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 |
443-705
| 8 |
Cockeysville |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2018-07-19 |
|
443-705
| 9 |
Cockeysville |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2018-07-19 |
|
443-706
| A |
Crisfield |
MD |
SLBRMDSBDC0 |
7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD |
242 |
|
|
|
443-706
| 0 |
Crisfield |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
242 |
|
2018-06-17 |
|
443-706
| 2 |
Crisfield |
MD |
SLBRMDSBDC0 |
7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD |
242 |
|
|
|
443-706
| 3 |
Crisfield |
MD |
ESTNMDES5MD |
7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD |
242 |
|
2009-03-02 |
|
443-706
| 4 |
Crisfield |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
242 |
|
2018-06-17 |
|
443-706
| 5 |
Crisfield |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
242 |
|
2018-06-17 |
|
443-706
| 7 |
Crisfield |
MD |
SLBRMDSBXUX |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
242 |
|
2016-10-10 |
|
443-706
| 8 |
Crisfield |
MD |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2017-04-13 |
|
443-707
| A |
Aberdeen |
MD |
BLTMMDCHLMD |
082H LOCAL ACCESS LLC - MD |
236 |
|
|
|
443-707
| 0 |
Aberdeen |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2014-11-08 |
|
443-707
| 1 |
Aberdeen |
MD |
BLTMMDCHLMD |
082H LOCAL ACCESS LLC - MD |
236 |
|
2014-08-08 |
|
443-707
| 2 |
Aberdeen |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
236 |
|
2015-07-29 |
|
443-707
| 3 |
Aberdeen |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
236 |
|
2015-07-29 |
|
443-707
| 4 |
Aberdeen |
MD |
BLTOMDKHDS0 |
7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD |
236 |
|
2014-11-17 |
|
443-707
| 5 |
Aberdeen |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-01-31 |
|
443-707
| 6 |
Aberdeen |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-01-31 |
|
443-707
| 7 |
Aberdeen |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-01-31 |
|
443-707
| 8 |
Aberdeen |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2014-11-08 |
|
443-707
| 9 |
Aberdeen |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2014-11-08 |
|
443-708
| A |
Baltimore |
MD |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
|
|
443-708
| 0 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2006-12-14 |
|
443-708
| 1 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2006-12-14 |
|
443-708
| 2 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2006-12-14 |
|
443-708
| 3 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2006-12-14 |
|
443-708
| 4 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2006-12-14 |
|
443-708
| 5 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2006-12-14 |
|
443-708
| 6 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2008-04-08 |
|
443-708
| 7 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2007-09-20 |
|
443-708
| 8 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2007-09-20 |
|
443-708
| 9 |
Baltimore |
MD |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
|
|
443-709
| A |
Arbutus |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-709
| 0 |
Arbutus |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-05 |
|
443-709
| 2 |
Arbutus |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-05 |
|
443-709
| 3 |
Arbutus |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-05 |
|
443-709
| 4 |
Arbutus |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-05 |
|
443-709
| 5 |
Arbutus |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2005-02-11 |
|
443-709
| 7 |
Arbutus |
MD |
BLTMMDCHFMD |
5562 METRO PCS, INC. |
238 |
|
2013-06-14 |
|
443-709
| 8 |
Arbutus |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2016-09-08 |
|
443-709
| 9 |
Arbutus |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-05 |
|
443-710
| A |
Catonsville |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-710
| 0 |
Catonsville |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-710
| 1 |
Catonsville |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-03-19 |
|
443-710
| 2 |
Catonsville |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-03-19 |
|
443-710
| 3 |
Catonsville |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-03-19 |
|
443-710
| 4 |
Catonsville |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-710
| 5 |
Catonsville |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-03-19 |
|
443-710
| 6 |
Catonsville |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-03-19 |
|
443-710
| 7 |
Catonsville |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-03-19 |
|
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Last updated: Sun, 28 Feb 2021 19:06:05 UTC
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