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 >>
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
443-429
| 0 |
Woodlawn |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-07-02 |
|
443-429
| 1 |
Woodlawn |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2012-10-08 |
|
443-429
| 2 |
Woodlawn |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2014-04-17 |
|
443-429
| 3 |
Woodlawn |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-01 |
|
443-429
| 4 |
Woodlawn |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-01 |
|
443-429
| 5 |
Woodlawn |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-01 |
|
443-429
| 6 |
Woodlawn |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-01 |
|
443-429
| 7 |
Woodlawn |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
2001-11-01 |
|
443-429
| 8 |
Woodlawn |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-429
| 9 |
Woodlawn |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-430
| A |
Columbia |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-430
| 0 |
Columbia |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-430
| 1 |
Columbia |
MD |
|
515J IP HORIZON LLC |
238 |
|
2016-10-14 |
|
443-430
| 2 |
Columbia |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
2005-08-14 |
|
443-430
| 3 |
Columbia |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-430
| 4 |
Columbia |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2016-09-26 |
|
443-430
| 5 |
Columbia |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2016-09-26 |
|
443-430
| 6 |
Columbia |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
2005-08-14 |
|
443-430
| 7 |
Columbia |
MD |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2008-05-30 |
|
443-430
| 8 |
Columbia |
MD |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2006-03-11 |
|
443-430
| 9 |
Columbia |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-431
| A |
Randallstown |
MD |
BLTQMD01BMD |
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
|
|
443-431
| 0 |
Randallstown |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2020-04-06 |
|
443-431
| 2 |
Randallstown |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-07-31 |
|
443-431
| 3 |
Randallstown |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2017-11-24 |
|
443-431
| 4 |
Randallstown |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2017-11-24 |
|
443-431
| 5 |
Randallstown |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-06-16 |
|
443-431
| 6 |
Randallstown |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-06-16 |
|
443-431
| 7 |
Randallstown |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-06-16 |
|
443-431
| 8 |
Randallstown |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2018-10-19 |
|
443-431
| 9 |
Randallstown |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2018-08-27 |
|
443-432
| A |
Prince Frederick |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
|
|
443-432
| 0 |
Prince Frederick |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2015-12-07 |
|
443-432
| 1 |
Prince Frederick |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
|
|
443-432
| 2 |
Prince Frederick |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2014-10-20 |
|
443-432
| 3 |
Prince Frederick |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2014-10-15 |
|
443-432
| 4 |
Prince Frederick |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2014-10-20 |
|
443-432
| 5 |
Prince Frederick |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-05-08 |
|
443-432
| 6 |
Prince Frederick |
MD |
|
515J IP HORIZON LLC |
238 |
|
2015-03-23 |
|
443-432
| 7 |
Prince Frederick |
MD |
BLTMMDDN2MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
238 |
|
2014-06-12 |
|
443-432
| 8 |
Prince Frederick |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2014-10-10 |
|
443-432
| 9 |
Prince Frederick |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2013-12-27 |
|
443-433
| A |
Annapolis |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-433
| 0 |
Annapolis |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-433
| 1 |
Annapolis |
MD |
PIVLMDPKFMD |
5966 LIGHTWAVE COMMUNICATIONS, LLC - MD |
238 |
|
2005-10-07 |
|
443-433
| 2 |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2006-03-02 |
|
443-433
| 3 |
Annapolis |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
2005-04-18 |
|
443-433
| 4 |
Annapolis |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-433
| 5 |
Annapolis |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-433
| 6 |
Annapolis |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2006-03-02 |
|
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Last updated: Wed, 07 Feb 2024 04:12:25 UTC
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