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Country Calling Code (CCC) or ISD
What is Country Calling Code (CCC) or ISD?
✍: FYIcenter.com
Country Calling Code (CCC), also referred as ISD (International Subscriber Dialing) Code,
is a 1 to 3 digits number that enables International Direct Dialing (IDD)
into a country or region identified by this number.
Note that the Country Calling Code of your phone number is only useful to your international friends who want to call you.
For example, you live in New York have a land phone line with a local number of "123-4567" and an area code of "212". Your phone service provider supports phone calls at 3 levels:
So, you really have 3 phones numbers for 3 different types of phone call services:
Technically, your international friends can not dial your International Number, 1 (212) 123-4567, directly to reach you, because their phones are programmed by default to make National Calls within their country or region only. They must dial first the International Dialing Code (IDC) of their country or region to override the default.
For example, your friends in India must dial to 00-1-2121234567 to reach your phone, where since the International Dialing Code (IDC) for India is "00".
As you can see, making an International Call is not easy. People must remember and dial 3 chunks of numbers:
Here is a diagram that shows you how the Country Calling Code (CCC) is used in the dialing sequence of someone calling from India to US.
International Dialing Code | | Country Calling Code | ------------------- | | | | Area code | | | Local number v v v v Dialing Sequence: 00 1 202 1234567 Dialing Sequence: + 1 202 1234567
Please note that most of today's smart phones allows to use "+" as a shorthand dialing key to represent the International Dialing Code, regardless from which country or region you are dialing out. This is why you can print your US phone number in 2 formats:
00 1 (202) 123-4567 +1 (202) 123-4567
See the "International Country/Region Calling Code Search" tool to find the Country Calling Code of any given country or region.
⇒ International Country/Region Calling Code Search
⇐ Phone Number Related Terms and Tools
2020-05-04, 4355🔥, 0💬
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