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Telecommunications in Jamaica include radio, television, fixed and mobile telephones, and the Internet.
The international mobile subscriber identity or IMSI is a number that uniquely identifies ever user of a cellular network. It is stored as a 64-bit field and is sent by the mobile device to the network. It is also used for acquiring other details of the mobile in the home location register (HLR) or as locally copied in the visitor location register. To prevent eavesdroppers from identifying and tracking the subscriber on the radio interface, the IMSI is sent as rarely as possible and a randomly-generated TMSI is sent instead.
The North American Numbering Plan (NANP) is a telephone numbering plan that encompasses twenty-five distinct regions in twenty countries primarily in North America, including the Caribbean. Some North American countries, most notably Mexico, do not participate in the NANP.
A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing. Telephone numbering plans are defined in each of administrative regions of the public switched telephone network (PSTN) and they are also present in private telephone networks. For public number systems, geographic location plays a role in the sequence of numbers assigned to each telephone subscriber.
213 is the number following 212 and preceding 214.
212 is the natural number following 211 and preceding 213.
The Type 214 is a diesel-electric submarine developed by Howaldtswerke-Deutsche Werft GmbH (HDW). It features diesel propulsion with an air-independent propulsion (AIP) system using Siemens polymer electrolyte membrane (PEM) hydrogen fuel cells. The Type 214 submarine is derived from the Type 212, but as an export variant it lacks some of the classified technologies of its smaller predecessor, the most important of which is probably the non-magnetic steel hull, which makes the Type 212 submarine difficult to detect using a magnetic anomaly detector.
North American area codes 718, 347, and 929 are New York City telephone area codes in the boroughs of The Bronx, Brooklyn, Queens, and Staten Island, as well as the Marble Hill section of Manhattan. They are overlaid by area code 917, which covers the entirety of New York City.
Area code 907 covers the state of Alaska, except for the small southeastern community of Hyder, which uses area code 250 and area code 236 of neighboring Stewart, British Columbia.
"Yellow Submarine" is a 1966 song by the Beatles, written by Paul McCartney and John Lennon, with lead vocals by Ringo Starr. It was included on Revolver and issued as a single, coupled with "Eleanor Rigby". The single went to number one on every major British chart, remained at number one for four weeks, and charted for 13 weeks. It won an Ivor Novello Award "for the highest certified sales of any single issued in the UK in 1966". In the US, the song peaked at number two on the Billboard Hot 100 chart and became the most successful Beatles song to feature Starr as lead vocalist.
The Kaichū type submarine submarines were double-hulled medium-sized submarines of the Imperial Japanese Navy during World War II. They were derived from the Kaigun-shiki Chū-gata Sensuikan .
Area codes 817 and 682 are Texas telephone area codes for numbers in Fort Worth and most of the western portion of the Metroplex. Area code 817 was created as a flash-cut sometime during 1953, but available databases do not indicate from which area code it was split, as all original area codes were created in October 1947. Based on proximity, however, it was probably split from area codes 214 and 915. In a message posted to the Telecom Digest mailing list and newsgroup comp.dcom.telecom Carl Moore reported that 817 was created mostly in part from 915 as well as a small part from 214.
318 is the natural number following 317 and preceding 319.
The Type 209 is a class of diesel-electric attack submarine developed exclusively for export by Howaldtswerke-Deutsche Werft of Germany. The original variant was designed in the late 1960s. Despite not being operated by the German Navy, five variants of the class have been successfully exported to 13 countries, with 61 submarines being built and commissioned between 1971 and 2008.
German submarine U-214, was a Type VIID mine-laying U-boat of Nazi Germany's Kriegsmarine during World War II.
The Tridente-class submarines, also designated as U 209PN, are diesel-electric submarines based on the Type 214 submarine developed by Howaldtswerke-Deutsche Werft GmbH (HDW) for the Portuguese Navy.
