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: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-831 3 Frederick MD   551G BRIGHTLINK COMMUNICATIONS, LLC 240   2018-11-07   
240-831 4 Frederick MD   318J COMCAST IP PHONE LLC 240   2018-06-16   
240-831 5 Frederick MD   876D ONVOY, LLC - MD 240   2016-05-26   
240-831 6 Frederick MD   876D ONVOY, LLC - MD 240   2016-05-26   
240-831 7 Frederick MD   876D ONVOY, LLC - MD 240   2016-05-26   
240-831 8 Frederick MD   876D ONVOY, LLC - MD 240   2016-05-26   
240-831 9 Frederick MD   551G BRIGHTLINK COMMUNICATIONS, LLC 240   2018-07-23   
240-832 A Washington Zone 2 MD WASHDCSWXCZ  6664 SPRINT SPECTRUM L.P. 236      
240-832 0 Washington Zone 2 MD   6664 SPRINT SPECTRUM L.P. 236      
240-832 1 Washington Zone 2 MD   6664 SPRINT SPECTRUM L.P. 236      
240-832 2 Washington Zone 2 MD   6664 SPRINT SPECTRUM L.P. 236      
240-832 3 Washington Zone 2 MD   6664 SPRINT SPECTRUM L.P. 236      
240-832 4 Washington Zone 2 MD   6664 SPRINT SPECTRUM L.P. 236      
240-832 5 Washington Zone 2 MD   6664 SPRINT SPECTRUM L.P. 236      
240-832 6 Washington Zone 2 MD   6664 SPRINT SPECTRUM L.P. 236      
240-832 7 Washington Zone 2 MD   6664 SPRINT SPECTRUM L.P. 236   2002-07-12   
240-832 8 Washington Zone 2 MD   6664 SPRINT SPECTRUM L.P. 236   2002-10-07   
240-832 9 Washington Zone 2 MD   6664 SPRINT SPECTRUM L.P. 236   2002-10-07   
240-833 A Washington Zone 11 MD WASHDCCZDS0  4773 XO MARYLAND, LLC 236      
240-833 0 Washington Zone 11 MD   4773 XO MARYLAND, LLC 236      
240-833 1 Washington Zone 11 MD   4773 XO MARYLAND, LLC 236      
240-833 2 Washington Zone 11 MD   318J COMCAST IP PHONE LLC 236   2014-04-21   
240-833 3 Washington Zone 11 MD   318J COMCAST IP PHONE LLC 236   2014-04-04   
240-833 4 Washington Zone 11 MD   4773 XO MARYLAND, LLC 236      
240-833 5 Washington Zone 11 MD   876D ONVOY, LLC - MD 236   2016-02-25   
240-833 6 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-24   
240-833 7 Washington Zone 11 MD   876D ONVOY, LLC - MD 236   2016-02-25   
240-833 8 Washington Zone 11 MD   318J COMCAST IP PHONE LLC 236   2002-03-11   
240-833 9 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-24   
240-834 A Kitzmiller MD   566J RADIANTIQ LLC 240   2021-05-14   
240-834 2 Kitzmiller MD   566J RADIANTIQ LLC 240   2021-05-14   
240-834 8 Kitzmiller MD   876D ONVOY, LLC - MD 240   2021-05-15   
240-834 9 Kitzmiller MD   876D ONVOY, LLC - MD 240   2021-05-15   
240-837 A Hughesville MD WASHDCCZDS0  4773 XO MARYLAND, LLC 236      
240-837 0 Hughesville MD   4773 XO MARYLAND, LLC 236      
240-837 1 Hughesville MD   4773 XO MARYLAND, LLC 236   2011-05-21   
240-837 2 Hughesville MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-08-16   
240-837 3 Hughesville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-02-09   
240-837 4 Hughesville MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2014-07-15   
240-837 5 Hughesville MD   508J CENTURYLINK COMMUNICATIONS LLC 236   2014-06-12   
240-837 6 Hughesville MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
240-837 7 Hughesville MD   4773 XO MARYLAND, LLC 236      
240-837 8 Hughesville MD   876D ONVOY, LLC - MD 236   2012-10-06   
240-837 9 Hughesville MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
240-838 A Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-838 0 Washington Zone 5 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-838 1 Washington Zone 5 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-838 2 Washington Zone 5 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-03-26   
240-838 3 Washington Zone 5 MD   318J COMCAST IP PHONE LLC 236   2006-12-29   
240-838 4 Washington Zone 5 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      

<< 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 >>

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.