02075517435

☎️ 02075517435 👆 is a valid (Landline) United Kingdom Phone Number and it is issued by Colt Technology Services. It is part of the phone block 207551 with a prefix of 020. The area code 020 originates from London.

You could come across this phone number on your Caller ID in one of these formats:

+442075517435+44 20 7551 7435020 7551 7435+44-20-7551-7435

If you want to return this call, click here to see the call charges.

020 7551 7435 Tagged as:

tesco tesco mobile o2 virgin london john scotland asia offcom sim

TimeLine of events for phone number 02075517435

  • Unrequested SIM card, no record
    Apr
    2026
  • Call was not answered
    Apr
    2026
  • Misidentified caller, blocked quickly
    Mar
    2026
  • Caller pretended O2, was scammer
    Mar
    2026
  • Aggressive scam call demanding login
    Mar
    2026
  • Persistent scam threatens SIM block
    Mar
    2026
  • Possible O2 scam, attempted fraud
    Mar
    2026
  • Scam call, disconnected when questioned
    Mar
    2026
  • Rude scam call claiming discount
    Feb
    2026
  • Repeated Tesco mobile scam calls
    Feb
    2026
  • Missed call; no message; blocked
    Feb
    2026
  • O2 Slough scam, no answers
    Feb
    2026
  • Accented Tesco rep spam blocked
    Feb
    2026
  • O2 scam; reported; under investigation
    Feb
    2026
  • Strong accent, poor connection, persistent
    Feb
    2026
  • Scam call, rude, blocked number
    Feb
    2026
  • Beware O2 scam phone charges
    Feb
    2026
  • Indian scam call about SIM
    Feb
    2026
  • Scam call; pushy, scripted, persistent
    Feb
    2026
  • Caller claims phone blocking imminent
    Feb
    2026
  • Suspicious call claiming telecom provider
    Feb
    2026
  • Impersonated O2 customer service
    Feb
    2026
  • Blocked persistent O2 caller promptly
    Feb
    2026
  • Labelled OT, probably a scammer
    Feb
    2026
  • Caller pretended to be O2
    Feb
    2026
  • Customer confusion, scam attempt, confrontation
    Jan
    2026
  • Number unknown, likely scam call
    Jan
    2026
  • Phone upgrade scam, requested details
    Jan
    2026
  • Annoyed by fake unknown calls
    Jan
    2026
  • O2 claimed, poor English speaker
    Jan
    2026
  • Fake O2 scam attempts information
    Jan
    2026
  • Scam call, suspicious noisy background
    Jan
    2026
  • Scammer confirmed, hung up abruptly
    Jan
    2026
  • Tesco contract upgrade claim doubted
    Jan
    2026
  • Caller claimed Tesco Mobile contract
    Jan
    2026
  • User suspects scam, doubts sim change
    Dec
    2025
  • Tesco Mobile spam called repeatedly
    Dec
    2025
  • Unknown number, scam, blocked, beware
    Dec
    2025
  • O2 scam sim card upgrade
    Nov
    2025
  • Scam alert: fake O2 complaints
    Nov
    2025
  • Persistent silent calls—number blocked
    Nov
    2025
  • Potential scam call claiming O2
    Nov
    2025
  • Scam call center; block immediately
    Oct
    2025
  • Warning: Beware, it's dangerous scam
    Oct
    2025
  • Suspected scam; verified with provider
    Oct
    2025
  • Tesco scam call blocked immediately
    Oct
    2025
  • Caller claimed Tesco, seemed scam
    Oct
    2025
  • Unknown call likely scam or marketing
    Oct
    2025
  • Scam warning; not affiliated with provider
    Sep
    2025
  • Phone didn't answer; not Tesco
    Sep
    2025
  • Unknown caller, no message left
    Sep
    2025
  • Tesco Mobile scam call attempt
    Sep
    2025
  • Suspected scam call, number blocked
    Sep
    2025
  • No response when I answered
    Sep
    2025
  • Frustrated with unpaid number removal
    Sep
    2025
  • Frustration with spam calls, Tesco
    Sep
    2025
  • Frustrated Tesco Mobile scam experience
    Sep
    2025
  • Missed call; discovered scam, blocked
    Sep
    2025
  • Called mobile first, then landline
    Sep
    2025
  • Scammer Elsa threatens SIM block
    Sep
    2025
Number Of Searches: 9 Number Of Comments: 54 First Seen: 30 August 2025 General Reputation: negative

