Area Code — 571

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Rate centers: WSNGTNZN19, HERNDON, WSNGTNZN17, LEESBURG, MANASSAS, ARCOLA, WSNGTNZN08, HAYMARKET, DALE CITY, BRADDOCK, ENGLESIDE, INDENDNTHL, TRIANGLE, OCCOQUAN, LORTONMTRO, DULLESMTRO, DULLES

Companies: OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC, COMCAST PHONE OF VIRGINIA, INC., VERIZON VIRGINIA, INC., CELLCO PARTNERSHIP DBA VERIZON WIRELESS, NEW CINGULAR WIRELESS PCS, LLC - DC, COX VIRGINIA TELCOM, INC., YMAX COMMUNICATIONS CORP., BANDWIDTH.COM CLEC, LLC, CAVALIER TELEPHONE, LLC, SPRINT SPECTRUM L.P., US LEC OF VIRGINIA, LLC, AT&T LOCAL, XO VIRGINIA, LLC, NATIONSLINE VIRGINIA, INC., MULTIPLE OCN LISTING, USA MOBILITY WIRELESS, INC., NEXTEL COMMUNICATIONS, INC., BROADWING COMMUNICATIONS, LLC, CORETEL VIRGINIA, LLC, LEVEL 3 COMMUNICATIONS, LLC, MCIMETRO ACCESS TRANSMISSION SERVICES LLC, ATX TELECOMMUNICATIONS SERVICES, LTD, LIGHTWAVE COMMUNICATIONS, LLC - MD, TELEPORT COMMUNICATIONS GROUP, INC. - DC, DSLNET COMMUNICATIONS VA, INC., RNK, INC., FIBERNET OF VIRGINIA, INC., VERIZON SOUTH INC. (CONTEL), PAETEC COMMUNICATIONS, INC., MCI WORLDCOM COMMUNICATIONS, INC., BROADVIEW NETWORKS, INC., CBEYOND COMMS, TCG VIRGINIA, INC., OPENBAND OF VIRGINIA, INC., NEUTRAL TANDEM-WASHINGTON, DC., LLC - DC, BROADWING COMMUNICATIONS, LLC - DC, GLOBAL CROSSING TELEMANAGEMENT, INC., CORE COMMUNICATIONS, INC. - MD, LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC., CTC COMMUNICATIONS CORP., CAVALIER EAST LLC - MD, TW TELECOM OF DC LLC - DC, ALLEGIANCE TELECOM OF VIRGINIA, INC., STARPOWER COMMUNICATIONS, LLC, CAVALIER EAST LLC

List of 571 Area-Code Phone Number Prefixes

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