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There is an international format for recording a telephone number containing the country code, settlement code and telephone number, and the national format containing the settlement code and telephone number. To record Ukrainian telephone numbers, telephone codes for settlements do not have an initial zero, long-distance prefix: 0.
The presentation of a telephone number with the plus sign indicates that the number should be dialed with an international calling prefix, in place of the plus sign. The number is presented starting the country calling code. This is called the globalized format of an E.164 number, and is defined in the Internet Engineering Task Force RFC 2806. [6]
For most countries, this is followed by an area code, city code or service number code and the subscriber number, which might consist of the code for a particular telephone exchange. ITU-T recommendation E.123 describes how to represent an international telephone number in writing or print, starting with a plus sign ("+") and the country code.
It provides guidelines for the presentation of telephone numbers, email addresses, and web addresses in print, on letterheads, and similar purposes. As described by the standard, + is the international prefix symbol, should precede the country code, and serves to identify the number following as the international telephone number.
This is a list of Simple Mail Transfer Protocol (SMTP) response status codes. Status codes are issued by a server in response to a client's request made to the server. Unless otherwise stated, all status codes described here is part of the current SMTP standard, RFC 5321. The message phrases shown are typical, but any human-readable alternative ...
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 , [ 25 ] as opposed to developments in other countries where the number of digits was not ...
In the US, the caller's name, or CNAM information, is not sent during a call. Rather, the terminating carrier is responsible for providing the Caller ID information to its customer. The terminating carrier performs a database lookup using the caller's phone number to obtain the name information to display with Caller ID.
List of area codes Old format New format [1] Place/service +251 1 xxxxxx +251 11 1xxxxxx: Addis Ababa North +251 1 xxxxxx +251 11 2xxxxxx: Addis Ababa West +251 1 xxxxxx +251 11 3xxxxxx: Addis Ababa Southwest +251 1 xxxxxx +251 11 4xxxxxx: Addis Ababa South +251 1 xxxxxx +251 11 5xxxxxx: Addis Ababa Central +251 1 xxxxxx +251 11 kkkk: Addis ...