DID Number Buying vs Traditional Telephone Number Identities

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To understand exactly how DID number buying functions, it’s important to understand how phone systems have evolved.

The traditional phone network is colloquially known as POTS, which stands for the “plain old telephone system.” Under the conventions of POTS, numbers only need india telegram to be unique within each area code. So, someone in Miami might have the same telephone number as someone in Los Angeles. However, adding the area code makes each of those numbers unique.

Nearly every country has its own telephone number writer, though there are some exceptions, as some countries share country codes. The International Telecommunication Union (ITU), an agency of the United Nations, allocates country and region codes under a plan called E.164. The plan doesn’t have any requirements about how each country or country code zone organizes its pool of numbers; the only stipulation is that no telephone number should be more than 15 digits in length.

Country and Area Codes
The United States is one of a handful of countries that doesn’t have its own country code. The code that the USA uses, “1,” is shared by several neighbouring countries, including Canada and Caribbean nations, including the Dominican Republic.

In the US, each area code is three digits long, and each number within that area code is seven digits in length. If you place many calls, you’ll quickly become familiar with different locations based on their area codes alone. For example, 305 is in Miami. Area code 304 applies to West Virginia, and code 306 applies to the province of Saskatchewan in Canada – clearly, you can’t work out where an area code is through proximity.

Cell phone area codes in many countries, such as the UK, are separate from the landline-based area codes and do not relate to specific locations. In the US, however, cell phones are given distinct central office codes (the first three digits of the local number), but use the same area codes as landline telephones.

All US telephone numbers originate with the US North American Numbering Plan Administration (NANPA), which is part of the Federal Communications Commission (FCC). NANPA allocates telephone numbers i