Local Calling Guide
Area code/prefix search
Mount Vernon, WA
<< 1 2 3 4 5
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 564-260
| 5 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
674 |
|
2024-12-22 |
|
| 564-260
| 6 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
674 |
|
2024-12-15 |
|
| 564-260
| 7 |
|
5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA |
674 |
|
2025-07-25 |
|
| 564-260
| 8 |
|
5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA |
674 |
|
2025-11-12 |
|
| 564-260
| 9 |
|
6529 T-MOBILE USA, INC. |
674 |
|
2024-11-15 |
|
| 564-900
| A |
MTVRWAXXQMD |
624H ONVOY SPECTRUM, LLC |
674 |
|
|
|
| 564-900
| 0 |
|
5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA |
674 |
|
2022-03-25 |
|
| 564-900
| 1 |
|
5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA |
674 |
|
2023-06-01 |
|
| 564-900
| 2 |
|
5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA |
674 |
|
2023-08-28 |
|
| 564-900
| 3 |
|
6529 T-MOBILE USA, INC. |
674 |
|
2022-03-10 |
|
| 564-900
| 4 |
|
6529 T-MOBILE USA, INC. |
674 |
|
2022-03-10 |
|
| 564-900
| 5 |
|
6529 T-MOBILE USA, INC. |
674 |
|
2022-03-10 |
|
| 564-900
| 6 |
|
6529 T-MOBILE USA, INC. |
674 |
|
2022-03-10 |
|
| 564-900
| 7 |
|
6529 T-MOBILE USA, INC. |
674 |
|
2022-03-10 |
|
| 564-900
| 8 |
|
6529 T-MOBILE USA, INC. |
674 |
|
2022-03-10 |
|
| 564-900
| 9 |
|
624H ONVOY SPECTRUM, LLC |
674 |
|
2022-01-24 |
|
<< 1 2 3 4 5
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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