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| Raw Number | 531223 |
| Basic Format | 531-223 |
| NPA (Area Code) | 531 |
| NXX | 223 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
|---|---|---|---|---|---|---|---|---|---|
| 531-223-0XXX | 073H | TELNYX LLC | HOWELLS | AS | 08/21/2018 | HOWELLS | NE | WE | 08/31/2018 |
| 531-223-1XXX | 478H | AIRUS, INC. - NE | HOWELLS | AS | 04/22/2019 | HOWELLS | NE | WE | 05/16/2019 |
| 531-223-2XXX | 549E | ONVOY, LLC - NE | HOWELLS | AS | 08/19/2019 | HOWELLS | NE | WE | 09/16/2019 |
| 531-223-3XXX | 549E | ONVOY, LLC - NE | HOWELLS | AS | 08/19/2019 | HOWELLS | NE | WE | 09/16/2019 |
| 531-223-4XXX | 549E | ONVOY, LLC - NE | HOWELLS | AS | 05/14/2020 | HOWELLS | NE | WE | 06/15/2020 |
| 531-223-5XXX | 549E | ONVOY, LLC - NE | HOWELLS | AS | 10/21/2020 | HOWELLS | NE | WE | 11/16/2020 |
| 531-223-6XXX | 5562 | METROPCS, INC. | HOWELLS | AS | 03/26/2025 | HOWELLS | NE | WE | 05/06/2025 |
| 531-223-7XXX | 624H | ONVOY SPECTRUM, LLC | HOWELLS | AS | 12/03/2024 | HOWELLS | NE | WE | 01/02/2025 |
| 531-223-8XXX | 549E | ONVOY, LLC - NE | HOWELLS | AS | 02/11/2021 | HOWELLS | NE | WE | 03/13/2021 |
| 531-223-9XXX | 549E | ONVOY, LLC - NE | HOWELLS | AS | 02/11/2021 | HOWELLS | NE | WE | 03/13/2021 |
| 531-223-XXXX | 549E | ONVOY, LLC - NE | HOWELLS | AS | 04/27/2018 | HOWELLS | NE |
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