phone number
51Emergency telephone number — Many countries public telephone networks have a single emergency telephone number, sometimes known as the universal emergency telephone number or occasionally the emergency services number, that allows a caller to contact local emergency services …
52Telephone number — A telephone number or phone number is a sequence of digits used to call from one telephone line to another in a public switched telephone network. When telephone numbers were invented, they were short as few as one, two or three digits and were… …
53Toll-free telephone number — A toll free, Freecall, Freephone, or 800 number is a special telephone number, in that the called party is charged the cost of the calls by the telephone carrier, instead of the calling party. The cost of the call to the called party is usually… …
54555 (telephone number) — In North America, telephone numbers with the prefix 555 are widely used for fictitious telephone numbers in television shows, films, computer games, and other media. Not all numbers that begin with 555 are fictional mdash;for example, 555 1212 is …
55Mobile phone spam — is a form of spamming directed at the text messaging service of a mobile phone. It is described as mobile spamming, SMS spam, text spam or m spam. As the popularity of mobile phones surged in the early 2000s, frequent users of text messaging… …
56Premium-rate telephone number — Premium rate telephone numbers are telephone numbers for telephone calls during which certain services are provided, and for which prices higher than normal are charged. Unlike a normal call, part of the call charge is paid to the service… …
57Prepaid mobile phone — A prepaid mobile phone (pay as you go or prepaid wireless) is a mobile phone for which service is purchased in advance of use. By purchasing credit to use on a mobile phone network, a user can access a mobile phone network without ongoing billing …
58Websites and phone numbers in the Year Zero alternate reality game — The story of the Year Zero alternate reality game is primarily told through the Year Zero album and a number of fictitious, in game websites and phone numbers. The appearance of these websites and phone numbers from the year 2022 (Year 0 BA in… …
59Automatic number announcement circuit — An automatic number announcement circuit (ANAC) is a special telephone number that is meant to be used by phone company technicians and other telecommunications technicians to determine the phone number of a particular line. The way an ANAC works …
60Wrong number — A wrong number is a telephone number mistakenly dialed differently from intended, thereby reaching a different party than the one planned. The wrong number may have been dialed either because the caller accidentally entered the numbers… …
