npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
309-593 | IL | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL (Frontier Communications) | 1183 | SHERRARD | SHRRILXDDS0 | 00/00/0000 | Prefix Type: ICO Switch Name: SHERRARD Switch Type: Northern Telecom DMS10 Host Switching Office LATA: Davenport IA (634) Tandem: N/A Detailed Switch Info |