🇮🇪Ireland eSIM: the regulator has written that nothing is registered

13 plans for Ireland, from 1 GB at $3.99 to 50 GB at $41.99, plus 6 unlimited-data tiers. 5 GB for 30 days costs $6.99 — 2nd cheapest of 56 in Europe, against a $7.99 median. Our retail prices from the operator catalogue, checked 28 September 2026.

The regulator has said in writing that Ireland does not register SIMs

Ireland does not register prepaid SIMs, and the regulator is the one saying so. Paragraph 6.90 of ComReg 23/52 reads: «Ireland is now one of only a few countries without mandatory SIM registration (for prepaid mobiles).» The document is a consultation titled Combatting scam calls and texts, dated 16 June 2023. That single sentence settles the question better than any absence of a law could.

The same paragraph explains what the missing rule would have required. Mandatory registration is described there as a policy obliging mobile operators to collect or verify a customer's identification credentials before a prepaid card is activated in their name. ComReg counted 157 countries requiring it as of early 2021. Ireland is not among them, and nothing has been enacted since to change that.

Not registering is a decision, and ComReg has said it may change

This is a policy choice rather than an oversight, and the regulator wrote down its reasoning. Paragraph 6.93 states: «At present, ComReg is not minded to require the registration of existing and new prepaid SIMs, given the potential for the future use of voice and SMS firewalls and Scam filters to combat scam communications.» The same sentence continues: «However, should such firewalls be absent, ComReg may well need to revisit this issue.» A door left open is not a door closed.

One paragraph in that document points at eSIM by name, and honesty requires quoting it. Paragraph 6.94 calls eSIM «a fresh start of sorts for mobile user registration» and says «operators should view eSIM as an opportunity to implement better KYC policies via eKYC». That is aimed at Irish operators signing up their own customers, not at a visitor roaming through. It is also encouragement in a consultation, not a rule anyone must follow.

The retention law puts every duty on the operator

The one Irish statute that touches identifying phone users addresses companies, not people. The Communications (Retention of Data) Act 2011 defines a service provider as «a person who is engaged in the provision of a publicly available electronic communications service or a public communications network». Section 3(1), as substituted in 2022, then reads: «A service provider shall retain, in accordance with section 12D, user data for a period of one year.» The obligation, the year and the penalty all belong to that company.

The word you would expect to find in a registration law is not in this one. We searched the enacted text on irishstatutebook.ie on 8 September 2026 and counted the occurrences ourselves. SIM appears zero times, roaming zero times, passport zero times. The 2022 amending Act, No. 25 of 2022, also widened «user» to a person using a service «whether or not that person has subscribed to the service», which broadens whose traffic is retained and asks that person for nothing.

The schedule has a line written for anonymous prepaid

Irish law does not merely omit registration, it plans around its absence. Schedule 2, Part 1, paragraph 5(d) of the 2011 Act lists among retained data: «in the case of pre-paid anonymous services, the date and time of the initial activation of the service and the cell ID from which the service was activated (mobile telephony only).» A branch written for anonymous prepaid services would be dead text in a country that registered everyone.

That is the same shape of proof, in English, that Iceland's statute gives in Icelandic. A legislature that expects a category to exist writes rules for it. We read this schedule in the enacted text on irishstatutebook.ie on 8 September 2026, and the wording survives in the version currently in force.

Where quotation ends and inference begins

One step in this reasoning is ours, and it should be labelled rather than smuggled. Whether an Irish operator's retention duty covers the traffic of a visitor roaming on its network is not stated anywhere in the Act. It follows from chaining two definitions, the widened «user» and the phrase «first processed by the service provider concerned» in section 3(1). We reached that reading; the statute does not spell it out.

The conclusion for you is unchanged either way, which is why the label costs nothing. If the duty reaches your traffic, it is the Irish operator that must keep the record. If it does not, no one keeps anything. Neither branch produces a form for you to fill in. **Carry no paperwork for the phone.**

Messenger calls are protected, and enforcement runs to the High Court

WhatsApp and FaceTime calls are protected in Ireland by a regulation with teeth. The European Union (Open Internet Access) Regulations 2019, S.I. No. 343/2019, implement the open-internet rules and give ComReg an enforcement route. Regulation 8(4) lets the Regulator «apply to the High Court for an order under paragraph (6)». Regulation 8(8)(a) allows that application to include «an order to pay to the Regulator such amount, by way of financial penalty».

Note where that penalty lands, because it is the pattern across all of this. The respondent is the provider that failed to comply, never the person holding the phone. We read the instrument on irishstatutebook.ie on 8 September 2026. No Irish rule found there restricts which applications you may run over your own data.

The text you are waiting for may never arrive

Ireland blocks a class of business text messages, and a bank code can land inside it. ComReg launched an SMS Sender ID Registry, announced on its site on 4 June 2025. From 3 July 2025 messages from unregistered Sender IDs were relabelled «Likely Scam». From 3 October 2025, in the regulator's own words, «these messages will be blocked and will not reach consumers». A Sender ID is the name a company puts in place of a number, like 234BANK.

You register nothing for this, and that is stated on the same page: «You also do not need to register your mobile phone number.» The duty belongs to the organisation sending the message. What we could not establish is whether the block also catches messages delivered to a visitor roaming on an Irish network, because the page does not say and we did not test it. If a one-time code fails to arrive in Ireland, this is a candidate cause worth knowing before you blame your bank.

The border this plan cannot cross

The Ireland profile stops at Northern Ireland, and our catalogue record says so outright: «This eSIM does not work in the Northern Ireland» (checked 8 September 2026). Belfast, Derry, the Giant's Causeway and the whole Causeway Coastal Route sit on the other side of that line. Northern Ireland is part of the United Kingdom, and this plan is sold for the Republic.

