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| Raw Number | 309356 |
| Basic Format | 309-356 |
| NPA (Area Code) | 309 |
| NXX | 356 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
|---|---|---|---|---|---|---|---|---|---|
| 309-356-1XXX | 846F | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | HENRY | AS | 01/21/2010 | HENRY | IL | MW | 03/15/2010 |
| 309-356-3XXX | 224C | ONVOY, LLC | HENRY | AS | 07/03/2018 | HENRY | IL | MW | 08/02/2018 |
| 309-356-4XXX | 224C | ONVOY, LLC | HENRY | AS | 03/06/2021 | HENRY | IL | MW | 04/03/2021 |
| 309-356-5XXX | 145J | TERRA NOVA TELECOM INC. | HENRY | AS | 05/08/2025 | HENRY | IL | MW | 06/06/2025 |
| 309-356-6XXX | 224C | ONVOY, LLC | HENRY | AS | 02/02/2021 | HENRY | IL | MW | 02/12/2021 |
| 309-356-7XXX | 6115 | LEVEL 3 COMMUNICATIONS, LLC - IL | HENRY | AS | 06/29/2016 | HENRY | IL | MW | 08/03/2016 |
| 309-356-8XXX | 495J | STRATUS NETWORKS | HENRY | AS | 07/07/2020 | HENRY | IL | MW | 08/03/2020 |
| 309-356-XXXX | 224C | ONVOY, LLC | HENRY | AS | 10/16/2002 | HENRY | IL |
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