How it works
One short prefix. Thousands of numbers blocked.
Spam campaigns dial from blocks of consecutive numbers that share the same opening digits. Block the prefix once and Prefixly handles the rest.
Pick a country
Choose from every country — Prefixly defaults to your device’s region and fills in the dialing code automatically.
Enter a prefix
Type a full number to block one caller, or fewer digits to block every number that starts with them. You see the exact count before you add it.
Apply & relax
Prefixly registers the range with iOS. Matching calls are silenced automatically and labelled on your screen.
Privacy by design
Your block list never leaves your iPhone.
Prefixly has no accounts, no servers, no analytics, and no advertising. The numbers you block are stored only on your device and shared solely with the on-device call-blocking extension.