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| Raw Number | 443483 |
| Basic Format | 443-483 |
| NPA (Area Code) | 443 |
| NXX | 483 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
|---|---|---|---|---|---|---|---|---|---|
| 443-483-0XXX | 071F | BANDWIDTH.COM CLEC, LLC - MD | CARDIFF | AS | 01/26/2022 | CARDIFF | MD | MA | 02/25/2022 |
| 443-483-1XXX | 568G | PEERLESS NETWORK OF MARYLAND, LLC | CARDIFF | AS | 04/04/2013 | CARDIFF | MD | MA | 05/04/2013 |
| 443-483-2XXX | 568G | PEERLESS NETWORK OF MARYLAND, LLC | CARDIFF | AS | 04/04/2013 | CARDIFF | MD | MA | 05/04/2013 |
| 443-483-3XXX | 071F | BANDWIDTH.COM CLEC, LLC - MD | CARDIFF | AS | 02/06/2019 | CARDIFF | MD | MA | 03/07/2019 |
| 443-483-4XXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | CARDIFF | AS | 01/16/2004 | CARDIFF | MD | MA | 02/07/2004 |
| 443-483-5XXX | 624H | ONVOY SPECTRUM, LLC | CARDIFF | AS | 01/14/2022 | CARDIFF | MD | MA | 02/13/2022 |
| 443-483-6XXX | 071F | BANDWIDTH.COM CLEC, LLC - MD | CARDIFF | AS | 02/06/2019 | CARDIFF | MD | MA | 03/07/2019 |
| 443-483-7XXX | 071F | BANDWIDTH.COM CLEC, LLC - MD | CARDIFF | AS | 02/06/2019 | CARDIFF | MD | MA | 03/07/2019 |
| 443-483-8XXX | 145J | TERRA NOVA TELECOM INC. | CARDIFF | AS | 12/30/2020 | CARDIFF | MD | MA | 01/27/2021 |
| 443-483-9XXX | 624H | ONVOY SPECTRUM, LLC | CARDIFF | AS | 01/14/2022 | CARDIFF | MD | MA | 02/13/2022 |
| 443-483-XXXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | CARDIFF | AS | CARDIFF | MD |
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