Local Calling Guide
Area code/prefix search
Hampstead, MD
<< 1 2
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 443-508
| 8 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-02-25 |
|
| 443-508
| 9 |
|
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
| 443-639
| A |
|
829J PAETEC ITEL, LLC |
238 |
|
2025-04-01 |
|
| 443-639
| 0 |
|
073H TELNYX LLC |
238 |
|
2017-04-26 |
|
| 443-639
| 1 |
|
876D ONVOY, LLC - MD |
238 |
|
2024-05-23 |
|
| 443-639
| 2 |
|
318J COMCAST IP PHONE, LLC |
238 |
|
2017-07-07 |
|
| 443-639
| 3 |
|
829J PAETEC ITEL, LLC |
238 |
|
|
|
| 443-639
| 4 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-06-04 |
|
| 443-639
| 5 |
|
318J COMCAST IP PHONE, LLC |
238 |
|
2015-04-02 |
|
| 443-639
| 6 |
|
8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) |
238 |
|
2015-06-13 |
|
| 443-639
| 7 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
238 |
|
2014-06-12 |
|
| 443-639
| 8 |
|
876D ONVOY, LLC - MD |
238 |
|
2014-10-21 |
|
| 443-639
| 9 |
|
876D ONVOY, LLC - MD |
238 |
|
2014-10-21 |
|
| 667-366
| A |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
|
|
| 667-366
| 0 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-12-06 |
|
| 667-366
| 1 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-12-06 |
|
| 667-366
| 2 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-29 |
|
| 667-366
| 3 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-29 |
|
| 667-366
| 4 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-29 |
|
| 667-366
| 5 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-29 |
|
| 667-366
| 6 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-29 |
|
| 667-366
| 7 |
|
876D ONVOY, LLC - MD |
238 |
|
2019-02-19 |
|
| 667-366
| 8 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-12-06 |
|
| 667-366
| 9 |
|
876D ONVOY, LLC - MD |
238 |
|
2019-02-19 |
|
| 667-477
| A |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
|
|
| 667-477
| 0 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2022-08-19 |
|
| 667-477
| 1 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2022-08-19 |
|
| 667-477
| 2 |
|
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-01-28 |
|
| 667-477
| 3 |
|
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-01-28 |
|
| 667-477
| 4 |
|
624H ONVOY SPECTRUM, LLC |
238 |
|
2021-05-23 |
|
| 667-477
| 5 |
|
876D ONVOY, LLC - MD |
238 |
|
2021-09-23 |
|
| 667-477
| 6 |
|
876D ONVOY, LLC - MD |
238 |
|
2021-05-22 |
|
| 667-477
| 7 |
|
876D ONVOY, LLC - MD |
238 |
|
2023-08-10 |
|
| 667-477
| 8 |
|
876D ONVOY, LLC - MD |
238 |
|
2023-08-10 |
|
| 667-477
| 9 |
|
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2021-10-06 |
|
| 667-489
| A |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2024-08-04 |
|
| 667-489
| 0 |
|
876D ONVOY, LLC - MD |
238 |
|
2024-08-04 |
|
| 667-489
| 1 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2025-05-17 |
|
<< 1 2
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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