NoCall

+44 20 3239 4757

Risk level: High

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Who is this? Spam, telemarketing or a legitimate call? Community reports in United Kingdom.

High
Risk level
—
Category
0
Spam reports
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Last report

AI Analysis

Limited information: Multiple reports indicate scam attempts posing as UK mobile providers (O2, Three Mobile Network) offering discounts or requesting account resets, targeting non-customers. Tactics include requesting email verification and temporary passcode changes. Some reports mention the caller having an Indian accent.

Likely purpose: Scam: Phishing for personal/account info via fake UK mobile provider offers

Most common user complaints

  • posing as UK mobile provider (O2, Three Mobile Network)
  • offering discounts to non-customers
  • requesting account reset
  • requesting email verification
  • requesting temporary passcode change
High dangerBlockImpersonation detectedningunaTelecommunicationsFake prizeMissed call

AI analysis: 10 Jul 2026

Summarize this NoCall number with

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Information based on community reports and automated analysis. It may contain errors or be out of date, and is not legal advice or a verified accusation against the number's owner.

GB

United Kingdom

Operator information

Country:
GBUnited Kingdom
Prefix:
+44
Type:
Other
Operator:
EE, O2, Vodafone, Three

Recent searches

4 this week

Last 7 days

Community comments

19
Anonymous

today Nobody speaks when you answer, to make it worse without leaving a message!

Anonymous

Yet another one: Nobody speaks when you answer, and on top of that even after blocking!

Anonymous

another call from this number: Spam at all hours, plus and nobody does anything lol

Anonymous

Spam at all hours, and worst of all every single day

Anonymous

Another call from this number: Sales pitch after sales pitch, plus without leaving a message!!

Anonymous

again, Persistent sales calls, and worst of all every single day smh...

Anonymous

today Repeated nuisance calls and also every single day smh!

Anonymous

Always at the same hours and also never saying a word!!

Anonymous

They rotate numbers too, and worst of all even after blocking

Anonymous

Mobile phone scam was reported as Estafa con el número 020-32394757

Anonymous

seemingly Indian scammer called claiming to be from O2 when I'm not even an O2 customer, asked me to reset my account, when I told him im not even an O2 customer he asked what provider I use. i just told him im not interested and he kept asking me why I'm not interested. just hang up on him - unless you have a bit of time to have some fun :).

Anonymous

Caller claimed to be from Three Mobile Network offering special discounts.

Anonymous

They Rang me and I wasn't able to answer - they left no message - so I searched the No. and glad I didn't answer from a potential scam caller.

Anonymous

Said they were from 3 Mobile network. Asked to confirm email address to provide discount to my phone bill. I am not a 3 customer.

Anonymous

El número 020-32394757 ha sido asignado a Mobile phone scam.

Anonymous

SICK SCAMMER! F.O

Anonymous

Someone calling me on the phone who claimed to be from 02 was offering discounts, and requesting verification of the email address and mobile number

Anonymous

El número 020-32394757 was rated with score 9

Anonymous

A person posing as your mobile phone provider offers you a discount if you "temporarily" reset your passcode to one they provide. It's a scam.

Report this number

What happened?

Signal summary for +44 20 3239 4757

+44 20 3239 4757 belongs to the 203 prefix and is classified as unclassified calls. This page combines no approved reports and 19 public comments to explain the risk level.

Frequently asked questions

Who calls from +44 20 3239 4757?
+44 20 3239 4757 is a phone number with the 203 prefix in United Kingdom. It has no spam reports yet, but you can check other users' comments below. Check the comments to find out who might be behind this call.
Is +44 20 3239 4757 a spam number?
There aren't enough reports yet to confirm whether +44 20 3239 4757 is spam. Check the risk score and the community comments.
Is it safe to call +44 20 3239 4757 back?
If you don't recognise the number and it has negative reports, it's best not to call +44 20 3239 4757 back. Avoid sharing personal or banking details with unknown numbers.
How can I block +44 20 3239 4757?
On iPhone, go to Recents in the Phone app, tap the (i) next to the number and choose 'Block this Caller'. On Android, long-press the number in your call history and select 'Block number'. You can also use the NoCall app to automatically block calls like +44 20 3239 4757.
Where can I report a suspicious call?
You can report +44 20 3239 4757 directly on this page using the report button. Your contribution helps other users identify unwanted calls.