Yes and no. The number that called you ten times last week may well stop. The people behind it rarely do. Understanding the difference explains why blocking one number feels satisfying and changes almost nothing.

Why a single number goes quiet

  • Scam numbers are disposable. Once a number gets reported and blocked by networks, it stops being useful, so operations move to fresh numbers.
  • Diallers work through lists. Systems often retry unanswered numbers a few times and then move on to the next batch.
  • Campaigns end. A burst of calls about one product or one scam story typically lasts days or weeks.

Why the calls keep coming anyway

Lists are bought, sold and reused. A number that answered in the past, or appeared in a data breach, keeps its value. So a new campaign starts, a new number rings, and it feels as though the same people never gave up. In a sense they didn't - they just changed the number on the screen.

What actually makes them stop

  1. Don't answer unknown numbers for a while. Numbers that never pick up drop down the priority list for many diallers.
  2. Never press keys to "opt out" on recorded calls. It confirms the line is active.
  3. Register with the TPS. It removes legitimate UK sales callers, who are a large share of repeated calls.
  4. Use call filtering. Silence Unknown Callers on iPhone, spam protection on Android, or Call Protect on a BT landline (1572).
  5. Report numbers to 7726. Networks act on patterns, and blocking a campaign helps everyone on the network.

Our take on waiting it out

Waiting works only in the narrow sense that one campaign ends. Changing a few habits works far better, and changing your number is a last resort: a new number can be recycled and come with someone else's spam. If you're getting several calls a day, the plan in how to stop getting 20 spam calls a day is a faster route.

One exception: if the calls are personal, threatening or clearly aimed at you rather than at a list, they won't simply fade. Keep a log and speak to your provider and the police. For silent or hang-up calls specifically, read what it means when a number calls you then hangs up.