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| Raw Number | 231403 |
| Basic Format | 231-403 |
| NPA (Area Code) | 231 |
| NXX | 403 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
|---|---|---|---|---|---|---|---|---|---|
| 231-403-0XXX | 543C | ONVOY, LLCV - MI | WILLIAMSBG | AS | 12/11/2012 | WILLIAMSBURG | MI | MW | 01/05/2013 |
| 231-403-1XXX | 991E | BANDWIDTH.COM CLEC, LLC - MI | WILLIAMSBG | AS | 08/05/2014 | WILLIAMSBURG | MI | MW | 09/01/2014 |
| 231-403-2XXX | 543C | ONVOY, LLCV - MI | WILLIAMSBG | AS | 05/04/2012 | WILLIAMSBURG | MI | MW | 06/01/2012 |
| 231-403-3XXX | 543C | ONVOY, LLCV - MI | WILLIAMSBG | AS | 02/20/2013 | WILLIAMSBURG | MI | MW | 03/18/2013 |
| 231-403-4XXX | 543C | ONVOY, LLCV - MI | WILLIAMSBG | AS | 03/15/2016 | WILLIAMSBURG | MI | MW | 04/11/2016 |
| 231-403-5XXX | 829J | PAETEC ITEL, LLC | WILLIAMSBG | AS | 10/15/2013 | WILLIAMSBURG | MI | MW | 11/09/2013 |
| 231-403-6XXX | 543C | ONVOY, LLCV - MI | WILLIAMSBG | AS | 03/15/2016 | WILLIAMSBURG | MI | MW | 04/11/2016 |
| 231-403-7XXX | 516C | AT&T ENTERPRISES, LLC | WILLIAMSBG | AS | 08/17/2011 | WILLIAMSBURG | MI | MW | 10/14/2011 |
| 231-403-8XXX | 508J | CENTURYLINK COMMUNICATIONS, LLC | WILLIAMSBG | AS | 09/01/2017 | WILLIAMSBURG | MI | MW | 10/05/2017 |
| 231-403-9XXX | 933G | PEERLESS NETWORK OF MICHIGAN, LLC - MI | WILLIAMSBG | AS | 12/02/2015 | WILLIAMSBURG | MI | MW | 12/31/2015 |
| 231-403-XXXX | 516C | AT&T ENTERPRISES, LLC | WILLIAMSBG | AS | 08/16/2011 | WILLIAMSBURG | MI |
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