Telephone numbers in the Republic of Ireland

General structure of Irish numbering

Irish area codes vary in length, between one and three digits (excluding the leading 0), and subscribers' numbers are between five and seven digits.

As optional local dialling is facilitated, Irish geographic numbers cannot begin with 0 (trunk prefix), 1 (special number prefix) or 999 (emergency services). However, mobile numbers use the full range of digits, as local dialling is not supported on mobile networks, and the area code must always be dialled.

A migration to a standard format, 0xx xxx xxxx, is in progress; however, to avoid disruption, this process is only being carried out as needed, where existing area codes and local numbering systems have reached full capacity. There is currently no plan to move to a closed numbering system.

Number formats

Irish geographic numbers vary in length from area to area, but follow standard formats within each area code.

The area code, or prefix, is normally separated by a space, or less commonly, may be displayed in parentheses (brackets). Numbers are usually grouped into easy to read clusters, separated by spaces or hyphens for ease of use.

The use of spaces is recommended by ComReg for ease of compatibility with online services, such as linking to a phone number in a mobile browser, copying and pasting into mobile diallers etc

Other characters, such as / or . are not used as separators.

Area codes / prefixes are always separated from the subscriber number. Merging or reformatting these tends to cause confusion or make numbers look unfamiliar.

While formats vary, numbers are usually printed (e.g. in telephone directories) as follows:

Geographic:

• 01 XXX XXXX – Dublin area
• 0XX XXX XXXX – All other 7-digit areas
• 0XX XXX XXX – 6-digit areas
• 0XX XXXXX – 5-digit areas
• 0X0X XXXXX – 5-digit areas

Non-geographic

• 1800 XXX XXX – Freephone/Toll Free
• 0818 XXX XXX – Standard Rate

Mobile

• 08X XXX XXXX

Mobile M2M (Machine to Machine)

• 088 XXXXX XXXXX

Alphanumeric dialling, using letters as mnemonics for advertising etc is supported, but is rarely used.

Mobile services

Mobile phone numbers start with the prefix 08x and are part of a closed numbering plan, which means that a mobile phone number must have 10 digits. Calls to landlines and other mobiles require the area code on a mobile phone.

New numbers are assigned on prefixes and ranges managed by a specific operator. However, as full mobile number portability has been in operation since 2003, it is no longer possible to reliably identify which network a particular number is on. For example, a newly assigned Three number would begin with 083, but may have been ported to another operator in the meantime.

Mobile network operators (MNOs)

Mobile virtual network operators (MVNOs)

Direct to voicemail number

Mobile phone numbers also have their own voicemail number. To access this, the number 5 should be put after the prefix. For example, the mobile number 08x xxx xxxx has the voicemail number 08x 5 xxx xxxx.

On some networks, when the direct to voicemail number is called, the voicemail greeting for that network is played (e.g. Vodafone, eir Mobile), while others request a phone number followed by the voicemail greeting for that number (e.g. Three). Users can press the hash key (#) to gain access to the voicemail box.

Speed dial short numbers to contact carriers

• 1901 – eir
• 1902 – Digiweb
• 1903 – Tesco Mobile
• 1904 – BT Ireland
• 1907 – Vodafone Ireland
• 1908 – Virgin Mobile Ireland
• 1910 – Magnet Networks
• 1913 – Three Ireland
• 1977 – NUACOM Ireland
• 1923 – Lycamobile Ireland

Services provided

• Ambulance
• Garda Síochána
• Fire and rescue
• Irish Coast Guard
• Cliff and mountain rescue

SMS emergency service

112 can also be contacted by SMS. While the service is open to all users, it is primarily aimed at the deaf community.

Pre-registration used to be required. Further information can be found at Sending a text to 112.

Premium rate voice

Irish premium rate telephone numbers start with 15 and are read in two-digit blocks e.g. 1550 is "fifteen fifty".

The rates given below are from ComReg and are indicative only. One must check with their specific telephone service provider for exact rates.

SMS short codes

All prices are per SMS.

SMS Sender ID Registry

On 4 June 2025, the Commission for Communications Regulation (ComReg) launched the SMS Sender ID Registry in Ireland as part of measures to combat SMS phishing (smishing), fraudulent text messages and the impersonation of legitimate organisations. The registry was established to help mobile network operators identify and prevent text messages using unauthorised sender identities from reaching consumers.

The registry primarily concerns alphanumeric SMS Sender IDs, which are identifiers containing letters, such as a business or organisation's name, displayed instead of a telephone number when sending application-to-person (A2P) text messages. For example, an SMS sent using the alphanumeric Sender ID "Three" displays that name as the sender rather than a numerical telephone number. Organisations, including banks, healthcare providers, delivery companies and public services, are required to register the alphanumeric Sender IDs they use with ComReg. Registration may be completed directly by an organisation or by its SMS service provider on its behalf.

