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 |
| 227-338
| 4 |
Washington Zone 10 |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-12-23 |
|
| 227-338
| 5 |
Washington Zone 10 |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-12-23 |
|
| 227-338
| 6 |
Washington Zone 10 |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-12-23 |
|
| 227-338
| 7 |
Washington Zone 10 |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-12-23 |
|
| 227-338
| 8 |
Washington Zone 10 |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2025-12-23 |
|
| 227-338
| 9 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2025-12-04 |
|
| 227-368
| A |
Mechanicsville |
MD |
WASHDCSWFMD |
530H WIDE VOICE, LLC - MD |
236 |
|
|
|
| 227-368
| 0 |
Mechanicsville |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-03-07 |
|
| 227-368
| 1 |
Mechanicsville |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-12 |
|
| 227-368
| 6 |
Mechanicsville |
MD |
WASHDCSWFMD |
530H WIDE VOICE, LLC - MD |
236 |
|
2023-10-21 |
|
| 227-368
| 8 |
Mechanicsville |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2026-10-08 |
|
| 227-444
| A |
Washington Zone 2 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-444
| 0 |
Washington Zone 2 |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-02-26 |
|
| 227-444
| 1 |
Washington Zone 2 |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-02-26 |
|
| 227-444
| 2 |
Washington Zone 2 |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-02-26 |
|
| 227-444
| 3 |
Washington Zone 2 |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-02-26 |
|
| 227-444
| 4 |
Washington Zone 2 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-444
| 5 |
Washington Zone 2 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-444
| 6 |
Washington Zone 2 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-444
| 7 |
Washington Zone 2 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-444
| 8 |
Washington Zone 2 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-19 |
|
| 227-444
| 9 |
Washington Zone 2 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2025-10-19 |
|
| 227-500
| A |
Gaithersburg |
MD |
WASHDC12X6X |
824J OPENTACT INC. |
236 |
|
2026-05-09 |
|
| 227-500
| 0 |
Gaithersburg |
MD |
WASHDC12X6X |
824J OPENTACT INC. |
236 |
|
2026-05-09 |
|
| 227-500
| 1 |
Gaithersburg |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2026-05-11 |
|
| 227-500
| 2 |
Gaithersburg |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2026-08-20 |
|
| 227-500
| 3 |
Gaithersburg |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2026-08-20 |
|
| 227-500
| 4 |
Gaithersburg |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2026-08-20 |
|
| 227-500
| 5 |
Gaithersburg |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2026-08-20 |
|
| 227-500
| 6 |
Gaithersburg |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2026-08-31 |
|
| 227-500
| 7 |
Gaithersburg |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-09-06 |
|
| 227-500
| 8 |
Gaithersburg |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2026-07-07 |
|
| 227-500
| 9 |
Gaithersburg |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2026-05-30 |
|
| 227-529
| A |
Gaithersburg |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2026-02-20 |
|
| 227-529
| 0 |
Gaithersburg |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2026-02-20 |
|
| 227-529
| 1 |
Gaithersburg |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2026-02-27 |
|
| 227-529
| 2 |
Gaithersburg |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2026-09-28 |
|
| 227-529
| 3 |
Gaithersburg |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2026-09-28 |
|
| 227-529
| 4 |
Gaithersburg |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2026-10-17 |
|
| 227-529
| 5 |
Gaithersburg |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2026-03-07 |
|
| 227-529
| 6 |
Gaithersburg |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2026-05-02 |
|
| 227-529
| 7 |
Gaithersburg |
MD |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-04-20 |
|
| 227-529
| 8 |
Gaithersburg |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2026-04-11 |
|
| 227-529
| 9 |
Gaithersburg |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2026-02-20 |
|
| 227-666
| A |
Frederick |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2026-02-17 |
|
| 227-666
| 0 |
Frederick |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2026-02-17 |
|
| 227-666
| 1 |
Frederick |
MD |
HGTWMDHGDMD |
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2026-06-06 |
|
| 227-666
| 2 |
Frederick |
MD |
|
876D ONVOY, LLC - MD |
240 |
|
2026-09-05 |
|
| 227-666
| 3 |
Frederick |
MD |
|
876D ONVOY, LLC - MD |
240 |
|
2026-09-05 |
|
| 227-666
| 4 |
Frederick |
MD |
|
876D ONVOY, LLC - MD |
240 |
|
2026-09-05 |
|
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Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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