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| Raw Number | 307301 |
| Basic Format | 307-301 |
| NPA (Area Code) | 307 |
| NXX | 301 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | State | Region | Block Effective Date |
|---|---|---|---|---|---|---|---|---|
| 307-301-0XXX | 6566 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | CASPER | AS | 12/18/2023 | WY | WE | 12/28/2023 |
| 307-301-1XXX | 515J | IP HORIZON LLC | CASPER | AS | 10/09/2023 | WY | WE | 11/30/2023 |
| 307-301-2XXX | 450F | ONVOY, LLC - WY | CASPER | AS | 01/30/2024 | WY | WE | 02/26/2024 |
| 307-301-3XXX | 450F | ONVOY, LLC - WY | CASPER | AS | 01/30/2024 | WY | WE | 02/26/2024 |
| 307-301-4XXX | 450F | ONVOY, LLC - WY | CASPER | AS | 01/30/2024 | WY | WE | 02/26/2024 |
| 307-301-5XXX | 450F | ONVOY, LLC - WY | CASPER | AS | 04/26/2024 | WY | WE | 05/20/2024 |
| 307-301-6XXX | 6566 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | CASPER | AS | 10/03/2025 | WY | WE | 10/15/2025 |
| 307-301-7XXX | 6529 | T-MOBILE USA, INC. | CASPER | AS | 01/11/2024 | WY | WE | 02/10/2024 |
| 307-301-8XXX | 6010 | NEW CINGULAR WIRELESS PCS, LLC | CASPER | AS | 11/27/2023 | WY | WE | 12/25/2023 |
| 307-301-9XXX | 6529 | T-MOBILE USA, INC. | CASPER | AS | 10/10/2023 | WY | WE | 12/04/2023 |
| 307-301-XXXX | 515J | IP HORIZON LLC | CASPER | AS | 10/09/2023 | WY |
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