Area Code 6599 – Ennis/Ennistymon/Kilrush

Geographic Coverage and Administration

The +353 6599 prefix is a geographic National Destination Code (NDC) assigned to the western region of Ireland, specifically serving the towns of Ennis, Ennistymon, and Kilrush in County Clare. This code forms part of the larger 065 area code group, which covers much of County Clare, and is administered by ComReg, the Irish telecommunications regulator. The 6599 prefix is used for fixed-line PSTN and VoIP services within this area, and it is not allocated to mobile networks.

Dialing Formats

When dialing a number with the 6599 prefix from within Ireland, callers must use the national trunk prefix 0 followed by the area code and subscriber number. The local format is (065) 99xxxxx, where the subscriber number is typically 7 digits long. For example, a local call to a business in Ennis would be dialed as 065 9912345.

For international callers, the number must be dialed using Ireland's country code +353, omitting the leading zero. The international format is +353 65 99xxxxx. For instance, a caller from the United States would dial 011 353 65 9912345 to reach the same number.

Geographic Significance

Ennis, the largest town in County Clare, is the primary administrative and commercial center served by this prefix. Ennistymon, located to the west, is a heritage town known for its waterfalls and traditional music, while Kilrush is a coastal town on the Shannon Estuary. The 6599 prefix is essential for local businesses, government offices, and residents in these communities, providing a clear geographic identity for callers.

Numbering and Overlay Considerations

Ireland's geographic numbering plan does not currently impose overlays for the 065 area code; however, number portability allows subscribers to retain their numbers when switching providers, even if they move within the same geographic area. This means that a number with the 6599 prefix may not always be physically located in the traditional exchange area, but it remains associated with the region for routing purposes.

Caller Instructions

For local callers within the 065 area, it is possible to dial the 7-digit subscriber number directly without the area code, depending on the specific local dialing plan. However, for clarity and to avoid misdialing, it is recommended to always use the full national format. For international callers, ensure you use the correct exit code for your country, followed by Ireland's country code and the full number without the leading zero.