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Phone numbers whose exchanges begin with 1 are also occasionally used as fictional numbers. Under the North American Numbering Plan, all telephone exchanges run from 200 to 999 with similar restrictions on telephone area codes.
Caller ID spoofing is a spoofing attack which causes the telephone network's Caller ID to indicate to the receiver of a call that the originator of the call is a station other than the true originating station. This can lead to a display showing a phone number different from that of the telephone from which the call was placed.
555 (telephone number) The telephone number prefix 555 is a central office code in the North American Numbering Plan, used as the leading part of a group of 10,000 telephone numbers, 555-XXXX, in each numbering plan area (NPA) (area code).
Area codes in Afghanistan are two digits long. It is common to write phone numbers as (0xx) yyy-yyyy, where xx is the area code. The 0 prefix is for long-distance dialing from within the country. International callers should dial +93 xx yyyyyyy . Area codes for common cities are: 093 xx yyyyyyy: Afghanistan. 020 yyy yyyy: Kabul.
A rejection hotline is a phone number which delivers a pre-recorded message telling the caller that the caller is rejected by the person who gave the caller that number. This project was set up as a practical joke by Jeff Goldblatt in 2001.
Telephone numbers in the Netherlands are administered by the Ministry of Economic Affairs, Agriculture and Innovation of the Netherlands. The telephone numbering plan may be grouped into three general categories: geographical numbers, non-geographical numbers, and numbers for public services.
The Brazilian telephone numbering plan uses a two-digit area code plus eight-digit local phone numbers for landlines and nine digits for mobile lines. Public utility services use short phone numbers (usually three digits), always starting with 1.
To call in the Republic of the Congo, the following format is used: yy zz xxxxx Calls within Republic of the Congo. +242 yy zz xxxxx Calls from outside Republic of the Congo. The NSN length is nine digits.
Italian telephone numbers are defined by an open telephone numbering plan that assigns subscriber telephone numbers of six to eleven digits. In addition, other short codes are used for special services.
Telephone numbers in Nigeria use an open numbering plan. They are composed of a combination of an area code and a local line or subscriber telephone number. Area codes consist of one digit ( Lagos, Ibadan and Abuja) or two digits. Local telephone numbers contain from five to seven digits, and may vary within the area code.