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 |
443-439
| A |
Trappe |
MD |
ESTNMDESQMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
242 |
|
|
|
443-439
| 0 |
Trappe |
MD |
SLBRMD90DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
242 |
|
2018-11-20 |
|
443-439
| 2 |
Trappe |
MD |
SLBRMDSBXFX |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
242 |
|
2016-10-16 |
|
443-439
| 3 |
Trappe |
MD |
SLBRMD902MD |
073H TELNYX LLC |
242 |
|
2017-09-13 |
|
443-439
| 4 |
Trappe |
MD |
SLBRMD90DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
242 |
|
2018-03-11 |
|
443-439
| 5 |
Trappe |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
242 |
|
2018-06-17 |
|
443-439
| 6 |
Trappe |
MD |
ESTNMDESQMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
242 |
|
2012-05-04 |
|
443-439
| 7 |
Trappe |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
242 |
|
2018-06-17 |
|
443-439
| 8 |
Trappe |
MD |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2017-04-14 |
|
443-439
| 9 |
Trappe |
MD |
ESTNMDESQMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
242 |
|
2006-06-02 |
|
443-440
| A |
Annapolis |
MD |
ANNPMDANDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
443-440
| 0 |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2010-09-10 |
|
443-440
| 1 |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2010-09-10 |
|
443-440
| 2 |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2010-09-10 |
|
443-440
| 3 |
Annapolis |
MD |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
2010-11-07 |
|
443-440
| 4 |
Annapolis |
MD |
ANNPMDANDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
443-440
| 5 |
Annapolis |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-06-26 |
|
443-440
| 6 |
Annapolis |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
2010-08-16 |
|
443-440
| 7 |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2011-09-04 |
|
443-440
| 8 |
Annapolis |
MD |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
2011-02-11 |
|
443-440
| 9 |
Annapolis |
MD |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
2011-02-11 |
|
443-441
| A |
Glenwood |
MD |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-441
| 0 |
Glenwood |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-441
| 1 |
Glenwood |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-441
| 2 |
Glenwood |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2016-10-16 |
|
443-441
| 3 |
Glenwood |
MD |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
2017-04-26 |
|
443-441
| 4 |
Glenwood |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-06-16 |
|
443-441
| 5 |
Glenwood |
MD |
BLTOMDKHDS0 |
7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD |
238 |
|
2018-01-22 |
|
443-441
| 6 |
Glenwood |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-06-16 |
|
443-441
| 7 |
Glenwood |
MD |
|
508J CENTURYLINK COMMUNICATIONS LLC |
238 |
|
2014-06-12 |
|
443-441
| 8 |
Glenwood |
MD |
BLTMMDCHLMD |
082H LOCAL ACCESS LLC - MD |
238 |
|
2016-05-31 |
|
443-441
| 9 |
Glenwood |
MD |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-442
| A |
Parkville |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-442
| 0 |
Parkville |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-442
| 1 |
Parkville |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-442
| 2 |
Parkville |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-442
| 3 |
Parkville |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2020-05-11 |
|
443-442
| 4 |
Parkville |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2014-07-01 |
|
443-442
| 5 |
Parkville |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2020-05-11 |
|
443-442
| 6 |
Parkville |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2014-07-18 |
|
443-442
| 7 |
Parkville |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2015-10-01 |
|
443-442
| 8 |
Parkville |
MD |
HNVAMDBHRS0 |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-444
| A |
Baltimore |
MD |
BLTMMDYKDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
443-444
| 0 |
Baltimore |
MD |
BLTMMDYKDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2005-08-27 |
|
443-444
| 1 |
Baltimore |
MD |
BLTMMDYKDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2005-08-27 |
|
443-444
| 2 |
Baltimore |
MD |
BLTMMDYKDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2005-08-27 |
|
443-444
| 3 |
Baltimore |
MD |
BLTMMDYKDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2005-08-27 |
|
443-444
| 4 |
Baltimore |
MD |
BLTMMDYKDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2005-08-27 |
|
443-444
| 5 |
Baltimore |
MD |
BLTMMDYKDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2005-08-27 |
|
443-444
| 6 |
Baltimore |
MD |
BLTMMDYKDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2005-08-27 |
|
<< 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 >>
Last updated: Sun, 28 Feb 2021 19:06:05 UTC
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