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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 >>
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
443-486
| 4 |
Prince Frederick |
MD |
PRFRMDPFRS1 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2004-07-15 |
|
443-486
| 5 |
Prince Frederick |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2013-09-06 |
|
443-486
| 6 |
Prince Frederick |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-09-23 |
|
443-486
| 7 |
Prince Frederick |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2008-02-13 |
|
443-486
| 8 |
Prince Frederick |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2008-03-31 |
|
443-486
| 9 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2021-12-15 |
|
443-487
| A |
Westminster |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-487
| 0 |
Westminster |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2022-10-16 |
|
443-487
| 1 |
Westminster |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2008-03-03 |
|
443-487
| 2 |
Westminster |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2008-04-04 |
|
443-487
| 3 |
Westminster |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2009-02-02 |
|
443-487
| 4 |
Westminster |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2006-05-05 |
|
443-487
| 5 |
Westminster |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
2002-11-16 |
|
443-487
| 6 |
Westminster |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-09-03 |
|
443-487
| 7 |
Westminster |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2007-09-21 |
|
443-487
| 8 |
Westminster |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
2002-11-25 |
|
443-487
| 9 |
Westminster |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2021-10-08 |
|
443-488
| A |
Baltimore |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
|
|
443-488
| 0 |
Baltimore |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2010-08-14 |
|
443-488
| 1 |
Baltimore |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2010-08-14 |
|
443-488
| 2 |
Baltimore |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2010-08-14 |
|
443-488
| 3 |
Baltimore |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2010-08-14 |
|
443-488
| 4 |
Baltimore |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2010-08-14 |
|
443-488
| 5 |
Baltimore |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
2010-10-20 |
|
443-488
| 6 |
Baltimore |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
2010-10-20 |
|
443-488
| 7 |
Baltimore |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
2010-10-20 |
|
443-488
| 8 |
Baltimore |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
2010-10-20 |
|
443-488
| 9 |
Baltimore |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
2010-10-20 |
|
443-489
| A |
Chase |
MD |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-489
| 0 |
Chase |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
2001-11-19 |
|
443-489
| 1 |
Chase |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-489
| 2 |
Chase |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-24 |
|
443-489
| 3 |
Chase |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
2007-01-24 |
|
443-489
| 4 |
Chase |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-24 |
|
443-489
| 5 |
Chase |
MD |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2008-10-01 |
|
443-489
| 6 |
Chase |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-02-13 |
|
443-489
| 7 |
Chase |
MD |
BLTMMDDN2MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
238 |
|
2014-06-25 |
|
443-489
| 8 |
Chase |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-489
| 9 |
Chase |
MD |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-490
| A |
Edgewood |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-490
| 0 |
Edgewood |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-490
| 1 |
Edgewood |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-490
| 2 |
Edgewood |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
2016-07-28 |
|
443-490
| 3 |
Edgewood |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
2016-08-04 |
|
443-490
| 4 |
Edgewood |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-490
| 5 |
Edgewood |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2020-11-30 |
|
443-490
| 6 |
Edgewood |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2017-10-19 |
|
443-490
| 7 |
Edgewood |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2017-10-19 |
|
443-490
| 8 |
Edgewood |
MD |
BLTQMD012MD |
964H BARR TELL USA, INC. |
238 |
|
2016-12-17 |
|
443-490
| 9 |
Edgewood |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
2017-10-14 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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