Local Calling Guide
Area code/prefix search
Baltimore, MD
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 667-290
| 5 |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2020-11-01 |
|
| 667-290
| 6 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2020-12-26 |
|
| 667-290
| 7 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2020-12-26 |
|
| 667-290
| 8 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-02-18 |
|
| 667-290
| 9 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-02-18 |
|
| 667-303
| A |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
|
|
| 667-303
| 0 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-08-09 |
|
| 667-303
| 1 |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
2013-05-08 |
|
| 667-303
| 2 |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
2014-02-06 |
|
| 667-303
| 3 |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2014-04-14 |
|
| 667-303
| 4 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-08-09 |
|
| 667-303
| 5 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-08-09 |
|
| 667-303
| 6 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-08-09 |
|
| 667-303
| 7 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-08-09 |
|
| 667-303
| 8 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-08-09 |
|
| 667-303
| 9 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-10-09 |
|
| 667-306
| A |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
| 667-306
| 0 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 1 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 2 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 3 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 4 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 5 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 6 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 7 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 8 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 9 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-309
| A |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
|
|
| 667-309
| 0 |
|
515J IP HORIZON LLC |
238 |
|
2014-11-27 |
|
| 667-309
| 1 |
|
515J IP HORIZON LLC |
238 |
|
2013-09-22 |
|
| 667-309
| 2 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-07-27 |
|
| 667-309
| 3 |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2014-05-30 |
|
| 667-309
| 4 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-07-27 |
|
| 667-309
| 5 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-07-27 |
|
| 667-309
| 6 |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2014-03-04 |
|
| 667-309
| 7 |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2014-03-04 |
|
| 667-309
| 8 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-07-27 |
|
| 667-309
| 9 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-07-27 |
|
| 667-312
| A |
BLTMMDSN1MD |
361H ATLANTECH ONLINE, INC. - MD |
238 |
|
|
|
| 667-312
| 0 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-10-09 |
|
| 667-312
| 1 |
BLTMMDSN1MD |
361H ATLANTECH ONLINE, INC. - MD |
238 |
|
2015-07-20 |
|
| 667-312
| 2 |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2016-01-05 |
|
| 667-312
| 3 |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2015-11-16 |
|
| 667-312
| 4 |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2017-02-09 |
|
| 667-312
| 5 |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2018-11-15 |
|
| 667-312
| 6 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-04-12 |
|
| 667-312
| 7 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-04-12 |
|
| 667-312
| 8 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-10-09 |
|
| 667-312
| 9 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2015-10-09 |
|
| 667-335
| A |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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