Call Guardian for US Cellular is a patented technology solution for protecting you from unwanted callers. Leveraging over 25 BILLION monthly call events to identify potentially harmful or annoying spam calls, Call Guardian provides you with incoming call alerts, detailed caller info (name, city/state, call category, and even risk level), and real-time identification of over 200 million verified spammers.

Create personal spam and block lists to customize your experience. Report unwanted numbers to improve our spam detection algorithms. Plus, with Call Guardian's premium service, automatically block spam calls by risk level or call type.


• Call Guardian basic service is available for free for eligible US Cellular customers
• Try Call Guardian Premium for free with a no-obligation free trial
• Get Spam detection and caller identification on your incoming call screen.
• Real-time Spam protection from over 200,000 million verified Spam callers including robo callers, scammers, telemarketers, and unwanted callers.
• Block risky Spam and unwanted callers, and easily manage your Spam and block lists in app.
• Get Spam risk assessment and detailed information on identified Spammers.
• Enjoy your privacy. We anonymize your call data, and we never sell your information.

Terms & Conditions: []

Wi-Fi connectivity is required for live Spam and caller identification on incoming calls for non-LTE devices. Requires data connectivity for all features.

From version Call Guardian 9.9.7 2021-05-14 rd76d2ab617@d76d2ab:

Thanks for using Call Guardian! This update contains performance improvements and bug fixes.

All versions

Version:9.9.7 2021-05-14 rd76d2ab617@d76d2ab

Uploaded:June 27, 2021 at 7:41PM UTC

File size:8.91 MB


Version:9.1.5 2019-02-13 r8366@uscc

Uploaded:June 27, 2021 at 7:39PM UTC

File size:10.68 MB


Version:9.8.0 2020-05-04 rb2cbd84d94@b2cbd84

Uploaded:May 3, 2021 at 4:52AM UTC

File size:11.58 MB