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The state of Maryland is served by the following area codes: ... Numbering plan area 227 240 301: western Maryland, including its suburbs of Washington, D.C. 410 443 667:
Area code 445 was first proposed in July 2000 as an overlay code on numbering plan area 215/267. [1] However, these plans were delayed and then rescinded in 2003 by the Pennsylvania Public Utility Commission. [2] The need for new phone numbers in area codes 215/267 was delayed until 2018.
An area code overlay is a numbering plan area (NPA) in the North American Numbering Plan (NANP) that has multiple area codes assigned. Overlay complexes are used to add central office prefixes in an NPA to increase the number of available telephone numbers .
Look at the area code: Start by comparing the phone number’s area code to the list of area codes you should never answer. If it’s on the list, there’s a good chance there’s a scammer on ...
To find out the 25 poorest and richest area codes, GOBankingRates used the 2015 Census Community Survey, the most recent data available, to rank cities across the nation in order of mean household ...
Area code Additional overlay codes Parent of area code splits Location 215 [a] [b] 267, 445: Philadelphia and its immediately surrounding areas in the southeast corner of Pennsylvania 223: 717 [b] 267: 215 [b], 445: 272: 570 [b] 412 [a] [b] 878: Pittsburgh and its immediately surrounding areas in Allegheny County: 445: 215 [b], 267: 484: 610 [b ...
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Code Territory or use Date Notes 300: not in use; available for non-geographic assignment easily recognizable code (ERC) 301: Maryland (Silver Spring; Washington, D.C., suburbs; all counties which touch the Potomac River; Waldorf, Hagerstown, Frederick, Rockville, Cumberland; and land line telephones in western Maryland)