npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
248-258 | MI | MICHIGAN BELL TEL CO (AT&T) | 9323 | BIRMINGHAM | BRHMMIMNDS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: BIRMINGHAM DS0 Switch Type: EWSD LATA: Detroit MI (340) Tandem: TROYMIMN55T Detailed Switch Info |