Area Code 4791 – Monaghan/Clones
The phone area code for Monaghan/Clones is 4791 (international format +3534791). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 4791
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📍 Geographic Location of Monaghan/Clones
Geographic Overview
The +353 4791 prefix is a geographic National Destination Code (NDC) assigned to the Monaghan/Clones area in County Monaghan, Republic of Ireland. This code falls within the larger 047 numbering range, which serves the northern part of County Monaghan and adjacent areas. The administrative center for this code is Monaghan Town, while Clones is the second principal town in the region. The area is characterized by its proximity to the border with Northern Ireland, and the code is used for fixed-line PSTN and VoIP services.
Dialing Formats
When dialing a number with the 4791 prefix, the standard national format is 047 91 xxx xx (where xxx xx represents the subscriber number). For international callers, the format is +353 47 91 xxx xx. Note that the leading '0' in the national format is dropped when adding the +353 country code. For example, a local number might be 047 91 12345, which becomes +353 47 91 12345 internationally.
Caller Instructions
- Local callers within the 047 area can dial the 7-digit subscriber number without the area code, but this is less common now; most calls require full national dialing.
- National callers from other parts of Ireland must dial 047 91 xxx xx.
- International callers should dial their international access code (e.g., 00 or +) followed by 353, then 47 91 xxx xx.
Overlay and Numbering Considerations
There is no overlay code for this area; the 047 NDC is exclusive to the Monaghan region. However, due to number portability, a number with this prefix may be routed to a different geographic location or even a mobile network, but the prefix remains associated with the original geographic area for administrative purposes.
Regulatory and Technical Notes
The prefix is allocated by ComReg, the Irish telecommunications regulator, and is used by various fixed-line operators. Since 2007, Ireland moved to an 8-digit subscriber numbering scheme for geographic numbers, but the NDC length varies. The 047 NDC is followed by a 7-digit subscriber number, making the total national significant number (NSN) 9 digits (including the leading 0). This is consistent with the E.164 standard.