Key takeaway
Compare Ireland's best mobile plans in 2024 - Three, Vodafone, Eir, 48 - with prices, data allowances, and EU roaming rules explained.
Choosing a mobile plan is one of the first practical tasks after moving to Ireland. With four main networks - Three, Vodafone, Eir, and budget operator 48 - and a mix of pay-monthly (bill pay) and pay-as-you-go (PAYG) options, it helps to know what you're actually paying for before you commit.
What's the difference between a contract and PAYG in Ireland?
A bill pay contract (usually 12 or 24 months) gives you a set monthly allowance of data, calls, and texts billed automatically to your bank card or via direct debit. PAYG (pay-as-you-go) means you top up credit or buy a 30-day bundle as needed, with no contract - ideal if you don't yet have an Irish bank account or want flexibility while you settle in. Most newcomers start on PAYG or a SIM-only 30-day rolling plan until they have proof of address and an Irish IBAN.
How much do SIM-only plans cost in Ireland?
Typical SIM-only monthly plans in 2024:
- Three Ireland: from roughly €15-€20/month for 30GB-unlimited data, often with EU roaming included.
- Vodafone Ireland: Red plans from roughly €20-€35/month, with unlimited data on higher tiers.
- Eir Mobile: from around €15/month for 20GB+, often discounted for existing eir broadband customers.
- 48 (Vodafone's budget brand): online-only, from as little as €10-€15/month for smaller data bundles - no contract, no credit check, popular with students and newcomers.
Family and unlimited-data plans can run to €35-€45/month, while budget 5-10GB PAYG bundles start around €10-€15 for 28-30 days. Prices in Dublin, Cork, Galway and Limerick are identical since these are national plans, though 5G coverage is strongest in the cities.
Which network has the best coverage in Ireland?
Three and Vodafone generally report the widest 4G/5G coverage nationally, including most of rural Ireland. Eir has strong coverage in urban centres. If you'll be living outside Dublin, Cork, Galway or Limerick - for example in rural Mayo, Donegal or Kerry - it's worth checking each operator's coverage checker tool on their website before signing up, as rural signal can vary significantly by townland.
How does EU roaming work on an Irish SIM?
Under EU 'Roam Like At Home' rules, Irish mobile plans include free roaming (using your normal allowance) when travelling in the EU/EEA. This applies to Three, Vodafone and Eir bill-pay and most PAYG plans. Note that post-Brexit, the UK is not covered by these EU rules, so check for UK roaming charges separately if you travel to Northern Ireland or Britain frequently - though most major networks now include the UK in standard allowances too.
Do I need a PPS number or proof of address to get a contract?
Bill-pay contracts typically require an Irish bank account (for direct debit) and proof of address, though a PPS number itself usually isn't mandatory. Many newcomers use PAYG for the first few months while they open a bank account and register their address, then switch to a better-value bill-pay plan once eligible. Retailers like Carphone Warehouse, Three stores, and Vodafone stores in Dublin, Cork and Galway can set you up with a SIM on the spot.
Frequently Asked Questions
What is the cheapest mobile plan in Ireland in 2024?
48 (Vodafone's online-only brand) and Three's budget SIM-only bundles are generally the cheapest, starting around €10-€15/month for PAYG bundles with 5-10GB data. These require no credit check and no contract, making them ideal for newcomers.
Can I get a mobile contract in Ireland without a PPS number?
Yes. Most networks require proof of ID, address, and an Irish bank account for a bill-pay contract, but not necessarily a PPS number. PAYG SIMs need no documentation at all beyond ID in some stores.
Does my Irish SIM work in the EU without extra charges?
Yes, under EU roaming rules, Irish SIM cards from Three, Vodafone and Eir let you use your home data, call and text allowance for free across the EU/EEA. Check with your provider about the UK, which is outside these rules post-Brexit.
Which is better in Ireland: Three, Vodafone, Eir or 48?
Vodafone and Three generally offer the strongest nationwide coverage; Eir is competitive on price and bundles well with broadband; 48 is the cheapest for light data users. Choice depends on where in Ireland you live and how much data you use.
How do I switch mobile networks in Ireland and keep my number?
You can port your number for free by requesting a PAC (Porting Authorisation Code) by texting 'PAC' to 65065 from your current phone, then giving that code to your new provider. The switch usually completes within 1-2 working days.
General guidance only. Always verify with official sources — gov.ie, citizensinformation.ie, hse.ie.