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| Raw Number | 301558 |
| Basic Format | 301-558 |
| NPA (Area Code) | 301 |
| NXX | 558 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
|---|---|---|---|---|---|---|---|---|---|
| 301-558-0XXX | 071F | BANDWIDTH.COM CLEC, LLC - MD | WSNG236Z13 | AS | 04/09/2026 | WASHINGTON 236 ZONE 13 | MD | MA | 05/09/2026 |
| 301-558-1XXX | 071F | BANDWIDTH.COM CLEC, LLC - MD | WSNG236Z13 | AS | 04/09/2026 | WASHINGTON 236 ZONE 13 | MD | MA | 05/09/2026 |
| 301-558-2XXX | 876D | ONVOY, LLC - MD | WSNG236Z13 | AS | 09/04/2025 | WASHINGTON 236 ZONE 13 | MD | MA | 09/28/2025 |
| 301-558-3XXX | 876D | ONVOY, LLC - MD | WSNG236Z13 | AS | 09/04/2025 | WASHINGTON 236 ZONE 13 | MD | MA | 09/28/2025 |
| 301-558-4XXX | 876D | ONVOY, LLC - MD | WSNG236Z13 | AS | 09/04/2025 | WASHINGTON 236 ZONE 13 | MD | MA | 09/28/2025 |
| 301-558-5XXX | 876D | ONVOY, LLC - MD | WSNG236Z13 | AS | 07/22/2025 | WASHINGTON 236 ZONE 13 | MD | MA | 08/29/2025 |
| 301-558-6XXX | 876D | ONVOY, LLC - MD | WSNG236Z13 | AS | 09/04/2025 | WASHINGTON 236 ZONE 13 | MD | MA | 09/28/2025 |
| 301-558-7XXX | 6855 | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | WSNG236Z13 | AS | 08/27/2025 | WASHINGTON 236 ZONE 13 | MD | MA | 09/25/2025 |
| 301-558-8XXX | 876D | ONVOY, LLC - MD | WSNG236Z13 | AS | 07/22/2025 | WASHINGTON 236 ZONE 13 | MD | MA | 08/29/2025 |
| 301-558-9XXX | 6855 | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | WSNG236Z13 | AS | 07/01/2025 | WASHINGTON 236 ZONE 13 | MD | MA | 08/28/2025 |
| 301-558-XXXX | 6855 | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | WSNG236Z13 | AS | 07/01/2025 | WASHINGTON 236 ZONE 13 | MD |
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