npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
636-532 | MO | SOUTHWESTERN BELL | 9533 | CHESTERFLD | CHFDMO52DSA | 00/00/0000 | Prefix Type: RBOC Switch Name: CHESTERFIELD Switch Type: WECO 5ESS Host (Digital) LATA: St.Louis MO (520) Tandem: STLSMO2101T Detailed Switch Info |