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| Raw Number | 443408 |
| Basic Format | 443-408 |
| NPA (Area Code) | 443 |
| NXX | 408 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date | Block Available Date |
|---|---|---|---|---|---|---|---|---|---|---|
| 443-408-0XXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | SPARROWSPT | RT | SPARROWS POINT | MD | MA | |||
| 443-408-1XXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | SPARROWSPT | RT | SPARROWS POINT | MD | MA | |||
| 443-408-2XXX | 6855 | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | SPARROWSPT | AS | 03/22/2023 | SPARROWS POINT | MD | MA | 05/16/2023 | |
| 443-408-3XXX | 145J | TERRA NOVA TELECOM INC. | SPARROWSPT | AS | 05/29/2024 | SPARROWS POINT | MD | MA | 07/16/2024 | |
| 443-408-4XXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | SPARROWSPT | AV | SPARROWS POINT | MD | MA | 07/16/2024 | ||
| 443-408-5XXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | SPARROWSPT | AS | 09/14/2005 | SPARROWS POINT | MD | MA | 10/13/2005 | |
| 443-408-6XXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | SPARROWSPT | AS | 09/14/2005 | SPARROWS POINT | MD | MA | 10/13/2005 | |
| 443-408-7XXX | 508J | CENTURYLINK COMMUNICATIONS, LLC | SPARROWSPT | AS | 05/27/2014 | SPARROWS POINT | MD | MA | 06/25/2014 | |
| 443-408-8XXX | 071F | BANDWIDTH.COM CLEC, LLC - MD | SPARROWSPT | AS | 01/14/2015 | SPARROWS POINT | MD | MA | 02/13/2015 | |
| 443-408-9XXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | SPARROWSPT | RT | SPARROWS POINT | MD | MA | |||
| 443-408-XXXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | SPARROWSPT | AS | SPARROWS POINT | MD |
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