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 |
443-332
| 4 |
Crofton |
MD |
CLMAMDJTDS0 |
2589 US LEC OF MARYLAND, INC. |
238 |
|
2002-07-12 |
|
443-332
| 6 |
Crofton |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
2006-03-28 |
|
443-332
| 8 |
Crofton |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2020-11-29 |
|
443-333
| A |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
|
|
443-333
| 0 |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2009-06-02 |
|
443-333
| 1 |
Annapolis |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-02-19 |
|
443-333
| 2 |
Annapolis |
MD |
EKRGMD92MMD |
6664 SPRINT SPECTRUM L.P. |
238 |
|
2011-11-09 |
|
443-333
| 3 |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2010-04-15 |
|
443-333
| 4 |
Annapolis |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2011-11-09 |
|
443-333
| 5 |
Annapolis |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
2010-07-18 |
|
443-333
| 6 |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2009-06-23 |
|
443-333
| 7 |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2009-06-23 |
|
443-333
| 8 |
Annapolis |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-10-28 |
|
443-333
| 9 |
Annapolis |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-11-28 |
|
443-334
| A |
Pikesville |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-334
| 0 |
Pikesville |
MD |
BLTMMD91DS1 |
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2004-04-02 |
|
443-334
| 1 |
Pikesville |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-334
| 2 |
Pikesville |
MD |
PIVLMDPKDS1 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2003-10-30 |
|
443-334
| 3 |
Pikesville |
MD |
PIVLMDPKDS1 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2003-10-30 |
|
443-334
| 4 |
Pikesville |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
2005-03-10 |
|
443-334
| 5 |
Pikesville |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE LLC |
238 |
|
2013-10-30 |
|
443-334
| 6 |
Pikesville |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2016-09-08 |
|
443-334
| 7 |
Pikesville |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2016-10-24 |
|
443-334
| 8 |
Pikesville |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2007-12-04 |
|
443-334
| 9 |
Pikesville |
MD |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2019-04-22 |
|
443-335
| A |
Brooklyn Park-Linthicum |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-335
| 0 |
Brooklyn Park-Linthicum |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-06-16 |
|
443-335
| 1 |
Brooklyn Park-Linthicum |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-06-16 |
|
443-335
| 2 |
Brooklyn Park-Linthicum |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2018-11-18 |
|
443-335
| 3 |
Brooklyn Park-Linthicum |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-335
| 4 |
Brooklyn Park-Linthicum |
MD |
BLTMMDCHFMD |
5562 METRO PCS, INC. |
238 |
|
2019-10-13 |
|
443-335
| 5 |
Brooklyn Park-Linthicum |
MD |
BLTMMDCHFMD |
5562 METRO PCS, INC. |
238 |
|
2020-01-24 |
|
443-335
| 6 |
Brooklyn Park-Linthicum |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2020-10-26 |
|
443-335
| 7 |
Brooklyn Park-Linthicum |
MD |
BLTMMDCHXMX |
506J TWILIO INTERNATIONAL INC |
238 |
|
2020-12-26 |
|
443-335
| 8 |
Brooklyn Park-Linthicum |
MD |
|
876D ONVOY, LLC - MD |
238 |
|
2021-03-04 |
|
443-335
| 9 |
Brooklyn Park-Linthicum |
MD |
|
876D ONVOY, LLC - MD |
238 |
|
2021-03-04 |
|
443-336
| A |
Annapolis |
MD |
EKRGMD92MMD |
6664 SPRINT SPECTRUM L.P. |
238 |
|
|
|
443-337
| A |
Sparrows Point |
MD |
BLTMMDCHYMD |
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-337
| 1 |
Sparrows Point |
MD |
BLTMMDCHFMD |
5562 METRO PCS, INC. |
238 |
|
2019-10-13 |
|
443-337
| 2 |
Sparrows Point |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2019-03-29 |
|
443-337
| 3 |
Sparrows Point |
MD |
BLTMMDCHFMD |
5562 METRO PCS, INC. |
238 |
|
2017-10-01 |
|
443-337
| 4 |
Sparrows Point |
MD |
BLTMMDCHFMD |
5562 METRO PCS, INC. |
238 |
|
2018-01-06 |
|
443-337
| 5 |
Sparrows Point |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-06-16 |
|
443-337
| 6 |
Sparrows Point |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-06-16 |
|
443-337
| 7 |
Sparrows Point |
MD |
|
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2018-06-16 |
|
443-337
| 8 |
Sparrows Point |
MD |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2019-03-29 |
|
443-337
| 9 |
Sparrows Point |
MD |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC. - MD |
238 |
|
2019-07-31 |
|
443-338
| A |
Sparks-Glencoe |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
|
|
443-338
| 0 |
Sparks-Glencoe |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2019-06-07 |
|
443-338
| 1 |
Sparks-Glencoe |
MD |
BLTQMD010MD |
082H LOCAL ACCESS LLC - MD |
238 |
|
2015-03-21 |
|
<< 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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