020 8081 5918
Also shown as:
- 020 8081 5918
- +44 20 8081 5918
AI Summary
Based on 7 community reports
Calls from this London number seem to be linked to various mobile providers like O2 and Tesco, with reports indicating they claim to offer free SIM upgrades or warn about service disconnections. Many reports label the calls as spam, with phrases like needing to activate a new 5G SIM or threats of being cut off. Additionally, there’s uncertainty about the actual carrier, as some reports suggest it might involve Vodafone or EE. With a spam score of 87/100 and no upvotes supporting any genuine interaction, it's best to view this number as suspicious. If you receive a call from this number, it’s advisable to hang up and avoid sharing any personal information.
7 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
7 totalCalled from O2 saying they had a free 5G sim upgrade for me.
Called from this number claiming they were from O2. I'm not with O2 so it's definitely a scam.
Said they were calling from 02 about a new SIM, or being cut off.
Called saying they were from Tesco and needed to activate my new 5g SIM card
saying to customers that their sim will be cut off and disconnected
Said they were from Tesco mobile and told me my phone would stop working in 24 / 48 hours and 4g would be turned off
Possibly spam call from Vodafone / EE
Share Your Experience
Help others by reporting what happened
About 020 8081 5918
What type of number is 020 8081 5918?
The phone number 020 8081 5918 (also written as +44 20 8081 5918) 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 8081 5918 safe to answer?
Based on 7 community reports, this number has been frequently reported as spam or a potential scam. The current risk score is 87% with 4 reports 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 8081 5918
- Country
- 🇬🇧 United Kingdom
- Network
- Colt Technology Services
- Area
- London
- Type
- Geographic
- First Seen
- 12 Mar 2026
Protection Guides
How to Block This Number
Step-by-step instructions for iPhone, Android, and landlines
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.
Report to Ofcom
How to report nuisance calls officially
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.
Is this your number?
Claim ownership to manage reports
We'll verify ownership via callback or documentation