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 |
| 667-686
| 7 |
Ellicott City |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2019-02-08 |
|
| 667-686
| 8 |
Ellicott City |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2019-06-16 |
|
| 667-686
| 9 |
Ellicott City |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2019-05-11 |
|
| 667-687
| A |
Warwick |
MD |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
|
|
| 667-687
| 0 |
Warwick |
MD |
|
939H COMMIO, LLC |
242 |
|
2022-03-27 |
|
| 667-687
| 4 |
Warwick |
MD |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
242 |
|
2022-11-18 |
|
| 667-687
| 6 |
Warwick |
MD |
|
876D ONVOY, LLC - MD |
242 |
|
2021-05-17 |
|
| 667-687
| 7 |
Warwick |
MD |
|
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
242 |
|
2022-11-09 |
|
| 667-687
| 8 |
Warwick |
MD |
|
624H ONVOY SPECTRUM, LLC |
242 |
|
2021-05-27 |
|
| 667-688
| A |
Parkville |
MD |
BLTQMD01AMD |
965H FRACTEL, LLC |
238 |
|
|
|
| 667-688
| 0 |
Parkville |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2021-01-01 |
|
| 667-688
| 1 |
Parkville |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2021-02-09 |
|
| 667-688
| 2 |
Parkville |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2021-03-20 |
|
| 667-688
| 3 |
Parkville |
MD |
|
876D ONVOY, LLC - MD |
238 |
|
2020-12-03 |
|
| 667-688
| 4 |
Parkville |
MD |
|
876D ONVOY, LLC - MD |
238 |
|
2020-12-03 |
|
| 667-688
| 5 |
Parkville |
MD |
|
876D ONVOY, LLC - MD |
238 |
|
2020-12-03 |
|
| 667-688
| 6 |
Parkville |
MD |
|
876D ONVOY, LLC - MD |
238 |
|
2020-12-03 |
|
| 667-688
| 7 |
Parkville |
MD |
|
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2024-09-28 |
|
| 667-688
| 8 |
Parkville |
MD |
|
965H FRACTEL, LLC |
238 |
|
2020-09-12 |
|
| 667-688
| 9 |
Parkville |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2022-08-27 |
|
| 667-693
| A |
Vienna |
MD |
SLBRMD90BMD |
516J TON80 COMMUNICATIONS, LLC |
242 |
|
|
|
| 667-693
| 7 |
Vienna |
MD |
|
516J TON80 COMMUNICATIONS, LLC |
242 |
|
2022-05-26 |
|
| 667-701
| A |
Elkridge |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
|
|
| 667-701
| 0 |
Elkridge |
MD |
|
876D ONVOY, LLC - MD |
238 |
|
2015-12-12 |
|
| 667-701
| 1 |
Elkridge |
MD |
|
876D ONVOY, LLC - MD |
238 |
|
2016-01-29 |
|
| 667-701
| 2 |
Elkridge |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2016-09-19 |
|
| 667-701
| 3 |
Elkridge |
MD |
|
876D ONVOY, LLC - MD |
238 |
|
2016-03-11 |
|
| 667-701
| 4 |
Elkridge |
MD |
|
876D ONVOY, LLC - MD |
238 |
|
2016-03-11 |
|
| 667-701
| 5 |
Elkridge |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2016-04-18 |
|
| 667-701
| 6 |
Elkridge |
MD |
|
515J IP HORIZON LLC |
238 |
|
2016-10-14 |
|
| 667-701
| 7 |
Elkridge |
MD |
|
964H BARR TELL USA, INC. |
238 |
|
2016-12-17 |
|
| 667-701
| 8 |
Elkridge |
MD |
|
515J IP HORIZON LLC |
238 |
|
2016-01-04 |
|
| 667-701
| 9 |
Elkridge |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2015-12-03 |
|
| 667-706
| A |
Elkton |
MD |
BLTMMDCH40Z |
6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP |
238 |
|
|
|
| 667-706
| 0 |
Elkton |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-05-02 |
|
| 667-706
| 1 |
Elkton |
MD |
|
321J HD CARRIER LLC |
238 |
|
2016-09-05 |
|
| 667-706
| 2 |
Elkton |
MD |
|
321J HD CARRIER LLC |
238 |
|
2016-09-05 |
|
| 667-706
| 3 |
Elkton |
MD |
|
321J HD CARRIER LLC |
238 |
|
2016-09-05 |
|
| 667-706
| 4 |
Elkton |
MD |
|
321J HD CARRIER LLC |
238 |
|
2016-09-05 |
|
| 667-706
| 5 |
Elkton |
MD |
|
321J HD CARRIER LLC |
238 |
|
2016-09-05 |
|
| 667-706
| 6 |
Elkton |
MD |
|
321J HD CARRIER LLC |
238 |
|
2016-09-05 |
|
| 667-706
| 7 |
Elkton |
MD |
|
5562 METROPCS, INC. |
238 |
|
2016-09-12 |
|
| 667-706
| 8 |
Elkton |
MD |
|
515J IP HORIZON LLC |
238 |
|
2016-10-14 |
|
| 667-706
| 9 |
Elkton |
MD |
|
6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP |
238 |
|
2016-07-22 |
|
| 667-722
| A |
Glenwood |
MD |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
|
|
| 667-722
| 0 |
Glenwood |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-12-06 |
|
| 667-722
| 1 |
Glenwood |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-12-06 |
|
| 667-722
| 2 |
Glenwood |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-29 |
|
| 667-722
| 3 |
Glenwood |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-29 |
|
| 667-722
| 4 |
Glenwood |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-29 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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