This number has recently been searched from Bewdley(Worcestershire), Coalbrookdale(Shropshire), Hailey(Oxfordshire), Scrapsgate(Kent) and Swiss Valley(Carmarthenshire).

02075517435 has 54 comments of which 32 x negative and 22 x neutral

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02075517435 Summary (Read all comments)

Phone number ☎️ 02075517435 👆 is reported as a persistent scam number targeting mainly O2 and Tesco Mobile customers, often claiming your SIM will be blocked or needs replacing due to technical issues. Callers use poor British accents, sometimes from an Indian call centre, and pressure you for personal details or to click suspicious links. Many say the number spoofs a London location but is likely overseas. Several users report no response when answering, repeated calls with no voicemail, and hang-ups when challenged. It’s described as a nuisance, causing frustration and fear, with some victims noting the scammers’ annoyance when refused. The calls often come across as unprofessional, with scammers repeating the same script and creating fake urgency to trick recipients.

Reports on phone number 02075517435

2 months
So, I never asked for a new SIM card but somehow they sent me one anyway. They managed to get my email and sent me a code, which I never shared back with them. I called O2’s customer support and they said there was no request or record of a new SIM for my account. Quite suspicious if you ask me.
O2
3 months
I let the phone ring without picking up.
3 months
She said she was from Telephonica or something, but I’m pretty sure I’m with O2. Had a really thick Indian accent, so it was hard to understand properly. I just blocked the number straight away.
3 months
I got a call from someone claiming to be O2 saying my SIM needed changing. I explained I actually work at O2 and there’s no SIM replacements going on. She kept trying to convince me otherwise, but I just told her nicely that she was a scammer and to leave me alone.
3 months
They told me my sim would be blocked shortly. Then I was transferred to ‘senior management’ who asked for my account login info. When I declined, they got quite pushy, warning me about charges for a new contract and my sim being blocked. I just said I’d check my account myself and ended the call there.
3 months
Got a call from someone saying they were with O2, kept pushing really hard and even threatened to block my SIM. Definitely a scam.
4 months
I got a call from someone claiming to be O2 about switching my SIM card. They seemed to know quite a bit about me and even sent some convincing texts and emails, so I almost believed it was legit. Then, out of nowhere, they told me I’d won a tablet but had to pay a £1 delivery fee on my bank card. I wasn’t having any of it and didn’t give my card details. They hung up but not before trying to place an order for the tablet through some unwitting seller. Fingers crossed that so-called 'Fraud O2' has been stopped from completing that!
4 months
It was clearly a scam call. The person claimed to be from O2 and said they needed to talk to me since I handle the bills. They never used my name, which was odd because I'm actually with EE. Once I told them I wasn’t with O2, they just ended the call immediately. Added them straight to my block list.
EE
4 months
Got a call from a bloke speaking with an Indian accent, said he was John Wilson from 02. He told me my SIM card wasn’t good enough for the new tech and said they’d post me a replacement. He even promised a 30% cut on my monthly bill! The guy was pretty cheeky though, rude in fact, and told me to calm down when I questioned him! When I kept grilling him, he just snapped and hung up on me!
John Wilson
4 months
I got a call from someone claiming to be Tesco Mobile. After I ended the call, they kept ringing me back again and again.
Tesco Mobile
4 months
Phone rang, no message left. Just blocked it straight away.
4 months
Someone called saying they were from O2 in Slough, but they wouldn’t answer any of my questions. Definitely seemed like a scam.
Slough
4 months
Got a call from someone with a strong accent, claiming to be from Tesco, chatting nonstop about Tesco SIM cards. I ended up blocking the number straight away.
Tesco
4 months
