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 |
443-744
| 2 |
Reisterstown |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
|
|
443-744
| 3 |
Reisterstown |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
|
|
443-744
| 4 |
Reisterstown |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
|
|
443-744
| 5 |
Reisterstown |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
|
|
443-744
| 6 |
Reisterstown |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
|
|
443-744
| 7 |
Reisterstown |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
|
|
443-744
| 8 |
Reisterstown |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2017-01-20 |
|
443-744
| 9 |
Reisterstown |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
|
|
443-745
| A |
Columbia |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
|
|
443-746
| A |
Easton |
MD |
SLBRMDSBXFX |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
242 |
|
|
|
443-746
| 0 |
Easton |
MD |
SLBRMDSBXFX |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
242 |
|
2010-02-20 |
|
443-746
| 1 |
Easton |
MD |
SLBRMDSC2MD |
5562 METROPCS, INC. |
242 |
|
2021-09-21 |
|
443-746
| 2 |
Easton |
MD |
SLBRMDSBXFX |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
242 |
|
2014-10-23 |
|
443-746
| 3 |
Easton |
MD |
SLBRMDSBXFX |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
242 |
|
|
|
443-746
| 4 |
Easton |
MD |
ESTNMDES5MD |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
242 |
|
2015-09-01 |
|
443-746
| 5 |
Easton |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
242 |
|
2019-04-12 |
|
443-746
| 6 |
Easton |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
242 |
|
2019-04-12 |
|
443-746
| 7 |
Easton |
MD |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2020-04-30 |
|
443-746
| 8 |
Easton |
MD |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2020-04-30 |
|
443-746
| 9 |
Easton |
MD |
SLBRMDSBXMD |
073H TELNYX LLC |
242 |
|
2022-08-01 |
|
443-747
| A |
Port Deposit |
MD |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
|
|
443-747
| 0 |
Port Deposit |
MD |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2004-04-02 |
|
443-747
| 1 |
Port Deposit |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-06-18 |
|
443-747
| 2 |
Port Deposit |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
2004-02-05 |
|
443-747
| 3 |
Port Deposit |
MD |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
|
|
443-747
| 4 |
Port Deposit |
MD |
BLTMMDCH3MD |
228C IDT AMERICA, CORP. - MD |
238 |
|
2012-01-08 |
|
443-747
| 5 |
Port Deposit |
MD |
BLTMMDCH25Z |
8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) |
238 |
|
2006-05-04 |
|
443-747
| 6 |
Port Deposit |
MD |
BLTMMDCHXVX |
321J HD CARRIER LLC |
238 |
|
2016-05-14 |
|
443-747
| 7 |
Port Deposit |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2012-10-08 |
|
443-747
| 8 |
Port Deposit |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-747
| 9 |
Port Deposit |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-748
| A |
Millersville |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-748
| 0 |
Millersville |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-748
| 1 |
Millersville |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-04-02 |
|
443-748
| 2 |
Millersville |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-748
| 3 |
Millersville |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-748
| 4 |
Millersville |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-748
| 5 |
Millersville |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-02-05 |
|
443-748
| 6 |
Millersville |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-06-16 |
|
443-748
| 7 |
Millersville |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-06-16 |
|
443-748
| 8 |
Millersville |
MD |
BLTMMDCHXMX |
506J TWILIO INTERNATIONAL, INC. |
238 |
|
2020-12-26 |
|
443-748
| 9 |
Millersville |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2022-11-23 |
|
443-749
| A |
Glen Burnie |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-749
| 0 |
Glen Burnie |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-749
| 1 |
Glen Burnie |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-749
| 2 |
Glen Burnie |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-749
| 3 |
Glen Burnie |
MD |
BLTMMDCHXQX |
197D VONAGE AMERICA LLC |
238 |
|
2020-05-13 |
|
443-749
| 4 |
Glen Burnie |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-749
| 5 |
Glen Burnie |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-749
| 6 |
Glen Burnie |
MD |
BLTMMDCHXQX |
197D VONAGE AMERICA LLC |
238 |
|
2020-05-13 |
|
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Last updated: Wed, 07 Feb 2024 04:12:25 UTC
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