Mobile operator · Ireland

Three Ireland ASN, MCC/MNC and IP prefixes

Three Ireland is a mobile network operator in Ireland, part of CK Hutchison Holdings. It routes traffic through 2 autonomous systems (AS13280, AS34218), which announced 70 prefixes at our last probe, and its SIMs carry MCC/MNC 272-05, 272-02.

ASNs
2
Prefixes
70
Reviewed
September 2026
Country
Ireland (IE)
Parent group
CK Hutchison Holdings
ASNs
AS13280, AS34218
MCC / MNC
272-05, 272-02
Network generations
4G LTE, 5G
ASNs confirmed
2 of 2
Announced prefixes
70 at probe on 2026-09-06
Official site
www.three.ie

Autonomous systems

Holder names and prefix counts come from the RIPE NCC's RIPEstat Data API, fetched on 2026-09-06. Role and confidence come from the evidence linked in each row; "confirmed" means a PeeringDB or RIPEstat record, or the operator's own site, names the operator.
Three Ireland autonomous systems
ASNHolder (RIPEstat)RoleAnnouncedIPv4 prefixesIPv6 prefixesEvidence
AS13280H3GIE Three Ireland (Hutchison) limitedPeeringDB: Three Ireland (Hutchison) Ltd · NSPMobile networkconfirmedyes700source · RIPEstat · PeeringDB
AS34218H3GIE Three Ireland (Hutchison) limitedPeeringDB: Hutchison 3G Ireland · NSPRole not documentedconfirmedno00source · RIPEstat · PeeringDB

Mobile network codes

The MCC identifies the country and the MNC identifies the operator inside it. Together they appear in the IMSI of every SIM on the network and in device diagnostics; they are how a handset knows which network it is on.
Three Ireland MCC and MNC
MCC-MNCMCCMNCSource
272-0527205en.wikipedia.org/wiki/Mobile_network_codes_in_IT
272-0227202en.wikipedia.org/wiki/Mobile_network_codes_in_IT

About Three Ireland

Three Ireland is a mobile network operator in Ireland owned by CK Hutchison Holdings. AS13280, registered as H3GIE Three Ireland (Hutchison) limited, carries its mobile network. A second ASN, AS34218, sits under the same holder with no documented role. The registry lists MCC/MNC codes 272-05 and 272-02, and 4G LTE and 5G generations.

The registry records two ASNs for Three Ireland, both held by Three Ireland (Hutchison) limited. AS13280 is the documented mobile AS and announced 70 IPv4 prefixes and no IPv6 prefixes at the last probe; PeeringDB names it Three Ireland (Hutchison) Ltd and classifies it as an NSP. AS34218 announced nothing at the last probe, with zero IPv4 and zero IPv6 prefixes; PeeringDB names it Hutchison 3G Ireland under the same organisation and also classifies it as an NSP. The registry gives it no role.

An address whose origin ASN is AS13280 is routed by Three Ireland on the AS the registry documents as mobile, which makes it the ASN to match against for this operator. AS34218 announces no space at all, so an address should not originate there, and if one does the registry records no role that would tell you whether it is mobile, fixed or enterprise. The absence of announced IPv6 prefixes on AS13280 means IPv6 traffic from this operator will not carry that origin.

Research note. AS13280: RIPEstat holder 'H3GIE Three Ireland (Hutchison) limited', announced; PeeringDB net id 22393 'Three Ireland (Hutchison) Ltd', website three.ie, type NSP, 300-500Gbps, as-set AS-H3GIE - the main network AS. AS34218: same RIPEstat holder but NOT announced; PeeringDB net id 6853 'Hutchison 3G Ireland' (aka Three Ireland (Hutchison)), NSP, 100-200Gbps, same org 9412 - legacy/secondary AS, role not stated. MCC/MNC: 272-05 Operational (GSM 900, UMTS 2100, LTE 800/1800/2100/2600, 5G 1800/3500) is the primary code; 272-02 Operational (GSM 900/UMTS 2100) is the former Telefonica O2 Ireland code now held by Three Ireland Services (Hutchison) Ltd; Wikipedia also lists 272-17 for Three with status Unknown - not included. Generations: three.ie/corporate/about-us.html states 'over 94% 5G coverage and 99% 4G coverage'. Parent: same page states 'Three is owned by CK Hutchison Holdings (CK Hutchison)'.

Check whether an IP belongs to Three Ireland

Look up the origin ASN of the address and compare it with the table above. RIPEstat answers for any address, and the RADB whois mirror lists the routes registered under an ASN.
Origin ASN of an address
curl -s "https://stat.ripe.net/data/prefix-overview/data.json?resource=203.0.113.9" | jq '.data.asns'
Routes registered under AS13280
whois -h whois.radb.net -- '-i origin AS13280' | grep ^route

Questions

What is Three Ireland's ASN?
AS13280, registered as H3GIE Three Ireland (Hutchison) limited, is the mobile AS and the one announcing address space. The registry also records AS34218 under the same holder, but it announced no prefixes at the last probe and has no documented role.
What is the MCC/MNC of Three Ireland?
The registry lists 272-05 and 272-02, both under mobile country code 272 for Ireland. Both codes are recorded against the operator; the registry does not mark either as the primary code.
Is an IP from AS13280 a mobile IP?
AS13280 is documented as Three Ireland's mobile AS, so an address originating there is routed on that network. The registry does not break the ASN down by prefix, so it cannot tell you whether one particular address is handset traffic.

Where Three Ireland meets other networks

PeeringDB records Three Ireland as a participant at internet exchanges in one city. Each city page lists the exchanges there and the other networks present.

Network cities in Ireland: Dublin, Cork.

Sources

ASN and prefix data describe how the operator's networks are registered and announced. They do not identify an individual subscriber or where a device is, since carriers route traffic from many areas through shared gateways.