exchange area

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• exchange area —    Geographic area in which phone services and prices are the same …   IT glossary of terms, acronyms and abbreviations

• exchange —    A defined area served by one or more central offices of a communications common carrier within which the carrier furnishes service at the exchange rate and under the regulations applicable in that area prescribed in the carrier s filed tariffs …   IT glossary of terms, acronyms and abbreviations

• Area code 613 — is an area code for Ottawa, Kingston, and surrounding southeastern Ontario, Canada. It used to bound 514 before 450 was created, and until 1993 area code 416 before the introduction of area code 905. 613 also originally covered most of… …   Wikipedia

• Area codes 905 and 289 — Area code 905 (with overlay area codes 289 and 365) is a telephone dialling area in southern Ontario. It includes the Niagara Peninsula, Hamilton, Oshawa, and the suburban Greater Toronto Area. It was assigned in October 1993, as a split from… …   Wikipedia

• Area code 867 — is the area code for the three Canadian territories in the Arctic far north.+1 867 was created on October 21, 1997 from portions of two existing Canadian area codes. It has the largest land area of any area code in the North American Numbering… …   Wikipedia

• Area codes 416 and 647 — Area code 416 is one of the original 86 area codes from 1947, and currently serves the single rate centre of Toronto, Ontario. It has been split twice: the western portion of 416 became area code 519 in 1953, and in 1993 the remaining portion of… …   Wikipedia

• Exchange bias — or exchange anisotropy occurs in bilayers (or multilayers) of magnetic materials where the hard magnetization behavior of an antiferromagnetic thin film causes a shift in the soft magnetization curve of a ferromagnetic film. The exchange bias… …   Wikipedia

• Area code 250 — is an area code for most of the Canadian province of British Columbia, including Vancouver Island. It was created on October 19, 1996 as a split of area code 604. [http://www.nanpa.com/pdf/old pl/IL%2095 08 007.pdf] The area code also serves the… …   Wikipedia

• Area code 403 — is a telephone area code in the Canadian province of Alberta, encompassing the southern half of the province. Prior to 1997, the 403 area code encompassed the whole province of Alberta, the Yukon and the western half of the Northwest Territories …   Wikipedia

• Area code 450 — is a telephone area code in the Canadian province of Quebec, encompassing the off island suburbs of Montreal (which is the area code 514 and now 438). The area code is also shared by several small communities in an adjacent part of Ontario: some… …   Wikipedia

• Area codes 418 and 581 — Area code 418/581 is a telephone area code in the Canadian province of Quebec, encompassing the eastern portion of the province. When created in 1947, its boundaries were depicted as generally the eastern half of Quebec, but in 1957, northwestern …   Wikipedia