Frequent calls from slightly varying numbers scream persistent annoyance, not random chance. This pattern often signals harassment tactics, where callers rotate digits to dodge blocks and keep the pressure on. In telecom security, it's a red flag for everything from aggressive sales pushes to outright stalking. Hang up immediately—never engage or share info. Block the core number and report to your carrier or authorities like the FCC if it escalates. Enable call screening apps for extra protection, and log details like times and any voicemails to build a case. Staying vigilant cuts the chaos.
Frequent calls occur most days, each time with a different set of last four digits.
