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 |
443-770
| 2 |
Armiger-Gibson Island |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-06-02 |
|
443-770
| 3 |
Armiger-Gibson Island |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-06-02 |
|
443-770
| 4 |
Armiger-Gibson Island |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2013-10-11 |
|
443-770
| 5 |
Armiger-Gibson Island |
MD |
ARMGMDARDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2005-12-14 |
|
443-770
| 6 |
Armiger-Gibson Island |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2014-09-05 |
|
443-770
| 7 |
Armiger-Gibson Island |
MD |
BLTMMDDN2MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
238 |
|
2014-06-25 |
|
443-770
| 8 |
Armiger-Gibson Island |
MD |
ARMGMDARDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
443-770
| 9 |
Armiger-Gibson Island |
MD |
ARMGMDARDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
443-771
| A |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
|
|
443-771
| 0 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2010-11-06 |
|
443-771
| 1 |
Prince Frederick |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2012-03-13 |
|
443-771
| 2 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2012-06-16 |
|
443-771
| 3 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2012-06-16 |
|
443-771
| 4 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2012-06-16 |
|
443-771
| 5 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2012-06-16 |
|
443-771
| 6 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2012-06-16 |
|
443-771
| 7 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2015-09-05 |
|
443-771
| 8 |
Prince Frederick |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-771
| 9 |
Prince Frederick |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-772
| A |
Essex |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-772
| 0 |
Essex |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-772
| 1 |
Essex |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-772
| 2 |
Essex |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-772
| 3 |
Essex |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-772
| 4 |
Essex |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-772
| 5 |
Essex |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2020-08-23 |
|
443-772
| 6 |
Essex |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2020-08-23 |
|
443-772
| 7 |
Essex |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-772
| 8 |
Essex |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-772
| 9 |
Essex |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-773
| A |
Brooklyn Park-Linthicum |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-773
| 0 |
Brooklyn Park-Linthicum |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-773
| 1 |
Brooklyn Park-Linthicum |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-773
| 2 |
Brooklyn Park-Linthicum |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-05-14 |
|
443-773
| 3 |
Brooklyn Park-Linthicum |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-773
| 4 |
Brooklyn Park-Linthicum |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-773
| 5 |
Brooklyn Park-Linthicum |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-773
| 6 |
Brooklyn Park-Linthicum |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-773
| 7 |
Brooklyn Park-Linthicum |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-06-26 |
|
443-773
| 8 |
Brooklyn Park-Linthicum |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-06-16 |
|
443-773
| 9 |
Brooklyn Park-Linthicum |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-774
| A |
Columbia |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
|
|
443-774
| 0 |
Columbia |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2019-04-27 |
|
443-774
| 1 |
Columbia |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2019-04-27 |
|
443-774
| 2 |
Columbia |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-28 |
|
443-774
| 3 |
Columbia |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-28 |
|
443-774
| 4 |
Columbia |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2019-10-07 |
|
443-774
| 5 |
Columbia |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2019-07-20 |
|
443-774
| 6 |
Columbia |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-28 |
|
443-774
| 7 |
Columbia |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-28 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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