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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 >>
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
443-594
| 7 |
Sparrows Point |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-24 |
|
443-594
| 8 |
Sparrows Point |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-24 |
|
443-594
| 9 |
Sparrows Point |
MD |
|
515J IP HORIZON LLC |
238 |
|
2016-10-14 |
|
443-595
| A |
Sparks-Glencoe |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-595
| 0 |
Sparks-Glencoe |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-595
| 1 |
Sparks-Glencoe |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-595
| 3 |
Sparks-Glencoe |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
2006-07-01 |
|
443-595
| 4 |
Sparks-Glencoe |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2020-09-28 |
|
443-595
| 5 |
Sparks-Glencoe |
MD |
BLTMMDCHXMX |
506J TWILIO INTERNATIONAL, INC. |
238 |
|
2020-12-26 |
|
443-595
| 6 |
Sparks-Glencoe |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-02-18 |
|
443-595
| 7 |
Sparks-Glencoe |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-05-20 |
|
443-595
| 8 |
Sparks-Glencoe |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2012-05-26 |
|
443-595
| 9 |
Sparks-Glencoe |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2012-10-08 |
|
443-596
| A |
Essex |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
|
|
443-596
| 0 |
Essex |
MD |
|
876D ONVOY, LLC - MD |
238 |
|
2024-02-25 |
|
443-596
| 1 |
Essex |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2020-04-06 |
|
443-596
| 2 |
Essex |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-04-30 |
|
443-596
| 3 |
Essex |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2017-08-16 |
|
443-596
| 4 |
Essex |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2017-10-20 |
|
443-596
| 5 |
Essex |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2017-10-20 |
|
443-596
| 6 |
Essex |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2018-05-27 |
|
443-596
| 7 |
Essex |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2018-06-11 |
|
443-596
| 8 |
Essex |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2018-09-28 |
|
443-596
| 9 |
Essex |
MD |
|
876D ONVOY, LLC - MD |
238 |
|
2024-02-25 |
|
443-597
| A |
Severna Park |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-597
| 0 |
Severna Park |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-597
| 1 |
Severna Park |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-597
| 2 |
Severna Park |
MD |
BLTMMDCH40Z |
5562 METROPCS, INC. |
238 |
|
2007-01-03 |
|
443-597
| 3 |
Severna Park |
MD |
BLTMMDCH40Z |
5562 METROPCS, INC. |
238 |
|
2007-01-03 |
|
443-597
| 4 |
Severna Park |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-597
| 6 |
Severna Park |
MD |
BLTMMDCH40Z |
5562 METROPCS, INC. |
238 |
|
2007-01-03 |
|
443-597
| 7 |
Severna Park |
MD |
BLTMMDCH40Z |
5562 METROPCS, INC. |
238 |
|
2007-01-03 |
|
443-597
| 8 |
Severna Park |
MD |
BLTMMDCH40Z |
5562 METROPCS, INC. |
238 |
|
2006-08-14 |
|
443-597
| 9 |
Severna Park |
MD |
BLTMMDCH40Z |
5562 METROPCS, INC. |
238 |
|
2005-06-05 |
|
443-598
| A |
Sherwood Forest |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-598
| 0 |
Sherwood Forest |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-598
| 1 |
Sherwood Forest |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-598
| 2 |
Sherwood Forest |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2012-09-06 |
|
443-598
| 3 |
Sherwood Forest |
MD |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2008-10-01 |
|
443-598
| 4 |
Sherwood Forest |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-598
| 5 |
Sherwood Forest |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2020-10-17 |
|
443-598
| 6 |
Sherwood Forest |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2013-09-08 |
|
443-598
| 7 |
Sherwood Forest |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2017-03-30 |
|
443-598
| 8 |
Sherwood Forest |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-598
| 9 |
Sherwood Forest |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-599
| A |
Severn |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-599
| 0 |
Severn |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-599
| 1 |
Severn |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-599
| 2 |
Severn |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
2013-06-14 |
|
443-599
| 3 |
Severn |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
2013-06-14 |
|
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Last updated: Fri, 22 Mar 2024 03:02:44 UTC
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