Local Calling Guide
Area code/prefix search
NPA: 667
[Rate centres in NPA 667]
[Dial plan for NPA 667]
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| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 667-308
| 7 |
Towson |
MD |
BLTMMDDN2MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
238 |
|
2013-10-01 |
|
| 667-308
| 8 |
Towson |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-01-11 |
|
| 667-308
| 9 |
Towson |
MD |
|
515J IP HORIZON LLC |
238 |
|
2013-09-06 |
|
| 667-309
| A |
Baltimore |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
|
|
| 667-309
| 0 |
Baltimore |
MD |
|
515J IP HORIZON LLC |
238 |
|
2014-11-27 |
|
| 667-309
| 1 |
Baltimore |
MD |
|
515J IP HORIZON LLC |
238 |
|
2013-09-22 |
|
| 667-309
| 2 |
Baltimore |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-07-27 |
|
| 667-309
| 3 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2014-05-30 |
|
| 667-309
| 4 |
Baltimore |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-07-27 |
|
| 667-309
| 5 |
Baltimore |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-07-27 |
|
| 667-309
| 6 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2014-03-04 |
|
| 667-309
| 7 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2014-03-04 |
|
| 667-309
| 8 |
Baltimore |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-07-27 |
|
| 667-309
| 9 |
Baltimore |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-07-27 |
|
| 667-310
| A |
Parkville |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
| 667-310
| 0 |
Parkville |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2021-07-30 |
|
| 667-310
| 1 |
Parkville |
MD |
CLMAMDORAMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2021-10-17 |
|
| 667-310
| 2 |
Parkville |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-09-23 |
|
| 667-310
| 3 |
Parkville |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2021-05-29 |
|
| 667-310
| 4 |
Parkville |
MD |
BLTQMD013MD |
939H COMMIO, LLC |
238 |
|
2021-08-28 |
|
| 667-310
| 5 |
Parkville |
MD |
BLTQMD013MD |
939H COMMIO, LLC |
238 |
|
2021-08-28 |
|
| 667-310
| 6 |
Parkville |
MD |
BLTQMD013MD |
939H COMMIO, LLC |
238 |
|
2021-08-28 |
|
| 667-310
| 7 |
Parkville |
MD |
BLTQMD013MD |
939H COMMIO, LLC |
238 |
|
2021-08-28 |
|
| 667-310
| 8 |
Parkville |
MD |
BLTQMD013MD |
939H COMMIO, LLC |
238 |
|
2021-08-28 |
|
| 667-310
| 9 |
Parkville |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2021-05-28 |
|
| 667-312
| A |
Baltimore |
MD |
BLTMMDSN1MD |
361H ATLANTECH ONLINE, INC. - MD |
238 |
|
|
|
| 667-312
| 0 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-10-09 |
|
| 667-312
| 1 |
Baltimore |
MD |
BLTMMDSN1MD |
361H ATLANTECH ONLINE, INC. - MD |
238 |
|
2015-07-20 |
|
| 667-312
| 2 |
Baltimore |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2016-01-05 |
|
| 667-312
| 3 |
Baltimore |
MD |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2015-11-16 |
|
| 667-312
| 4 |
Baltimore |
MD |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2017-02-09 |
|
| 667-312
| 5 |
Baltimore |
MD |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2018-11-15 |
|
| 667-312
| 6 |
Baltimore |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-04-12 |
|
| 667-312
| 7 |
Baltimore |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-04-12 |
|
| 667-312
| 8 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-10-09 |
|
| 667-312
| 9 |
Baltimore |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-10-09 |
|
| 667-313
| A |
Pikesville |
MD |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
|
|
| 667-313
| 0 |
Pikesville |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2016-01-30 |
|
| 667-313
| 1 |
Pikesville |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2016-01-30 |
|
| 667-313
| 2 |
Pikesville |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2016-01-30 |
|
| 667-313
| 3 |
Pikesville |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2016-01-30 |
|
| 667-313
| 4 |
Pikesville |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2016-01-30 |
|
| 667-313
| 5 |
Pikesville |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2016-01-30 |
|
| 667-313
| 6 |
Pikesville |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2016-01-30 |
|
| 667-313
| 7 |
Pikesville |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2016-01-30 |
|
| 667-313
| 8 |
Pikesville |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2016-01-30 |
|
| 667-313
| 9 |
Pikesville |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2016-01-30 |
|
| 667-314
| A |
Westminster |
MD |
BLTQMD012MD |
964H BARR TELL USA, INC. |
238 |
|
|
|
| 667-314
| 0 |
Westminster |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2019-07-12 |
|
| 667-314
| 1 |
Westminster |
MD |
BLTQMD012MD |
964H BARR TELL USA, INC. |
238 |
|
2016-12-17 |
|
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Last updated: Thu, 16 Jul 2026 02:21:55 UTC
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