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 |
443-216
| A |
Dundalk |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-216
| 0 |
Dundalk |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2004-03-29 |
|
443-216
| 1 |
Dundalk |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2006-06-26 |
|
443-216
| 2 |
Dundalk |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-02 |
|
443-216
| 3 |
Dundalk |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-02 |
|
443-216
| 4 |
Dundalk |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-02 |
|
443-216
| 5 |
Dundalk |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-02 |
|
443-216
| 6 |
Dundalk |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-02 |
|
443-216
| 7 |
Dundalk |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2005-03-10 |
|
443-216
| 8 |
Dundalk |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2019-07-13 |
|
443-216
| 9 |
Dundalk |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-06-26 |
|
443-217
| A |
Annapolis |
MD |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
|
|
443-218
| A |
Worthington |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-218
| 0 |
Worthington |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-218
| 1 |
Worthington |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-218
| 2 |
Worthington |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2006-03-05 |
|
443-218
| 3 |
Worthington |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-09-04 |
|
443-218
| 4 |
Worthington |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-218
| 5 |
Worthington |
MD |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
2023-08-12 |
|
443-218
| 6 |
Worthington |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-10-28 |
|
443-218
| 7 |
Worthington |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2011-11-20 |
|
443-218
| 8 |
Worthington |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
2006-08-07 |
|
443-218
| 9 |
Worthington |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2020-04-30 |
|
443-219
| A |
Parkville |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-219
| 0 |
Parkville |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-219
| 1 |
Parkville |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-219
| 2 |
Parkville |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2005-01-13 |
|
443-219
| 3 |
Parkville |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2005-02-10 |
|
443-219
| 4 |
Parkville |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2003-02-20 |
|
443-219
| 5 |
Parkville |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2012-03-10 |
|
443-219
| 6 |
Parkville |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2012-10-12 |
|
443-219
| 7 |
Parkville |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2013-04-22 |
|
443-219
| 8 |
Parkville |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2013-04-22 |
|
443-219
| 9 |
Parkville |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-220
| A |
Baltimore |
MD |
BLTMMDCHDS2 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
443-220
| 0 |
Baltimore |
MD |
BLTMMDCHDS2 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
443-220
| 1 |
Baltimore |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2004-01-12 |
|
443-220
| 2 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2005-08-13 |
|
443-220
| 3 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2005-08-13 |
|
443-220
| 4 |
Baltimore |
MD |
BLTMMDCH40Z |
5562 METROPCS, INC. |
238 |
|
2003-08-17 |
|
443-220
| 5 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2003-08-17 |
|
443-220
| 6 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2003-08-17 |
|
443-220
| 7 |
Baltimore |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2004-01-12 |
|
443-220
| 8 |
Baltimore |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2004-01-12 |
|
443-220
| 9 |
Baltimore |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2004-01-12 |
|
443-221
| A |
Annapolis |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-221
| 0 |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2009-05-12 |
|
443-221
| 1 |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2009-05-12 |
|
443-221
| 2 |
Annapolis |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2010-08-01 |
|
443-221
| 3 |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2009-05-12 |
|
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Last updated: Wed, 07 Feb 2024 04:12:25 UTC
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