business phone · 7 min read
How to Call Ireland from the US
How to call Ireland from the US: dial 011 + 353 + area code (drop the 0) + local number. Dublin, Cork, mobiles, costs, and Northern Ireland (+44) explained.
To call Ireland from the US, dial 011 + 353 + area code (drop the 0) + local number.
Dublin example: 011 353 1 XXX XXXX. Mobile example: 011 353 87 123 4567.
The 011 is the US exit code. The 353 is the Republic of Ireland country code. The leading 0 on Irish area codes and mobile prefixes is a domestic trunk digit — it gets replaced by 011 353, not stacked after it.
Northern Ireland is different. Belfast and other Northern Ireland numbers use +44 (the UK country code), not +353. If someone gives you a number starting with 028, you are calling Northern Ireland: dial 011 44 28 XXXX XXXX from the US. See the how to call the UK from the US guide for the full UK breakdown.
Step-by-step: how to dial Ireland from the US
- Dial 011 — the US international exit code. Every US international call starts here. On a mobile keypad you can long-press
0to get+, which is equivalent. - Dial 353 — the Republic of Ireland country code assigned by the ITU.
- Dial the area code without the leading 0. Dublin’s national area code is 01 → drop the 0, dial 1. Cork’s is 021 → dial 21. Galway’s is 091 → dial 91.
- Dial the local subscriber number in full, exactly as written.
- Press call.
Full pattern: 011 353 <area code minus 0> <local number>.
If you see an Irish number already in international format — for example +353 1 234 5678 — replace the + with 011 on a US landline, or dial it as-is with + from a US mobile.
Irish area codes reference
| City | National area code | Dial from US (after 011 353) |
|---|---|---|
| Dublin | 01 | 1 |
| Cork | 021 | 21 |
| Galway | 091 | 91 |
| Limerick | 061 | 61 |
| Waterford | 051 | 51 |
| Drogheda | 041 | 41 |
| Kilkenny | 056 | 56 |
| Wexford | 053 | 53 |
| Sligo | 071 | 71 |
| Tralee | 066 | 66 |
All follow the same rule: strip the leading 0 before dialing. Dublin’s area code is 1 digit after dropping the 0; most others are 2 digits.
How to call an Irish mobile from the US
Irish mobile numbers start with 08X in national format. Active prefixes are 083 (Vodafone), 085 (Three), 086 (Vodafone/legacy), 087 (Vodafone), and 089 (Tesco/others).
Drop the leading 0 just as you do for area codes:
| National format | From US landline | From US mobile |
|---|---|---|
| 087 123 4567 | 011 353 87 123 4567 | +353 87 123 4567 |
| 083 456 7890 | 011 353 83 456 7890 | +353 83 456 7890 |
Mobile-to-mobile calls from the US cost slightly more per minute than landline destinations on most carrier plans. Irish mobiles cannot be distinguished from landlines by number length — both are 7 local digits after the area/mobile prefix — but the 08X prefix pattern identifies them immediately.
Republic of Ireland vs Northern Ireland: the critical distinction
This is the single most common dialing error on Ireland calls.
Republic of Ireland (26 counties, capital Dublin): country code +353. Regulated by ComReg (Commission for Communications Regulation).
Northern Ireland (6 counties, capital Belfast): country code +44, area code 028. Regulated by Ofcom (UK).
From the US, Belfast numbers dial exactly like any UK number: 011 44 28 XXXX XXXX. The 048 prefix that lets Republic of Ireland residents call Northern Ireland cheaply is a domestic shortcut — it does not work from US phones.
If someone gives you an Irish number and it starts with +44 28, you need UK dialing, not Ireland dialing. If it starts with +353, you need the Ireland sequence above.
