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| npa-nxx | State | Company | FRN | RMD | OCN | Rate Center | CLLI | Assign Date | Misc |
| 937-803 | OH | HORIZON SERVICES, INC. - OH | N/A | 601G | GREENFIELD | GNFDOHBI0MD | 12/10/2012 | Prefix Type: UNKNOWN Switch Name: N/A Switch Type: N/A LATA: N/A Tandem: N/A Detailed Switch Info | |
| 937-868 | OH | TIER 2 COMMUNICATIONS, LLC | N/A | 8168 | GREENFIELD | GNFDOHAB1MD | 10/13/2006 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: N/A Tandem: N/A Detailed Switch Info | |
| 937-876 | OH | T-MOBILE USA, INC. (T-Mobile US, Inc) | N/A | 6529 | GREENFIELD | DYTNOH22XTY | 08/23/2001 | Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: N/A Tandem: N/A Detailed Switch Info | |
| 937-981 | OH | FRONTIER NORTH, INC. - OH (Frontier Communications) | N/A | 0615 | GREENFIELD | GNFDOHXADS0 | 00/00/0000 | Prefix Type: ICO Switch Name: GREENFIELD Switch Type: WECO 5ESS (Digital) LATA: N/A Tandem: WLMGOHXB51T Detailed Switch Info |