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National telephone numbers are defined by national or regional numbering plans, such as the European Telephony Numbering Space, the North American Numbering Plan (NANP), or the UK number plan. Within a national numbering plan, a complete destination telephone number is typically composed of an area code and a subscriber telephone number.
In 2008 an additional digit was added to cellphone numbers, while land numbers remained the same. The previous convention for cell numbers in Lima was usually 9XXX XXXX, though 9-XXX XXXX was also used. With the new 9-digit number, the form 9XX XXX XXX is becoming increasingly common as opposed to 9 XXXX XXXX, 9X XXX XXXX or 9XXXX XXXX.
The non-dialable PBX (private branch exchange) extension number should be separated by words "extension" or "ext." in the national language after the phone number. When the PBX is capable of direct inward dialing, the extension number should be written directly after the phone number, without using any distinct symbols. If there is a need to ...
Each of the digits 2 to 9, and sometimes 0, corresponded to a group of typically three letters. The leading two or three letters of a telephone number indicated the exchange name, for example, EDgewood and IVanhoe, and were followed by 5 or 4 digits. The limitations that these systems presented in terms of usable names that were easy to ...
Users can now switch carriers and keep their cell phone numbers, including prefix 89: Telenor (Bulgaria) Users can now switch carriers and keep their cell phone numbers, including prefix 988: Other mobile networks: Users can now switch carriers and keep their cell phone numbers, including prefix Burkina Faso +226: 70: 8: Telmob: 71: 72: 74 ...
A telephone prefix is the first set of digits after the country, and area codes of a telephone number. In the North American Numbering Plan countries (country code 1), it is the first three digits of a seven-digit local phone number, the second three digits of the 3-3-4 scheme. In other countries, both the prefix and the number may have ...
This rounded the total number of digits in a subscriber telephone number to ten: a three-digit area code, three-digit central office code, and four digits for each line. This fixed format defined the North American Numbering Plan as a closed numbering plan , [ 27 ] as opposed to developments in other countries where the number of digits was not ...
Dial plans in the public switched telephone network referred to as dialing procedures. [2] The collection of permissible digit patterns, so called digit-maps, for a private telephone system or for customer premise equipment, such as an analog telephone adapter (ATA) or an IP phone, is sometimes also called dial plan. A pattern may be as short ...