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| Raw Number | 815571 |
| Basic Format | 815-571 |
| NPA (Area Code) | 815 |
| NXX | 571 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date | Block Available Date |
|---|---|---|---|---|---|---|---|---|---|---|
| 815-571-0XXX | 073H | TELNYX LLC | SHANNON | AS | 06/26/2020 | SHANNON | IL | MW | 07/20/2020 | |
| 815-571-1XXX | 495J | STRATUS NETWORKS | SHANNON | AS | 09/15/2020 | SHANNON | IL | MW | 10/14/2020 | |
| 815-571-2XXX | 624H | ONVOY SPECTRUM, LLC | SHANNON | AS | 06/07/2023 | SHANNON | IL | MW | 07/07/2023 | |
| 815-571-3XXX | 846F | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | SHANNON | AV | SHANNON | IL | MW | 07/28/2024 | ||
| 815-571-4XXX | 6115 | LEVEL 3 COMMUNICATIONS, LLC - IL | SHANNON | AS | 03/24/2022 | SHANNON | IL | MW | 04/17/2022 | |
| 815-571-5XXX | 224C | ONVOY, LLC | SHANNON | AS | 08/09/2018 | SHANNON | IL | MW | 10/01/2018 | |
| 815-571-6XXX | 846F | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | SHANNON | AV | SHANNON | IL | MW | 07/28/2024 | ||
| 815-571-7XXX | 224C | ONVOY, LLC | SHANNON | AS | 03/05/2021 | SHANNON | IL | MW | 04/03/2021 | |
| 815-571-8XXX | 846F | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | SHANNON | AV | SHANNON | IL | MW | 07/28/2024 | ||
| 815-571-9XXX | 846F | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | SHANNON | AV | SHANNON | IL | MW | 07/28/2024 | ||
| 815-571-XXXX | 846F | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | SHANNON | AS | 04/21/2006 | SHANNON | IL |
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