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 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-253 8 Washington Zone 17 VA BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-10-11   
571-253 9 Washington Zone 17 VA BTVLMD12CMA  5562 METROPCS, INC. 236   2013-09-16   
571-254 A Triangle VA   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
571-254 0 Triangle VA   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2012-01-26   
571-254 1 Triangle VA   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2012-01-26   
571-254 2 Triangle VA   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2012-01-26   
571-254 3 Triangle VA   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2012-01-26   
571-254 4 Triangle VA   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2012-01-26   
571-254 5 Triangle VA   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2012-01-26   
571-254 6 Triangle VA   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2012-01-26   
571-254 7 Triangle VA   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2012-01-26   
571-254 8 Triangle VA   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2012-01-26   
571-254 9 Triangle VA   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2012-01-26   
571-255 A Washington Zone 8 VA WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236      
571-255 0 Washington Zone 8 VA WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2009-01-18   
571-255 1 Washington Zone 8 VA WASLDCRGDS0  367E YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 236   2009-02-10   
571-255 2 Washington Zone 8 VA WASLDCRGDS0  367E YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 236   2009-02-10   
571-255 3 Washington Zone 8 VA WASLDCRGDS0  367E YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 236   2009-02-10   
571-255 4 Washington Zone 8 VA WASHDCSWXZZ  829J PAETEC ITEL, LLC 236   2009-02-10   
571-255 5 Washington Zone 8 VA WASLDCRGDS0  367E YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 236   2009-02-10   
571-255 6 Washington Zone 8 VA WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2009-04-27   
571-255 7 Washington Zone 8 VA WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2009-04-27   
571-255 8 Washington Zone 8 VA ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2009-09-01   
571-255 9 Washington Zone 8 VA WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2009-03-06   
571-256 A Washington Zone 8 VA ARTNVAARDS0  9213 VERIZON VIRGINIA, INC. 236      
571-256 0 Washington Zone 8 VA   9213 VERIZON VIRGINIA, INC. 236   2008-12-27   
571-256 1 Washington Zone 8 VA   9213 VERIZON VIRGINIA, INC. 236   2008-12-27   
571-256 2 Washington Zone 8 VA   9213 VERIZON VIRGINIA, INC. 236   2008-12-27   
571-256 3 Washington Zone 8 VA   9213 VERIZON VIRGINIA, INC. 236   2008-12-27   
571-256 4 Washington Zone 8 VA   9213 VERIZON VIRGINIA, INC. 236   2008-12-27   
571-256 5 Washington Zone 8 VA   9213 VERIZON VIRGINIA, INC. 236   2008-12-27   
571-256 6 Washington Zone 8 VA   9213 VERIZON VIRGINIA, INC. 236   2008-12-27   
571-256 7 Washington Zone 8 VA   9213 VERIZON VIRGINIA, INC. 236   2008-12-27   
571-256 8 Washington Zone 8 VA   9213 VERIZON VIRGINIA, INC. 236   2008-12-27   
571-256 9 Washington Zone 8 VA   9213 VERIZON VIRGINIA, INC. 236   2008-12-27   
571-257 A Washington Zone 8 VA ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
571-257 0 Washington Zone 8 VA MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-09-18   
571-257 1 Washington Zone 8 VA MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-09-27   
571-257 2 Washington Zone 8 VA MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-10-08   
571-257 3 Washington Zone 8 VA MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-10-26   
571-257 4 Washington Zone 8 VA MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-11-09   
571-257 5 Washington Zone 8 VA ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2007-10-19   
571-257 6 Washington Zone 8 VA ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2007-08-24   
571-257 7 Washington Zone 8 VA ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2007-10-19   
571-257 8 Washington Zone 8 VA ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2007-10-19   
571-257 9 Washington Zone 8 VA ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2007-10-23   
571-258 A Leesburg VA LSBGVALBDS0  9213 VERIZON VIRGINIA, INC. 246      
571-258 0 Leesburg VA LSBGVALBDS0  9213 VERIZON VIRGINIA, INC. 246      
571-258 1 Leesburg VA LSBGVALBDS0  9213 VERIZON VIRGINIA, INC. 246      
571-258 2 Leesburg VA LSBGVALBDS0  9213 VERIZON VIRGINIA, INC. 246      

<< 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 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 >>

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.