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.

Switch: BTVLMD12CMA

<< 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 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-614 6 Washington Zone 10 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-12-27   
240-614 8 Washington Zone 10 MD 5562 METROPCS, INC. 236   2014-10-15   
240-614 9 Washington Zone 10 MD 5562 METROPCS, INC. 236   2013-09-14   
240-615 A Washington Zone 4 MD 5562 METROPCS, INC. 236      
240-615 0 Washington Zone 4 MD 5562 METROPCS, INC. 236   2013-07-20   
240-615 1 Washington Zone 4 MD 5562 METROPCS, INC. 236   2013-07-20   
240-615 2 Washington Zone 4 MD 5562 METROPCS, INC. 236   2013-07-20   
240-615 3 Washington Zone 4 MD 5562 METROPCS, INC. 236   2013-07-20   
240-615 4 Washington Zone 4 MD 5562 METROPCS, INC. 236   2013-07-20   
240-615 5 Washington Zone 4 MD 5562 METROPCS, INC. 236   2013-07-20   
240-615 6 Washington Zone 4 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-10-11   
240-615 7 Washington Zone 4 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-10-11   
240-615 9 Washington Zone 4 MD 5562 METROPCS, INC. 236   2013-07-20   
240-616 5 Washington Zone 13 MD 5562 METROPCS, INC. 236   2015-01-03   
240-616 8 Washington Zone 13 MD 5562 METROPCS, INC. 236   2015-01-03   
240-618 4 Washington Zone 10 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-02-14   
240-618 6 Washington Zone 10 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-02-14   
240-618 7 Washington Zone 10 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-11-24   
240-618 8 Washington Zone 10 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-11-24   
240-618 9 Washington Zone 10 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2017-01-17   
240-619 0 Washington Zone 5 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-09-13   
240-630 9 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-03-23   
240-633 0 Hughesville MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-02-06   
240-633 9 Hughesville MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-09-15   
240-636 A Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-636 7 Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-12-09   
240-636 8 Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2017-09-29   
240-639 2 Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-11-04   
240-642 1 Washington Zone 10 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-10-31   
240-642 9 Washington Zone 10 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-10-31   
240-643 A Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-643 0 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-643 1 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-03-24   
240-643 2 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-03-24   
240-643 3 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-04-07   
240-643 4 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-04-07   
240-643 5 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-04-07   
240-643 6 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-643 7 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-05-09   
240-643 8 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-05-09   
240-643 9 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-644 2 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-06-04   
240-644 3 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-07-16   
240-644 4 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-07-14   
240-644 5 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-07-14   
240-644 7 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-07-14   
240-644 8 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-04-12   
240-644 9 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-04-23   
240-645 2 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-08-23   
240-645 3 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-08-23   

<< 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 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.