Mobile Phone Number Trace UK

We boast over 20 years of experience in intelligence gathering for clients all over the world.



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Extensive background investigations conducted globally. 

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Need to find someone?

We specialise in tracing people. Reach out to us today.

Trace a UK Phone Number

If you have information about a phone, a detective can help you

Private Investigations UK offers number-searching services to the public and businesses. Whether you need to find a number or find a person, our investigation services can help you to trace phone number in UK. It might not have occurred to you to hire a private detective for this kind of work, but our skill set is ideally suited. As well as having several phone tracking tools available, we can diversify the investigation as and when you need us to.

Unmask Private Number

We can trace “No Caller ID”

Are you being plagued by unwanted phone calls? You might not have realised, but a private investigator in UK can help you to find out who’s calling you.

If an unrecognised number is contacting you, we can find out who’s at the other end of the phone.

If an unmask private number is contacting you, we can find out who’s at the other end of the phone.

Locate Someone by Their Phone Number or Land Line

Find Out the Truth

Using reverse phone lookup strategies, we can trace the owner of a mobile number in the United Kingdom. Depending on the circumstances, we also offer mobile number searches abroad. 

Landline Phone Number Search

We can find the owner and other previous owners of a landline phone. 

File Analysis on Mobile Devices

If you bring us your phone or tablet with the password, we can digitally analyse its files. The analysis includes recovering deleted files and call logs.

Read More: How To Trace Unknown Phone Numbers?

All You Need To Know About Phone Number Tracing


Finding an address from a phone number has always been relatively complex compared to finding a number from an address. Even in the days of the phone book, you’d see listings by address, by name, but not by number.

In the modern age, when phone directories can be reverse searched easily by the public, it’s little help if you’re looking for someone ex-directory, or you’ve only got a mobile number. Thankfully, we have more tools at our disposal than the yellow pages.

To discuss how you can trace someone by their phone number, please call 0800 002 9858 for a free consultation. 

We price traces on a case-by-case basis, depending on whether they’re standalone or part of a more comprehensive investigation. For information on pricing structures, please get in touch with us

Phone tapping is illegal. It’s a myth that private detectives tap phones; we certainly don’t. We have a code of ethics and work hard to ensure all our investigations are totally legal.

“Who called me?” was the most searched phone-related query in 2020. Free-to-use number-search engines might help determine whether a call is marketing spam or not, but what if the caller has different motivations?

We can conduct reverse trace phone number lookups to determine who’s been trying to contact you.

Since 2009, we’ve been working hard on number tracking and phone number tracing strategies. As new technologies emerge, we update our methods. Here’s a quick run-down of how we’d conduct a typical number trace at the moment.

  1. Analyse the number. Trace phone number themselves sometimes contain information about the caller. We look at area and carrier codes first to see if there’s any helpful clues.
  1. Database Search. After the initial analysis, we run the number through an extensive set of databases. As the data is fed back to us, we can analyse the results in real-time.
  1. Data Analysis. The data that we receive from the search needs to be sifted and analysed. Once we’ve compiled a complete set of valuable data, we’ll call you to let you know what we’ve found.
  1. Next Steps. In your final report, all the information that we’ve found will be professionally organised and presented. Depending on your goals, we’ll discuss the potential of any leads that have emerged. We’ll offer you any additional services that we think might be helpful.

We’re committed to our policy against hidden costs. We’ll never do anything that might incur extra charges without asking you first. 

If you’re interested in using our private investigation services to conduct a phone number trace, please call us on 0800 002 9858, or contact us another way.


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If you need to find out where someone lives, PI UK’s Address Finder can help. 

We specialise in uncovering the past. PI UK offers private background checks for businesses and individuals.

Due Diligence helps you to ensure that your company is safe when you make major decisions.

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