The border itself gives you no warning, which is what makes this expensive. There is no checkpoint, no barrier and often no sign beyond a change in road markings. A Dublin to Belfast drive crosses it in silence, and the data simply stops. **If your route touches the North, buy a plan that covers the United Kingdom as well.** Check the itinerary against the map before you pay, not at a petrol station in Newry.

What the Ireland profile actually is

You are buying data on one Irish network, and nothing else. Our Ireland catalogue record names the seller Fáilte and the network 3, listed at 4G rather than 5G, checked 8 September 2026. No Irish number comes with it. There are no minutes and no texts of its own, because the plan is sold as data only.

Nobody checks who you are at any point. The identity-check field on that record is empty on 8 September 2026, which puts the catalogue and ComReg in agreement. Buy it, receive a QR code by email, scan it. The purchase asks for a payment card and an email address, and for nothing about you.

Choosing a size when nothing has to be typed

Setup is the easy part in Ireland, so spend your attention on the size instead. The APN is automatic on iOS and on Android alike (our Ireland catalogue record, checked 8 September 2026). No value gets typed, so no value gets mistyped. That removes the commonest way an arrival goes wrong.

Seven metered sizes run from 1 GB up to 50 GB, and six unlimited windows run from 3 days to 30 (same record, 8 September 2026). Metered plans die when the data is gone. Day plans die on schedule. Dublin and Galway on café Wi-Fi lean towards a metered size; the Wild Atlantic Way, driven with the map on, leans towards a window instead.

The week before you fly

Do the fiddly part in your own kitchen. Scan the QR code over home Wi-Fi, give the line a name you will recognise later, and switch it straight back off. Buying early costs nothing, since the record allows 365 days between purchase and install (our Ireland catalogue record, checked 8 September 2026). The taxi rank at Dublin airport is a bad classroom.

Decide what each of your two lines is for while you are still calm. The home one keeps voice and bank texts, and its data roaming goes off. The Irish one does the data, and only once you land. **Switch data roaming on for the Irish line and for nothing else.**

Your first day, and the two lines

Turn the Irish line on, make it your data line, and open a web page. Nothing needs typing on either platform (our Ireland catalogue record, checked 8 September 2026), so a dead connection points at the roaming switch or at the wrong line being picked. Do not test with a call. There is no voice here to answer, and 999 or 112 still belongs to your home line or your handset's emergency dialler.

Separate two failures on that first evening, because they have nothing to do with each other. Every app dead means a setting on your phone. Everything working except one expected text means the Sender ID block above, which sits on your home line instead. A reinstall fixes the first and does nothing at all for the second.

Topping up before the counter empties

Buy more data from the order page you already have. The record marks the plan rechargeable on 8 September 2026, and no Irish rule touches that purchase. Do it while some data survives. With the tank empty you will be hunting a café password to finish paying.

Watch both numbers before a long drive west. A 30-day plan often dies of spent gigabytes days before its date. A 3-day unlimited plan dies on the date with the signal still full. Neither one taps you on the shoulder, and Connemara is a poor place to work out which happened.

FAQ

Before you fly: the checklist

Sources and freshness

ComReg 23/52, Combatting scam calls and texts, 16 June 2023, paragraphs 6.90, 6.91, 6.93 and 6.94 (used in sections 1 and 2, the FAQ and the checklist). comreg.ie answers HTTP 403 to us, so the PDF was read through the Internet Archive snapshot of 8 April 2025 — the document, read 8 September 2026.

Communications (Retention of Data) Act 2011, section 1 and Schedule 2 Part 1 paragraph 5(d), enacted text (used in sections 3 and 4) — the document, read 8 September 2026.

Communications (Retention of Data) (Amendment) Act 2022, No. 25 of 2022, sections 2 and 3, which substitute the definition of user and section 3(1) of the 2011 Act (used in sections 3 and 5) — the document, read 8 September 2026.

European Union (Open Internet Access) Regulations 2019, S.I. No. 343/2019, Regulation 8(4) to 8(8) (used in section 6 and the FAQ) — the document, read 8 September 2026.

ComReg launches SMS Sender ID Registry to help prevent text scams, 4 June 2025, for the Likely Scam label of 3 July 2025 and the block of 3 October 2025, read through the Internet Archive snapshot of 15 May 2026 (used in section 7, the FAQ and the checklist) — the document, read 8 September 2026.

Our Ireland catalogue record: operator, network, plan type, identity check, install window, activation, APN, recharge, the package ladders and the Northern Ireland exclusion, read 8 September 2026.

What we did not check: Nothing below is settled, and none of it is presented as settled. The consolidated text at revisedacts.lawreform.ie answered HTTP 504 to us on 8 September 2026, so the 2011 Act was read as enacted on irishstatutebook.ie together with the 2022 amending Act that carries the substitutions word for word; a later amendment outside those two texts would not have been caught. ComReg 26/24, a preliminary consultation on network interventions against scam SMS opened on 31 March 2026, went unread: comreg.ie answers HTTP 403 to us and the Internet Archive holds no snapshot of it. Both ComReg documents used above were read through the Internet Archive rather than from the regulator's own site for the same reason. Whether the Sender ID block of 3 October 2025 also filters messages delivered to a visitor roaming on an Irish network is not stated on that page and we did not test it. Whether the retention duty covers an inbound roamer's traffic is our inference from two definitions and is not written in the Act, which never uses the word roaming. On the product side the record gives no fair-use or speed condition on the unlimited tiers, no Wi-Fi sharing field, and does not say whether a top-up extends the running window or opens a new one. We measured no speeds and tested no rural coverage, and silence in a record is not a measurement.