020 3998 4263
Also shown as:
- 020 3998 4263
- +44 20 3998 4263
AI Summary
Based on 2 community reports
This London number is being used by scammers impersonating O2 mobile network. Callers claim to be from O2 and ask for personal details like email addresses to "confirm your identity" - a classic phishing tactic. When people correctly refuse to provide information or mention they don't have an O2 contract, the callers immediately hang up.
This is a fake O2 scam designed to steal your personal information. Legitimate companies don't cold-call asking you to confirm your identity by providing sensitive details. If O2 genuinely needs to contact you, they'll send a text to your registered number or you can call them directly using the official number on your bill. Never give out personal information to unsolicited callers, even if they claim to be from your network provider.
2 verified reports
Cumulative spam score based on all reports up to each month. Higher percentage means higher reported scam risk. Cumulative spam score based on all reports up to each week. Higher percentage means higher reported scam risk. Cumulative spam score based on all reports up to each day. Higher percentage means higher reported scam risk.
Most helpful reports
2 totalThis number called me saying they were O2. Asked for my email address to confirm my identity, which I said no to.
Called from O2 - I dont have a contract with O2 when I told them this they hung up
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About 020 3998 4263
What type of number is 020 3998 4263?
The phone number 020 3998 4263 (also written as +44 20 3998 4263) is a UK landline number originating from the London area in Greater London . Calls to this number are charged at standard UK landline rates, usually included in call packages.
Is 020 3998 4263 safe to answer?
Based on 2 community reports, this number has been frequently reported as spam or a potential scam. The current risk score is 75% with 1 report marking it as spam .
Exercise extreme caution if you receive a call from this number. Do not share personal or financial information.
More on nuisance calls
Safety Score
Details
- Tel Number
- 020 3998 4263
- Country
- 🇬🇧 United Kingdom
- Network
- Colt Technology Services
- Area
- London
- Type
- Geographic
- First Seen
- 23 Jan 2026
Protection Guides
How to Block This Number
Step-by-step instructions for iPhone, Android, and landlines
Still Getting Calls Despite TPS?
Why you might still receive calls after registering with TPS, and what you can do about overseas scammers ignoring the register.
Report Nuisance Calls to Ofcom
How to report unwanted calls to Ofcom and what happens next. Plus 7726 spam text reporting.
Caller ID Spoofing
Scammers can make any number appear on your phone, including your bank's real one. How spoofing works, how to spot it, and what to do if your own number is being used.
Location
London, United Kingdom
This number originates from the London area code region. The map shows the general geographic area, not an exact location.
Call Types
Breakdown of reported call reasons. Larger segments and bars represent a bigger share of reports.
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