This is the code you need to dial OUT from a country. It is also referred to as the IDD code (International Direct Dialing) or ISD code (International Subscriber Dialing)
This is the code you need to dial IN to a country. Each country is assigned a unique country code.
This is the code for a part of the country. It is usually a general area or a city. Some countries are not large enough to warrant their own code, so will have the country code 1 and use the area code to define the country.
This is the local number you would like to call.
Dialing Code for Japan is 81
Here is some useful travel information about Japan.
ISO 2 digit Code
ISO 3 digit Code
Area (SQ KM)
This page helps you call from to Japan using international country codes.
Area Codes for Japan are also supplied. Country Code 81 is for Japan.
The dialing code is also described as phone code 81 or dialing code 81 and is sometimes described as a calling code or international dialing code.
The dialing code for Japan is 81.