Missouri maintains its own state No-Call list administered by the Attorney General's Office. The No-Call law applies to residential and personal cell phone numbers owned by Missouri residents. Consumer registration is free and numbers remain on the list indefinitely unless removed by the consumer or disconnected. The law also covers SMS and MMS text messages. No state telemarketer registration requirement exists per some compliance sources. Quarterly updates are sent to telemarketers. Exemptions: existing business relationship, not-for-profit groups (member callers), calls with express permission, political and charitable organizations. Permitted hours: 8am-9pm. Penalties: up to $5,000 per violation, injunctions, and potential criminal charges. Complaint line: (866) 662-2551.