Area Code 99 – Kilronan
The phone area code for Kilronan is 99 (international format +35399). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 99
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Kilronan
Overview of Area Code +353 99
The +353 99 area code is a geographic destination code within the Irish national numbering plan, administered by the Commission for Communications Regulation (ComReg). It serves the town of Kilronan on Inishmore (Inis Mór), the largest of the Aran Islands, located in Galway Bay off the west coast of Ireland. This code is assigned to the fixed-line PSTN network and is used for landline telephone services in this remote island community.
Geographic Coverage and Administrative Jurisdiction
Kilronan is the principal settlement and ferry port on Inishmore, part of County Galway in the province of Connacht. The area code covers the entire island, including the villages of Kilmurvey, Onaght, and Gort na gCapall. Administratively, the island is part of the Galway County Council jurisdiction. The code is exclusively used for fixed-line services; mobile numbers on the island use the national mobile prefixes (e.g., 085, 086, 087, 088, 089).
Dialing Formats and Instructions
Local Dialing (within Ireland): When calling a Kilronan number from another part of Ireland, you must dial the national trunk prefix 0, followed by the area code 99 and the subscriber's 5-digit local number. For example, a local number might be formatted as 099 12345.
International Dialing (from abroad): To reach a Kilronan number from outside Ireland, dial the international access prefix (e.g., 00 from most countries, or + from mobile phones), then the Irish country code 353, followed by the area code without the leading zero (99) and the subscriber number. For instance, if the local number is 12345, the international format would be +353 99 12345.
Number Structure and Overlay Considerations
Irish geographic numbers are typically 7 to 8 digits long when including the area code. In the 099 area, the full national significant number (NSN) is 8 digits: the area code (99) plus a 5-digit subscriber number. There is no overlay code for this area; 099 is the sole geographic code for Kilronan. As of the latest ComReg numbering plan, no changes are pending for this code.
Caller Instructions
- Callers from within Ireland: Always use the trunk prefix 0 before the area code when dialing from a different geographic area. For example, from Dublin, you would dial 099 12345.
- Callers from outside Ireland: Drop the leading 0 and use the +353 country code. For example, from the UK, you would dial 00 353 99 12345 or +353 99 12345 from a mobile.
- Emergency and special services: Always dial 112 or 999 for emergency services, regardless of the area code.
Because Kilronan is a small island community, the number of fixed lines is limited, and the code is not used for mobile or VoIP services. For businesses or residents on Inishmore, having a 099 number indicates a local presence and is essential for local communications.