555 (telephone number)wikipedia
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).
555 (telephone number)555555 telephone numberthe 555 exchange555 telephone number prefixfictitious phone number5-5-5fictitious number555 area code555-1234

Fictitious telephone number

fictitious telephone numberfictional telephone numbersPlaceholder telephone numbers
The central office code is also used for fictitious telephone numbers in North American television shows, films, video games, and other media in order to prevent practical jokers and curious callers from bothering telephone subscribers and organizations by calling telephone numbers they see in works of fiction.
In North America, the area served by the North American Numbering Plan (NANPA) system of area codes, fictitious telephone numbers are usually of the form (XXX) 555-xxxx.

North American Numbering Plan

Area codeArea codes<span style="white-space:nowrap;">Area code(s)
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).
In some works of fiction, phone numbers will begin with "KLondike 5" or KLamath 5, which translates to 555, an exchange that is reserved for information numbers in North America.

Telephone number

telephone numberphone numbertelephone numbers
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).
The use of numbers starting in 555- (KLondike-5) to represent fictional numbers in U.S. movies, television, and literature originated in this period.

Bruce Almighty

Tommy Tutone's song "867-5309/Jenny" and the cinematic release of Bruce Almighty displaying 776-2323 as a number to call God both led to misdialed calls in multiple area codes.
Since God contacts Bruce using an actual phone number rather than a number in the standard fictional 555 telephone exchange, several people and groups sharing this number subsequently received hundreds of phone calls from people wanting to talk to God, including a church in North Carolina (where the Minister was named Bruce), a Pastor in Northern Wisconsin and a man in Manchester, England.

Misdialed call

wrong numbermisdialled callsmisdialed call
Tommy Tutone's song "867-5309/Jenny" and the cinematic release of Bruce Almighty displaying 776-2323 as a number to call God both led to misdialed calls in multiple area codes.
This is often avoided by using reserved or invalid numbers (such as 555 (telephone number)), or by displaying a real area code and number which belongs to the publisher of the fictional work.

Area code 600

area code 600600610
The entire 555 exchange is reserved in all overlay North American toll-free area codes (800, 844, 855, 866, 877, 888) and in Canada's rarely used non-geographic area code 600.
There are 798 possible +1-600- exchange prefixes (200 to 999, with 555 and 911 not issued).

Directory assistance

directory assistancedirectory enquiries118 500
555-1212 is one of the standard numbers for this purpose throughout the United States and Canada.

Finder-Spyder

Finder-Spyder is a fictional brand of Web search engine that appears in numerous, otherwise unaffiliated television shows, used in the same manner as the fictitious 555 telephone number in TV and film.

Stingray (1985 TV series)

StingrayStringrayStingray'' (1985 TV series)
His background is shadowy; all that is known about him is that he advertises surreptitiously in newspapers, ostensibly offering a "'65 black Stingray, for Barter Only To Right Party" and including a telephone number (555-7687).

3-1-1

3-1-13113-1-1 system
This fictitious phone number was used in the 1979 horror film When a Stranger Calls; in the opening of the television series The Rockford Files; in the 1984 film Ghostbusters; and on two episodes of the second season of the TV series Mission: Impossible: episode 22 titled "The Killing" (on the killer's phone) and, fourth season, episode 12, titled "Time Bomb" (on a phone at a nuclear plant in a fictitious country).

Dirty Work (1998 film)

Dirty WorkDirty Work'' (1998 film)
Mitch and Sam open "Dirty Work", a revenge-for-hire business (the Dirty Work phone number is "555-0187", a fictitious number used later on Saturday Night Live.

Channel 37

channel 3737UHF Channel 37
Channel 37 is sometimes seen in fiction, the same way telephone numbers with the "555" telephone exchange prefix are used.

Suspension of disbelief

suspension of disbeliefsuspend disbeliefwilling suspension of disbelief

SAM 123

SAM 123 is a fictitious license plate number in the United States and Canada, often reserved for use as an example license plate, similar to the way the 555 telephone number is a fictitious telephone number prefix, to be used for creating example telephone numbers.

Telephone prefix

prefixtelephone prefixdialing prefix
In most, but not all, US telephone areas the prefix 555 is reserved for special services; in particular 555-1212 is telephone information in most areas.

Telephone numbers in the United Kingdom

+440141dialling code
This is similar to the use of fictitious telephone numbers in the United States and Canada starting with the digits 555.

Area codes 702 and 725

702725702 and 725
However, the triple-seven area code was reserved for the same reasons as was the similarly-recognizable 555 area code.

Automatic number announcement circuit

automatic number announcement circuitANACautomatic number announcement
555-1313 is one of the rare uses of the 555 exchange for other than the standard 555-1212 directory information line.