The country code for the USA, Canada, and 18 Caribbean and nearby islands, is +1. The plus sign means "insert your international access prefix here." The most common international access prefix is 00, but there are other prefixes used in many parts of the world.
That depends where you are calling.
To dial a number in another country, first dial the International Access Code. From the UK the International Access Code is 00. Next dial the Country Code of the country you are calling. Finally dial the Area Code and Local Number of the number you wish to call. For most numbers you need to OMIT the initial zero of the area code if one is shown in the number you see.
To call a British mobile from any overseas country - You dial the inernational access code for the UK (0044) then the mobile number WITHOUT the first zero. for example - to dial the mobile number 07974000000 you would dial 00447974000000
You CAN put your country code even if you dial locally - BUT - you'll be charged international call rate, as the exchange would treat it as any other international call ! In some places, you can't dial the country code for your own country. For example, North America is country code +1, but you cannot dial 011-1-area code-number. In other places, you can dial the country code for a local call and still be charged local rates.
To make a phone call or to fax from Argentina to the US a person will need to dial the country code first. To fax a number to the US dial the country code +1 followed by the fax number.
Dial 0011 + 1 + 907 + the local number in Alaska.
If you are trying to call a UK 0808 number, you may be able to dial it as 00 44 808, but you will likely still pay the international call charges for a call to the UK. If you are trying to call an international shared-cost number on country code +808, dial 00 808. The cost should be comparable to a domestic long-distance call.
You dial: 01155+the number you want to call.
First, dial 00, then the country code (1), and then the area code and phone number.
1 is the country code of the US. If you are outside of the US, you must dial 1 before any number to reach any number within the US. Every country has a different country code that you add to the beginning of a number in that country to dial a number in that country.
Dial 110
If you are in the US, Canada, or various Caribbean-ish islands that are part of the North American Numbering Plan (country code +1), you just dial 1 + area code + number. If you are elsewhere in the world, dial your international access prefix, followed by the country code 1, area code, and number.
To make a call to Moscow from the US you have to use the country code for Russia. The first three numbers you dial is 011 which is the US exit code. Next, dial the number 7 and the ten digit area phone number.