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
240-536 5 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-06-27   
240-543 A Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-543 0 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-10-30   
240-543 1 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-12-04   
240-543 2 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-10-09   
240-543 3 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-10-11   
240-543 4 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-10-11   
240-543 5 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-10-11   
240-543 6 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-11-30   
240-543 7 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-11-30   
240-543 8 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-09-15   
240-543 9 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-09-15   
240-544 8 Washington Zone 14 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-02-09   
240-547 7 Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-08-18   
240-547 8 Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-11-15   
240-548 0 Washington Zone 14 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2023-09-30   
240-548 7 Washington Zone 14 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-12-13   
240-548 8 Washington Zone 14 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-04-30   
240-553 4 Washington Zone 13 MD 5562 METROPCS, INC. 236   2018-06-18   
240-556 3 Washington Zone 14 MD 5562 METROPCS, INC. 236   2015-07-03   
240-556 4 Washington Zone 14 MD 5562 METROPCS, INC. 236   2015-09-20   
240-556 8 Washington Zone 14 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-08-14   
240-557 A Washington Zone 6 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-557 9 Washington Zone 6 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2017-05-11   
240-559 4 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-10-09   
240-559 6 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-10-09   
240-559 7 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2012-07-20   
240-559 8 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2012-07-20   
240-564 A Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-564 7 Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-10-07   
240-564 8 Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-11-04   
240-564 9 Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-02-23   
240-573 6 Washington Zone 15 MD 5562 METROPCS, INC. 236   2014-12-29   
240-573 8 Washington Zone 15 MD 5562 METROPCS, INC. 236   2014-12-29   
240-579 A Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-579 0 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-09-20   
240-579 1 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-09-20   
240-579 2 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-10-22   
240-579 3 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-01-12   
240-579 4 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-04-20   
240-579 5 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-04-20   
240-579 6 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-04-16   
240-579 7 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-04-16   
240-579 8 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-03-12   
240-579 9 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-03-12   
240-581 0 Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-12-03   
240-581 2 Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-02-04   
240-584 A Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-584 1 Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-12-07   
240-584 2 Laurel MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-09-20   

<< 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: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.