npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
573-221 | MO | SOUTHWESTERN BELL | 9533 | HANNIBAL | HNBLMOACDSA | 00/00/0000 | Prefix Type: RBOC Switch Name: HANNIBAL HOST/800 TANDEM Switch Type: Northern Telecom DMS100/200 Digital Host LATA: St.Louis MO (520) Tandem: STLSMO0501T Detailed Switch Info |