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 |
443-936
| 6 |
Elkridge |
MD |
BLTMMDDN2MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
238 |
|
2018-10-18 |
|
443-936
| 7 |
Elkridge |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2018-04-02 |
|
443-936
| 8 |
Elkridge |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2017-10-20 |
|
443-936
| 9 |
Elkridge |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2017-04-24 |
|
443-937
| A |
Union Bridge |
MD |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-937
| 0 |
Union Bridge |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2004-04-02 |
|
443-937
| 1 |
Union Bridge |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
2004-02-05 |
|
443-937
| 2 |
Union Bridge |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2012-10-08 |
|
443-937
| 3 |
Union Bridge |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-01-09 |
|
443-937
| 4 |
Union Bridge |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-06-16 |
|
443-937
| 5 |
Union Bridge |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-04-04 |
|
443-937
| 6 |
Union Bridge |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2007-01-19 |
|
443-937
| 7 |
Union Bridge |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-937
| 8 |
Union Bridge |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-937
| 9 |
Union Bridge |
MD |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-938
| A |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
|
|
443-938
| 0 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2007-10-06 |
|
443-938
| 1 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2007-10-06 |
|
443-938
| 2 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2007-10-06 |
|
443-938
| 3 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2007-10-06 |
|
443-938
| 4 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2007-11-11 |
|
443-938
| 5 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2007-11-11 |
|
443-938
| 6 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2007-11-11 |
|
443-938
| 7 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2007-11-11 |
|
443-938
| 8 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2007-11-11 |
|
443-938
| 9 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2007-11-07 |
|
443-939
| A |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-939
| 0 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-939
| 1 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-939
| 2 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2004-08-09 |
|
443-939
| 3 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2004-01-11 |
|
443-939
| 4 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2004-05-06 |
|
443-939
| 5 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2004-05-06 |
|
443-939
| 6 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2004-05-06 |
|
443-939
| 7 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2004-05-27 |
|
443-939
| 8 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2004-05-27 |
|
443-939
| 9 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-940
| A |
Pikesville |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-940
| 0 |
Pikesville |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-940
| 1 |
Pikesville |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-940
| 2 |
Pikesville |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-940
| 3 |
Pikesville |
MD |
BLTMMDCHXMX |
506J TWILIO INTERNATIONAL, INC. |
238 |
|
2020-12-26 |
|
443-940
| 4 |
Pikesville |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-940
| 5 |
Pikesville |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-09-23 |
|
443-940
| 6 |
Pikesville |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-09-23 |
|
443-940
| 7 |
Pikesville |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2022-10-03 |
|
443-940
| 8 |
Pikesville |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2020-09-12 |
|
443-940
| 9 |
Pikesville |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-941
| A |
Elkton |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
|
|
443-941
| 0 |
Elkton |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2012-10-07 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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