Not sure
Did not answer as unknown number, not on my contact list. Did not leave a message. Phoned each day same time15.00
07921 787555 +44 7921 787555
Mobile number, originally on Telefonica UK Limited · Also written +44 7921 787555
Mixed reports07921 787555 has 1 report on Who Calls You: 0 marked as spam, 0 as safe and 1 not sure. Last report 1 week ago.
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About 07921 787555
07921 787555 is a mobile number. It sits in the block 07921 7xxxxx, which Ofcom allocated to Telefonica UK Limited on 28 September 2004. People searched for it 4 times in the last 7 days and 5 times in the last 30 days, most recently yesterday. It has one report, sent on 2 November 2026, describing it as other. Calling it back costs the same as a normal UK call. We first listed it on 2 November 2026, when a visitor reported it.
Number details
- UK format
- 07921 787555
- International
- +44 7921 787555
- No spaces
- 07921787555
- No spaces with +44
- +447921787555
- Number type
- Mobile
- Prefix
- 07921
- Original network
- Telefonica UK Limited
Cost to call: Normal rate · Mobile (07). Charged as a call to a UK mobile and included in the minutes of most phone plans. UK call costs
Most 07 numbers are UK mobiles. Scammers often use mobile numbers because they are cheap to get and easy to change.
Network details come from UK numbering allocations. The number may have moved to another provider since, and this does not show who made a call.
Numbers in the same range (07921 7xxxxx)
07921 787555 is in the number block 07921 7xxxxx (100,000 numbers), allocated by Ofcom to Telefonica UK Limited on 28 Sep 2004.
No other numbers from this block are on Who Calls You yet.
Companies and call centres often use numbers from one block, so reports about nearby numbers can be a useful hint. They are not proof about this number: blocks are shared, and numbers can be moved to another provider.
Recent activity
Last 30 days: 5 lookups and 1 report on Who Calls You.
Hover or tap a bar to see that day's reports.
SpamSafeNot sureBar height = reports that day
Reports about 07921 787555
1 report · 0% say spam
0 spam 0 safe 1 not sure
Other 1
Report 07921 787555
What you should do
- Do not share personal or bank details with an unexpected caller. Banks, HMRC and the police never ask for PINs, passwords or one-time codes.
- Do not call back blindly. If the caller claims to be a company, contact it on the number from its official website, your card or a letter. For your bank you can call 159. Should you call back an unknown number?
- Block the number if the calls are unwanted (see below).
- Report it above, and report scams to Action Fraud. Forward scam texts to 7726 for free.
Caller ID can be faked. Scammers can make any number appear on your screen, including real numbers of real businesses or people. A report here is information to help you decide, not proof of who called.
Questions about 07921 787555
Who called me from 07921 787555?
07921 787555 is a UK mobile number, originally on Telefonica UK Limited. 07921 787555 has 1 report on Who Calls You: 0 marked as spam, 0 as safe and 1 not sure. It is also written as +44 7921 787555, 07921787555 or +447921787555. We do not show who owns a number. Caller ID can be faked, so check the reports and never share personal details with a caller you do not know.
Is 07921 787555 a scam?
0 of 1 people who reported 07921 787555 marked it as spam or unwanted (0%). Reports are personal experiences, not proof. If a caller asks for money, codes or bank details, hang up and contact the organisation on its official number.
How do I block 07921 787555?
On iPhone open Recents, tap the (i) next to the number and choose Block Caller. On Android open the call log, press and hold the number and choose Block. On a landline, ask your provider about free call blocking such as BT Call Protect.