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| Raw Number | 667399 |
| Basic Format | 667-399 |
| NPA (Area Code) | 667 |
| NXX | 399 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | State | Region | Block Effective Date | Block Available Date |
|---|---|---|---|---|---|---|---|---|---|
| 667-399-0XXX | 876D | ONVOY, LLC - MD | UNION BDG | AS | 05/12/2020 | MD | MA | 06/11/2020 | |
| 667-399-1XXX | 876D | ONVOY, LLC - MD | UNION BDG | AS | 05/12/2020 | MD | MA | 06/11/2020 | |
| 667-399-2XXX | 321J | HD CARRIER LLC | UNION BDG | AV | MD | MA | 06/04/2020 | ||
| 667-399-3XXX | 321J | HD CARRIER LLC | UNION BDG | AV | MD | MA | 12/01/2025 | ||
| 667-399-4XXX | 624H | ONVOY SPECTRUM, LLC | UNION BDG | AS | 04/24/2021 | MD | MA | 05/23/2021 | |
| 667-399-5XXX | 624H | ONVOY SPECTRUM, LLC | UNION BDG | AS | 02/05/2022 | MD | MA | 03/06/2022 | |
| 667-399-6XXX | 073H | TELNYX LLC | UNION BDG | AS | 08/11/2022 | MD | MA | 09/09/2022 | |
| 667-399-7XXX | 624H | ONVOY SPECTRUM, LLC | UNION BDG | AS | 02/05/2022 | MD | MA | 03/06/2022 | |
| 667-399-8XXX | 321J | HD CARRIER LLC | UNION BDG | AS | 04/13/2020 | MD | MA | 06/01/2020 | |
| 667-399-9XXX | 321J | HD CARRIER LLC | UNION BDG | AS | 04/13/2020 | MD | MA | 06/01/2020 | |
| 667-399-XXXX | 321J | HD CARRIER LLC | UNION BDG | AS | 04/10/2020 | MD |
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