Ireland holds 10,011,968 IPv4 addresses from APNIC, ARIN and RIPE NCC.
Regional registries have allocated 10,011,968 IPv4 addresses in 734 blocks, 212 IPv6 blocks and 291 network numbers to organisations in Ireland, the first on 27 May 1988. By DB-IP’s count the largest network here is Amazon.com, Inc. (AS16509).
Registered here vs used here
The RIR count is what was allocated to organisations registered in Ireland; DB-IP’s count is where it estimates addresses are used. DB-IP places 7,019,790 more IPv4 addresses in Ireland than were allocated here, which happens when networks registered elsewhere (cloud providers, multinationals) operate in the country.
Largest networks by IPv4 space in Ireland
IP Geolocation by DB-IP (ASN Lite × Country Lite, CC BY 4.0).
Allocations per year
Delegation records per year (IPv4 blocks + IPv6 blocks + ASN records) still current in the RIR files. Last 12 years shown.
Download the ranges
Every IPv4 and IPv6 range DB-IP Country Lite places in Ireland, as CSV. The file carries DB-IP’s attribution, which you must keep if you republish it.
Sources
- NRO RIR delegated-extended statistics · checked 5 Nov 2026
- DB-IP IP to Country Lite (CC BY 4.0) · checked 3 Nov 2026