npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
501-688 | AR | SOUTHWESTERN BELL | 9533 | LITTLEROCK | LTRKARFRDS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: LTRK FRANKLIN-DSO Switch Type: Northern Telecom DMS100 (Digital) Host LATA: Little Rock AR (528) Tandem: LTRKARFR02T Detailed Switch Info |