When to call Ireland: time zone guide
Ireland observes Western European Time (WET, UTC+0) in winter and Irish Standard Time (IST, UTC+1) in summer. Summer time starts on the last Sunday of March and ends on the last Sunday of October.
| US time zone | Winter offset | Summer offset |
|---|---|---|
| Eastern (ET) | Ireland is +5 hours | Ireland is +6 hours |
| Central (CT) | Ireland is +6 hours | Ireland is +7 hours |
| Mountain (MT) | Ireland is +7 hours | Ireland is +8 hours |
| Pacific (PT) | Ireland is +8 hours | Ireland is +9 hours |
A 9:00 AM Eastern call reaches Dublin at 2:00 PM (winter) or 3:00 PM (summer) — comfortably in business hours. A 3:00 PM Eastern call lands at 8–9 PM Dublin time. For US West Coast teams, morning calls are the only overlap with Irish business hours.
Note: Ireland and the US don’t change clocks on the same date. There is a 2–3 week window each spring and autumn where the offset is one hour different from the table above.
What it costs to call Ireland from the US
Three cost tiers apply, same as any international destination:
Per-minute carrier rates (no plan): roughly $0.05–$0.25/min to Irish landlines, $0.10–$0.35/min to Irish mobiles. AT&T’s published standard rate is approximately $4/min — an extreme outlier that reflects the no-plan penalty.
Carrier international add-on packages: typically $5–$15/month for discounted rates. Reduces cost to roughly $0.10–$0.20/min.
VoIP business phone: the lowest per-minute cost with no monthly add-on. DialPhone business phone routes US-to-Ireland calls over the same infrastructure used for UK and EU destinations. Current rates at DialPhone pricing.
For teams regularly calling Dublin, Cork, or Galway — sales teams reaching Irish tech clients, pharma ops, or staffing firms with Irish candidate pools — a VoIP business number eliminates the guesswork on monthly spend.
Mobile calling, WhatsApp, and Irish communication norms
WhatsApp is the dominant personal messaging and voice channel in Ireland. Most Irish adults use it as their primary non-carrier call option, and Ireland-US families rely on it heavily. If you are calling a personal contact in Ireland, expect WhatsApp to be their preference.
For business calls, WhatsApp is less reliable as a professional channel. Irish businesses — particularly in Dublin’s tech and financial services sectors — expect standard PSTN or VoIP calls. Many corporate switchboards do not accept WhatsApp.
SMS reaches any Irish number without an app requirement. For business outreach across the Irish diaspora in the US or for US companies with Irish operations, standard business SMS via a VoIP number is more reliable than WhatsApp-only outreach.
Ireland as a US-to-EU business calling hub
Dublin is the European headquarters for Google, Meta (Facebook), Apple, LinkedIn, Twitter/X, Salesforce, and dozens of other US tech companies. Ireland also hosts major pharma operations: Pfizer, Johnson & Johnson, Eli Lilly, and Bristol-Myers Squibb all have significant Irish manufacturing or EU coordination sites.
For US companies dealing with EU operations, Ireland is frequently the first dialing destination. Call volume and call quality to Ireland are tier-1 business concerns — not occasional personal calls.
STIR/SHAKEN caller ID authentication matters here. When a US business number calls a Dublin office, STIR/SHAKEN attestation level (A, B, or C) determines whether the call displays the business name or shows as “Spam Risk” on the recipient’s screen. DialPhone numbers carry full A-level STIR/SHAKEN attestation. See STIR/SHAKEN explained for how this works for outbound international calls.
The ~35 million Americans of Irish descent represent another high-volume calling segment — family contacts, remittance calls, and holiday volume spikes around March and December.
Numbers to avoid calling from the US
Not all Irish numbers are reachable from abroad:
- 1850 / 1890 (LoCall): Only work inside Ireland. From the US, these either fail or incur premium rates. Ask for the geographic number alternative.
- 1800 (Irish freephone): Free only within Ireland. US callers may not connect, or may pay international rates.
- 15xx (premium rate): Equivalent to US 900 numbers. Avoid unless you know the cost.
- 112 / 999 (emergency): Do not dial Irish emergency numbers from the US.
FAQ
Frequently asked questions
What is Ireland's country code?
