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Decibel
[ TPS + CTPS ][ Live register check ]

[ Free tool ]

Free TPS and CTPS checker.

Enter a UK number to see whether it is registered on the Telephone Preference Service or the Corporate TPS, before you make a sales call.

decibel.tools/tps

3 free checks a day. We send what you enter to our checking provider and keep only a scrambled (hashed) copy so repeat checks are instant. See our privacy policy.

[ Reading the result ]

What each answer means.

✓ Clear

Not on either register

You can make a live sales call, as long as the person has not told you to stop and the number is not on your own do-not-call list.

✓ TPS

Registered on the TPS

An individual, sole trader or partnership has opted out. No unsolicited marketing calls unless they have told you they do not object.

✓ CTPS

Registered on the CTPS

A company or organisation has opted out. The same rule applies: no unsolicited marketing calls to this number.

[ How it works ]

What happens when you press check.

01

We tidy the number

Spaces and brackets are removed and the number is put into standard UK format. Only UK numbers can be on the TPS or CTPS.

02

We check both registers

The number is looked up against the current TPS and CTPS registers through a TPS screening service.

03

You get the answer

Registered or not, for each register. Checks of the same number in the next few days come back instantly.

[ FAQ ]

Questions, answered.

Find the right people, check them and call them in one place.

£149 a month · 3-day setup · ex VAT