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1Code letters — The barque Pisagua. Her Code letters RJPT are flown on the jigger mast, above her ensign Code letters were a method of identifying ships before the introduction of modern navigation aids. Later, with the introduction of radio, code letters were… …
2Code division multiple access — This article is about a channel access method. For the mobile phone technology referred to as CDMA, see IS 95 and CDMA2000. Multiplex techniques Circuit mode (constant bandwidth) TDM · FDM  …
3ZIP code — Mr. ZIP promoted the use of ZIP codes for the USPS during the 1960s and 1970s. ZIP codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan,[1] is properly… …
4Country code top-level domain — For the full list of country code top level domains, see List of Internet top level domains. A country code top level domain (ccTLD) is an Internet top level domain generally used or reserved for a country, a sovereign state, or a dependent… …
5National Location Code — A map of England, Wales and Scotland showing the approximate boundaries of each NLC zone , as described in the accompanying table. In the context of the ticketing system of the British railway network, a National Location Code (NLC) is a four… …
6UK telephone code misconceptions — Widespread UK telephone code misconceptions, in particular brought on by the Big Number Change in 2000, have been reported by regulator Ofcom since publication of a report it commissioned in 2004.[1] Owing to the marked increase in demand for… …
7International Standard Recording Code — The International Standard Recording Code (ISRC), defined by ISO 3901, is an international standard code for uniquely identifying sound recordings and music video recordings . IFPI has been appointed by ISO as registration authority for this… …
8Postal code — For computer POST codes, see Power On Self Test. Postcodes are generally clearly visible outside Australia Post offices …
9Mobile Network Code — A Mobile Network Code (MNC) is used in combination with a Mobile Country Code (MCC) (also known as a MCC / MNC tuple ) to uniquely identify a mobile phone operator/carrier using the GSM/LTE, CDMA, iDEN, TETRA and UMTS public land mobile networks… …
10International Networks (country code) — International Networks is the name given by the International Telecommunications Union (ITU) to country calling codes 882 and 883, and serves as a catch all for telephone services not dedicated to a single country. Satellite telephone carriers,… …
