Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 571 [Rate centres in NPA 571] [Dial plan for NPA 571]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-594 4 Washington Zone 17 VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-02-14   
571-594 5 Washington Zone 17 VA   1960 ATX TELECOMMUNICATIONS SERVICES, LTD-VA 236   2003-03-14   
571-594 6 Washington Zone 17 VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-04-01   
571-594 7 Washington Zone 17 VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-04-01   
571-594 8 Washington Zone 17 VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2011-12-06   
571-594 9 Washington Zone 17 VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-10-11   
571-595 A Washington Zone 19 VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-05-06   
571-595 0 Washington Zone 19 VA   5832 CORETEL VIRGINIA, LLC - VA 236   2018-07-13   
571-595 1 Washington Zone 19 VA   7189 COX VIRGINIA TELCOM, INC. - VA 236   2018-05-22   
571-595 2 Washington Zone 19 VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2019-02-04   
571-595 3 Washington Zone 19 VA   138E ONVOY, LLC VA 236   2018-06-16   
571-595 4 Washington Zone 19 VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-09-20   
571-595 5 Washington Zone 19 VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-09-15   
571-595 6 Washington Zone 19 VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-07-28   
571-595 7 Washington Zone 19 VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-05-07   
571-595 8 Washington Zone 19 VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-05-07   
571-595 9 Washington Zone 19 VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-05-06   
571-598 A Manassas VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
571-598 0 Manassas VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-01-31   
571-598 1 Manassas VA   8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2014-10-28   
571-598 2 Manassas VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-01-31   
571-598 3 Manassas VA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2014-10-28   
571-598 4 Manassas VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-10-13   
571-598 5 Manassas VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-10-13   
571-598 6 Manassas VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-01-31   
571-598 7 Manassas VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-10-27   
571-598 8 Manassas VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-10-27   
571-598 9 Manassas VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-10-27   
571-599 A Herndon VA   6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236      
571-599 0 Herndon VA   6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2014-10-11   
571-599 1 Herndon VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2016-12-03   
571-599 2 Herndon VA   7189 COX VIRGINIA TELCOM, INC. - VA 236   2015-07-14   
571-599 3 Herndon VA   7769 LEVEL 3 TELECOM OF VIRGINIA, LLC - VA 236   2015-07-31   
571-599 4 Herndon VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-12-09   
571-599 5 Herndon VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2015-07-14   
571-599 6 Herndon VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2017-04-06   
571-599 7 Herndon VA   8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2014-12-19   
571-599 8 Herndon VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-12-13   
571-599 9 Herndon VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-12-13   
571-600 A Dulles Metro VA   145J TERRA NOVA TELECOM INC. 236   2019-05-31   
571-600 0 Dulles Metro VA   145J TERRA NOVA TELECOM INC. 236   2019-05-31   
571-600 1 Dulles Metro VA   275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2019-06-27   
571-600 2 Dulles Metro VA   073H TELNYX LLC 236   2019-10-12   
571-600 7 Dulles Metro VA   5832 CORETEL VIRGINIA, LLC - VA 236   2019-07-31   
571-600 8 Dulles Metro VA   5832 CORETEL VIRGINIA, LLC - VA 236   2019-07-31   
571-600 9 Dulles Metro VA   5832 CORETEL VIRGINIA, LLC - VA 236   2019-07-31   
571-606 A Manassas VA BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
571-606 0 Manassas VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-03-05   
571-606 1 Manassas VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-03-05   
571-606 2 Manassas VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-04-18   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 >>

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.