Local Calling Guide
Area code/prefix search
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 |
443-954
| 7 |
Baltimore |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
2005-08-27 |
|
443-954
| 8 |
Baltimore |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
2005-08-27 |
|
443-954
| 9 |
Baltimore |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
2005-08-27 |
|
443-955
| A |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
|
|
443-955
| 0 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2006-05-06 |
|
443-955
| 1 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2006-05-08 |
|
443-955
| 2 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2006-06-02 |
|
443-955
| 3 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2006-06-02 |
|
443-955
| 4 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2006-06-02 |
|
443-955
| 5 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2006-06-26 |
|
443-955
| 6 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2006-06-26 |
|
443-955
| 7 |
Baltimore |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
2007-11-10 |
|
443-955
| 8 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2006-07-03 |
|
443-955
| 9 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2006-07-03 |
|
443-956
| A |
Baltimore |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
|
|
443-957
| A |
Baltimore |
MD |
BLTMMDCHXAX |
7421 AT&T - LOCAL |
238 |
|
|
|
443-957
| 1 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2005-03-12 |
|
443-957
| 2 |
Baltimore |
MD |
BLTMMDCHXAX |
7421 AT&T - LOCAL |
238 |
|
|
|
443-957
| 4 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2004-05-29 |
|
443-957
| 5 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2005-09-22 |
|
443-957
| 6 |
Baltimore |
MD |
BLTMMDCHXAX |
7421 AT&T - LOCAL |
238 |
|
|
|
443-957
| 9 |
Baltimore |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
2005-08-03 |
|
443-960
| A |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
|
|
443-960
| 0 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2011-12-08 |
|
443-960
| 1 |
Glen Burnie |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2016-02-06 |
|
443-960
| 2 |
Glen Burnie |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2016-02-06 |
|
443-960
| 3 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2016-04-11 |
|
443-960
| 4 |
Glen Burnie |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2016-04-18 |
|
443-960
| 5 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2016-02-05 |
|
443-960
| 6 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2012-06-03 |
|
443-960
| 7 |
Glen Burnie |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2014-12-31 |
|
443-960
| 8 |
Glen Burnie |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2014-12-31 |
|
443-960
| 9 |
Glen Burnie |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2016-04-12 |
|
443-961
| A |
Baltimore |
MD |
BLTMMDCHPMD |
820C INTRADO COMMUNICATIONS, LLC |
238 |
|
|
|
443-961
| 0 |
Baltimore |
MD |
BLTMMDCHPMD |
820C INTRADO COMMUNICATIONS, LLC |
238 |
|
2015-02-13 |
|
443-961
| 1 |
Baltimore |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-05-14 |
|
443-961
| 2 |
Baltimore |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-05-14 |
|
443-961
| 3 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2015-03-20 |
|
443-961
| 4 |
Baltimore |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-05-14 |
|
443-961
| 5 |
Baltimore |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-05-14 |
|
443-961
| 6 |
Baltimore |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-05-14 |
|
443-961
| 7 |
Baltimore |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-05-14 |
|
443-961
| 8 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2015-07-02 |
|
443-961
| 9 |
Baltimore |
MD |
BLTMMDCHPMD |
820C INTRADO COMMUNICATIONS, LLC |
238 |
|
2015-02-13 |
|
443-962
| A |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
|
|
443-962
| 0 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2007-11-05 |
|
443-962
| 1 |
Glen Burnie |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2007-11-20 |
|
443-962
| 2 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2007-12-14 |
|
443-962
| 3 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2008-01-14 |
|
443-962
| 4 |
Glen Burnie |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2008-02-04 |
|
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Last updated: Wed, 07 Feb 2024 04:12:25 UTC
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