Local Calling Guide
Area code/prefix search
NPA: 307
[Rate centres in NPA 307]
[Dial plan for NPA 307]
NXX: 533
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 307-533
| A |
Sheridan |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
|
|
| 307-533
| 0 |
Sheridan |
WY |
|
6529 T-MOBILE USA, INC. |
654 |
|
2026-01-14 |
|
| 307-533
| 1 |
Sheridan |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2024-04-26 |
|
| 307-533
| 2 |
Sheridan |
WY |
CSPRWYMAXEX |
6529 T-MOBILE USA, INC. |
654 |
|
2024-05-18 |
|
| 307-533
| 3 |
Sheridan |
WY |
|
6529 T-MOBILE USA, INC. |
654 |
|
2025-11-23 |
|
| 307-533
| 4 |
Sheridan |
WY |
CSPRWYMAXEX |
6529 T-MOBILE USA, INC. |
654 |
|
2023-09-13 |
|
| 307-533
| 5 |
Sheridan |
WY |
CSPRWYMAXEX |
6529 T-MOBILE USA, INC. |
654 |
|
2024-07-12 |
|
| 307-533
| 6 |
Sheridan |
WY |
CSPRWYMAXEX |
6529 T-MOBILE USA, INC. |
654 |
|
2023-12-26 |
|
| 307-533
| 7 |
Sheridan |
WY |
CSPRWYMAXEX |
6529 T-MOBILE USA, INC. |
654 |
|
2023-12-26 |
|
| 307-533
| 8 |
Sheridan |
WY |
CHYNWYRF2MD |
939H COMMIO, LLC |
654 |
|
2022-09-10 |
|
| 307-533
| 9 |
Sheridan |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2023-07-23 |
|
Last updated: Sun, 07 Dec 2025 22:02:11 UTC
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