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 |
443-729
| 0 |
Woodlawn |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-729
| 1 |
Woodlawn |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-729
| 2 |
Woodlawn |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-729
| 3 |
Woodlawn |
MD |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
2017-04-25 |
|
443-729
| 4 |
Woodlawn |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-729
| 5 |
Woodlawn |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-729
| 6 |
Woodlawn |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2018-12-17 |
|
443-729
| 7 |
Woodlawn |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-05-02 |
|
443-729
| 8 |
Woodlawn |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-729
| 9 |
Woodlawn |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-730
| A |
Essex |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-730
| 0 |
Essex |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-730
| 1 |
Essex |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-730
| 2 |
Essex |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-730
| 3 |
Essex |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-08-14 |
|
443-730
| 4 |
Essex |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-08-14 |
|
443-730
| 5 |
Essex |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-01-14 |
|
443-730
| 6 |
Essex |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2016-03-29 |
|
443-730
| 7 |
Essex |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-27 |
|
443-730
| 8 |
Essex |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-730
| 9 |
Essex |
MD |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
|
|
443-731
| A |
Port Deposit |
MD |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-731
| 0 |
Port Deposit |
MD |
|
876D ONVOY, LLC - MD |
238 |
|
2024-03-03 |
|
443-731
| 1 |
Port Deposit |
MD |
BLTMMDCH47Z |
420C ARMSTRONG TELECOMMUNICATIONS, INC. - MD |
238 |
|
2008-08-05 |
|
443-731
| 2 |
Port Deposit |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2006-03-05 |
|
443-731
| 3 |
Port Deposit |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2008-11-19 |
|
443-731
| 4 |
Port Deposit |
MD |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2017-08-03 |
|
443-731
| 5 |
Port Deposit |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2018-06-16 |
|
443-731
| 6 |
Port Deposit |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2008-12-11 |
|
443-731
| 7 |
Port Deposit |
MD |
BLTMMDCHXVX |
321J HD CARRIER LLC |
238 |
|
2016-05-14 |
|
443-731
| 8 |
Port Deposit |
MD |
|
145J TERRA NOVA TELECOM INC. |
238 |
|
2024-02-15 |
|
443-731
| 9 |
Port Deposit |
MD |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-732
| A |
Silver Run |
MD |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-732
| 0 |
Silver Run |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2008-12-11 |
|
443-732
| 1 |
Silver Run |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
2004-02-05 |
|
443-732
| 2 |
Silver Run |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2019-03-08 |
|
443-732
| 3 |
Silver Run |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2012-10-08 |
|
443-732
| 4 |
Silver Run |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-29 |
|
443-732
| 5 |
Silver Run |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-06-23 |
|
443-732
| 6 |
Silver Run |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2007-01-19 |
|
443-732
| 7 |
Silver Run |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-732
| 8 |
Silver Run |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-732
| 9 |
Silver Run |
MD |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-733
| A |
Waterloo |
MD |
CLMAMDNIDS1 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-733
| 0 |
Waterloo |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
2003-02-16 |
|
443-733
| 1 |
Waterloo |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
2003-03-04 |
|
443-733
| 2 |
Waterloo |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
2009-03-17 |
|
443-733
| 3 |
Waterloo |
MD |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2008-10-01 |
|
443-733
| 4 |
Waterloo |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-04-28 |
|
443-733
| 5 |
Waterloo |
MD |
PIVLMDPKQMD |
9170 BROADVIEW NETWORKS, INC. - MD |
238 |
|
2013-10-10 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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