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| Raw Number | 531251 |
| Basic Format | 531-251 |
| NPA (Area Code) | 531 |
| NXX | 251 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
|---|---|---|---|---|---|---|---|---|---|
| 531-251-0XXX | 624H | ONVOY SPECTRUM, LLC | DAWSON | AS | 02/08/2024 | DAWSON | NE | WE | 03/08/2024 |
| 531-251-1XXX | 6701 | AERIAL COMMUNICATIONS, INC. | DAWSON | AS | 03/20/2025 | DAWSON | NE | WE | 05/02/2025 |
| 531-251-2XXX | 549E | ONVOY, LLC - NE | DAWSON | AS | 03/08/2019 | DAWSON | NE | WE | 05/04/2019 |
| 531-251-3XXX | 549E | ONVOY, LLC - NE | DAWSON | AS | 03/25/2021 | DAWSON | NE | WE | 04/12/2021 |
| 531-251-4XXX | 549E | ONVOY, LLC - NE | DAWSON | AS | 02/11/2021 | DAWSON | NE | WE | 03/13/2021 |
| 531-251-5XXX | 549E | ONVOY, LLC - NE | DAWSON | AS | 02/11/2021 | DAWSON | NE | WE | 03/13/2021 |
| 531-251-6XXX | 6701 | AERIAL COMMUNICATIONS, INC. | DAWSON | AS | 04/16/2026 | DAWSON | NE | WE | 05/15/2026 |
| 531-251-7XXX | 5562 | METROPCS, INC. | DAWSON | AS | 03/27/2025 | DAWSON | NE | WE | 05/07/2025 |
| 531-251-8XXX | 995E | BANDWIDTH.COM CLEC, LLC - NE | DAWSON | AS | 01/28/2022 | DAWSON | NE | WE | 02/27/2022 |
| 531-251-9XXX | 6534 | NEW CINGULAR WIRELESS PCS, LLC - IL | DAWSON | AS | 05/29/2020 | DAWSON | NE | WE | 06/10/2020 |
| 531-251-XXXX | 549E | ONVOY, LLC - NE | DAWSON | AS | 03/06/2019 | DAWSON | NE |
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