Yes, you can register your cell phone on the National Do Not Call Registry. The **FCC** and **FTC** enforce this free service; registration is permanent and blocks most telemarketing calls. Expect a reduction in legal sales calls within 31 days of registering.
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Compare Plans →Free to compare · No credit check to browse · Affiliate-supportedWhat Is the Do Not Call Registry?
The National Do Not Call Registry is a free, government-operated list managed by the Federal Trade Commission (FTC) and enforced by the Federal Communications Commission (FCC). It was created to give consumers control over unwanted telemarketing calls. As of 2025, over 256 million phone numbers are registered. Importantly, both landlines and cell phones can be added. The service is permanent — once you register, your number never expires, even if you change carriers or move. Telemarketers are legally required to scrub their call lists against the Registry every 31 days. If they call a registered number after that period, they may face fines of up to $1,500 per illegal call under the Telephone Consumer Protection Act (TCPA).
How to Register Your Cell Phone
Registering a cell phone takes less than two minutes. You have two options:
- Online: Visit the official FTC website at DoNotCall.gov. Enter up to three phone numbers at once, along with your email address for confirmation. You will receive a verification email; click the link to complete registration.
- By phone: Call 1-888-382-1222 from the number you want to register. TTY users can call 1-866-290-4236. The call is free.
After registering, telemarketers have 31 days to stop calling. If you receive a sales call after that window, it is likely a violation. Note that the Registry does not block political calls, charities, surveys, or calls from companies you have done business with in the past 18 months — though you can ask those companies to stop calling individually.
| Registration Method | Time Required | What You Need |
|---|---|---|
| Online (DoNotCall.gov) | 1–2 minutes | Phone number, email |
| Phone (1-888-382-1222) | 2–3 minutes | Phone number (call from that line) |
What the Registry Covers — and What It Does Not
The Do Not Call Registry applies to telemarketing calls from sellers and third-party telemarketers. It does not block:
- Political calls or campaign solicitations
- Charitable organizations requesting donations
- Surveys and opinion polls
- Calls from companies you have an existing business relationship with (e.g., your current wireless provider) — up to 18 months after your last purchase or payment
- Illegal robocalls (scammers often ignore the Registry entirely)
Because scammers and illegal robocallers routinely ignore the law, the Registry alone is not a complete solution. The FCC reports that in 2024, Americans received an estimated 50 billion robocalls, with about 40% from illegal sources. That is why additional blocking tools are essential.
Additional Tools to Stop Spam Calls
For cell phones, the most effective defense combines the Do Not Call Registry with built-in or third-party call-blocking features. As of 2026, nearly all new smartphones include free spam detection and blocking tools. These features use crowd-sourced databases and STIR/SHAKEN caller ID authentication to flag or silence suspected spam. Steps you can take:
- Enable built-in spam blocking: Check your phone’s Phone or Call settings for a “Block unknown callers” or “Filter spam calls” toggle. This automatically silences numbers not in your contacts.
- Use carrier-provided tools: Major national carriers offer free spam-blocking apps or services (e.g., Call Filter, Scam Shield, Call Protect). These are typically included with your plan at no extra charge.
- Report violations: If you receive a telemarketing call after being registered for 31 days, file a complaint at DoNotCall.gov or call 1-888-382-1222. The FTC uses these reports to pursue enforcement actions.
According to the FTC, consumers who combine registration with active blocking report up to 80% fewer unwanted calls.
Legal Protections and Penalties
The Telephone Consumer Protection Act (TCPA) of 1991 is the primary federal law governing telemarketing calls. It was updated in 2012 to explicitly cover cell phones and prerecorded calls. Key protections include:
- Prior written consent required for autodialed or prerecorded calls to cell phones.
- No calls before 8 a.m. or after 9 p.m. local time.
- Penalties of $500 to $1,500 per violation — consumers can sue violators in small claims court or join class-action lawsuits.
In 2023, the FCC also mandated STIR/SHAKEN caller ID authentication for all major voice service providers, making it harder for scammers to spoof numbers. The agency has levied fines exceeding $200 million against illegal robocallers in recent years. If you believe your rights have been violated, you can file a complaint with the FCC at fcc.gov/complaints or the FTC at ReportFraud.ftc.gov.