Local Calling Guide
Area code/prefix search
Columbia, MD
<< 1 2 3 4 5 6 7 8 9 10 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 667-257
| 7 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2019-11-26 |
|
| 667-257
| 8 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-06-27 |
|
| 667-257
| 9 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-06-27 |
|
| 667-261
| A |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
|
|
| 667-261
| 0 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2020-02-24 |
|
| 667-261
| 1 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2020-02-24 |
|
| 667-261
| 2 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2020-02-24 |
|
| 667-261
| 3 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2020-04-08 |
|
| 667-261
| 4 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2020-04-08 |
|
| 667-261
| 5 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2020-04-08 |
|
| 667-261
| 6 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-01-11 |
|
| 667-261
| 7 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-01-11 |
|
| 667-261
| 8 |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2020-06-21 |
|
| 667-261
| 9 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2020-02-07 |
|
| 667-300
| A |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
|
|
| 667-300
| 0 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-07-23 |
|
| 667-300
| 1 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-07-23 |
|
| 667-300
| 2 |
BLTMMDCHXQX |
197D VONAGE AMERICA LLC |
238 |
|
2018-12-06 |
|
| 667-300
| 3 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-07-23 |
|
| 667-300
| 4 |
BLTMMDCHXQX |
197D VONAGE AMERICA LLC |
238 |
|
2018-12-06 |
|
| 667-300
| 5 |
BLTMMDCHXQX |
197D VONAGE AMERICA LLC |
238 |
|
2018-12-06 |
|
| 667-300
| 6 |
BLTMMDCHXQX |
197D VONAGE AMERICA LLC |
238 |
|
2018-12-06 |
|
| 667-300
| 7 |
BLTMMDCHXQX |
197D VONAGE AMERICA LLC |
238 |
|
2018-12-06 |
|
| 667-300
| 8 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2018-08-04 |
|
| 667-300
| 9 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2018-08-04 |
|
| 667-359
| A |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
|
|
| 667-359
| 0 |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2021-12-26 |
|
| 667-359
| 1 |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2021-12-26 |
|
| 667-359
| 2 |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2021-12-26 |
|
| 667-359
| 3 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2022-04-25 |
|
| 667-359
| 4 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2022-12-18 |
|
| 667-359
| 5 |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2022-08-27 |
|
| 667-359
| 6 |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-01-15 |
|
| 667-359
| 7 |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-01-15 |
|
| 667-359
| 8 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2022-06-13 |
|
| 667-359
| 9 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2022-06-13 |
|
| 667-421
| A |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
|
|
| 667-421
| 0 |
BLTQMD019MD |
490J DISH WIRELESS, LLC |
238 |
|
2024-01-21 |
|
| 667-421
| 1 |
BLTQMD019MD |
490J DISH WIRELESS, LLC |
238 |
|
2024-04-26 |
|
| 667-421
| 2 |
|
876D ONVOY, LLC - MD |
238 |
|
2024-02-25 |
|
| 667-421
| 3 |
|
876D ONVOY, LLC - MD |
238 |
|
2024-02-25 |
|
| 667-421
| 4 |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2024-03-21 |
|
| 667-421
| 5 |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2024-03-21 |
|
| 667-421
| 7 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2023-06-26 |
|
| 667-421
| 8 |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
2023-04-24 |
|
| 667-421
| 9 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2023-06-26 |
|
| 667-447
| A |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
| 667-447
| 4 |
BLTQMD018MD |
145J TERRA NOVA TELECOM INC. |
238 |
|
2023-11-13 |
|
| 667-447
| 7 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2023-10-07 |
|
| 667-447
| 9 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2023-10-07 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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