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Area codes 301, 240, and 227 — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Area_codes_301,_240,_and_227
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-09T20:21:24.229Z
SHA-256 of the archived text: 5432152c6b8b5c0c23d9789dd6b10bf8bd2b31a4d521802b71e829527e0e3716
Stable URL of this page: https://metraipolis.com/documento/dc_dccbf2226cb9

How to cite

Area codes 301, 240, and 227 — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Area_codes_301,_240,_and_227 (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_dccbf2226cb9 (Metraipolis archive dc_dccbf2226cb9, sha256 5432152c6b8b5c0c23d9789dd6b10bf8bd2b31a4d521802b71e829527e0e3716)

BibTeX

@misc{dcdccbf2226cb9,
  title = {Area codes 301, 240, and 227 — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Area_codes_301,_240,_and_227},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_dccbf2226cb9; sha256 5432152c6b8b5c0c23d9789dd6b10bf8bd2b31a4d521802b71e829527e0e3716},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Area_codes_301,_240,_and_227. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Area codes 301, 240, and 227 are telephone area codes in the North American Numbering Plan (NANP) for the western part of the U.S. state of Maryland. The numbering plan area (NPA) comprises Maryland's portion of the Greater Washington, D.C. metro area, portions of southern Maryland, along with rural western Maryland. This includes the communities of Cumberland, Frederick, Hagerstown, Gaithersburg, Potomac, Germantown, Bethesda, Rockville, Landover, Silver Spring, and Waldorf. Area code 301 was the first area code for all of Maryland, from 1947, when the area code system was created, until 1991, when everything from Baltimore eastward was split off as area code 410. In 1997, area code 240 was added as an overlay area code for the 301 territory. On June 14, 2023, a third overlay code, 227, was added to provide more central office prefixes for new telephone numbers.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (deposito sistematico; retro-catalogo: tutte le voci di Wikipedia in inglese, in ordine alfabetico).
Fonte: Wikipedia in inglese, voce «Area codes 301, 240, and 227» — https://en.wikipedia.org/wiki/Area_codes_301,_240,_and_227
Wikidata Q3150328: «North American telephone area codes in Maryland» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q3150328
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Area_codes_301,_240,_and_227?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1340715121, consultata il 2026-11-09T20:18:07.277Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 3693a6d69292d53c1f0b0e831f32af1ceb2a10dacf570e1726299458a99b1e06