Switching · Ireland

How to switch mobile provider in Ireland and keep your number

Pick the new SIM, ask to keep your number, let the new provider port it. Do not cancel the old plan first. The expensive mistakes are leaving a 12-month term early, and falling for an intro that doubles in month 13.

How switching works now

The gaining provider leads. You choose the new plan, tick keep-my-number, and they handle the port with your old provider. That is why cancelling first is the worst move: you can create your own outage.

This is consumer SIM-only. Business accounts and some niche prepay brands can still ask for extra identifiers. Follow the checkout, but still do not kill the old SIM until the new one works.

Keep your number

Keeping the number is the default ask, not a special extra. You authorise the port. You do not run a separate cancellation to “free” the number.

If the name on the old account is wrong, the port fails. Check billing name and date of birth before you submit.

Step-by-step checklist

StepWhat to doWhy
1Pick the plan by host radio and thereafter, not the logo.48 / Clear / GoMo are the €12.99 floor on Three / Vodafone / Eir.
2Order the new SIM or eSIM. Tick keep my number.The new provider starts the port. eSIM: Vodafone, Three, Eir, GoMo, Sky, Lycamobile. Plastic only: 48, Clear, Tesco, Virgin, An Post.
3Enter old-account details exactly as held.Mismatched name or DOB is the usual fail.
4Keep the old SIM in the phone until the new one has signal.Avoids a gap if the port is delayed.
5Test calls, texts and data. Then stop paying the old plan if it was rolling.Fixed-term plans may still have an ETF. Check before you jump.

Need the ranking first? Best mobile in Ireland. Need the three-way? 48 vs GoMo vs Clear.

Early termination vs 14-day cooling-off

These are not the same right. Cooling-off is about the new distance-sale contract. An ETF is about leaving the old minimum term early.

14-day cooling-offEarly termination fee (ETF)
Applies toThe new plan you just bought online or by phoneThe old plan, if you are still inside a 12- or 24-month term
What it doesLets you walk away from the new contractLets the old provider bill remaining months or a set exit fee
If you used the serviceReasonable usage can still be chargedUsage is beside the point. The term is the point.
Rolling monthly (48, Clear, GoMo)Still applies on the new saleUsually nothing material to leave, once the current month is paid
12-month (Virgin, Sky, Elevate)Still 14 days on a distance saleLeaving after day 14, inside the term, can cost

The retailers we list quote a 14-day cooling-off on the plans in our catalog. Read the order summary. Cooling-off does not erase a valid ETF on the old contract.

Common mistakes to avoid

  • Cancelling the old plan before the port completes.
  • Choosing Tesco Elevate or Eir Connect for the intro, then ignoring the thereafter (€30 and €29.99).
  • Picking a brand before checking which host radio actually works indoors.
  • Assuming Lycamobile “unlimited” stays at full speed after 100 GB. It drops to 256 kbps.

Host map: MVNO explained. Contract types: bill pay vs prepay.

About the author
Mobile Networks Analyst

Róisín Kelly leads matched.ie’s mobile coverage and plan comparisons. She has driven over 15,000 km testing 4G and 5G signals across Ireland for Three, Vodafone, eir and Virgin Mobile.

7 years mapping real-world mobile performanceCertified Mobile Network Engineer (Ericsson & Nokia)Focus on rural coverage, data speeds and international roamingRegularly updates matched.ie’s mobile coverage heatmaps

Frequently asked questions

Can I keep my number when switching mobile provider in Ireland?+

Yes. Number porting is standard. The new provider ports it. You keep the number.

Do I need to cancel my old mobile plan first?+

Usually no. Do not cancel first. Start with the new provider and ask to keep the number. Keep the old SIM live until the new one works.

Do I need a PAC or URN code in Ireland?+

Ireland is not the UK PAC process for mainstream consumer switches. The gaining provider leads the port. If a checkout still asks for an account number or date of birth, enter them exactly as the old provider holds them.

How long does a mobile switch take?+

A straightforward SIM-only port is often done in a day or two once both sides have matching account details. Keep the old SIM until you have signal on the new one.

What is the cooling-off period on a new mobile plan?+

Distance sales in Ireland generally carry a 14-day cooling-off right. The retailers we list quote 14 days. If you used the service, reasonable usage charges can still apply.

Can I switch if I am still in contract?+

Yes, but the old provider can charge an early termination fee if the minimum term has not ended. Cooling-off on the new plan does not wipe that ETF.

What details should match for a smooth number port?+

Account-holder name, account number where asked, and date of birth or other ID must match the old provider’s records. A married-name mismatch is a common fail.

Which cheap unlimited should I switch to?+

48 on Three radio, Clear on Vodafone, GoMo on Eir. All €12.99 unlimited 5G, rolling monthly. See 48 vs GoMo vs Clear.

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