Area Code 668 – Tralee/Dingle/Killorglin/Cahersiveen
The phone area code for Tralee/Dingle/Killorglin/Cahersiveen is 668 (international format +353668). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 668
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Tralee/Dingle/Killorglin/Cahersiveen
Geographic Coverage and Administrative Jurisdiction
The +353 668 area code is a geographic National Destination Code (NDC) assigned to the southwestern region of County Kerry, Ireland. This code serves the principal towns of Tralee, Dingle, Killorglin, and Cahersiveen, along with the surrounding rural and coastal communities. Administratively, the region falls under Kerry County Council, and the code is allocated to the ComReg (Commission for Communications Regulation) numbering plan for fixed-line PSTN and VoIP services.
Dialing Formats and Caller Instructions
For callers within Ireland, the national trunk prefix '0' is used before the area code, resulting in the format 066 8XX XXXX for local calls. Note that the area code is '066' when dialed domestically, but the international format omits the leading zero, yielding +353 668 XX XXXX for calls originating from outside Ireland. This distinction is critical for proper call routing.
Local callers within the same NDC can often dial the seven-digit subscriber number without the area code, depending on their specific exchange and service provider. However, for clarity and consistency, it is recommended to always use the full national or international format. Foreign callers must replace the '+' with their international access prefix (e.g., '00' in most European countries, '011' from the US/Canada) before dialing +353 668.
Overlay and Numbering Considerations
As of the latest ComReg updates, the 066 area code (which includes the 668 prefix) does not have an overlay code. The region is served exclusively by the 066 NDC, and number portability allows subscribers to retain their numbers when switching between fixed-line operators, provided they remain within the same geographic area. This code is not used for mobile services; mobile numbers in Ireland begin with 08x prefixes and are non-geographic.
Practical Examples
- International call to a Tralee business: +353 668 123 456
- Domestic call from Dublin: 066 8 123 456
- Local call within Tralee (if supported): 8 123 456
Businesses in this region often display their numbers in international format to facilitate global client contact. When dialing from a mobile phone in Ireland, the national format (066 8...) is typically used, but the international format (+353 668...) is equally valid and may be required for VoIP services.