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: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-782 6 Annapolis MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-28   
443-782 7 Annapolis MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2018-06-15   
443-782 8 Annapolis MD BLTMMDCH3MD  228C IDT AMERICA, CORP. - MD 238   2018-01-14   
443-782 9 Annapolis MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-30   
443-783 A Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-784 A Armiger-Gibson Island MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-784 0 Armiger-Gibson Island MD   515J IP HORIZON LLC 238   2013-09-06   
443-784 1 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2015-01-12   
443-784 2 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-04-23   
443-784 3 Armiger-Gibson Island MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-10-01   
443-784 4 Armiger-Gibson Island MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2004-11-15   
443-784 5 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-04-23   
443-784 6 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-04-23   
443-784 7 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2013-05-23   
443-784 8 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2013-07-24   
443-784 9 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2015-01-12   
443-785 A Arbutus MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-786 A Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-786 0 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-786 1 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-786 2 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-786 3 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-786 4 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-786 5 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-786 6 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-786 7 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-786 8 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2004-08-02   
443-786 9 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2005-01-02   
443-787 A Bel Air MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-787 0 Bel Air MD   145J TERRA NOVA TELECOM INC. 238   2021-01-27   
443-787 1 Bel Air MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-787 2 Bel Air MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-02-06   
443-787 3 Bel Air MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-09-05   
443-787 4 Bel Air MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2014-09-14   
443-787 5 Bel Air MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-11-24   
443-787 6 Bel Air MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-12-13   
443-787 7 Bel Air MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-04-02   
443-787 8 Bel Air MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-10-10   
443-787 9 Bel Air MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-12-13   
443-788 A Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
443-788 0 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-04-06   
443-788 1 Aberdeen MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 236   2018-10-20   
443-788 2 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-09-08   
443-788 3 Aberdeen MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2019-03-07   
443-788 4 Aberdeen MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 236   2019-03-30   
443-788 5 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-06-24   
443-788 6 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-09-08   
443-788 7 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-05-08   
443-788 8 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-05-08   
443-788 9 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-03-12   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 >>

Last updated: Wed, 07 Feb 2024 04:12:25 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.