Tagged reports

SIM card upgrade calls

247 community reports tagged SIM card upgrade across 198 numbers.

Last 7 days
3 Steady
Usually 2.6 a week
Last 30 days
14
247 in total
Numbers
198
14 new in 30 days
First reported
17 Jan 26
Latest 3 Nov 2026

Recent activity

Reports tagged SIM card upgrade are steady: 3 reports in the last 7 days, in line with a usual 2.6 reports a week.

When people report it

Wednesday is the busiest day for these reports, and 59% are filed in the afternoon (12pm to 6pm). Times are when the report was submitted, which is usually soon after the call.

Verdict

99% of reporters rated these calls spam or suspicious. The most common call type is Mobile Network Scam (EE, O2, Three, Vodafone).

Numbers used

Reports tagged SIM card upgrade cover 198 different numbers. 14 of them were first reported in the last 30 days, so a number you have not seen before can still be part of the same pattern.

Reports over time

Reports per day over the last 30 days. Reports per week over the last 12 weeks. Red weeks had at least double the usual volume. Reports per month over the last year.

How people rate these calls

  • Spam 173 · 70%
  • Suspicious 72 · 29%
  • Unknown 2 · 1%
  • Safe 0 · 0%

Most common call type: Mobile Network Scam (EE, O2, Three, Vodafone)

Busiest days

All reports by the day they were submitted.

Time of day

When reports are submitted, UK time.

  • Night 12am to 6am 3
  • Morning 6am to 12pm 66
  • Afternoon 12pm to 6pm 145
  • Evening 6pm to 12am 33

Latest reports

Spam 8 months ago
020 8054 9983

"Pretended to be from O2, saying my SIM card had to be "upgraded to super 5G" or my number would get disconnected."

O2 SIM card upgrade
View number →
Spam 8 months ago
01922 914786

"Total stammer. Called saying they were from 3 and that my number was gonna be disconnected. Which is clever since I left them last year. After I hung up again, I got a voicemail calling me a [profanity] cow lmao. Don’t fall for it!!!"

Spam 8 months ago
020 3996 9422

"They said they were O2. Said my current sim card would stop working tomorrow, and I need to use the new one that will come to my address. When I started recording the call and asked her to say it again, she put the phone down."

O2 SIM card upgrade
View number →
Suspicious 8 months ago
020 8156 3843

"Said they were calling from EE and wanted my email address to send me a new sim card tomorrow. I'm sure it was a scam call."

EE SIM card upgrade
View number →
Spam 8 months ago
07757 103305

"They said they were from O2 calling about my SIM card. I said I wasn’t with O2, they said they were actually from Vodafone and that my SIM card was « outdatedΒ Β» and will be deactivated, they started asking me personal informations. I called them scammers they hung up straight away. Feel bad cause if my nan was to answer the phone she would 100% believe it’s true. Shame on them. Karma will do its job."

Spam 8 months ago
020 4621 3571

"Said they were calling from 02 and that I needed to get in touch or my SIM would be blocked. This happened at the same time as an email about renewing my SIM card. Kept phoning, wanting the code that was sent to my phone. It's a scam."

Suspicious 8 months ago
020 3327 9850

"Told me he was calling from 02, with a 5G upgrade because of complaints. The search results say free upgrades are a scam."

O2 SIM card upgrade
View number →
Suspicious 8 months ago
01795 883441

"They said there from EE and that your SIM card is going to stop working and they can get you set up on a new one so your safe I managed to really annoy him and before hanging up said he going block my SIM and number"

EE SIM card upgrade
View number →
Spam 8 months ago
020 3795 7216

"Reported as the number used for a SIM deactivation scam. Got a cold call from this number today but let it ring out since it was unknown."

SIM card upgrade
View number →
Spam 8 months ago
01384 982362

"They rang me on 07440 458197 saying they were from 3 network and told me my sim card would stop working in two days ... I put the phone down when i realised it was a scam call.... They then called me back right away on 01384 98 2362 asking why i put the phone down... He got rude so i hung up again....."

Spam 8 months ago
01234 374053

"A SIM swapping scam call that tries to trick people into letting them control their phone number, so they can get past two-factor authentication for bank accounts. They said my SIM card needed an upgrade or it would be cut off. She sent a Virgin Media text with a verification code to my phone to "prove" it was real. I ended the call when she kept trying to get my email address."

Spam 8 months ago
020 3795 6964

"Said he was from 02 about upgrading my SIM. They send a text from 02 about fraud and a code which they asked me for. They can use the code to get control of your SIM card."

Suspicious 8 months ago
01234 374053

"Said they were from o2 and my sim card needed updating and i'd get a new SIM tomorrow. Then wanted me to check my email address but he rang off when I asked him to check it first"

O2 SIM card upgrade
View number →
Spam 8 months ago
020 3745 6091

"Said they were from o2 and told me they would block my sim, when I said thats obviously not true, they said fine I'll do it now. Very obviously trying to scare me into giving them info, just hung up"

O2 SIM card upgrade
View number →
Spam 8 months ago
020 4639 0992

"Said they were calling from O2 and Virgin Media. They said O2 would be turning off 4G and they needed to send a new SIM tomorrow and then stop the old one. They never wanted my address which seemed strange because I use pay as you go and O2 don't have it. A quick search online shows O2 aren't turning off 4G so it's a scam. I let them talk and the sim replacement ended up with them wanting to send a code for me to call back over the phone. I refused and they asked why. I told them I didn't trust the call and they sighed and ended the call."

We value your privacy

We use cookies to enhance your browsing experience, analyse site traffic, and show personalised ads. You can choose which cookies to accept below. Read more about cookies on CallerCheck.co.uk

Cookie Settings

Manage your cookie preferences

Essential Cookies

Always Active

Required for the website to function. These cannot be disabled as they are necessary for security and basic functionality.

callercheck_sessionSession management
XSRF-TOKENSecurity (CSRF protection)
cc_consentStores your preferences (6 months)

Analytics Cookies

Help us understand how visitors interact with our website by collecting anonymous information.

Google Analytics
_gaVisitor identification (2 years)
_ga_*Session state (2 years)
_gidUser distinction (24 hours)

Advertising Cookies

Used to show ads, which keep CallerCheck free. With these off, no ads are shown.

Google AdSense
Contextual and personalised advertising

Functional Cookies

Enable enhanced functionality like social sharing buttons and embedded content from third parties.

YouTubeEmbedded videos
Google MapsEmbedded maps
View full Cookie Policy