Local Calling Guide
Area code/prefix search
NPA: 667
[Rate centres in NPA 667]
[Dial plan for NPA 667]
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 667-304
| 1 |
Essex |
MD |
CLMAMDORAMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2021-04-25 |
|
| 667-304
| 2 |
Essex |
MD |
CLMAMDORAMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2021-07-02 |
|
| 667-304
| 3 |
Essex |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2021-05-22 |
|
| 667-304
| 4 |
Essex |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-07-11 |
|
| 667-304
| 5 |
Essex |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-07-11 |
|
| 667-304
| 6 |
Essex |
MD |
CLMAMDORAMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2022-10-03 |
|
| 667-304
| 7 |
Essex |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
2021-07-12 |
|
| 667-304
| 8 |
Essex |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2021-04-30 |
|
| 667-304
| 9 |
Essex |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2021-06-05 |
|
| 667-305
| A |
Pikesville |
MD |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
|
|
| 667-305
| 0 |
Pikesville |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2016-02-06 |
|
| 667-305
| 1 |
Pikesville |
MD |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
2013-07-12 |
|
| 667-305
| 2 |
Pikesville |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-06-11 |
|
| 667-305
| 3 |
Pikesville |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-06-11 |
|
| 667-305
| 4 |
Pikesville |
MD |
CLMAMDORAMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2015-10-16 |
|
| 667-305
| 5 |
Pikesville |
MD |
CLMAMDORAMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2015-10-16 |
|
| 667-305
| 6 |
Pikesville |
MD |
CLMAMDORAMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2016-08-22 |
|
| 667-305
| 7 |
Pikesville |
MD |
CLMAMDORAMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2016-08-22 |
|
| 667-305
| 8 |
Pikesville |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2016-07-14 |
|
| 667-305
| 9 |
Pikesville |
MD |
|
515J IP HORIZON LLC |
238 |
|
2016-05-31 |
|
| 667-306
| A |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
| 667-306
| 0 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 1 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 2 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 3 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 4 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 5 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 6 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 7 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 8 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-306
| 9 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2021-05-25 |
|
| 667-307
| A |
Crofton |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
|
|
| 667-307
| 0 |
Crofton |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-06-08 |
|
| 667-307
| 1 |
Crofton |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-06-08 |
|
| 667-307
| 2 |
Crofton |
MD |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
2017-04-26 |
|
| 667-307
| 3 |
Crofton |
MD |
BLTQMD012MD |
964H BARR TELL USA, INC. |
238 |
|
2016-12-17 |
|
| 667-307
| 4 |
Crofton |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2013-11-15 |
|
| 667-307
| 5 |
Crofton |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-06-16 |
|
| 667-307
| 6 |
Crofton |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2024-03-03 |
|
| 667-307
| 7 |
Crofton |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-23 |
|
| 667-307
| 8 |
Crofton |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-23 |
|
| 667-307
| 9 |
Crofton |
MD |
|
515J IP HORIZON LLC |
238 |
|
2016-01-04 |
|
| 667-308
| A |
Towson |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
|
|
| 667-308
| 0 |
Towson |
MD |
CLMAMDORAMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2021-07-20 |
|
| 667-308
| 1 |
Towson |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2023-07-19 |
|
| 667-308
| 2 |
Towson |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2013-07-24 |
|
| 667-308
| 3 |
Towson |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2014-09-01 |
|
| 667-308
| 4 |
Towson |
MD |
BLTMMDCH40Z |
5562 METROPCS, INC. |
238 |
|
2013-08-15 |
|
| 667-308
| 5 |
Towson |
MD |
BLTMMDCH40Z |
5562 METROPCS, INC. |
238 |
|
2013-09-06 |
|
| 667-308
| 6 |
Towson |
MD |
BLTMMDCH40Z |
5562 METROPCS, INC. |
238 |
|
2013-09-06 |
|
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Last updated: Thu, 16 Jul 2026 02:21:55 UTC
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