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 |
443-779
| 3 |
Aberdeen |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
236 |
|
2010-10-20 |
|
443-779
| 4 |
Aberdeen |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
236 |
|
2010-10-20 |
|
443-779
| 5 |
Aberdeen |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
236 |
|
2010-10-20 |
|
443-779
| 6 |
Aberdeen |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
236 |
|
2010-10-20 |
|
443-779
| 7 |
Aberdeen |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
236 |
|
2010-10-20 |
|
443-779
| 8 |
Aberdeen |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
236 |
|
2010-10-20 |
|
443-779
| 9 |
Aberdeen |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2013-12-27 |
|
443-780
| A |
Woodlawn |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-780
| 0 |
Woodlawn |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-780
| 1 |
Woodlawn |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-780
| 2 |
Woodlawn |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-780
| 3 |
Woodlawn |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-780
| 4 |
Woodlawn |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2017-11-24 |
|
443-780
| 5 |
Woodlawn |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2017-11-24 |
|
443-780
| 6 |
Woodlawn |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2019-06-21 |
|
443-780
| 7 |
Woodlawn |
MD |
BLTQMD012MD |
964H BARR TELL USA, INC. |
238 |
|
2016-12-17 |
|
443-780
| 9 |
Woodlawn |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-781
| A |
Armiger-Gibson Island |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2024-03-05 |
|
443-781
| 0 |
Armiger-Gibson Island |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-04-30 |
|
443-781
| 1 |
Armiger-Gibson Island |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-02-11 |
|
443-781
| 2 |
Armiger-Gibson Island |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-02-11 |
|
443-781
| 3 |
Armiger-Gibson Island |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2018-02-08 |
|
443-781
| 4 |
Armiger-Gibson Island |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2019-04-20 |
|
443-781
| 5 |
Armiger-Gibson Island |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-03-04 |
|
443-781
| 6 |
Armiger-Gibson Island |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-03-04 |
|
443-781
| 7 |
Armiger-Gibson Island |
MD |
BLTMMDCHXMX |
506J TWILIO INTERNATIONAL, INC. |
238 |
|
2020-12-26 |
|
443-781
| 8 |
Armiger-Gibson Island |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2019-02-19 |
|
443-781
| 9 |
Armiger-Gibson Island |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2019-02-19 |
|
443-782
| A |
Annapolis |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-782
| 0 |
Annapolis |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-782
| 2 |
Annapolis |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-10-30 |
|
443-782
| 3 |
Annapolis |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2017-06-02 |
|
443-782
| 4 |
Annapolis |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2018-05-27 |
|
443-782
| 5 |
Annapolis |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2018-06-08 |
|
443-782
| 6 |
Annapolis |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-28 |
|
443-782
| 7 |
Annapolis |
MD |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2018-06-15 |
|
443-782
| 8 |
Annapolis |
MD |
BLTMMDCH3MD |
228C IDT AMERICA, CORP. - MD |
238 |
|
2018-01-14 |
|
443-782
| 9 |
Annapolis |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-10-30 |
|
443-783
| A |
Salisbury |
MD |
ESTNMDESQMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
242 |
|
|
|
443-784
| A |
Armiger-Gibson Island |
MD |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-784
| 0 |
Armiger-Gibson Island |
MD |
|
515J IP HORIZON LLC |
238 |
|
2013-09-06 |
|
443-784
| 1 |
Armiger-Gibson Island |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2015-01-12 |
|
443-784
| 2 |
Armiger-Gibson Island |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2014-04-23 |
|
443-784
| 3 |
Armiger-Gibson Island |
MD |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2008-10-01 |
|
443-784
| 4 |
Armiger-Gibson Island |
MD |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
2004-11-15 |
|
443-784
| 5 |
Armiger-Gibson Island |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2014-04-23 |
|
443-784
| 6 |
Armiger-Gibson Island |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2014-04-23 |
|
443-784
| 7 |
Armiger-Gibson Island |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2013-05-23 |
|
443-784
| 8 |
Armiger-Gibson Island |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2013-07-24 |
|
443-784
| 9 |
Armiger-Gibson Island |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2015-01-12 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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