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| Raw Number | 331284 |
| Basic Format | 331-284 |
| NPA (Area Code) | 331 |
| NXX | 284 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | State | Region | Block Effective Date | Block Available Date |
|---|---|---|---|---|---|---|---|---|---|
| 331-284-0XXX | 984E | BANDWIDTH.COM CLEC, LLC - IL | BARTLETT | AS | 09/01/2022 | IL | MW | 10/01/2022 | |
| 331-284-1XXX | 490J | BOOST SUBSCRIBERCO L.L.C. | BARTLETT | AS | 04/25/2023 | IL | MW | 05/25/2023 | |
| 331-284-2XXX | 490J | BOOST SUBSCRIBERCO L.L.C. | BARTLETT | AS | 07/24/2025 | IL | MW | 08/23/2025 | |
| 331-284-3XXX | 224C | ONVOY, LLC | BARTLETT | AS | 07/14/2023 | IL | MW | 08/12/2023 | |
| 331-284-4XXX | 224C | ONVOY, LLC | BARTLETT | AS | 07/14/2023 | IL | MW | 08/12/2023 | |
| 331-284-5XXX | 224C | ONVOY, LLC | BARTLETT | AS | 07/14/2023 | IL | MW | 08/12/2023 | |
| 331-284-6XXX | 224C | ONVOY, LLC | BARTLETT | AS | 07/14/2023 | IL | MW | 08/12/2023 | |
| 331-284-7XXX | 224C | ONVOY, LLC | BARTLETT | AS | 07/14/2023 | IL | MW | 08/12/2023 | |
| 331-284-8XXX | 6529 | T-MOBILE USA, INC. | BARTLETT | AF | IL | MW | 04/21/2026 | ||
| 331-284-9XXX | 6529 | T-MOBILE USA, INC. | BARTLETT | AS | 03/11/2022 | IL | MW | 05/02/2022 | |
| 331-284-XXXX | 6529 | T-MOBILE USA, INC. | BARTLETT | AS | 03/11/2022 | IL |
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