Stop Cold Calls to your Mobile

Nuisance calls are an unwanted interruption to our daily lives. They can also cause anxiety and distress and lead on to the serious financial consequences of the criminal activity frequently linked to these calls.

IPS will update you on ways you can reduce and stop nuisance calls to your mobile.

Protect your friends by sharing this article with them:

TPS Registration

IPS members are automatically registered with the Telephone Preference Service (TPS), the UK’s official “Do Not Call” register which makes it illegal for unsolicited cold callers to contact you – with fines of up to £500,000 for organisations that do not comply.  This service is available to both landline and mobile phone numbers.  Unfortunately, this doesn’t stop nuisance or scam calls.

Block individual numbers

Block individual numbers one by one 

To block specific numbers on an iPhone, go inside the phone calling app and tap Recents. Tap the Info icon next to the number you want to block. Tap Block this Caller > Block Contact. The number is now blocked.

To block specific numbers on an Android phone will vary depending on the type of device and operating system. You should be able to open the phone calling app and select from recent calls. Tap the number you want to block and find the command that says block and/or report as spam. You will then have to confirm the message asking if you want to block the number.

Use do not disturb

Use 'Do Not Disturb' to only allow calls from your contacts 

On both iOS and Android you can select ‘Do Not Disturb’ mode to only allow phone calls from people or businesses in your contact list. Unknown callers will go through to voicemail, and then you can add that number to your contacts for the future – or Block them.  For more details information, click here.

Use your mobile to protect you

Use your mobile to protect you

Many Android phones, including Samsung and Google, have built in options for flagging suspected spam calls. If you have a Google Pixel device, the entire screen will turn red when a potential spammer rings you, which is an easy way of knowing which calls to ignore.

iOS also has its own in-app feature called ‘Silence Unknown Callers’, which blocks any callers that are not in your contact list, and haven’t been in contact with you before. These calls will go straight to voicemail. You can enable this setting by selecting Settings> Phone > Silence Unknown Callers.

Don't automatically reply

Don't automatically reply to marketing texts

If a message is from a company you trust or from a five-digit number then replying ‘STOP’ should do the job and you shouldn’t be charged. However, if it’s from anyone else it is probably best to ignore it completely; replying will just confirm your number is a valid one and you may start receiving a lot more communications from them. Instead, report the message to your network operator by forwarding the message to 7726.

Report cold-calling offenders

Report cold-calling offenders

It’s important to report nuisance calls so that the offenders are identified and punished – and are then unable to bother other IPS members. You can learn more by visiting the Information Commissioners Office. If you are getting calls where there is no one there (silent or abandoned calls) you should report them to Ofcom. If you think the call sounds like a scam, it should be reported to Citizens Advice and Action Fraud straightaway.

The members of the IPS Facebook Community would also love to hear about it!

Services to help stop cold calls to your mobile


Hiya Call Block Security identifies the calls you want to take and blocks the numbers and texts you want to avoid.

The app can be downloaded on Google Play or the App Store to block nuisance calls, blacklist unwanted phone numbers and SMS text messages, reverse phone search incoming call information and receive nuisance call alerts.


Truecaller is a smartphone app that has features of caller-identification, call-blocking, flash-messaging, call-recording, Chat & Voice by using the internet, available for Android and iOS.

Have your say

As an IPS member, you can leave us your thoughts, comments and experiences in the commments section below

18 Responses

  1. derek-sullivan321 says:

    Thank you for inviting me aboard this highly recommended, fantastic service, wish i had known about it before, but as they say its better late than never.

  2. les-mangan49 says:

    Sounds to good to be true

  3. GORDON SMITH says:

    As a well seasoned pensioner with my faculties still intact, and lots of spare time, I usually answer the calls and play along. None of the information I give is true, but I can usually take up 15 to 20 minutes of their time, meaning that saves a lot of other people getting calls. I can’t go out, so I will sit at home and enjoy myself, Pinocchio

  4. janet1905 says:

    Like Janet Daley, I do not have an I-phone. How can I block unknown scam calls on my LG phone.

  5. Stemac says:

    My wife recently received an email purporting to be from someone who had placed a Trojan horse on her laptop saying they could see which sites she had visited – including recording her when she visited porn sites – which she doesn’t do and found the suggestion abhorrent. We recognised it as “phishing” attempt so I tried to forward the email to Action Fraud but it kept rejecting it as a phishing email!! She has since deleted it but I thought it worth letting you know that I had trouble with reporting it.

    • IPS says:

      I am sorry to hear that you had trouble reporting this phishing email. This issue has been reported to us by other members too. Should you need to report anything in the future, use action Fraud’s reporting process rather than forwarding the email – or you can try phoning them – 0300 123 2040.

      Kind regards

      The IPS Team

  6. Tina Wright says:

    Since i signed up for this i am getting more nuisance calls than ever both on mobile and land line! Don’t know who from as they are never on the phone long enough to find out but it’s still so annoying! I’m working from home so can’t even ignore unknown numbers as i did before in case it’s a work call!

  7. janet dalby says:

    i do not have a smart phone, only a normal mobile, and i am fed up of a cold caller who speaks in chinese at me, i do not know who it is, but it is very annoying and i have no way to stop them.

    • IPS says:

      Hi Janet,

      Thank you for your message. Would you be able to provide us details with the make of your phone so we can dig a little deeper and try and find a way to stop these nuisance calls for you?

      Regards, IPS

  8. Andrew Dyson says:

    How does one block unknown callers without blocking those who withhold phone numbers e.g. the hospital where I work?

    • Charlie Shakeshaft says:

      Hi Andrew,

      Thank you for your message. Unfortunately because the companies are withholding their numbers, it is impossible to block some, and not others as we don’t know who are the ‘good’ guys. However, throughout the pandemic, hospitals are now sending a text if they cannot get through to you, to let you know they have called. Therefore, we would advice you to ‘Block strangers’ or ‘Silence unknown callers’, the call will go straight to voicemail, but the hospital should leave a text to let you know they have called.

      Please do not hesitate to contact us at if you need any further information.

      Regards, IPS

  9. nathan jarvis says:

    Hi am a IPS member and am still getting a lot of nuisance calls can you help stop them

    • Charlie Shakeshaft says:

      Hi Nathan,

      Sorry to hear that you are still receiving nuisance calls. Would you be able to provide us with a little extra information about the types of calls you are receiving? If you believe they are scam calls they should be reported to Action Fraud here:

      It looks like your mobile number is registered with us, we would suggest downloading a call blocking app. There are many out there but we would recommend ‘Hiya’ or ‘Mr Number’ as they are both highly rated.

      If you need any extra information, please do not hesitate to get in contact with us again. You can email us at

      Regards, IPS

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