The Tool Desk
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Protecting your number takes two kinds of work: limit where you share it to reduce exposure, and use call-filtering tools to catch some of the unwanted calls that still get through. Registering with the National Do Not Call Registry can reduce covered sales calls, but it does not block calls or stop scammers. No single step guarantees that spam will stop.
Start by limiting where you share your number
Before filling in a phone number field, ask whether the service needs it to provide what you want. If a coupon, sweepstakes, insurance-quote, or warranty-quote site requests your number, look up the site’s name alongside terms such as “complaint,” “review,” or “scam.” The Federal Trade Commission (FTC) warns that some such sites collect and sell information to telemarketers: FTC advice on reducing unwanted calls and mail.
If a number is optional, leave it blank. If you decide to provide it, check the site’s privacy information and how it says it may share your data. Be cautious about consent boxes and terms that authorize marketing calls or data sharing.
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Register for the National Do Not Call Registry
The Registry tells telemarketers who follow the law which numbers not to call. As the FTC puts it, “The Registry is a list that tells registered telemarketers what numbers not to call — it doesn’t block calls.” Registration is free for personal mobile and home numbers. You can register at DoNotCall.gov or call 1-888-382-1222 from the number you want to register.
#1 Best Overall
- COMPATIBILITY: For traditional analog landline phones and services from providers such as AT&T, Verizon, Frontier Communications, CenturyLink, and Brightspeed. Not compatible with internet-based or digital phone services (VoIP), including Vonage, Ooma, Xfinity Voice, and Quantum Fiber.
- IMPORTANT: The V5000 CPR Call Blocker requires Caller ID service and an analog telephone line. Without Caller ID, incoming numbers cannot be identified or blocked. No mains power required - just plug it into your phone line and use.
- Powerful Blocking, Made Simple: Preloaded with 5,000 verified scam and nuisance numbers, the V5000 starts protecting you right out of the box. And if a new or spoofed number gets through, the large “BLOCK NOW” button makes it easy to instantly block it - up to 1,500 additional numbers at your command.
- Realistic & Reliable Protection: While no device can stop 100% of spam (scammers constantly change numbers), the V5000 gives you the power to shut down repeat offenders quickly and effectively - offering more control than passive filters alone.
- Hassle-Free Design: NO POWER supply needed, NO APP, and NO SUBSCRIPTIONS. The V5000 is easy to install, with a clear screen and loud button click for extra confidence. Designed with seniors in mind, it’s ready to use and simple to maintain. For even stronger protection, you can pair it with your phone provider’s spam filtering service.
For online registration, click the confirmation link in the email within 72 hours. Allow up to 31 days for covered sales calls to stop. Registration does not expire unless you ask for removal or the number is disconnected and reassigned. It does not prevent calls from scammers, and it does not cover every type of call.
The FTC reported that more than 4.7 million additional numbers were added in fiscal year 2025, bringing active registrations to about 258.5 million as of September 30, 2025. It also reported more than 2.6 million Do Not Call complaints that fiscal year. Those are historical FTC figures, not a live count: FTC fiscal year 2025 Registry figures.
Rank #2
- How it Works: SPAM identified calls are instantly blocked automatically. Preferred Calls Ring through like normal with Caller ID displayed. Your phones connected to the TEL port Won't Ring on Blocked Calls. Create your own Invited or Allowed Family (White List) and block All other callers. Use the Dual Block Buttons to Block a NAME or NUMBER Displayed. Remote Block a Call when Dialing * 2 # through your telephone handset.
- The Patented ProSeries 3 Call Blocker from Digitone is an Easy Installation and is Simple to Use. No need to rush over and tap a red button when the ProSeries has already blocked a known unwanted SPAM, Out of Area, Private, Anonymous, 800 Service, ROBO?, Dashes, "Quotes" or V123+ call. Use Call History to select Any Caller to Block by (Double Tap) Name or Number. Block any NAME like: Unavailable, Unknown, SCAM RISK, City + State, Potential Scam, Wireless Caller. Block ANY call without answering, as they call in with either RED button.
- Feel confident that the ProSeries already Blocks Millions of Known Unwanted Numbers and Fake Names. No need to change your existing phones or service. Works with Any Analog Corded, Cordless Phone or Fax System on any telephone service. Large Back-Lighted Display. Got questions? Call the number on the front screen of the ProSeries 3.
- Works with all USA phone companies: AT&T, Cox, Spectrum, CenturyLink, Cable Modems, DSL, FIOS, or Digital Services from VoIP Telcos like [V] from Verizon, Ooma Telo, Ooma Basic, Vonage, Magic Jack etc. Also, works in Mexico, Canada, Brazil, European Union (ETSI), Australia, Singapore and others with North American standardized phone lines.
- Allow any blocked caller to ring through like normal with the Green Invite Button. Double Tap the Green Button to add VIP callers shown in Call History. Note: Caller ID Name and Number Service from your phone company is required for this model to work automatically.
Choose call filtering that fits your phone
Filtering can block or silence some unwanted calls, but false positives are possible: a tool may also block a doctor, delivery driver, or other caller you want to hear from. Caller-ID labels are clues, not proof of identity, because callers can spoof phone numbers. Check how a feature handles blocked calls so you can review them if needed.
| Option | Where it helps | Trade-offs to check |
|---|---|---|
| Built-in phone settings | Mobile phones may offer call blocking, silencing, or Do Not Disturb controls. | Settings differ by phone. Review how silenced or blocked calls appear, and whether wanted callers could be affected. |
| Carrier features | Your phone provider may offer call blocking or caller labeling. | Ask what calls the feature filters, how to review blocked calls, and whether a fee applies. Labels do not verify a caller’s identity. |
| Third-party apps | Apps may add caller identification or blocking when built-in and carrier options are not enough. | Check the privacy policy, permissions, and whether the app accesses your contacts. As the FTC cautions, “Some apps access your contacts list, so know whether that’s important to you.” Some options may charge a fee. |
Start with the least disruptive option that meets your needs, then adjust it if it silences calls you want. The FTC outlines options and trade-offs in How To Block Unwanted Calls.
