registered in Iceland

IPv4 addresses20,7367 prefixes · <0.001% of announced IPv4

Rank in Iceland#6largest network in IS by IPv4 space, of 70 · 2.37% of IS

Rank worldwide#5,995of 79,396 networks with IPv4

IPv68 x /32 (524,288 x /48)1 prefixes

CountryIceland72 ASNs registered there

Open AS51896 in ASN lookup Look up an IP in this network (31.209.136.1) All networks in Iceland

IPv4 prefixes

All 7 prefixes, in address order.

31.209.136.0/21
31.209.144.0/20
46.22.96.0/20
89.17.128.0/19
154.194.43.0/24
157.157.184.0/22
185.191.232.0/22

IPv6 prefixes

All 1 prefix.

2a00:5000::/29

Similar-sized networks in Iceland

ASNNameIPv4 addresses

AS15474#3 RHNET Rannsokna- og haskolanet Islands hf.131,072

AS44735#4 SIP-ASN Nova hf37,632

AS44515#5 IS-ADVANIA Advania Island ehf33,280

AS50613#7 ThorDC-AS Advania Island ehf18,176

AS21268#8 Ljosleidarinn Ljosleidarinn ehf16,384

AS31441#9 GR-AS Ljosleidarinn ehf16,384

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources