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
240-523 1 La Plata MD   2589 US LEC OF MARYLAND, INC. 236   2004-02-05   
240-523 2 La Plata MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-07-15   
240-523 3 La Plata MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-10-17   
240-523 4 La Plata MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-03-02   
240-523 5 La Plata MD   4773 XO MARYLAND, LLC 236   2005-08-15   
240-523 6 La Plata MD   4773 XO MARYLAND, LLC 236   2005-08-15   
240-523 7 La Plata MD   4773 XO MARYLAND, LLC 236   2005-08-15   
240-523 8 La Plata MD   4773 XO MARYLAND, LLC 236   2005-08-15   
240-523 9 La Plata MD   4773 XO MARYLAND, LLC 236      
240-524 A Laurel MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-524 0 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2019-08-01   
240-524 1 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2019-08-01   
240-524 2 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2020-04-14   
240-524 3 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2020-04-14   
240-524 4 Laurel MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-524 5 Laurel MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-524 6 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2020-04-14   
240-524 7 Laurel MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-524 8 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2020-04-14   
240-524 9 Laurel MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-525 A Washington Zone 15 MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-525 5 Washington Zone 15 MD   145J TERRA NOVA TELECOM INC. 236   2021-01-23   
240-525 9 Washington Zone 15 MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-526 A Leonardtown MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-526 0 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2020-03-11   
240-526 1 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2020-03-11   
240-526 2 Leonardtown MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2019-06-26   
240-526 3 Leonardtown MD   876D ONVOY, LLC - MD 236   2021-03-04   
240-526 4 Leonardtown MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2019-06-26   
240-526 5 Leonardtown MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2019-06-26   
240-526 6 Leonardtown MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2019-06-26   
240-526 7 Leonardtown MD   876D ONVOY, LLC - MD 236   2021-03-04   
240-526 8 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2020-03-11   
240-526 9 Leonardtown MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-527 A Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
240-527 0 Hagerstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2005-09-15   
240-527 1 Hagerstown MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-05-14   
240-527 2 Hagerstown MD   9212 VERIZON MARYLAND, INC. 240      
240-527 3 Hagerstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2005-08-19   
240-527 4 Hagerstown MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-04-14   
240-527 5 Hagerstown MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-04-14   
240-527 6 Hagerstown MD   9212 VERIZON MARYLAND, INC. 240      
240-527 7 Hagerstown MD   4098 SPRINT SPECTRUM L.P. - MD 240   2004-07-18   
240-527 8 Hagerstown MD   4098 SPRINT SPECTRUM L.P. - MD 240   2004-05-17   
240-527 9 Hagerstown MD   4098 SPRINT SPECTRUM L.P. - MD 240   2004-01-28   
240-528 A Hughesville MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-528 0 Hughesville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-02-17   
240-528 1 Hughesville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2009-03-18   
240-528 2 Hughesville MD   318J COMCAST IP PHONE LLC 236   2015-04-24   
240-528 3 Hughesville MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2007-10-22   

<< 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: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.