Had a dodgy call supposedly from O2, so I reported it straight to the police. Surprisingly, they rang back about a month later, thinking I’d fall for it again - I had a good chuckle and told them off. Apparently, there's an investigation going on now. If you get a call like that, definitely ring O2 yourself to make sure your account’s safe.
4 months
Heads up, I think some people claiming to be from O2 might be trying to scam you. They sometimes offer these deals that sound too good to be true, like a discounted phone. But watch out - you'll get charged for the phone even though it never actually arrives. Keep an eye on your account!
4 months
I’m clueless about who she was. The line was bad and she spoke with a thick accent, so I couldn’t catch what she was saying right away. She kept pushing, trying to get me to pay attention to her. Didn’t give her a chance to go on, just blocked her straight after. She was really stubborn.
4 months
Someone claiming to be from O2 got annoyed when I didn’t hear her out the first time. Then she rang again and was cross when I ended the call. She said she wasn’t trying to scam me, but I wasn’t convinced. Her accent was hard to catch and she didn’t make much sense. I hung up once more, blocked the number, and decided to check it online. That’s how I ended up on this site.
O2
4 months
Got a call from a woman with an Indian accent saying she's from Tesco Mobile or O2. She told me my sim's about to get blocked in a day or two and offered to send a replacement sim free of charge. Seemed a bit dodgy to me.
Tesco MobileO2
5 months
I got a call from an Indian woman who claimed she was calling from Virgin or O2, telling me my number was about to get blocked. It sounded a bit dodgy to me.
Virgin
5 months
Got a call from this number earlier. The person on the line claimed they were from O2, but I told them O2 isn’t my network and asked why they were ringing me. Then she started saying something about Virgin instead. I just ended the call straight away.
Virgin
5 months
They said they were from O2 customer support.
5 months
The moment they mentioned O2, I hung up since I've got a different network. Then, they called back after a little while, so I just decided to block the number altogether.
5 months
Claims to be from OT but I’m pretty sure it’s just some sort of scam.
5 months
Got a call from someone saying they were with O2.
5 months
The call stopped after just a couple of rings, didn’t get a chance to answer. Thought it might be dodgy and after looking it up here it seems to be a scam, just as I suspected.
5 months
Got a call about upgrading my phone plan, said they’d send a new SIM card to swap. Then they asked for my account details, which seemed fishy. Definitely a scam trying to get my info.
5 months
I have my phone set to make strangers say who they are before I even answer. If they don’t, it just shows up as a missed call. This one didn’t bother leaving a message, so I reckon it was probably some dodgy number. Honestly, these fake calls are driving me nuts. I’m not a fan of talking on the phone anyway.
5 months
Caller claimed to be from O2 but struggled to get a word out in English.
Caller
5 months
Got a call from someone claiming to be O2 about needing a new SIM because of some O2 Virgin Media thing. They first asked if I was happy with the service, then suddenly passed me to their 'manager' who wanted all my account info. I wasn’t sharing anything, so they then asked me to spell out my email address and stuff. Felt very fishy to me.
O2O2 Virgin Media
6 months
She called claiming to be from O2, said my SIM card would stop working the next day and that a replacement would be sent by courier. Asked for my email, and even though I told her O2 already has it, she insisted on confirming it with me. I told her she was the one who called me, so why did she need my details? She pushed for it anyway. So I tried a trick - told her I'd give half my email if she gave me half of hers. Then she suddenly ended the call. Definitely a scam!
6 months
Someone called me claiming to be from Tesco and said there’s been some technical issues with contracts. They also mentioned they’re going to upgrade things in the next few days, but to be honest, I’m quite sceptical about that.
Tesco
6 months
Someone called saying they were from Tesco Mobile and wanted to discuss my contract details.
Tesco Mobile
6 months
Sounds like a scam to me. They keep saying that because O2 merged with Virgin, I need to change my sim card by getting a new one from them. I’m not convinced at all that I actually need to swap my sim.