The mandatory registration requirement does not generally apply to numerical telephone numbers or SMS short codes. However, holders of certain numerical short codes may register them as Sender IDs. Eligible codes include emergency numbers (112 and 999), customer support codes (19XX), five-digit messaging and payment codes (5XXXX), and harmonised European social service codes (116XXX). Ordinary mobile telephone numbers do not require registration under the scheme.

Alphanumeric Sender IDs must generally contain between three and eleven characters, including at least one letter. Permitted identifiers may contain numbers and certain special characters, but generic names that do not sufficiently identify an organisation are prohibited.

Check phone number associated with line / automatic number announcement circuit (ANAC)

• 199000 – reads out the subscriber's telephone number.

Check preset carrier

Check which carrier a subscriber is using for each category of call:

• 19800 – international calls
• 19822 – local calls
• 19801 – calls to other parts of the Republic of Ireland, Irish mobile numbers and landlines in Northern Ireland.

PSTN lines and some ISDN services

Services on Virgin Media Ireland cable network

(Codes are unique to Virgin Media Ireland and do not follow ETSI guidelines)

Mobiles

• GSM supplementary service codes – All of Ireland's mobile providers use the standard GSM codes to control special services such as call forwarding, barring, call waiting etc.

1990–1994

Dublin (01) changes to 7-digits.

• All local numbers with the area code 01 changed from 6–digits to 7–digits in five stages between 1990 and 1994:
  • On 2 April 1990, numbers beginning with 23, 24, 26, 27, 28, 70 and 79 were prefixed with 6.
  • On 8 April 1991, numbers beginning with 8 and 69 were prefixed with 2.
  • On 4 April 1992, numbers beginning with 4 and the remaining 6–digit numbers beginning with 2 were prefixed with 8. Numbers beginning with 95 and 98 were prefixed with 2.
  • On 24 April 1993, numbers beginning with 75, 780, 781, 782, 783 and 784 were prefixed with 4, while numbers beginning with 60, 61, 68, 71, 76, 77, 785and 789 were prefixed with 6, and numbers beginning with 72, 73, 74, 786, 787 and 788 were prefixed with 8.
  • On 16 April 1994, numbers beginning with 3 were prefixed with 8, while numbers beginning with 5 and 9 were prefixed with 4.

1998–2000

• All local numbers with the area code 041 changed from 5–digit to 7–digit. Numbers in the Drogheda minimum numbering area (MNA) were prefixed by 98 and in the Ardee MNA by 68.
• All local numbers with the area code 042 changed from 5–digit to 7–digit. Numbers in the Dundalk MNA were prefixed by 93, in the Carrickmacross MNA by 96 and the Castleblayney MNA by 97.
• All local numbers with the area code 049 changed from 5–digit to 7–digit. Numbers in the Cavan MNA were prefixed by 43, in the Cootehill MNA by 55, in the Oldcastle MNA by 85 and the Belturbet MNA by 95.
• All local numbers with the area code 065 changed from 5–digit to 7–digit. Numbers in the Ennis MNA were prefixed by 68, in the Ennistymon MNA by 70 and the Kilrush MNA by 90.
• All local numbers with the area code 066 changed from 5–digit to 7–digit. Numbers in the Tralee MNA were prefixed by 71, in the Dingle MNA by 91, in the Cahirciveen MNA by 94 and the Killorglin MNA by 97.

Cork (021) changes to 7 digits.

• All local numbers with the area code 021 changed from 6–digits to 7–digits in two stages.
  • From September 1998, numbers beginning with 40 were prefixed with 2, while numbers beginning with 43 and 33 were prefixed by 7.
  • From February 2000, numbers beginning with 2, 3, 5, 6, 7, 8 or 9 were prefixed with 4.

• The prefix 080 was previously used for calls to Northern Ireland, but this changed to 048 following the Big Number Change.

2002–2003

• Area codes in parts of counties Meath and Offaly were merged into the single area code 046, including Navan, Nobber, Kells, Trim, Enfield and Edenderry. The 0405 area code was abolished. All local numbers became 7–digit.
• All local numbers with the area code 056 changed from 5–digit to 7–digit. Numbers in the Kilkenny MNA were prefixed by 77, in the Castlecomer MNA by 44 and the Freshford MNA by 88.
• Area codes in County Carlow and parts of counties Kildare, Kilkenny, Laois and Wicklow were merged into a new area code 059, including Carlow, Bagenalstown, Athy and Baltinglass. The area codes abolished were 0503, 0507 and 0508. All local numbers became 7–digit.
• Area codes in County Sligo and County Leitrim and parts of counties Cavan, Donegal and Roscommon were merged into the single area code 071, including Sligo, Boyle, Carrick-on-Shannon, Drumshanbo, Manorhamilton. The area codes abolished were 072, 078 and 079. All local numbers became 7–digit.
• The majority of area codes in County Donegal were merged into the single area code 074, including Letterkenny, Lifford, Ramelton, Buncrana, Dungloe and Donegal. The area codes abolished were 073, 075 and 077. All local numbers became 7–digit.
• Area codes in parts of counties Galway, Offaly, Roscommon, Westmeath and Longford were merged into a new area code 090, including Athlone, Banagher (North), Ballinasloe, Roscommon, Portumna. The area codes abolished were 0902, 0903 and 0905. All local numbers became 7–digit.
• Area codes in parts of counties Galway, Mayo, Roscommon and Sligo were merged into the single area code 094, including Castlebar, Swinford, Claremorris, Ballinrobe, Castlerea and Ballaghaderreen. The area codes abolished were 0907 and 092. All local numbers became 7–digit.

