The TPS register holds around 13.5 million UK phone numbers and the CTPS register around 1.1 million (live files, October 2026). TPS covers individuals, including sole traders and partnerships outside Scotland other than LLPs, on landlines and mobiles; CTPS covers limited companies, PLCs, LLPs, Scottish partnerships and public bodies. Both reach list cleaners as files of numbers only, rebuilt every day, and an unsolicited marketing call to a listed number breaks regulation 21 of PECR once it has been listed for 28 days (unless the subscriber has told that caller they do not object, regulation 21(4)).
The current figures
The table below is two dated snapshots from the files we load each day.
13,468,654 numbers on the TPS register and 1,077,326 on the CTPS register. File dated 15 October 2026, reloaded daily.
| File date | TPS numbers | CTPS numbers |
|---|---|---|
| 10 October 2026 | 13,464,099 | 1,073,057 |
| 15 October 2026 | 13,468,654 | 1,077,326 |
Over those five days the TPS file grew by 4,555 numbers and the CTPS file by 4,269. Those are net figures: new registrations minus numbers taken off. TPS is about twelve times the size of CTPS, which is what you would expect from a consumer register set against a corporate one.
Who keeps the registers
The legal duty sits in regulation 26 of PECR. It requires "the Commission" (the Information Commission since 30 September 2026, previously the Information Commissioner) to "maintain and keep up-to-date" a register of numbers whose subscribers do not want unsolicited direct marketing calls. Regulation 26(5) lets those functions be carried out on the Commission's behalf by another organisation under an arrangement.
In practice that organisation is The Telephone Preference Service Limited (TPSL), which, in its own privacy notice, "collects and processes data in order to maintain the TPS and Corporate TPS (CTPS) Registers" and describes itself as part of the DMA Group. Registration is free for the person registering. Callers pay: regulation 26(3) says information from the register is made available on payment of a fee, which is why access runs through a TPS or CTPS licence. Voll Studios Ltd, the company behind TPSClear, is licensed by the DMA as a TPS and CTPS list cleaner.
How numbers get on, and how they come off
Anyone can register a residential or mobile number at any time, online, by phone, by post, or by texting "TPS" and an email address to 85095 from the mobile. The TPS covers mobile numbers in the same way as landlines; our files carry no mobile or landline split.
A TPS registration does not lapse. The TPS registration page says: "Once you’ve registered a number with the TPS, you won’t need to do it again." Numbers come off when, under regulation 26(2), there is reason to believe a number is no longer allocated to the subscriber who registered it, and TPSL's privacy notice describes an accuracy programme that removes inactive numbers.
CTPS works differently. Corporate registrations must be made in writing (regulation 26(1A)), and regulation 26(2A) requires a written reminder within 28 days after each anniversary of a number first being listed. The CTPS registration page goes further: "You’ll need to renew your subscription annually", with confirmation required "to ensure continued registration".
For callers, the timing rule is regulation 21(3): you have not breached the rule if the number "has been listed on the register for less than 28 days preceding that on which the call is made." After day 28, the registration counts in full.
What 13.5 million means for a calling list
A register this size, which loses numbers mainly when they are found to be inactive or no longer allocated, will show up in almost any list of UK consumer numbers of meaningful size. The share depends on where the list came from and how old it is. The TPS file added around 900 numbers a day net in mid-October 2026, so a list that was clean last quarter is not clean today.
B2B lists hit both registers. A sole trader, or a partnership outside Scotland that is not an LLP, sits on TPS, not CTPS, so a team that screens only against CTPS misses them. The split is set out in TPS vs CTPS, and how the two registers fit into a suppression routine alongside your own opt-outs is in TPS and CTPS suppression explained.
How the files reach list cleaners
Licensed list cleaners receive the registers as data files. The privacy notice is specific about what is in them: "The Registers only contain telephone numbers. No other information is shared with licensees for the purpose of screening." There are no names, no addresses and no registration dates in the file a cleaner screens against.
The full files are rebuilt every day, around 04:00 UTC, and our register service reloads them by 09:00 UTC. The counts above come from that daily load. For a single number you can use our free TPS check or CTPS check, which look the number up in the TPS and CTPS register files we hold under our DMA licence.
Why you may see bigger figures online
Older pages online quote much higher figures, roughly twice as high for TPS and nearly three times as high for CTPS. The current files are the authority: around 13.5 million TPS numbers and 1.1 million CTPS numbers in October 2026.
Summary
TPS holds around 13.5 million numbers and CTPS around 1.1 million (live files, October 2026), and each grew by more than 4,000 numbers net in five days of October 2026. TPS registrations need no renewal; CTPS registrations are confirmed each year. The files contain numbers only, are rebuilt daily, and a listed number becomes off limits for unsolicited marketing calls 28 days after it joins.