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
240-528 4 Hughesville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-03-02   
240-528 5 Hughesville MD   4716 PAETEC COMMUNICATIONS, INC. - MD 236   2010-11-29   
240-528 6 Hughesville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-528 7 Hughesville MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-03-11   
240-528 8 Hughesville MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-04-04   
240-528 9 Hughesville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-529 A Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
240-529 0 Frederick MD   9212 VERIZON MARYLAND, INC. 240      
240-529 1 Frederick MD   9212 VERIZON MARYLAND, INC. 240      
240-529 2 Frederick MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-01-09   
240-529 3 Frederick MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-06-13   
240-529 4 Frederick MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-06-13   
240-529 5 Frederick MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-11-07   
240-529 6 Frederick MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-01-06   
240-529 7 Frederick MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-02-04   
240-529 8 Frederick MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-02-05   
240-529 9 Frederick MD   6664 SPRINT SPECTRUM L.P. 240   2006-07-02   
240-530 A Waldorf MD SLSPMD912MD  082H LOCAL ACCESS LLC - MD 236      
240-530 0 Waldorf MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2016-11-17   
240-530 1 Waldorf MD   082H LOCAL ACCESS LLC - MD 236   2013-09-22   
240-530 2 Waldorf MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-23   
240-530 3 Waldorf MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-23   
240-530 4 Waldorf MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-23   
240-530 5 Waldorf MD   964H BARR TELL USA, INC. 236   2016-11-30   
240-530 6 Waldorf MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-23   
240-530 7 Waldorf MD   508J CENTURYLINK COMMUNICATIONS LLC 236   2014-04-02   
240-530 8 Waldorf MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-10-26   
240-530 9 Waldorf MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-23   
240-531 A Washington Zone 3 MD WASHDC127MD  073H TELNYX LLC 236      
240-531 0 Washington Zone 3 MD   073H TELNYX LLC 236   2017-04-21   
240-531 1 Washington Zone 3 MD   876D ONVOY, LLC - MD 236   2017-05-18   
240-531 2 Washington Zone 3 MD   318J COMCAST IP PHONE LLC 236   2017-04-23   
240-531 3 Washington Zone 3 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2018-10-19   
240-531 4 Washington Zone 3 MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2018-07-06   
240-531 5 Washington Zone 3 MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2018-07-06   
240-531 6 Washington Zone 3 MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2018-07-06   
240-531 7 Washington Zone 3 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2019-03-18   
240-531 8 Washington Zone 3 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2019-03-18   
240-531 9 Washington Zone 3 MD   082H LOCAL ACCESS LLC - MD 236   2019-04-26   
240-532 A Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-532 0 Washington Zone 5 MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2013-12-27   
240-532 1 Washington Zone 5 MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2015-05-01   
240-532 2 Washington Zone 5 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2014-05-30   
240-532 3 Washington Zone 5 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2014-05-30   
240-532 4 Washington Zone 5 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2014-05-30   
240-532 5 Washington Zone 5 MD   318J COMCAST IP PHONE LLC 236   2013-12-30   
240-532 6 Washington Zone 5 MD   318J COMCAST IP PHONE LLC 236   2013-12-30   
240-532 7 Washington Zone 5 MD   318J COMCAST IP PHONE LLC 236   2013-12-30   
240-532 8 Washington Zone 5 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2014-05-30   
240-532 9 Washington Zone 5 MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2014-08-01   

<< 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: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.