npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
586-274 | MI | MICHIGAN BELL TEL CO (AT&T) | 9323 | WARREN | WRRNMIMNDS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: WARREN Switch Type: DMS100 LATA: Detroit MI (340) Tandem: WBFDMIMN20T Detailed Switch Info |