07577 006415
Unknown Callercalled my mobile at 14.10 - left no message
1 report
• Last report 2 minutes ago
This number is a landline operated by Colt Technology Services and located in Norwich, UK. The overall user rating for this number is Negative. The number 01603804986 has been searched 328 times, with 8 user comments helping to identify the caller's intent.
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At a glance
Community signals
- User reports: 8 user reports
- Searches: 328
- Last reported: about 1 year ago
- First reported: about 1 year ago
- Typical call time: before 3pm (96% of calls)
Number profile
- UK format: 01603 804986
- International: +441603804986
- Number type: Landline
- Carrier: Colt Technology Services
- Area: Norwich
- Area code: 01603
User Reports (8)
Your reports help others decide whether to answer calls from this number. Share your experience to help the community!
Unknown Caller
03 Mar 2025
I let my phone ring without answering it if it isn't on my contact list which I do all the time. This number 01603804986 and if it was genuine then I would expect them to leave a message. A few minutes later I had a scam text from a fake Royal Mail saying I have a parcel but it couldn't be delivered because the address wasn't complete. That is rubbish and a typical scam as I although I am awaiting a parcel delivery in the next few days, I don't believe this text and so blocked and deleted it. Beware of any unrecognised call or text as if it is important and truthful then they will leave a message on your answering service. Never click on any links whatever you do. I'm not that easily fooled, but some people are.
Scam/Fraud
03 Mar 2025
Said I’m a Tesco mobile customer and issue with my SIM card. Sounded very passive aggressive
Unknown Caller
03 Mar 2025
missed call called them back and they said calling about EE contract, I'm not on EE
Scam/Fraud
03 Mar 2025
saying from O2 that my number is going to be deleted, obviously an asian call centre, when questioned and said I was going to report them they said "are you reporting me to the police", which I said yes. they said ok "have a good day and I hope you die" !
Scam/Fraud
01 Mar 2025
Called to say my Tesco SIM card needs replacing urgently. I’m not with Tesco . Sounded like a scam. Be very careful even talking to them as it may be just your voice they are recording. Take care
Scam/Fraud
01 Mar 2025
Called to tell me that my SIM card was going to be deactivated however was unable to tell me which provider I was with.
Unknown Caller
01 Mar 2025
Left a voicemail before the call cut off, with sounds of a call centre in the background. No actually message left
Reported locations
Reported from 13 UK cities
London, Haringey, Flamstead, Southgate, Sheffield, Rugby, Belfast, Newport, North Shields, Norwich, Milton Keynes, East Ayton, Solihull
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 01603 804986 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 01603 804986
- 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.
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Recommended Guides
Call Costs
Calling 01603804986 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 01603804986 directly.
International callers should dial +44 1603 804986 or 0044 1603 804986. No leading zero is required when dialling abroad, e.g., +44(0)1603804986.