Free eSIM for Ireland 
3 GB of free mobile data across Ireland and 38 other European countries. Dublin pubs to the Cliffs of Moher, the Ring of Kerry to Giant's Causeway — your phone works from the moment wheels touch tarmac. No SIM swap, no Vodafone store detour, no card charge.
Free for new users · Credit card for identity verification only — never charged · Valid 3 days
Why an eSIM beats an Irish prepaid SIM
Ireland's prepaid market is simple — walk into a Tesco, Circle K or Vodafone store and grab a €20 starter pack with 15 GB. Not bad. But activation still requires an Irish address and sometimes passport verification, and if you're here for just a long weekend the math is embarrassing: €20 for maybe 2 GB you'll actually use. A 99esim installs during the flight over, connects to Vodafone Ireland as you clear passport control, and saves the trip to the Spar.
- No Irish address or passport form required
- Works across the Republic and seamlessly into Northern Ireland (UK)
- Keeps your home number for bank 2FA and Apple Pay
- 3 GB covers a long weekend of Dublin pubs, Cliffs of Moher and Ring of Kerry
How Irish networks handle 99esim
99esim rides on Vodafone Ireland's wholesale network — the largest by coverage in Ireland, especially in rural Connemara, the Wild Atlantic Way and the Burren. 5G is live in all county capitals and along the M50-M7-M8 motorway spine. Irish Rail's Enterprise to Belfast, InterCity to Cork and Galway lines all have reliable trackside coverage, though the Dublin Dart dips briefly around Bray Head.
Arriving at an Irish airport
DAA-operated airports (Dublin, Cork) have full 5G at every gate and the bus stops. Regional airports have solid 4G. Activate before boarding — Vodafone latches on immediately, useful because Irish airport wi-fi is email-gated and taxi apps need data from the start.
Ireland's main hub. Aircoach 700 or Dublin Bus 41 to the centre (45 min) keeps signal along the M1 and North Circular Road. Terminal 2 has the fastest 5G.
Southern gateway. Bus 226 to Cork Kent Station (25 min) keeps full 4G. Perfect for pre-loading route to West Cork or the Wild Atlantic Way before leaving.
Gateway to the Cliffs of Moher and the Burren. Bus 343 to Limerick (50 min) and car rentals at the terminal. 4G holds along the N18 to Galway.
Small but strategic for Donegal and northwest. Bus transfers are limited — most visitors rent cars. Signal holds on the N17 south to Sligo and north to Donegal town.
Gateway to the Ring of Kerry. Bus to Killarney (20 min) is infrequent — most rent a car. Coverage holds on the N22 and deep into the Gap of Dunloe.
Where your free eSIM works best
What 3 GB actually gets you in Ireland
Irish trips lean on Google Maps for the winding coastal roads, weather apps (Irish weather changes every 20 minutes) and pub-photo uploads. A realistic breakdown:
Ireland-specific travel tips
Rural signal gaps are real
Parts of Connemara, Donegal's Glenveagh, and the Beara Peninsula have genuine black spots where no operator has masts. Vodafone is the best of a rural bunch. Download offline OS maps and Google Maps tiles before venturing onto R-roads in the west.
Northern Ireland is a seamless switch
Cross from the Republic into NI (Belfast, Derry, Giant's Causeway) and your eSIM switches to EE (the UK 99esim profile) automatically. Same plan, same 3 GB, no extra charge. Just beware Google Maps switching currencies in routing.
Wild Atlantic Way drives
The 2,600 km coastal route has patchy signal in places. Main N-roads (N67, N59) hold Vodafone 4G throughout. R-road detours along the Dingle Peninsula and Slieve League cliffs can drop. Keep offline maps loaded.
Dublin Airport Metrolink delay
The long-promised Dublin Metro from the airport is still under construction (expected 2030s). For now, the Aircoach and 41 bus are your best signal-friendly options — full 4G the whole route.
Aran Islands and ferry routes
Inis Mór, Inis Meáin and Inis Oírr have Vodafone coverage near the villages but thin across dolmen fields and cliff walks. Rosslare-Cherbourg and Dublin-Holyhead ferries lose signal mid-Irish-Sea — download Netflix or podcasts before sailing.
Travelers who used 99esim in Ireland
"Drove the Wild Atlantic Way from Cork to Donegal. Signal held in the towns, dropped briefly on a few R-roads — offline maps saved me."
"Long weekend in Dublin — the eSIM handled Temple Bar chaos, DART to Howth and Uber rides. Never swapped a SIM."
"Crossed from Dundalk into Belfast for a day trip. Phone switched to the UK network seamlessly. Felt like magic."
Frequently asked — Ireland edition
Does the free eSIM work in Northern Ireland?
Yes. Northern Ireland is part of the UK 99esim profile — crossing the border from Dundalk to Newry or Derry to Letterkenny triggers a seamless switch to EE. Same 3 GB, same plan, no extra charges. You won't notice the handover.
Will it work on the Wild Atlantic Way?
Mostly. Vodafone Ireland covers the main N-roads and all major towns. Smaller R-roads into Connemara and remote Donegal peninsulas can drop for 10-20 km stretches. Offline maps are essential for those sections — your eSIM will reconnect near the next village.
Does it work on the Dublin DART and Luas?
Yes. DART coastal rail has steady 4G from Howth to Greystones with brief drops near Bray Head tunnel. Luas tram lines (Red and Green) stay connected throughout — the Luas is mostly street-level so signal is never an issue.
Can I use the eSIM on ferries from Dublin or Rosslare?
Yes near-coast. Irish Sea crossings to Holyhead or Cherbourg stay connected for the first 15-20 km off Dublin or Rosslare. Open-sea crossings go dark for 2-4 hours and reconnect on the UK or French side (both covered on your 99esim).
Is 5G included in the free plan?
Yes. Vodafone Ireland has 5G in all county capitals, along the M50 orbital and the Cork-Limerick-Galway motorway corridor. If your device supports 5G, the free eSIM uses it automatically. Data counts the same as 4G.
What if I run out mid-trip?
Top up instantly in the 99esim app — Ireland-specific add-ons start at €2.99 for 1 GB. No auto-renewal, no stored-card charges, no detour to a Spar shop required.
Free eSIM in other European countries
Your 3 GB works in all 39 countries. Here are a few more popular destinations:
See all 39 countries →
Ready to claim your free 3 GB in Ireland?
Install the 99esim app, create a free account, and your data is live in about 90 seconds.