They ring and hang up: why it happens and what to do
You get calls that hang up straight away, sometimes over and over. Find out whether it's a call centre, a check that your line is live or a scam attempt.
Summarize this article with
They ring and hang up: why it happens and what to do
The phone rings once or twice and when you answer there's nobody there, or they hang up straight away. These silent or "ghost" calls are among the most reported: the NoCall community keeps a database of user reports on numbers that behave this way.
1. What's behind these calls
- Autodialler: a telemarketing call centre dials more numbers than it has free agents; if nobody's available, the call drops.
- Line checks: systems that test whether your number answers, so they can call you later or sell the list.
- Wangiri: a deliberate missed call to get you to ring back a premium-rate number.
2. Don't ring back yet
Watch out for foreign numbers. If the missed call is from an international code you don't recognise, don't ring back: the wangiri scam depends on you taking the bait and calling a number that charges by the minute. Ireland's country code is +353, so a call showing any other code after the + is coming from abroad.
3. Check the number on NoCall
Look the number up in the NoCall database. If other users report the same "ring and hang up" pattern, you know it isn't a call worth returning.
4. Block and report
Block the number from your call history and report it on NoCall to warn other users. If the calls keep coming from different numbers, turn on automatic filtering and read our step-by-step guides. If a company keeps making marketing calls to you without your consent, you can complain to the Data Protection Commission.
Why do they ring me and hang up straight away?
Most often it's a telemarketing autodialler with no free agents, or a system checking that your line is live so it can call you later. It can also be the start of a wangiri scam.
Should I ring back if they ring and hang up?
No, especially if the number is foreign or unknown: ringing back is exactly what the wangiri scam wants, because it connects you to a premium-rate number.
How do I stop getting hang-up calls?
Block the number, turn on your phone's spam filter and report the number on NoCall so other users know it's a ghost-call line.
Sources and review
Reviewed:
Numbering, carrier tools, and reporting procedures can change. Verify sensitive steps with the linked primary authority.
Article details
Editorial content reviewed by NoCall with practical context for spotting suspicious calls and messages.
Received a suspicious call?
Look up the number in NoCall before sharing data, calling back, or clicking any link.
Search a phone number or a company name (ESB, Vodafone and Three...) to check if it has been reported as spam.