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| Raw Number | 920644 |
| Basic Format | 920-644 |
| NPA (Area Code) | 920 |
| NXX | 644 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
|---|---|---|---|---|---|---|---|---|---|
| 920-644-0XXX | 5489 | LEVEL 3 COMMUNICATIONS, LLC - WI | MAYVILLE | AS | 12/19/2005 | MAYVILLE | WI | MW | 01/14/2006 |
| 920-644-1XXX | 073H | TELNYX LLC | MAYVILLE | AS | 04/12/2017 | MAYVILLE | WI | MW | 04/24/2017 |
| 920-644-2XXX | 792K | CHARTER IP ENABLED SERVICES, LLC | MAYVILLE | AS | 03/20/2007 | MAYVILLE | WI | MW | 04/16/2007 |
| 920-644-3XXX | 007F | BANDWIDTH.COM CLEC, LLC - WI | MAYVILLE | AS | 10/23/2008 | MAYVILLE | WI | MW | 11/22/2008 |
| 920-644-4XXX | 5489 | LEVEL 3 COMMUNICATIONS, LLC - WI | MAYVILLE | AS | 06/01/2004 | MAYVILLE | WI | MW | 07/02/2004 |
| 920-644-5XXX | 007F | BANDWIDTH.COM CLEC, LLC - WI | MAYVILLE | AS | 02/03/2010 | MAYVILLE | WI | MW | 03/04/2010 |
| 920-644-6XXX | 829J | PAETEC ITEL, LLC | MAYVILLE | AS | 03/11/2010 | MAYVILLE | WI | MW | 04/08/2010 |
| 920-644-7XXX | 145J | TERRA NOVA TELECOM INC. | MAYVILLE | AS | 07/05/2022 | MAYVILLE | WI | MW | 08/03/2022 |
| 920-644-8XXX | 792K | CHARTER IP ENABLED SERVICES, LLC | MAYVILLE | AS | 12/04/2015 | MAYVILLE | WI | MW | 12/16/2015 |
| 920-644-9XXX | 7216 | TELEPORT COMMUNICATIONS AMERICA, LLC WI | MAYVILLE | RT | MAYVILLE | WI | MW | ||
| 920-644-XXXX | 7216 | TELEPORT COMMUNICATIONS AMERICA, LLC WI | MAYVILLE | AS | 04/15/2002 | MAYVILLE | WI |
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