UK Telephone Data Validation

Marketing Data Solutions recognises the importance of accurate client data and we help our clients maintain their own existing databases, ensuring their multi channel marketing campaigns are utilising live and up-to-date contact information.

We are well aware that data decays every day, month and year. Typically landline telephone numbers in the UK decay at a rate of approx 20% per annum.

Marketing Data Solutions can validate client information to check its accuracy and recency across the three most important channels today:

  • Landline
  • Mobile
  • Email


We can identify if the landline telephone number you provide us is live and contactable and we can even tell you why a number won’t connect, giving you valuable information on who you should prioritise and who perhaps you shouldn’t try to contact.


We also provide mobile checking and validation, providing you with information as to whether the mobile numbers you have supplied are live, invalid or dead.

Landline and Mobile Validation services are over 99% accurate at the point of validation.


Email marketing is a hugely important marketing channel for our clients and we provide solutions that check the validity and accuracy of an email address and thus ensure our clients only send emails to people who have provided accurate and live email addresses.

To Re-Cap

It is so important to our clients that they utilise their time and marketing efforts contacting people who want to be contacted through their preferred communication channel.  In order to do this, our clients need their customer contact data to be accurate and live. At Marketing Data Solutions we help to maintain customer data by validation and provide our clients with valuable information to help them make better, more informed business decisions.

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