NoCall

+44 20 3290 0307

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
—
Last report

AI Analysis

Limited information: Multiple reports indicate telemarketing and harassment activities, with the caller claiming to represent various UK mobile networks (Vodafone, O2, Lyca) to offer upgrades, discounts, or free SIM cards. Callers have been noted to have Indian and African accents. Some interactions turned confrontational when recipients declined to provide information or expressed skepticism.

Likely purpose: Fraud/Scam: Offering fake mobile network upgrade or discount offers to extract personal information or sell unsolicited products.

Most common user complaints

  • Claiming to be [Network] offering a [discount/free SIM card/etc.]
  • Asking for email address for an upgrade
  • Confrontational when declined
  • Immediate repeat calls after decline
High dangerBlockImpersonation detectedningunaTelecommunicationsMissed call

AI analysis: 10 Jul 2026

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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 It may contain errors or be out of date, and is not legal advice or a verified accusation against the number's owner.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

2 this week

Last 7 days

Community comments

14
Anonymous

Again, Spam en forma de llamada

Anonymous

Always busy when you call back, and worst of all even after blocking…

Anonymous

Another call from this number: Same story every week; also never saying a word...

Anonymous

yesterday Pure harassment, and on top of that never saying a word smh.

Anonymous

Again, They rotate numbers too and also without leaving a message!

Anonymous

Yet another one: Persistent sales calls, and on top of that never saying a word

Anonymous

yet another one: Pure harassment, to make it worse for no reason ugh!

Anonymous

Mobile network scams was reported as SMS spam con el número 020-32900307

Anonymous

First calling saying is from lyca, after i say i'm on vodafone he return 2 days later with the same number saying is from vadafone and trying to sale an offer.

Anonymous

Said in an Indian accent that she was phoning about a Vodafone sim upgrade. I said I wasn't interested and she phoned again straight away. I just cut the call immediately.

Anonymous

Was posing as 02. Asked for my email address I declined and asked if they have my details to tell me the name on the account. They didn't want to say. So when I mentioned I would contact 02 myself they hung up. They are trying to offer a free 5g sim card to your address so be vigilant and don't give them any info as if it was 02 they would know your name. Plus usually they don't contact you directly.

Anonymous

The individual purportedly representing O2 grew confrontational when I declined to verify my email and abruptly terminated the call

Anonymous

A woman with a distinct African accent purported to represent O2, requesting my email for an upgrade. Upon providing a phonetic rendition of my email address, she abruptly terminated the call

Anonymous

Claiming to be vodaphone offering a discount for a new phone

Report this number

What happened?

Signal summary for +44 20 3290 0307

+44 20 3290 0307 belongs to the 203 prefix and is classified as unclassified calls. This page combines no approved reports and 14 public comments to explain the risk level.

Frequently asked questions

Who calls from +44 20 3290 0307?
+44 20 3290 0307 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 3290 0307 a spam number?
There aren't enough reports yet to confirm whether +44 20 3290 0307 is spam. Check the risk score and the community comments.
Is it safe to call +44 20 3290 0307 back?
If you don't recognise the number and it has negative reports, it's best not to call +44 20 3290 0307 back. Avoid sharing personal or banking details with unknown numbers.
How can I block +44 20 3290 0307?
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 3290 0307.
Where can I report a suspicious call?
You can report +44 20 3290 0307 directly on this page using the report button. Your contribution helps other users identify unwanted calls.