Local Calling Guide
Area code/prefix search
NPA: 227
[Rate centres in NPA 227]
[Dial plan for NPA 227]
<< 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 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 227-320
| 2 |
Laurel |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2026-11-02 |
|
| 227-320
| 3 |
Laurel |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2026-11-02 |
|
| 227-320
| 4 |
Laurel |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2026-11-02 |
|
| 227-320
| 5 |
Laurel |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2026-11-02 |
|
| 227-320
| 6 |
Laurel |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2026-11-02 |
|
| 227-320
| 7 |
Laurel |
MD |
|
820C INTRADO COMMUNICATIONS, LLC |
236 |
|
2026-11-02 |
|
| 227-320
| 8 |
Laurel |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-10-30 |
|
| 227-320
| 9 |
Laurel |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-10-30 |
|
| 227-321
| A |
Washington Zone 4 |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2026-10-26 |
|
| 227-321
| 0 |
Washington Zone 4 |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2026-10-26 |
|
| 227-321
| 1 |
Washington Zone 4 |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2026-11-08 |
|
| 227-321
| 7 |
Washington Zone 4 |
MD |
|
820C INTRADO COMMUNICATIONS, LLC |
236 |
|
2026-10-27 |
|
| 227-322
| A |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-322
| 0 |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-322
| 1 |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-322
| 2 |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-322
| 3 |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-322
| 4 |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-322
| 5 |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-322
| 6 |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-322
| 7 |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-322
| 8 |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-322
| 9 |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-323
| A |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-323
| 7 |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-323
| 8 |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-323
| 9 |
Washington Zone 2 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-20 |
|
| 227-324
| A |
Gaithersburg |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-27 |
|
| 227-324
| 9 |
Gaithersburg |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-11-27 |
|
| 227-333
| A |
Washington Zone 16 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-333
| 0 |
Washington Zone 16 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-17 |
|
| 227-333
| 1 |
Washington Zone 16 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2026-05-08 |
|
| 227-333
| 2 |
Washington Zone 16 |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2026-09-27 |
|
| 227-333
| 3 |
Washington Zone 16 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-333
| 4 |
Washington Zone 16 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-333
| 5 |
Washington Zone 16 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-333
| 6 |
Washington Zone 16 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-333
| 7 |
Washington Zone 16 |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2026-09-28 |
|
| 227-333
| 8 |
Washington Zone 16 |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2026-09-28 |
|
| 227-333
| 9 |
Washington Zone 16 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2026-06-07 |
|
| 227-334
| A |
Keedysville |
MD |
FRDRMDFRX2Y |
7421 AT&T - LOCAL |
240 |
|
2024-12-23 |
|
| 227-334
| 0 |
Keedysville |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2025-10-12 |
|
| 227-334
| 1 |
Keedysville |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2026-06-22 |
|
| 227-334
| 4 |
Keedysville |
MD |
|
145J TERRA NOVA TELECOM INC. |
240 |
|
2025-02-13 |
|
| 227-334
| 9 |
Keedysville |
MD |
FRDRMDFRX2Y |
7421 AT&T - LOCAL |
240 |
|
2024-12-23 |
|
| 227-338
| A |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2025-12-04 |
|
| 227-338
| 0 |
Washington Zone 10 |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-12-23 |
|
| 227-338
| 1 |
Washington Zone 10 |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-12-23 |
|
| 227-338
| 2 |
Washington Zone 10 |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-12-23 |
|
| 227-338
| 3 |
Washington Zone 10 |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-12-23 |
|
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Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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