2005–2006

• All local numbers with the area code 044 changed from 5–digit to 7–digit. Numbers in the Tyrrellspass MNA were prefixed by 92, in the Mullingar MNA by 93 and the Castlepollard MNA by 96.
• Area codes in County Wexford and parts of counties Carlow and Wicklow were merged into the single area code 053, including Wexford, Enniscorthy, Ferns and Gorey. The area codes abolished were 054and 055. All local numbers became 7–digit.
• Area codes in counties Laois and Offaly and parts of counties Galway and Westmeath were merged into the single area code 057, including Portlaoise, Abbeyleix, Tullamore and Birr. The area codes abolished were 0502, 0506 and 0509. All local numbers became 7–digit.

2008–2009

• All local numbers with the area code 023 changed from 5–digit to 7–digit. Numbers in the Bandon MNA were prefixed by 88.
• All local numbers with the area code 043 changed from 5–digit to 7–digit. Numbers in the Longford MNA were prefixed by 33 and in the Granard MNA by 66.
• All local numbers with the area code 052 changed from 5–digit to 7–digit. Numbers in the Clonmel MNA were prefixed by 61, in the Cahir MNA by 74 and the Killenaule MNA by 91.
• All local numbers with the area code 064 changed from 5–digit to 7–digit. Numbers in the Killarney MNA were prefixed by 66 and in the Rathmore MNA by 77.

Mobile numbering

• Mobile numbering became 7–digit in the mid–1990s

Possible future changes

All local numbers with the area code 01 (Dublin and surrounds) are currently 7–digits, but may change to 8–digits in the future, although breaking the city into separate area codes would match the rest of the national system.

A review and public consultation on the future of Ireland's numbering plan was published in 2013.

Defunct non-geographic codes

• 1850 – Local rate, shared cost, untimed
• 1890 – Local rate, shared cost, timed
• 076 or +353 76 – VoIP services

All of the above were withdrawn on 1 January 2022.

Defunct access codes

• 16 – former international access code
• 03 – formerly used for calls to Great Britain. The format was 03 + NDC code + local number.
• 08 – formerly used for Northern Ireland landlines
• 084 – formerly used for Belfast landlines

Defunct operator services

• 10 – national operator assistance (withdrawn in 2007)
• 114 – international operator assistance (withdrawn in 2007)
• 910 – operator-assisted calls to some areas without direct dialling (withdrawn in the early 1980s)
• 1190 – Telecom Éireann national directory assistance (withdrawn in the early 2000s and replaced with 11811, originally 190)
• 1197 – Telecom Éireann UK directory assistance (withdrawn in the early 2000s and replaced with 11818, originally 197)
• 1198 – Telecom Éireann international directory assistance (withdrawn in the early 2000s and replaced with 11818, originally 198)
• 191 – Telecom Éireann repair services (withdrawn in the late 1990s)
• 196 – telemessaging services, whereby callers could ask an operator to send a postcard with a printed message (withdrawn in the late 1990s)

A range of numbers from 192, 193 and 194 were once used for various Telecom Éireann customer service and account service lines.

Defunct information services

• 1191 – speaking clock (withdrawn on 27 August 2018)

Historical Northern Ireland access codes

• before 2000: 08 followed by Northern Irish area code and phone number e.g. Belfast 01232 xxx xxx was reached by dialling 08 01232 xxx xxx.

Belfast could previously be reached by dialling 084 in place of the UK area code 0232.

Historical Great Britain access codes

Until the early 1990s, the 03 numbering range was originally used for calls to Great Britain, including the Channel Islands and the Isle of Man, with the Irish prefix 030 replacing the UK trunk code 0.

Calls to British cities using the director telephone system were also possible using shorter codes:

• 031 – London (01)
• 032 – Birmingham (021)
• 033 – Edinburgh (031)
• 034 – Glasgow (041)
• 035 – Liverpool (051)
• 036 – Manchester (061)

031 was replaced with 03071 and 03081 when 01 was split into the area codes 071 and 081 in 1990.

Use of 03 for this purpose was discontinued in 1993, when the international access code changed from 16 to 00, with calls to Great Britain (but not Northern Ireland) requiring the country code +44 and the area code in full.