| npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
| 419-448 | OH | OHIO BELL TEL CO (AT&T) | 9321 | TIFFIN | TFFNOH4444B | 00/00/0000 | Prefix Type: RBOC Switch Name: TIFFIN Switch Type: DMS100 LATA: Toledo OH (326) Tandem: TOLDOH216GT Detailed Switch Info |
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Last Updated: Wed Feb 19 03:57:45 2025