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Block, identify and report suspicious phone numbers. Unknownphone.com brings you the most complete app to avoid phone scams, unwanted calls and extra charges in your bill. With more than 100.000 telephone numbers registered and identified in our website and a community with millions of users in the United States and around the world, Unknownphone.com has the pleasure to bring you its official app.

- Do you want to know who is calling you? Are you annoyed by unwanted calls? With our app you will be able to block any phone number you want.

(Activate in your iPhone the call block functionality in Settings -> Phone -> Call Blocking & Identification -> CallBlocker)

Search any phone number and check if it has been previously reported in UnknownPhone.com. Share your experience and warn our community.

Are you receiving calls and have no idea who is calling you? Do they refuse to identify themselves? Check the phone number with our application and find out who calls you. Verify the phone owner and block their calls.

- Get the latest and most updated information on telephone scams in the United States. Block suspicious phone numbers before they call you.


Unknownphone.com is the largest community on phone search and the biggest phone spam directory in the United States. With more than 100.000 identified phone numbers in more than 20 countries.

CallBlocker is Unknownphone.com’s official phone block app and you will be able to access all of our services from your iPhone.

Optional subscription to our service

- Unlimited credits. Get information for all numbers you want.
- Automatic detection and block of up to 500 dangerous phone numbers in your country.
- Access without limitations all our records for any phone number.
- No ads.
- Auto-renewing subscription ($1.99 monthly / $4.99 3 months - price varies by country)

CallBlocker respects your right to privacy. Your phonebook will never be public.
Privacy policy: unknownphone.com/privacy-policy
Terms of use: unknownphone.com/terms-of-service

Payment for auto-renewing subscription to CallBlocker will be charged to your iTunes account upon confirmation of purchase. Subscription can be managed and auto-renewal can be turned off by going to the Account Settings on your device. To avoid renewal, you must cancel at least 24 hours before your subscription ends. Your account will be charged for renewal within 24-hours prior to the end of the current period.

What’s New

Version 1.2.9

We keep improving our app in our fight against spam calls, this is what is new in CallBlocker:

• iOS 13 optimized.
• Improved user experience.
• Small bugs fixed.

Enjoy the app!

Ratings and Reviews

4.5 out of 5
689 Ratings

689 Ratings

The reba7 ,

Exceptional App!!!

Love it 😍 This blocks telemarketers, 800 numbers, and my old boyfriend!!! 😁 Not only can you block calls but you can look up numbers - this tells me what's a scam before I answer, then I block their number, and I never get another call from them!

Easy to set-up and within 2 minutes of downloading it was up and running with my contacts. It works fine on the free version, but the protection is way better if you go up in credits. But I really love that credits refresh weekly. You can keep going as a free user and if you don't have a lot of people to block free is probably more than enough.😁 This app is awesome!!

PS: If you have trouble, check your level of protection!! I wish someone told me that after I downloaded this. You may need more protection than your level. I had to update to get what covered my needs. A tiny adjustment to personalize it, and it works like a dream!

Roro$man ,


Every day I'll get calls from unknown numbers, and caller ids named "scam likely" and it was really annoying because I have to work and I don't want to turn my phone off incase a family emergency, so the spam calls always was a bother especially because it was a different number and location each time, but thanks to my mate who recommended me this app, I now barely get any spam calls! Any number i find suspicious i just block it. I even blocked my ex number lol! Definitely give this app a shot!

being~Bex ,


Why I’ve got them crawling out of the woodwork and I put them on my Call Blocker and I just love it by the way everybody’s got a name and a number easiest way to do it as I put down IDIOT calling 1 idiot calling 2 IDIOT calling 3 everybody get a name like this in my phonebook just in case they ever get through. (That’s beyond rare) don’t forget to turn on Call Blocker in your settings this works perfect for me and I have almost 0 calls That I’m not interested in I highly suggest this app.


65.7 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Dutch, French, German, Indonesian, Italian, Japanese, Portuguese, Spanish, Thai

Age Rating
In-App Purchases
  1. One month subscription $1.99
  2. Three months subscription $4.99
  3. 1 week free + 3 months subscr $4.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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