Who is calling me
from number

0203 455 9231

Dangerous
Number stats
Users rating: Dangerous
Number linked to:
Number of comments: 16
Last report:
First report:
Number of searches: 545

Stop spam calls permanently

If you've searched for this number, you're not alone. Thousands of nuisance and scam calls are made across the UK every day. While blocking individual numbers can help, scammers often switch numbers frequently.

Phonely's CallGuard technology blocks known scam numbers automatically using our constantly updated scam database. Instead of reacting to every nuisance call, you can stop them before they reach you.

Learn how automatic call blocking works

User comments about this number

There are total of 16 user comments about calls from 0203 455 9231. Last comment has been made . The overall rating for 02034559231 is DangerousRead Disclaimer

reported 0203 455 9231 as Harassing
Persistently calling us on mobile and landline. Difficult to get a word in. Eventually hung up.

reported 0203 455 9231 as Harassing
Same as I call I had last week, but from a different number. Just won’t let you get a word in so I am afraid I am getting to be as rude as the callers and I am putting the phone down and blocking their number, which does no good really as they just use another number another day; it seems to be they call our area on a Wednesday, so maybe I won’t answer the phone on a Wednesday!!

reported 0203 455 9231 as Harassing
Another lying 'Energy efficiency advisor'

reported 0203 455 9231 as Harassing
Energy advisors

reported 0203 455 9231 as Harassing
Did not answer as I didn’t recognise the number.

reported 0203 455 9231 as Dangerous
All the characteristics of a scam call.

reported 0203 455 9231 as Dangerous
Claiming to be loft insulation scam!!

reported 0203 455 9231 as Harassing
Had a call this morning 30.1.2026 about loft insulation, asked for my post code, i didnt tell him. Reading from a script didn't say who they were. Don't enter into a conversation with them. Then I hung up. Scam call

reported 0203 455 9231 as Harassing
Persistent calls from this number - last digit changes

reported 0203 455 9231 as Harassing
Persistent but rang off after challenging questions

reported 0203 455 9231 as Harassing
Rang with no message left at all.

reported 0203 455 9231 as Harassing
Repeated calls from 0203 455 923 numbers - just the final digit changing.

reported 0203 455 9231 as Dangerous
Claimed the property had inadequate loft insulation despite TPS registration. Refused to provide a company name.

reported 0203 455 9231 as Harassing
One of 4 calls about loft insulation surveys. Continually talking over me from a script, not answering when asked to state my postcode area

reported 0203 455 9231 as Dangerous
Scam call about insulation work for loft. Did not provide proof or verification.

reported 0203 455 9231 as Dangerous
LOFT INSULATION SCAMMERS

How to stop nuisance calls in the UK

If you're receiving repeated calls from numbers like this one, there are a few steps you can take to protect yourself:

  • Register with the Telephone Preference Service (TPS)
  • Block nuisance numbers on your phone
  • Avoid returning missed calls from unknown numbers
  • Use a landline service with automatic scam blocking, like Phonely

Read the full guide to stopping nuisance calls

Share your experience

If you received a call from 0203 455 9231 then tell us about it below. Doing so will allow others to further guard themselves against scams and nuisance calls.

To open the comment box, first let us know how you would rate 0203 455 9231.

Looking for a safer home phone?

Traditional landlines were never designed to stop scam callers. New digital landline services use advanced tools such as:

  • Automatic scam number blocking
  • Suspicious call alerts
  • Call recording for safety
  • Trusted person monitoring

Phonely's digital landline was built specifically to protect vulnerable people from nuisance and scam calls. See how Phonely protects your home phone or compare the best digital landline UK.

Check another number

Enter a different number to check.

Latest comments

Latest reports from our community.

07398060586Harassing
01291 200 445Harassing
01543 648 576Dangerous
01253 226 794Dangerous
01543 648 765Dangerous
07391034427Dangerous
01832 430 339Harassing
0203 634 8988Harassing
01291 200 445Harassing
01291 200 445Harassing
01895 911 009Dangerous
01543 648 621Dangerous
01475 268 310Harassing
01583 240 300Dangerous
01583 240 284Dangerous
Worried About Scam Calls? You're Not Alone.

Get our free, easy-read Scam Safety Guide and join thousands of people getting free weekly scam alerts & tips.

Simply enter your name and email below, to get your free guide .

Phonely is trusted by police forces, Trading Standards, Neighbourhood Watch, the Alzheimer’s Association, and has been featured on the BBC.

London PoliceManchester PoliceFriends Against ScamsBBCCrimewatchNeighbourhood Watch
BBC Scam Safe
Dementia Friend
City of London Police
Manchester Police
Cyber Essentials Plus badge
Business Awards 2024