npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
918-668 | OK | CENTRAL OKLAHOMA TELEPHONE CO., L.L.C. | 1977 | CASTLE | CSTLOKXARL1 | 00/00/0000 | Prefix Type: ICO Switch Name: CASTLE Switch Type: Northern Telecom DMS10 RLCM LATA: Tulsa OK (538) Tandem: N/A Detailed Switch Info |