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 |
| 667-343
| 0 |
Cambridge |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
242 |
|
2021-09-18 |
|
| 667-343
| 1 |
Cambridge |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
242 |
|
2021-09-18 |
|
| 667-343
| 2 |
Cambridge |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
242 |
|
2021-09-18 |
|
| 667-343
| 3 |
Cambridge |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
242 |
|
2021-09-18 |
|
| 667-343
| 4 |
Cambridge |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
242 |
|
2021-09-18 |
|
| 667-343
| 5 |
Cambridge |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
242 |
|
2021-09-18 |
|
| 667-343
| 6 |
Cambridge |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
242 |
|
2021-09-18 |
|
| 667-343
| 7 |
Cambridge |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
242 |
|
2021-09-18 |
|
| 667-343
| 8 |
Cambridge |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
242 |
|
2021-09-18 |
|
| 667-343
| 9 |
Cambridge |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
242 |
|
2021-09-18 |
|
| 667-344
| A |
Chase |
MD |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
|
|
| 667-344
| 0 |
Chase |
MD |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
2017-04-26 |
|
| 667-344
| 1 |
Chase |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-05-02 |
|
| 667-344
| 2 |
Chase |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-05-02 |
|
| 667-344
| 3 |
Chase |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-05-02 |
|
| 667-344
| 4 |
Chase |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-22 |
|
| 667-344
| 5 |
Chase |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-05-02 |
|
| 667-344
| 6 |
Chase |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-03-28 |
|
| 667-344
| 7 |
Chase |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-05-02 |
|
| 667-344
| 8 |
Chase |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2019-01-19 |
|
| 667-344
| 9 |
Chase |
MD |
|
145J TERRA NOVA TELECOM INC. |
238 |
|
2025-07-25 |
|
| 667-345
| A |
Catonsville |
MD |
BLTMMD91GT0 |
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
|
|
| 667-345
| 0 |
Catonsville |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-07-26 |
|
| 667-345
| 1 |
Catonsville |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-07-26 |
|
| 667-345
| 2 |
Catonsville |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2021-11-21 |
|
| 667-345
| 3 |
Catonsville |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2021-07-09 |
|
| 667-345
| 4 |
Catonsville |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2021-07-09 |
|
| 667-345
| 5 |
Catonsville |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-05-21 |
|
| 667-345
| 6 |
Catonsville |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-07-26 |
|
| 667-345
| 7 |
Catonsville |
MD |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2019-11-08 |
|
| 667-345
| 8 |
Catonsville |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-04-29 |
|
| 667-345
| 9 |
Catonsville |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-04-29 |
|
| 667-346
| A |
Salisbury |
MD |
SLBRMDSBY0X |
425J CSC WIRELESS, LLC |
242 |
|
|
|
| 667-346
| 0 |
Salisbury |
MD |
SLBRMDSCXLX |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
242 |
|
2023-06-09 |
|
| 667-346
| 2 |
Salisbury |
MD |
SLBRMDSBY0X |
425J CSC WIRELESS, LLC |
242 |
|
2019-11-29 |
|
| 667-346
| 3 |
Salisbury |
MD |
SLBRMD90BMD |
516J TON80 COMMUNICATIONS, LLC |
242 |
|
2022-03-26 |
|
| 667-346
| 6 |
Salisbury |
MD |
SLBRMDSBX0X |
624H ONVOY SPECTRUM, LLC |
242 |
|
2022-01-27 |
|
| 667-346
| 7 |
Salisbury |
MD |
SLBRMDSBX0X |
624H ONVOY SPECTRUM, LLC |
242 |
|
2022-01-27 |
|
| 667-347
| A |
Federalsburg |
MD |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
|
|
| 667-347
| 0 |
Federalsburg |
MD |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2021-05-18 |
|
| 667-347
| 1 |
Federalsburg |
MD |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2021-05-18 |
|
| 667-347
| 2 |
Federalsburg |
MD |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2021-07-12 |
|
| 667-347
| 3 |
Federalsburg |
MD |
SLBRMDSBX0X |
624H ONVOY SPECTRUM, LLC |
242 |
|
2021-05-27 |
|
| 667-347
| 4 |
Federalsburg |
MD |
SLBRMDSBX0X |
624H ONVOY SPECTRUM, LLC |
242 |
|
2022-03-13 |
|
| 667-347
| 5 |
Federalsburg |
MD |
SLBRMD90BMD |
516J TON80 COMMUNICATIONS, LLC |
242 |
|
2022-03-31 |
|
| 667-347
| 6 |
Federalsburg |
MD |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2021-05-17 |
|
| 667-347
| 7 |
Federalsburg |
MD |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2021-05-21 |
|
| 667-347
| 8 |
Federalsburg |
MD |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2021-05-21 |
|
| 667-347
| 9 |
Federalsburg |
MD |
SLBRMDSBXFX |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
242 |
|
2022-12-19 |
|
| 667-348
| A |
Ridgely |
MD |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
|
|
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Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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