NoCall

+44 203 040 506 0

Risk level: High

Who is this? Spam, telemarketing or a legitimate call? Community reports in United Kingdom.

Number with prefix 203. Review community reports, risk and comments below before answering or blocking. Browse numbers with prefix 203

High
Risk level
Scam
Category
0
Spam reports
—
Last report

AI Analysis

Limited information: Multiple reports indicate harassment and scam attempts, primarily impersonating TalkTalk technical support to gain computer access or charging high rates for calls. One user mentions a potential connection to a UK government-listed service page, but this is unclear in context.

Likely purpose: Scam/Harassment: Gaining unauthorized computer access or financial gain through premium rate calls.

Most common user complaints

  • claiming to be from TalkTalk technical dept
  • want access to my computer
  • charged £££ per minute
  • harassment with multiple calls
High dangerBlockImpersonation detectedNone (Impersonates TalkTalk)TelecommunicationsMissed call

AI analysis: 10 Jul 2026

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 It may contain errors or be out of date, and is not legal advice or a verified accusation against the number's owner.

Web research

The number appears to be a UK national/global format line; current sources summarize UK numbers and flag unknown numbers, but no definitive, reliable, exact match public record confirms ownership or a clear category for this specific dial code beyond general classifications. Online chatter includes common “who called me” and spam report style sites, but reliability varies and hinges on user contributed data.

View full report

The number appears to be a UK national/global format line; current sources summarize UK numbers and flag unknown numbers, but no definitive, reliable, exact match public record confirms ownership or a clear category for this specific dial code beyond general classifications. Online chatter includes common “who called me” and spam report style sites, but reliability varies and hinges on user contributed data. 1. What the number appears to belong to: No definitive public record confirms ownership; it is listed as a UK format number that could be landline, mobile, or non geographic, but exact type for this specific digits sequence is not verified. 2. What people say about it online: Various UK reverse lookup and spam report sites show generic entries for unknown numbers, with user reports ranging from telemarketing to suspected scams; reliability is inconsistent. 3. Association with spam, scams, or unwanted calls: There are reports in aggregate spam/lookup databases suggesting potential nuisance calls, but no consistently verified fraud alert tied specifically to this exact number. 4. Public exposure/leakage: The number is listed in public looking lookup databases and crowd sourced reports; presence there indicates public exposure, but there is no clear evidence of a data breach or leak tied to this exact number. 5. Advice on answering: Given ambiguous ownership and mixed reports, avoid returning calls or sharing personal data; treat as potentially risky until verified by official sources or the organization if contact is expected.

Checked · 19 Aug 202611 sources
GB

United Kingdom

Operator information

Country:
GBUnited Kingdom
Prefix:
+44
Type:
Other
Operator:
EE, O2, Vodafone, Three

Recent searches

1 this week

Last 7 days

Community comments

6
Anonymous
25 Jul 2018

appears on this site ncsc.gov.uk/off-the-shelf-service/redcentric-health-and-social-care-network-hscn-consumer-network-service

Anonymous
31 May 2018

usual pakistani,muslim sounding scammer claiming to be from solicitors. for some reason he didnt take too kindly to the barrage of verbal abuse from me and eventually took the hint after calling back 5 times in rapid succession for more of the same treatment. sometimes its just nice to be able to unload your abuse at someone who cant complain about you. :)

Anonymous
16 Mar 2017

0203 numbers often appear genuine because part of "urgent security notice" pop-up page and you're invited to call the number for the "technical department" to help you clear up your security problem. NEVER CALL – it appears to be a UK "normal" area code but has been acquired by crooks and you will end up being charged £££'s per minute if you call it. THAT'S where they grab your money.

Anonymous
4 Oct 2016

Same as above. Male called Jacob claimed to be from TalkTalk technical dept. English speaking. Stated wanted to suspend our internet for 2 days and download a programme to allow them to work on it. Told to go away. TalkTalk scam

Anonymous
1 Oct 2016

Calls every week even if I block the number . they seem to have access to a lot of lines. They claim to be from talk talk and want access to my computer . I have complained to talk talk with no result .

Anonymous
1 Oct 2016

I have been pestered by this number in the last day or two. These are people who claim they are Talk Talk and want me to allow them access to my computer so they can infect it. They have been calling on different numbers for over a year. I always know when I get another of their calls because the line is indistinct and the voice heavily accented. This time I allowed the man to gabble on for half a minute before I interrupted and told him to stop talking. He was reluctant to do so, but after I had interrupted another couple of times and told him he was a filthy crook he gave up and rang off. When I am not as busy as I am now I sometimes play along with them for much longer to waste as much of their time as possible. They get very frustrated. I habitually look up these numbers on other sites. One tells me it has had 34 complaints about this number in three days. Another told me it was the customer services number for Bajaj Finance India. I do not know what to make of that. Have the crooks slipped up this time?

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What happened?

Signal summary for +44 203 040 506 0

+44 203 040 506 0 belongs to the 203 prefix and is classified as Scam. This page combines no approved reports and 6 public comments to explain the risk level.

Frequently asked questions

Who calls from +44 203 040 506 0?
+44 203 040 506 0 is a phone number with the 203 prefix in United Kingdom. It has been reported 6 times by the community as a possible unwanted call. Check the comments to find out who might be behind this call.
Is +44 203 040 506 0 a spam number?
According to the community, +44 203 040 506 0 has 6 reports, which suggests it is likely spam. Check the risk score and comments for details.
Is it safe to call +44 203 040 506 0 back?
If you don't recognise the number and it has negative reports, it's best not to call +44 203 040 506 0 back. Avoid sharing personal or banking details with unknown numbers.
How can I block +44 203 040 506 0?
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 +44 203 040 506 0.
Where can I report a suspicious call?
You can report +44 203 040 506 0 directly on this page using the report button. Your contribution helps other users identify unwanted calls.