+44 203 311 300 0

Risk level: Low

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

Low
Risk level
Category
0
Spam reports
Last report

AI Analysis

Limited information: Mixed user reports associate this number with both legitimate UK healthcare services (Hammersmith Hospital, Imperial College NHS Trust, St Mary’s Hospital) and potentially fraudulent activities (unsolicited calls, recorded messages from unknown entities like Frederickson International).

Likely purpose: Possible dual use: Legitimate (patient follow-up by NHS hospitals) and potentially fraudulent (unsolicited calls, recorded messages from unknown entities).

Most common user complaints

  • unsolicited calls
  • recorded messages for unknown individuals
Low dangerCautionNHS Hospitals (Hammersmith, Imperial College, St Mary’s), Frederickson International (potencialmente fraudulenta)HealthMissed call

AI analysis: 10 Aug 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 It may contain errors or be out of date, and is not legal advice or a verified accusation against the number's owner.

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

11
Anonymous
1 Jul 2021

It was for follow up blood test after having prostrate cancer.

Anonymous
25 Sept 2020

Imperial College NHS Trust fue reportado como Número fiable con el número 020-33113000

Anonymous
18 Jun 2020

Missed call from trusted source

Anonymous
19 Aug 2019

in my case it was Hammersmith hospital who Are basically in charge of my health so I now take calls from this number ! The rules make them use cloak and dagger hidden number stupidity

Anonymous
9 Jul 2019

Nhs fue reportado como Número fiable con el número 020-33113000

Anonymous
25 Apr 2019

St Mary’s Hospital

Anonymous
22 Oct 2016

Imperial College NHS Trust calling to confirm attendance at hospital the following week. Uses and automated service to confirm you are the person wanted and then gives the information. You are then prompted to accept or reject the appt.

Anonymous
28 Oct 2015

Hammersmith hospital

Anonymous
3 Sept 2015

Hammersmith Hospital

Anonymous
15 Jul 2014

They just keep calling, somehow they have my mobile number and office number. Dozens of calls, I've given up picking up the phone now. I am TPS registered.

Anonymous
20 Apr 2013

Sick of getting calls from this company. I pick up the phone, say nothing, and there is a recorded message which says something like "Frederickson International", asks for someone called Paul W Roberts (who I have never heard of and definitely has nothing to do with me). Recorded voice asks if I am the person to press 1, and if not, press 2. I'm guessing scammers with high rate calls for pressing either these numbers? Had these calls dozens of times even though I'm ex-directory and with the TPS. Have reported them for these calls numerous times, but still nothing happens to stop the calls. According to others, this is just one phone number of many from these clowns

Report this number

What happened?

Signal summary for +44 203 311 300 0

+44 203 311 300 0 belongs to the 203 prefix and is classified as unclassified calls. This page combines no approved reports and 11 public comments to explain the risk level.

Frequently asked questions

Who calls from +44 203 311 300 0?
+44 203 311 300 0 is a phone number with the 203 prefix in United Kingdom. It has no spam reports yet, but you can check other users' comments below. Check the comments to find out who might be behind this call.
Is +44 203 311 300 0 a spam number?
There aren't enough reports yet to confirm whether +44 203 311 300 0 is spam. Check the risk score and the community comments.
Is it safe to call +44 203 311 300 0 back?
If you don't recognise the number and it has negative reports, it's best not to call +44 203 311 300 0 back. Avoid sharing personal or banking details with unknown numbers.
How can I block +44 203 311 300 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 +44 203 311 300 0.
Where can I report a suspicious call?
You can report +44 203 311 300 0 directly on this page using the report button. Your contribution helps other users identify unwanted calls.