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 >>
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
443-590
| A |
Reisterstown |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD |
238 |
|
|
|
443-590
| 0 |
Reisterstown |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD |
238 |
|
|
|
443-590
| 1 |
Reisterstown |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD |
238 |
|
|
|
443-590
| 3 |
Reisterstown |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2006-01-02 |
|
443-590
| 4 |
Reisterstown |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD |
238 |
|
|
|
443-590
| 5 |
Reisterstown |
MD |
BLTOMDKHDS0 |
7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD |
238 |
|
2008-10-01 |
|
443-590
| 6 |
Reisterstown |
MD |
BLTMMDCHFMD |
5562 METRO PCS, INC. |
238 |
|
2016-12-14 |
|
443-590
| 7 |
Reisterstown |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-21 |
|
443-590
| 8 |
Reisterstown |
MD |
BLTQMD012MD |
964H BARR TELL USA, INC. |
238 |
|
2016-12-17 |
|
443-590
| 9 |
Reisterstown |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-21 |
|
443-591
| A |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
|
|
443-591
| 0 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2009-07-06 |
|
443-591
| 1 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2009-09-03 |
|
443-591
| 2 |
Glen Burnie |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2010-01-13 |
|
443-591
| 3 |
Glen Burnie |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2010-01-13 |
|
443-591
| 4 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2010-02-16 |
|
443-591
| 5 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2010-03-16 |
|
443-591
| 6 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2010-06-03 |
|
443-591
| 7 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2010-06-14 |
|
443-591
| 8 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2010-06-14 |
|
443-591
| 9 |
Glen Burnie |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2010-06-14 |
|
443-592
| A |
Elkridge |
MD |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-592
| 3 |
Elkridge |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2017-04-18 |
|
443-592
| 5 |
Elkridge |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-06-16 |
|
443-592
| 6 |
Elkridge |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-06-16 |
|
443-592
| 7 |
Elkridge |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-06-16 |
|
443-592
| 8 |
Elkridge |
MD |
|
082H LOCAL ACCESS LLC - MD |
238 |
|
2019-04-26 |
|
443-592
| 9 |
Elkridge |
MD |
|
145J TERRA NOVA TELECOM INC. |
238 |
|
2021-01-27 |
|
443-593
| A |
Elkton |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
|
|
443-593
| 0 |
Elkton |
MD |
BLTQMD010MD |
082H LOCAL ACCESS LLC - MD |
238 |
|
2016-01-04 |
|
443-593
| 1 |
Elkton |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
|
|
443-593
| 2 |
Elkton |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2016-03-01 |
|
443-593
| 3 |
Elkton |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2014-09-21 |
|
443-593
| 4 |
Elkton |
MD |
BLTMMDCH06T |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-05-23 |
|
443-593
| 5 |
Elkton |
MD |
BLTMMDCH06T |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-05-23 |
|
443-593
| 6 |
Elkton |
MD |
BLTQMD010MD |
082H LOCAL ACCESS LLC - MD |
238 |
|
2015-03-23 |
|
443-593
| 7 |
Elkton |
MD |
|
508J CENTURYLINK COMMUNICATIONS LLC |
238 |
|
2014-06-12 |
|
443-593
| 8 |
Elkton |
MD |
BLTMMDCHXOY |
6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, L.P. |
238 |
|
2014-02-09 |
|
443-593
| 9 |
Elkton |
MD |
BLTMMDCHXOY |
6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, L.P. |
238 |
|
2014-02-09 |
|
443-594
| A |
Sparrows Point |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD |
238 |
|
|
|
443-594
| 0 |
Sparrows Point |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD |
238 |
|
|
|
443-594
| 1 |
Sparrows Point |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD |
238 |
|
|
|
443-594
| 2 |
Sparrows Point |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-02-10 |
|
443-594
| 3 |
Sparrows Point |
MD |
BLTOMDKHDS0 |
7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD |
238 |
|
2008-10-01 |
|
443-594
| 4 |
Sparrows Point |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD |
238 |
|
|
|
443-594
| 5 |
Sparrows Point |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-594
| 6 |
Sparrows Point |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2012-10-08 |
|
443-594
| 7 |
Sparrows Point |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-24 |
|
443-594
| 8 |
Sparrows Point |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-24 |
|
443-594
| 9 |
Sparrows Point |
MD |
BLTMMDCHLMD |
082H LOCAL ACCESS LLC - MD |
238 |
|
2016-10-14 |
|
<< 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 >>
Last updated: Sun, 28 Feb 2021 19:06:05 UTC
Sponsored by: Callcentric - VoIP Internet phone service
Like this site? We accept donations via PayPal.