Ringless Voicemail in Colorado

Ringless voicemail lets you deliver a message straight to a voicemail inbox in Colorado without the recipient's phone ringing. Like any outreach channel, it operates inside a framework of federal and Colorado rules - primarily the federal TCPA, the National Do-Not-Call Registry, and Colorado's own telemarketing law.

Colorado's No-Call List is unusual in being run by the state Public Utilities Commission, and consumer sign-ups are permanent - numbers stay on the list until removed or disconnected. This guide summarizes how those rules apply to voicemail drops in Colorado. It is general information, not legal advice - confirm your specific campaigns with a Colorado-licensed attorney.

Federal TCPA. The Telephone Consumer Protection Act is the primary law governing ringless voicemail in Colorado, as it is nationwide. It restricts automated and prerecorded marketing messages without prior express written consent and established the National Do-Not-Call Registry. Federal courts have applied the TCPA to ringless voicemail, so the prudent approach is to treat voicemail drops as covered "calls."

Colorado law. Colorado No-Call List Act (C.R.S. § 6-1-901 et seq.) and the Prevention of Telemarketing Fraud Act (§ 6-1-301 et seq.) - it is unlawful to solicit a subscriber on the Colorado No-Call List, with quarterly list scrubbing required; enforcement is by the Attorney General and district attorneys (penalties up to $20,000 per violation) rather than a private right of action. It is enforced primarily by state regulators rather than through a broad consumer private right of action.

Do-Not-Call. In addition to the federal National DNC Registry, Colorado maintains the Colorado No-Call List (administered by the Colorado Public Utilities Commission). Scrub your contacts against both before every campaign to Colorado numbers.

Registration. Commercial telephone sellers must register with the Colorado Attorney General, and anyone making solicitations must subscribe annually to the Colorado No-Call List.

Get consent first. Obtain and document prior express written consent before sending marketing ringless voicemails to Colorado consumers, and keep a record of when and how each contact opted in.

Scrub both lists. Check every contact list against the National DNC Registry and the Colorado No-Call List (administered by the Colorado Public Utilities Commission), and honor opt-out requests immediately and permanently.

Respect calling hours. The TCPA limits delivery to 8 a.m.–9 p.m. in the recipient's local time. VoiceDrop schedules Mountain Time sends inside that window automatically.

Identify yourself and keep records. Name your business and provide a callback path in every message, and retain audit records of consent, message content, and delivery for each Colorado campaign.

This page is for general informational purposes only and is not legal advice. Laws governing ringless voicemail, automated calls, and telemarketing are complex, vary by jurisdiction, and change frequently. VoiceDrop is not a law firm. Always consult a qualified attorney before running campaigns.

Compare the rules in other states on our ringless voicemail laws by state hub. For the federal framework, see our TCPA compliance guide, and for general legal background read Are Ringless Voicemails Legal?. To see VoiceDrop's compliance toolkit in action, start a free trial.