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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-982 1 Baltimore MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2007-07-14   
443-982 2 Baltimore MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2007-07-14   
443-982 3 Baltimore MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2007-07-14   
443-982 4 Baltimore MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2007-07-14   
443-982 5 Baltimore MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2007-07-14   
443-982 6 Baltimore MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2007-07-14   
443-982 7 Baltimore MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2007-07-14   
443-982 8 Baltimore MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2007-07-14   
443-982 9 Baltimore MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2007-07-14   
443-983 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-983 0 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-983 1 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-983 2 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-983 3 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-983 4 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-983 5 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-983 6 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-983 7 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-983 8 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-983 9 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-984 A Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
443-985 A Randallstown MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-985 0 Randallstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-985 1 Randallstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-985 2 Randallstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-08   
443-985 3 Randallstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2013-12-27   
443-985 4 Randallstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-09-21   
443-985 5 Randallstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-03-16   
443-985 6 Randallstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-985 7 Randallstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-10-12   
443-985 8 Randallstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2013-05-20   
443-985 9 Randallstown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-986 A Baltimore MD CTVLMDBACM3  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-09-09   
443-986 0 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-09-09   
443-986 1 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-11-02   
443-986 2 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-11-02   
443-986 3 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-11-02   
443-986 4 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-11-02   
443-986 5 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2007-10-22   
443-986 6 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2007-10-22   
443-986 7 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2007-10-22   
443-986 8 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-12-04   
443-986 9 Baltimore MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-10-25   
443-987 A Bel Air MD BLTMMDCHDS7  7421 AT&T LOCAL 238      
443-987 0 Bel Air MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-05-02   
443-987 1 Bel Air MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-08-01   
443-987 2 Bel Air MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-05-01   
443-987 3 Bel Air MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-12-19   
443-987 4 Bel Air MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-10-03   
443-987 5 Bel Air MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-10-03   

<< 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 >>

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.