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In Hungary, telephone numbers are in the format 06 + area code + subscriber number, where the area code is a single digit 1 for Budapest, the capital, followed by a seven digit subscriber number, and two digits followed by either seven (for cell phone numbers) or six digits (others). for other areas, cell phone numbers or non-geographic numbers ...
The use of numbers starting in 555-(KLondike-5) to represent fictional numbers in U.S. movies, television, and literature originated in this period. The "555" prefix was reserved for telephone company use and was only consistently used for directory assistance (information), being "555–1212" for the local area.
The 555 exchange is not reserved in area codes used for toll-free phone numbers. This led to the video game The Last of Us accidentally including the number to a phone-sex operator. [9] The number "555-2368" (or 311-555-2368) is a carryover from the "EXchange 2368" ("Exchange CENTral") number common in telephone advertisements as early as the ...
Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]
The first automated dial exchanges in the Bell System were deployed in 1919. [5] When seven-digit telephone numbers were first assigned in New York in 1920, [6] the three-letter four-number (3L-4N) system had represented the number in the format PENnsylvania 5000. Similar systems were used in Boston, Chicago, and Philadelphia.
[5] All-number calling was first field-tested in Wichita Falls, Texas starting on January 19, 1958, with the installation of a new dial exchange. [3] The results indicated a substantial reduction of dialing errors over new system installations that used the 2-5 numbering system. In small communities the new system was met with little resistance ...
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 different lengths. It shows which exchange the remaining numbers refer to. A full telephone number is usually ...
061 BBB BBB for a Limerick number (6 digit) 098 BBBBB for a Westport number (5 digit) 0404 BBBBB for a Wicklow number (5 digit) Area codes may also be surrounded by brackets, but this practice is falling out of use, as local dialing without the area code is optional on landlines and the area code must always be dialled on mobile phones.