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 |
443-624
| 2 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
|
|
443-624
| 3 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
|
|
443-624
| 4 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
|
|
443-624
| 5 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2005-04-01 |
|
443-624
| 6 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2006-08-07 |
|
443-624
| 7 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2005-09-01 |
|
443-624
| 8 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2006-01-02 |
|
443-624
| 9 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2006-08-07 |
|
443-625
| A |
Fork |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-625
| 0 |
Fork |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-10-22 |
|
443-625
| 1 |
Fork |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2001-10-17 |
|
443-625
| 2 |
Fork |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-06-13 |
|
443-625
| 3 |
Fork |
MD |
BLTOMDKHDS0 |
7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD |
238 |
|
2008-10-01 |
|
443-625
| 4 |
Fork |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-06-13 |
|
443-625
| 5 |
Fork |
MD |
CLMAMDJTDS0 |
2589 US LEC OF MARYLAND, INC. |
238 |
|
2002-11-16 |
|
443-625
| 6 |
Fork |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-09-02 |
|
443-625
| 7 |
Fork |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-09-02 |
|
443-625
| 8 |
Fork |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2004-04-09 |
|
443-625
| 9 |
Fork |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2004-02-18 |
|
443-626
| A |
Chase |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-626
| 0 |
Chase |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-626
| 1 |
Chase |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2020-07-08 |
|
443-626
| 2 |
Chase |
MD |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2019-04-30 |
|
443-626
| 3 |
Chase |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2020-07-08 |
|
443-626
| 4 |
Chase |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-06-04 |
|
443-626
| 5 |
Chase |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-626
| 6 |
Chase |
MD |
BLTQMD010MD |
082H LOCAL ACCESS LLC - MD |
238 |
|
2015-03-21 |
|
443-626
| 7 |
Chase |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2014-09-22 |
|
443-626
| 8 |
Chase |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2020-06-21 |
|
443-626
| 9 |
Chase |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2020-07-08 |
|
443-627
| A |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-627
| 0 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2007-02-08 |
|
443-627
| 1 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2007-02-08 |
|
443-627
| 2 |
Baltimore |
MD |
CLMAMDJTDS0 |
2589 US LEC OF MARYLAND, INC. |
238 |
|
2007-02-05 |
|
443-627
| 3 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2007-02-08 |
|
443-627
| 4 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2006-11-28 |
|
443-627
| 5 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2006-11-28 |
|
443-627
| 6 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2006-11-28 |
|
443-627
| 7 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2007-02-07 |
|
443-627
| 8 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2008-06-09 |
|
443-627
| 9 |
Baltimore |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
2010-10-20 |
|
443-628
| A |
Glen Burnie |
MD |
BLTMMDCHYMD |
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-628
| 0 |
Glen Burnie |
MD |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2019-04-30 |
|
443-628
| 1 |
Glen Burnie |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2019-08-01 |
|
443-628
| 2 |
Glen Burnie |
MD |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2019-05-01 |
|
443-628
| 3 |
Glen Burnie |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-06-16 |
|
443-628
| 4 |
Glen Burnie |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-06-16 |
|
443-628
| 5 |
Glen Burnie |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-06-16 |
|
443-628
| 6 |
Glen Burnie |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2018-09-30 |
|
443-628
| 7 |
Glen Burnie |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2018-04-02 |
|
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Last updated: Sun, 28 Feb 2021 19:06:05 UTC
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