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 |
443-483
| 7 |
Cardiff |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2019-03-07 |
|
443-483
| 8 |
Cardiff |
MD |
|
145J TERRA NOVA TELECOM INC. |
238 |
|
2021-01-27 |
|
443-483
| 9 |
Cardiff |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-02-13 |
|
443-484
| A |
Edgewood |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-484
| 0 |
Edgewood |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-07-11 |
|
443-484
| 1 |
Edgewood |
MD |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
2017-03-14 |
|
443-484
| 2 |
Edgewood |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2007-12-05 |
|
443-484
| 3 |
Edgewood |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
2014-12-24 |
|
443-484
| 4 |
Edgewood |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-484
| 5 |
Edgewood |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
2014-12-22 |
|
443-484
| 6 |
Edgewood |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
2015-12-27 |
|
443-484
| 7 |
Edgewood |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2014-10-24 |
|
443-484
| 8 |
Edgewood |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2017-05-29 |
|
443-484
| 9 |
Edgewood |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-01-27 |
|
443-485
| A |
Elkton |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-485
| 0 |
Elkton |
MD |
BLTMMDCHXOY |
6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP |
238 |
|
2021-11-04 |
|
443-485
| 1 |
Elkton |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-02-27 |
|
443-485
| 2 |
Elkton |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2021-12-09 |
|
443-485
| 3 |
Elkton |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2021-11-26 |
|
443-485
| 4 |
Elkton |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
2021-10-08 |
|
443-485
| 5 |
Elkton |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2008-05-16 |
|
443-485
| 6 |
Elkton |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2007-10-29 |
|
443-485
| 7 |
Elkton |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2011-02-10 |
|
443-485
| 8 |
Elkton |
MD |
BLTMMDCHXOY |
6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP |
238 |
|
2011-02-26 |
|
443-485
| 9 |
Elkton |
MD |
|
145J TERRA NOVA TELECOM INC. |
238 |
|
2021-07-16 |
|
443-486
| A |
Prince Frederick |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-486
| 0 |
Prince Frederick |
MD |
|
145J TERRA NOVA TELECOM INC. |
238 |
|
2021-07-16 |
|
443-486
| 1 |
Prince Frederick |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-10 |
|
443-486
| 2 |
Prince Frederick |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2006-03-14 |
|
443-486
| 3 |
Prince Frederick |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-10 |
|
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 |
|
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Last updated: Wed, 07 Feb 2024 04:12:25 UTC
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