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| npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
| 319-336 | IA | MCC TELEPHONY OF IOWA, LLC - IA | 751F | HILLS | NLBTIAXO2MD | 11/14/2006 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Cedar Rapids IA (635) Tandem: N/A Detailed Switch Info |
| Thousands block for 319-336 | |||||||
| 319-336-6 | IA | TON80 COMMUNICATIONS, LLC | 516J | HILLS | NOCLLIKNOWN | 03/04/2022 | Prefix Type: UNKNOWN Switch Name: N/A Switch Type: N/A LATA: Cedar Rapids IA (635) Tandem: N/A Detailed Switch Info |
| 319-336-8 | IA | FRACTEL, LLC | 965H | HILLS | NOCLLIKNOWN | 02/10/2020 | Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: Cedar Rapids IA (635) Tandem: N/A Detailed Switch Info |
| 319-336-9 | IA | MCC TELEPHONY OF IOWA, LLC - IA | 751F | HILLS | NLBTIAXO2MD | 03/15/2010 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Cedar Rapids IA (635) Tandem: N/A Detailed Switch Info |
| 319-679 | IA | SHARON TEL. CO. | 1293 | HILLS | HILSIAXODS0 | 00/00/0000 | Prefix Type: ICO Switch Name: HILLS Switch Type: Stromberg Carlson DCO Digital LATA: Cedar Rapids IA (635) Tandem: N/A Detailed Switch Info |