O2Virgin
6 months
Accidentally answered a call from what I thought was Tesco Mobile, but then they kept ringing me back like 4 times, totally annoying spam calls.
Tesco Mobile
6 months
Got a call from a number I didn’t recognise on my mobile, didn’t pick up. Looked it up on here and found out it’s a scam. I’ve blocked it now. Watch out!
7 months
Got a call from someone claiming to be O2, saying they’re doing a network upgrade soon and that we’d have to get a new SIM card sent out. Feels like a scam call centre to me.
8 months
Just got a call from someone claiming to be from O2 complaints, asking for my email and username so they could supposedly access my account. Obviously dodgy, so I blocked the number straight away and reported it. Watch out, it’s a scam!
8 months
Got a few calls from this number but when I picked up, no one was on the line. Decided to block it.
8 months
Really dodgy, you shouldn’t believe what they’re saying.
9 months
Someone called saying my mobile SIM would be cancelled soon due to some technical problems, but they’d send a new SIM with my number on it. I had a bad feeling about it so told them I’d sort it later. They didn’t even get to explain what info they wanted. I quickly rang my mobile network and they said everything was fine, nothing was going to happen to my SIM. Bloody scammers!
9 months
Some guy claiming he was from Tesco mobile called me. I’m not even with Tesco mobile, so I ended the call straight away. They called back right after, so I’ve just blocked the number now.
Tesco
9 months
I got a call from 02075517435 on my mobile earlier. The guy said his name was John and he had a foreign accent, claiming he was ringing from Tesco Mobile. Before he could go on, I told him my phone flagged the call as spam. He sounded a bit frustrated but kept insisting he was from Tesco Mobile. I could hear other voices in the background saying different company names, sounded like a call centre for sure. I just hung up and blocked the number straight away.
JohnTesco Mobile
9 months
Got a call from some number I didn’t recognise so I just ignored it. They didn’t bother leaving a voicemail, which is usually a sign it’s just some scam or annoying sales pitch.
9 months
Some bloke said my 02 SIM was going to be blocked soon. I don’t even use 02. Told him right away it’s a load of rubbish.
9 months
I didn’t pick up, I’m with 02 too so sounds like it’s not only Tesco doing this.
Tesco
9 months
Didn’t say who it was and no voicemail left.
10 months
Got a call from 020 7551 7435, didn’t pick up cos my phone flagged it as a possible scam. No voicemail or nothing left. Had a quick look here and then just blocked the number.
10 months
i picked up but there was nothing but silence on the other side
10 months
I'm also with Tesco Mobile, and as soon as I said "what do you want?" they hung up. Typical scam call!
Tesco Mobile
10 months
How come OFFCOM still hasn’t done anything about this number? Oh wait, it’s all about the cash isn't it!
OFFCOM
10 months
Number's the same, same rubbish from these Asian lot, saying my SIM’s about to be cut off, all that nonsense. Wasn’t paying attention but just let them ramble on for 20 minutes, ignoring every word...kept going over the same old story again and again...blocked them finally. I’m with Tesco Mobile too, feels like they’ve handed out our details - proper disgrace, Tesco, and Ofcom, you need to do something about this.
SIMTesco MobileTescoOfcom
10 months
Got a call but no voicemail or anything!!! Looked it up here and found out it’s a SCAM 🤬🤬🤬🤬. Blocked them straight away and reported it.
10 months
Got a call first on my mobile and then on my home phone.
10 months
Got a dodgy caller on the line claiming to be Elsa, said my SIM was about to get blocked. She tried to get my info and claimed she could send a DPD guy with a new card in a day. I told her I’d just pop into the shop, but she said that would be £35 extra. When I called her out as a scammer, she just hung up. This is the second fake Tesco call I’ve had today from different numbers.
ElsaTesco

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Call Charges

If you want to return a call to ☎️ 02075517435 👆, it will cost you £0.16 per minute on landline and between between £0.03 to £0.65 per minute on mobile. Additionally, there might be a connection charge of £0.23.

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