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 |
443-226
| 6 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-226
| 7 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-226
| 8 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-226
| 9 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
443-227
| A |
Port Deposit |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
|
|
443-227
| 0 |
Port Deposit |
MD |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
2017-04-26 |
|
443-227
| 1 |
Port Deposit |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
|
|
443-227
| 2 |
Port Deposit |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-07-07 |
|
443-227
| 3 |
Port Deposit |
MD |
BLTMMDCHXVX |
321J HD CARRIER LLC |
238 |
|
2016-05-14 |
|
443-227
| 4 |
Port Deposit |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-17 |
|
443-227
| 5 |
Port Deposit |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-17 |
|
443-227
| 6 |
Port Deposit |
MD |
BLTMMDCHXVX |
321J HD CARRIER LLC |
238 |
|
2016-05-14 |
|
443-227
| 7 |
Port Deposit |
MD |
BLTMMDDN2MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
238 |
|
2014-06-12 |
|
443-227
| 8 |
Port Deposit |
MD |
BLTMMDCHXVX |
321J HD CARRIER LLC |
238 |
|
2016-05-14 |
|
443-227
| 9 |
Port Deposit |
MD |
BLTMMDCHXVX |
321J HD CARRIER LLC |
238 |
|
2016-05-14 |
|
443-228
| A |
Chase |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-228
| 0 |
Chase |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-228
| 1 |
Chase |
MD |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-228
| 2 |
Chase |
MD |
BLTMMDCHXMX |
506J TWILIO INTERNATIONAL, INC. |
238 |
|
2020-12-26 |
|
443-228
| 3 |
Chase |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2021-01-18 |
|
443-228
| 4 |
Chase |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
2005-12-12 |
|
443-228
| 5 |
Chase |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2006-05-26 |
|
443-228
| 6 |
Chase |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-02-22 |
|
443-228
| 7 |
Chase |
MD |
|
515J IP HORIZON LLC |
238 |
|
2016-05-31 |
|
443-228
| 8 |
Chase |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2008-12-11 |
|
443-228
| 9 |
Chase |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2021-02-24 |
|
443-229
| A |
Severna Park |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-229
| 0 |
Severna Park |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-229
| 1 |
Severna Park |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2020-11-30 |
|
443-229
| 2 |
Severna Park |
MD |
BLTMMDSNDS6 |
281E YMAX COMMUNICATIONS CORP. - MD |
238 |
|
2009-02-12 |
|
443-229
| 3 |
Severna Park |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-229
| 4 |
Severna Park |
MD |
BLTMMDSNDS6 |
281E YMAX COMMUNICATIONS CORP. - MD |
238 |
|
2009-08-20 |
|
443-229
| 5 |
Severna Park |
MD |
BLTMMDCHXMX |
506J TWILIO INTERNATIONAL, INC. |
238 |
|
2020-12-26 |
|
443-229
| 6 |
Severna Park |
MD |
BLTMMDSNDS6 |
281E YMAX COMMUNICATIONS CORP. - MD |
238 |
|
2009-09-25 |
|
443-229
| 7 |
Severna Park |
MD |
BLTMMDSNDS6 |
281E YMAX COMMUNICATIONS CORP. - MD |
238 |
|
2009-09-25 |
|
443-229
| 8 |
Severna Park |
MD |
BLTMMDCHXQX |
197D VONAGE AMERICA LLC |
238 |
|
2022-10-07 |
|
443-229
| 9 |
Severna Park |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-230
| A |
Odenton |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
|
|
443-230
| 0 |
Odenton |
MD |
|
145J TERRA NOVA TELECOM INC. |
238 |
|
2021-01-28 |
|
443-230
| 1 |
Odenton |
MD |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
|
|
443-230
| 2 |
Odenton |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-03-04 |
|
443-230
| 3 |
Odenton |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2014-07-04 |
|
443-230
| 4 |
Odenton |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2016-09-08 |
|
443-230
| 5 |
Odenton |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-29 |
|
443-230
| 6 |
Odenton |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
2016-11-17 |
|
443-230
| 7 |
Odenton |
MD |
BLTMMDDN2MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
238 |
|
2014-06-25 |
|
443-230
| 8 |
Odenton |
MD |
|
515J IP HORIZON LLC |
238 |
|
2016-01-04 |
|
443-230
| 9 |
Odenton |
MD |
|
515J IP HORIZON LLC |
238 |
|
2015-03-23 |
|
443-231
| A |
Essex |
MD |
BLTMMDCHCMD |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-231
| 0 |
Essex |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2005-02-11 |
|
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Last updated: Sat, 01 Jun 2024 11:59:14 UTC
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