You are reviewing the Area Code (NPA/NXX) report for 443-300. Did you mean to search the SMS short code 443300?
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| Raw Number | 443300 |
| Basic Format | 443-300 |
| NPA (Area Code) | 443 |
| NXX | 300 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date | Block Available Date |
|---|---|---|---|---|---|---|---|---|---|---|
| 443-300-0XXX | 876D | ONVOY, LLC - MD | SYKESVILLE | AS | 06/16/2021 | SYKESVILLE | MD | MA | 07/12/2021 | |
| 443-300-1XXX | 876D | ONVOY, LLC - MD | SYKESVILLE | AS | 03/31/2021 | SYKESVILLE | MD | MA | 04/29/2021 | |
| 443-300-2XXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | SYKESVILLE | RT | SYKESVILLE | MD | MA | |||
| 443-300-3XXX | 7228 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | SYKESVILLE | AS | 09/11/2008 | SYKESVILLE | MD | MA | 10/01/2008 | |
| 443-300-4XXX | 624H | ONVOY SPECTRUM, LLC | SYKESVILLE | AS | 05/27/2021 | SYKESVILLE | MD | MA | 06/26/2021 | |
| 443-300-5XXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | SYKESVILLE | AV | SYKESVILLE | MD | MA | 08/15/2024 | ||
| 443-300-6XXX | 071F | BANDWIDTH.COM CLEC, LLC - MD | SYKESVILLE | AS | 01/26/2010 | SYKESVILLE | MD | MA | 02/25/2010 | |
| 443-300-7XXX | 071F | BANDWIDTH.COM CLEC, LLC - MD | SYKESVILLE | AS | 08/04/2010 | SYKESVILLE | MD | MA | 09/03/2010 | |
| 443-300-8XXX | 071F | BANDWIDTH.COM CLEC, LLC - MD | SYKESVILLE | AS | 09/28/2010 | SYKESVILLE | MD | MA | 10/28/2010 | |
| 443-300-9XXX | 876D | ONVOY, LLC - MD | SYKESVILLE | AS | 06/16/2021 | SYKESVILLE | MD | MA | 07/12/2021 | |
| 443-300-XXXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | SYKESVILLE | AS | SYKESVILLE | MD |
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