Local Calling Guide
Area code/prefix search
NPA: 227
[Rate centres in NPA 227]
[Dial plan for NPA 227]
Block: A
<< 1 2 3 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 227-251
| A |
Washington Zone 10 |
MD |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2024-11-22 |
|
| 227-252
| A |
Myersville |
MD |
MNRVMDMOXFX |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
240 |
|
2024-11-08 |
|
| 227-253
| A |
Frederick |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2024-11-17 |
|
| 227-254
| A |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2024-11-25 |
|
| 227-255
| A |
Washington Zone 5 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2024-12-07 |
|
| 227-256
| A |
Washington Zone 2 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-12-05 |
|
| 227-257
| A |
Washington Zone 14 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-12-05 |
|
| 227-258
| A |
Gaithersburg |
MD |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2024-12-22 |
|
| 227-259
| A |
Laurel |
MD |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2024-12-26 |
|
| 227-260
| A |
Washington Zone 15 (Baltimore LATA) |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2025-01-11 |
|
| 227-261
| A |
Washington Zone 2 |
MD |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-01-11 |
|
| 227-262
| A |
Myersville |
MD |
MNRVMDMOXFX |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
240 |
|
2025-01-16 |
|
| 227-263
| A |
Waldorf |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2025-02-01 |
|
| 227-264
| A |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2025-02-03 |
|
| 227-265
| A |
Washington Zone 3 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-02-06 |
|
| 227-266
| A |
Washington Zone 2 |
MD |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-02-02 |
|
| 227-267
| A |
Myersville |
MD |
MNRVMDMOXFX |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
240 |
|
2025-02-03 |
|
| 227-268
| A |
Laurel |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2025-03-01 |
|
| 227-269
| A |
Washington Zone 5 |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2025-03-01 |
|
| 227-270
| A |
Mount Airy |
MD |
|
7421 AT&T - LOCAL |
240 |
|
2025-03-08 |
|
| 227-271
| A |
Washington Zone 10 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-03-13 |
|
| 227-272
| A |
Oakland |
MD |
|
876D ONVOY, LLC - MD |
240 |
|
2025-03-30 |
|
| 227-273
| A |
Washington Zone 10 |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2025-04-19 |
|
| 227-274
| A |
Washington Zone 10 |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2025-05-10 |
|
| 227-275
| A |
Washington Zone 4 |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2025-06-01 |
|
| 227-276
| A |
Washington Zone 3 |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2025-06-06 |
|
| 227-277
| A |
Gaithersburg |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2025-06-28 |
|
| 227-278
| A |
Waldorf |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2025-06-28 |
|
| 227-279
| A |
Myersville |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
240 |
|
2025-07-04 |
|
| 227-280
| A |
Washington Zone 10 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-07-05 |
|
| 227-281
| A |
Frederick |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
240 |
|
2025-07-28 |
|
| 227-282
| A |
Ashton |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2025-07-25 |
|
| 227-283
| A |
Myersville |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
240 |
|
2025-07-21 |
|
| 227-284
| A |
Laurel |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2025-08-14 |
|
| 227-285
| A |
Myersville |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
240 |
|
2025-08-14 |
|
| 227-286
| A |
Myersville |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
240 |
|
2025-08-14 |
|
| 227-287
| A |
Washington Zone 10 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-09-06 |
|
| 227-288
| A |
Hagerstown |
MD |
|
876D ONVOY, LLC - MD |
240 |
|
2025-10-04 |
|
| 227-289
| A |
Waldorf |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2025-10-11 |
|
| 227-290
| A |
Laurel |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2025-11-15 |
|
| 227-291
| A |
Friendsville |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
240 |
|
2025-09-08 |
|
| 227-292
| A |
Ashton |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2025-08-21 |
|
| 227-293
| A |
Cumberland |
MD |
|
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
240 |
|
2025-09-28 |
|
| 227-294
| A |
Washington Zone 13 |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2025-12-26 |
|
| 227-295
| A |
Hagerstown |
MD |
|
700J WAVENATION, LLC |
240 |
|
2026-01-23 |
|
| 227-296
| A |
Washington Zone 12 |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2026-03-23 |
|
| 227-297
| A |
Laurel |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2026-04-25 |
|
| 227-298
| A |
Washington Zone 10 |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2026-05-01 |
|
| 227-299
| A |
Myersville |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
240 |
|
2026-04-27 |
|
| 227-300
| A |
Ashton |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2025-12-18 |
|
<< 1 2 3 >>
Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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