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 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 667-400
| 3 |
Baltimore |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2017-09-17 |
|
| 667-400
| 4 |
Baltimore |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2017-09-17 |
|
| 667-400
| 5 |
Baltimore |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2017-09-17 |
|
| 667-400
| 6 |
Baltimore |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2017-09-17 |
|
| 667-400
| 7 |
Baltimore |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2017-09-17 |
|
| 667-400
| 8 |
Baltimore |
MD |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
2018-11-07 |
|
| 667-400
| 9 |
Baltimore |
MD |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
2018-11-07 |
|
| 667-401
| A |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
| 667-401
| 0 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2014-02-22 |
|
| 667-401
| 1 |
Baltimore |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2013-01-31 |
|
| 667-401
| 2 |
Baltimore |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2013-01-31 |
|
| 667-401
| 3 |
Baltimore |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2013-01-31 |
|
| 667-401
| 4 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2013-01-11 |
|
| 667-401
| 5 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2013-01-11 |
|
| 667-401
| 6 |
Baltimore |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2013-01-31 |
|
| 667-401
| 7 |
Baltimore |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2013-03-16 |
|
| 667-401
| 8 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2013-07-15 |
|
| 667-401
| 9 |
Baltimore |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2014-05-11 |
|
| 667-402
| A |
Baltimore |
MD |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
|
|
| 667-402
| 0 |
Baltimore |
MD |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
2018-11-07 |
|
| 667-402
| 1 |
Baltimore |
MD |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
2017-01-23 |
|
| 667-402
| 2 |
Baltimore |
MD |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
2018-11-07 |
|
| 667-402
| 3 |
Baltimore |
MD |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
2018-11-07 |
|
| 667-402
| 4 |
Baltimore |
MD |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
2018-11-07 |
|
| 667-402
| 5 |
Baltimore |
MD |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
2018-11-07 |
|
| 667-402
| 6 |
Baltimore |
MD |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
2018-11-07 |
|
| 667-402
| 7 |
Baltimore |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2020-09-28 |
|
| 667-402
| 8 |
Baltimore |
MD |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
2018-11-07 |
|
| 667-402
| 9 |
Baltimore |
MD |
BLTMMDCHDMD |
551G NUSO, LLC |
238 |
|
2018-11-07 |
|
| 667-403
| A |
Towson |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
|
|
| 667-403
| 0 |
Towson |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2021-11-01 |
|
| 667-403
| 1 |
Towson |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2021-11-01 |
|
| 667-403
| 2 |
Towson |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-10-31 |
|
| 667-403
| 3 |
Towson |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2021-11-18 |
|
| 667-403
| 4 |
Towson |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2021-11-18 |
|
| 667-403
| 5 |
Towson |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2021-11-18 |
|
| 667-403
| 6 |
Towson |
MD |
BLTQMD013MD |
939H COMMIO, LLC |
238 |
|
2021-11-01 |
|
| 667-403
| 7 |
Towson |
MD |
BLTQMD013MD |
939H COMMIO, LLC |
238 |
|
2021-11-01 |
|
| 667-403
| 8 |
Towson |
MD |
BLTQMD013MD |
939H COMMIO, LLC |
238 |
|
2021-11-01 |
|
| 667-403
| 9 |
Towson |
MD |
BLTQMD013MD |
939H COMMIO, LLC |
238 |
|
2021-11-01 |
|
| 667-404
| A |
Prince Frederick |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
|
|
| 667-404
| 0 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2022-08-07 |
|
| 667-404
| 1 |
Prince Frederick |
MD |
BLTQMD013MD |
939H COMMIO, LLC |
238 |
|
2022-11-24 |
|
| 667-404
| 2 |
Prince Frederick |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2023-03-24 |
|
| 667-404
| 3 |
Prince Frederick |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2023-08-10 |
|
| 667-404
| 4 |
Prince Frederick |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2023-08-10 |
|
| 667-404
| 5 |
Prince Frederick |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2023-08-10 |
|
| 667-404
| 6 |
Prince Frederick |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2023-08-10 |
|
| 667-404
| 7 |
Prince Frederick |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2023-08-10 |
|
| 667-404
| 8 |
Prince Frederick |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2023-09-21 |
|
<< 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 >>
Last updated: Wed, 04 Mar 2026 03:00:52 UTC
Sponsored by: FiberConX Communications Ltd.
Like this site? We accept donations via PayPal.