Rank #3
- This is the latest version Telephone Call Blocker with hidden or unavailable call numbers can be blocked. And there is no fees to use it; Please keep the manual for future use.
- Block up to 4000 individual phone numbers, including incoming and outgoing calls , prefixes and up to 10 digit area codes.
- One-touch to Block: Locate a number and then press Block to add it to the blacklist.Better set the call blocker in series ( one end of it connected to your phone and another end to the PSTN telephone line); Though it can also be set up parallel, but not compatible with some phone systems.
- Permanent storage of the numbers in the blacklist even power is off or telephone line is plugged out.
- Battery free: It is line powered, no need battery. And it works with almost all single line telephones. If you find some numbers are blocked but you never mean to, then press Block and check your blacklist, then delete those numbers which like area codes or prefix numbers.
For a landline or VoIP home phone
A call-blocking device can be an option for a home phone if its service and equipment are compatible. It only addresses calls reaching that line; it cannot stop websites from collecting or sharing your number, and it is not a general solution for mobile phones. The FTC includes home-phone blocking devices among the available options: FTC call-blocking guidance.
Opt out of people-search listings
People-search sites publish profiles assembled from public records and other sources, sometimes including phone numbers. Search for your number or other identifying information on these sites, then use each site’s opt-out process. The FTC explains what to expect in What To Know About People Search Sites That Sell Your Information.
Rank #4
- [ IMPORTANT NOTE 1 ] This product is a call blocker only and does not have a telephone or answering machine function. No phone or answering machine is included in the package. Before purchasing, please make sure that your telephone line has Caller ID service and that it is an ANALOG line. the ENF860 requires Caller ID service from your telephone line provider to work and is for analog lines only ! No mains power required, just plug in the phone line to use
- [ IMPORTANT NOTE 2 ] In BLOCK mode, there will STILL BE some new variant numbers bypassing the database making the phone ring, you NEED to manually set up to block them OR switch to FAMILY mode to let only the numbers in FAMILY LIST through. Please refer to the manual for the CORRECT SETTINGS.
- Dual mode;In BLOCK mode you can block callers by Numbers and Names; In FAMILY mode all callers outside the FAMILY LIST are blocked;The two modes can be switched at any time as needed and NO data will be lost after switching modes.
- Preloaded with a large number of spam numbers that have been the subject of repeated complaints ; Users can also manually add 4000+ numbers to the NUMBER LIST to build their own database ; Add 256 NAMES to block calls by name.
- Blocks INTERNATIONAL, PRIVATE/WITHHELD, and Out of Area numbers by default; users can SET to block the entire area code or changing numbers starting with a fixed number, such as 00, 800, 855, 999, 7324, 33626, 134567, etc.
You can submit opt-outs yourself for free, site by site, or consider a paid removal service. Before paying, compare:
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errors- Which people-search sites the service covers.
- Whether it reports which removals have been completed.
- How often it rescans for records that appear or return.
Opt-outs may require details to verify your identity. Removing a listing does not erase the underlying public record, and information may remain in other people’s reports. Listings can also reappear, so removals may need to be repeated.
Best Value
- REDUCE UNWANTED CALLS & TAKE BACK CONTROL – The CPR V100K helps reduce unwanted spam, scam and robocalls on your landline. Known nuisance numbers in the preloaded database are blocked automatically, while new unwanted callers can be blocked at the touch of a button.
- 100,000 KNOWN NUISANCE NUMBERS PRELOADED – Includes a large database of known nuisance numbers for immediate protection. The database contains reported nuisance numbers from across the USA and is not a list of 100,000 numbers specific to your local area.
- BLOCK NEW CALLERS WITH ONE TOUCH – Scam callers frequently change or spoof their phone numbers, so no call blocker can stop every unwanted call automatically. When a new unwanted number gets through, simply press the large red BLOCK NOW button to prevent repeat calls from that number. Store up to 10,000 additional numbers.
- SIMPLE TO USE – NO APP OR SUBSCRIPTION – Connect the V100K to your compatible landline and start taking control of unwanted calls. No app, Wi-Fi, monthly subscription or external power supply required. The large display and tactile BLOCK NOW button make it particularly easy to use.
- IMPORTANT COMPATIBILITY INFORMATION – Requires an active Caller ID service. Designed for compatible traditional analog landline services. Not compatible with many internet-based or digital VoIP telephone services. Please check your telephone service before ordering.
Never share an unexpected verification code
Do not give a verification code to someone who contacts you unexpectedly by phone or text and asks for it—even if they claim to be helping protect your account. The FTC warns that scammers may use such codes to create a Google Voice number linked to a victim’s phone number: FTC advice on Google Voice scams. If you receive a code you did not request, do not share it; check your account through its official app or website instead.
Report persistent unwanted calls and texts
Report illegal calls to the FTC using ReportFraud.ftc.gov. The Federal Communications Commission (FCC) accepts complaints about unwanted calls, texts, and spoofing through its consumer complaint center. The FCC says complaints help inform policy and potential enforcement; it does not resolve each individual complaint.
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