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 |
443-502
| 0 |
Havre de Grace |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2008-12-11 |
|
443-502
| 1 |
Havre de Grace |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
2004-02-05 |
|
443-502
| 2 |
Havre de Grace |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2005-03-10 |
|
443-502
| 3 |
Havre de Grace |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-06-16 |
|
443-502
| 5 |
Havre de Grace |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2007-06-29 |
|
443-502
| 6 |
Havre de Grace |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-10-28 |
|
443-502
| 7 |
Havre de Grace |
MD |
BLTMMDDN2MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
238 |
|
2014-06-25 |
|
443-502
| 8 |
Havre de Grace |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2002-02-25 |
|
443-502
| 9 |
Havre de Grace |
MD |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-503
| A |
Dundalk |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-503
| 0 |
Dundalk |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-503
| 1 |
Dundalk |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-503
| 2 |
Dundalk |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-503
| 3 |
Dundalk |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2005-02-11 |
|
443-503
| 4 |
Dundalk |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2003-02-20 |
|
443-503
| 5 |
Dundalk |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2006-09-18 |
|
443-503
| 6 |
Dundalk |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2006-09-18 |
|
443-503
| 7 |
Dundalk |
MD |
PIVLMDPKFMD |
9170 BROADVIEW NETWORKS, INC. - MD |
238 |
|
2009-04-20 |
|
443-503
| 8 |
Dundalk |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2013-02-04 |
|
443-503
| 9 |
Dundalk |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2020-03-17 |
|
443-504
| A |
Fallston |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-504
| 0 |
Fallston |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-504
| 1 |
Fallston |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2004-03-29 |
|
443-504
| 2 |
Fallston |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2004-05-02 |
|
443-504
| 3 |
Fallston |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2004-07-02 |
|
443-504
| 4 |
Fallston |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2004-01-19 |
|
443-504
| 5 |
Fallston |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2004-02-28 |
|
443-504
| 6 |
Fallston |
MD |
BLTMMDCH25Z |
8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) |
238 |
|
2015-06-14 |
|
443-504
| 7 |
Fallston |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2005-04-01 |
|
443-504
| 8 |
Fallston |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2004-08-02 |
|
443-504
| 9 |
Fallston |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2004-09-29 |
|
443-505
| A |
Essex |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-505
| 0 |
Essex |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-505
| 1 |
Essex |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-505
| 2 |
Essex |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2011-12-24 |
|
443-505
| 3 |
Essex |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2014-03-20 |
|
443-505
| 4 |
Essex |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-505
| 5 |
Essex |
MD |
BLTMMDCHXMX |
506J TWILIO INTERNATIONAL, INC. |
238 |
|
2020-12-26 |
|
443-505
| 6 |
Essex |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2018-10-18 |
|
443-505
| 7 |
Essex |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2008-05-16 |
|
443-505
| 8 |
Essex |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2014-09-21 |
|
443-505
| 9 |
Essex |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2019-10-07 |
|
443-506
| A |
Baltimore |
MD |
BLTMMDCH40Z |
6664 SPRINT SPECTRUM, L.P. |
238 |
|
|
|
443-506
| 0 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-506
| 1 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-506
| 2 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-506
| 3 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-506
| 4 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-506
| 5 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-506
| 6 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
<< 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: LES.NET
Like this site? We accept donations via PayPal.