Essex has several different telephone area codes. To call the UK from the Republic of Ireland, replace the leading 0 of the UK domestic number with 00 44.
Witham, Essex, is in area code 01376, or +44 1376 from outside the UK.
The country code and area code of Letterkenny, Ireland is 353, (0)74.
The country code and area code of Carlow, Ireland is 353, (0)59.
01375 is the area code for Grays Thurrock in Essex.
01206
The country code and area code of Ennis, Ireland is 353, (0)65.
The country code and area code of Clonmel, Ireland is 353, (0)52.
The country code and area code of Portlaoise, Ireland is 353, (0)57.
The country code and area code of Longford, Ireland is 353, (0)43.
The country code and area code of Castlebar, Ireland is 353, (0)94.
The country code and area code of Dundalk, Ireland is 353, (0)42.
The country code and area code of Drogheda, Ireland is 353, (0)41.