Unknown Caller
4 months ago
amazon Prime-style calls. I would not press any options and would check Amazon directly through my account.
Community overview
Community rating:
Mixed
4 user reports
First reported 24 Aug 2015
·
Last reported
4 months
ago
About this number
Number formats
- UK format: 0345 603 2821
- International: +44 345 603 2821
Number details
- Number type: Non-geographic number
- Number range allocated to: BT
Recent activity
UK visits
User Reports
Last 30 days: 23 UK visits and 0 public reports.
Reported categories
Based on 4 public user reports
Unknown Caller
75% (3)
Legitimate
25% (1)
User Reports (4)
Legitimate
06 Aug 2025
This is HSBC as my sister works there and called from there!
Unknown Caller
Liselotte
04 Nov 2015
This is NOT HSBC!!! I contacted HSBC from their website (via webchat) this evening and had it confirmed by a representative that this is fraudulent and possibly connected to other service providers (Vodafone etc) being compromised. The email was supposedly from my local branch! Share NO information with them. Report any calls and/or emails to the HSBC Customer Care team. (I've left this comment on multiple sites because the people calling are also apparently leaving comments, saying that it's a legit number. Contact HSBC first before responding to this number, or to emails.)
Reported caller:
un-HSBC
Unknown Caller
Taz
24 Aug 2015
I don't know who it was
Reported caller:
?
Report this number: 0345 603 2821
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 0345 603 2821 and tap the info icon (i)
- Scroll down and tap Block this Caller
- Confirm by tapping Block Contact
On Android
- Open the Phone app and tap the 3-dot menu
- Go to Call history or Recents
- Long press on 0345 603 2821
- Select Block number or Block/report spam
On Landline Phones
Several options are available for UK landlines:
- BT Call Protect - free for BT customers
- TalkTalk CallSafe - free for TalkTalk customers
- Call blocking devices like CPR Call Blocker (available on Amazon)
Register with TPS (Telephone Preference Service)
The TPS is a free service for UK consumers that allows you to opt out of unsolicited sales and marketing calls.
Learn more about TPS registration