01740 477002
Spam3 or 4 days of constant calls from this number. Answered once and caller hung up.
1 report
• Last report 26 minutes ago
This number is a landline operated by Simwood eSMS Limited and located in Kinrossie, UK. The overall user rating for this number is Neutral. The number 01821451021 has been searched 188 times, with 2 user comments helping to identify the caller's intent.
Your comment helps others identify this number. Thank you for contributing!
At a glance
Community signals
- Community rating: Neutral
- User reports: 2 user reports
- Searches: 188
- Last reported: 12 months ago
- First reported: 12 months ago
- Typical call time: before 10am (91% of calls)
Number profile
- UK format: 01821 451021
- International: +441821451021
- Number type: Landline
- Carrier: Simwood eSMS Limited
- Area: Kinrossie
- Area code: 01821
User Reports (2)
Your reports help others decide whether to answer calls from this number. Share your experience to help the community!
Unknown Caller
31 Jul 2025
Phone flagged as potential fraud so did not answer. No voicemail left
Scam/Fraud
31 Jul 2025
My phone silences numbers but I get around 3 scam calls a day so I would put this in the scam/fraud category.. I block all these unknown numbers
Reported locations
Reported from 21 UK cities
Kennington, London, Arnold, Stanford-le-Hope, Cardiff, Luton, Saint Andrews Quay, Larne, Manchester, Hackney, West Wickham, Goodmayes, London (Holborn), Keele, Leeds, Southampton, London (Shadwell), Woolwich, Bradford, Huntington, Buriton
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 01821 451021 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 01821 451021
- 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 registrationLatest reports
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Unknown CallerCalled me twice and hang up immediately after first ring.
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020 8089 0481
Unknown CallerAnother silent call and no message left on answer phone again
5 reports
• Last report about 2 hours ago
020 3002 4117
Unknown CallerThey’ve called me 4 times in the last 2 days. Never leave a voicemail but unsure who it is as refuse to answer it.
3 reports
• Last report about 2 hours ago
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Call Costs
Calling 01821451021 from a landline may cost up to 16p per minute. Many providers charge a 23p call set-up fee. Call packages often include these types of calls. You might not incur additional charges for calling this number, depending on your provider.
Dialling Instructions
Local UK callers can dial 01821451021 directly.
International callers should dial +44 1821 451021 or 0044 1821 451021. No leading zero is required when dialling abroad, e.g., +44(0)1821451021.