The country code for the Republic of Ireland is +353. From a US landline you dial 011 353 before the Irish area code (minus its leading 0) and the local number. From a US mobile you can use + instead of 011, so the prefix becomes +353.
Is Northern Ireland the same country code as the Republic?
No. Northern Ireland uses the United Kingdom country code +44 — the same as England, Scotland, and Wales. The Republic of Ireland uses +353.
To call Belfast (Northern Ireland) from the US: 011 44 28 XXXX XXXX. To call Dublin (Republic) from the US: 011 353 1 XXX XXXX. The border between the two is invisible on a map but critical on a phone keypad.
How do I call an Irish mobile from the US?
Irish mobile numbers start with 08X in national format (083, 085, 086, 087, 089 are the active prefixes). Drop the leading 0 when dialing from the US.
Example: an Irish mobile 087 123 4567 becomes 011 353 87 123 4567 from a US landline, or +353 87 123 4567 from a US mobile.
What time zone is Ireland in?
Ireland observes Western European Time (WET, UTC+0) in winter and Irish Standard Time (IST, UTC+1) in summer. Summer time runs from the last Sunday in March to the last Sunday in October.
In winter, Dublin is 5 hours ahead of US Eastern and 8 hours ahead of US Pacific. In summer, the gap grows to 6 hours ahead of Eastern and 9 hours ahead of Pacific.
How much does it cost to call Ireland from the US?
Per-minute carrier rates without an international plan run roughly $0.05–$0.25 per minute to Irish landlines and $0.10–$0.35 to Irish mobiles. AT&T's standard rate is approximately $4 per minute without an add-on.
VoIP business phone services like DialPhone charge a flat per-minute rate well below carrier list pricing, with no monthly international add-on required.
Can I call Irish LoCall numbers (1850, 1890) from the US?
No. Irish LoCall numbers beginning 1850 or 1890 are only accessible from inside Ireland. They cannot be dialed from the US. If you need to reach an Irish business that only publishes a LoCall number, contact them by email first and ask for their direct geographic number (01, 021, 091, etc.).
Why did my call to Ireland fail?
The three most common reasons are: (1) leaving the leading 0 in the Irish area code or mobile prefix — dial 011 353 1 not 011 353 01; (2) forgetting the 011 exit code on a US landline; (3) international calling disabled on your US line — most carriers gate this by default for fraud control. Enable it in your account before dialing.
Does WhatsApp work for calling Ireland from the US?
Yes, WhatsApp is extremely popular in Ireland and is the default channel for Ireland-US personal calls. Both parties need the app and a data or Wi-Fi connection. For business calls — sales, support, vendor calls — a VoIP business phone number is more professional and works without the recipient having any app installed.
Related guides
- How to call the UK from the US — includes Northern Ireland (+44)
- Number porting guide — keep your number when switching to VoIP
- STIR/SHAKEN explained — why caller ID matters for international business calls
- DialPhone business phone
- DialPhone pricing
- Start free trial
- AI Receptionist — handle inbound calls from Irish contacts automatically
About the author
Growth Operations Lead at DialPhone
Darshan leads Growth Operations at DialPhone, where he owns three interconnected programs: the comparison content operation, the open VoIP Pricing Dataset, and the test-call methodology used to verify every pricing claim published on the site.
His research process starts with hands-on product trials and live vendor quotes — not marketing pages. Pricing figures are cross-checked against actual invoices and re-verified on a rolling quarterly cycle, with the underlying dataset kept public for independent re-verification. That dataset now covers 40+ VoIP and virtual-number providers across the US and Canada market.
Darshan also leads DialPhone's AI receptionist evaluation program, running structured test-call scenarios across English, Spanish, and French to assess transcription accuracy, intent routing, and escalation behavior. Methodology notes and raw scoring are archived in the research section.
For factual corrections or dataset discrepancies, Darshan can be reached at the DialPhone editorial address. Verified corrections are published as errata with a changelog date — no silent edits.