Ireland is country code +353. From the US, dial 011 353, and then the Irish domestic number without the leading zero.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
There are 49 different telephone area codes in the Republic of Ireland. The telephone country code is +353, and you must drop the trunk prefix from the Irish domestic telephone number to put it in international format.
Dublin is 01, or +353 1.
Cork is 021, or +353 21.
The entirety of Northern Ireland is in the UK's telephone area code 028, which is +44 28 in international format. Additionally, there is a special "shortcut" code for dialing from the Republic of Ireland to Northern Ireland: dial 048 in place of 028 or +44 28. There is no longer a "shortcut" code for dialing in the other direction.
The Republic of Ireland uses telephone country code +353, which is dialed as 00 353 from the UK. You must drop the trunk prefix 0 from the beginning of the Irish domestic number in international format, so, for example, Dublin's area code 01 becomes +353 1.
For many years, there were special shortcut dialling codes from the UK to some parts of the Republic of Ireland; however, all such shortcut codes have been discontinued.
There is a shortcut dialling code in the other direction, though: calls from the Republic of Ireland to Northern Ireland can be dialled by simply replacing UK area code 028 with the special shortcut code 048.
00353 is the international dialling code for the Republic of Ireland from anywhere in the UK - which includes England.
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.
The first telephone area codes were issued for the USA and Canada in 1947. The first telephone area codes were issued in the UK in 1958.
You can get a state-by-state listing of telephone area codes in India at the link below.
No, telephone area codes are discrete data.
A Texas telephone call will have a prefix with it's area code in it. Texas has many area codes. Below are some of the area codes.210214254281325361409430432469512682713806817830832903915936940956972979
Area codes are discrete data.
Before area codes, telephone areas in North America were defined by reference to the nearest large city.
Donegal is in the Republic of Ireland, not Northern Ireland. Its area codes are 071 and 074.
If you look at maps, you will not find area codes. Area codes can be found on area code locator websites. Another place to find area codes is in the telephone directory.
There are several dozen area codes in Brazil. Please be more specific.
0035321 + the local number
Country code +1, area codes 214, 972, and 469, with several more area codes for outer suburbs and other nearby areas.