020 3504 5786 Negative Who called me from this phone number?

London • Core Telecom Limited
This number is a landline operated by Core Telecom Limited and located in London, England. The overall user rating for this number is Negative. The number 02035045786 has been searched 200 times, with 11 user comments helping to identify the caller's intent.
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At a glance

Community signals

  • Community rating: Negative
  • User reports: 11 user reports
  • Searches: 200
  • Last reported: about 2 months ago
  • First reported: about 2 months ago
  • Typical call time: before 10am (91% of calls)

Number profile

  • UK format: 020 3504 5786
  • International: +442035045786
  • Number type: Landline
  • Carrier: Core Telecom Limited
  • Area: London
  • Area code: 020

User Reports (11)

Your reports help others decide whether to answer calls from this number. Share your experience to help the community!

Scam/Fraud
2 months ago

Unknown number rang so trying a new tack, ignore it, if it’s important they will leave a message. They didn’t. TPS only works with trustworthy people who observe the rules. DON’T INTERACT, TELL THEM NOTHING. I don’t answer unknown numbers as now they can record your voice for future scams. BT Call Protect showed “Nuisance Call”

Caller: local Energy Advisor
Unknown Caller
2 months ago

No message left on answer phone

Scam/Fraud
2 months ago

The usual digital fake Joan said she was my energy advisor ... so click, brr. She must have so many virtual telephone numbers, it's a shame she doesnt explode.

Spam
2 months ago

Rang me - I didn't pick up - rang off after 1.5x which is the normal time for Spammers and Fraudsters - they get paid if you answer I guess, hence the repeat calls. Sometimes you get an AI Robot.

Unknown Caller
2 months ago

Same, no message left.

Unknown Caller
2 months ago

No one spoke. Waited a few seconds then it cut off.

Caller: GE
Unknown Caller
2 months ago

Said she was from an energy company and asked whether I had an inspection in my actic in the last eighteen months. Told her I lived in a flat and that she got wrong number. She disconnected the call.

Unknown Caller
2 months ago

No one spoke. Waited a few seconds then it cut off

Spam
2 months ago

Called my landline. Caller said 'hello I'm Jo, energy advisor for your area. Are you the homeowner?...' - apparently trying to sell me insulation for my house. She's called numerous times before (from different numbers, I think) and eventually after I complained she disappeared. Now she's back. I asked her to take my number of her database. Whether that happens is anyone's guess. I've blocked the number she called from, but there are probably numerous numbers on their files!

Caller: 'Jo'
Unknown Caller
2 months ago

Unrecognised, no voicemail left.

Unknown Caller
2 months ago

As I did not recognise the number I allowed the call to go through to my answering machine, but whoever called did not leaver a message.

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What type of call was it?

Reported locations

Reported from 21 UK cities

Blackburn, Kidderminster, London, Bellshill, Stoke Ferry, Crewe, Stanford-le-Hope, Liverpool, Terrington St Clement, Knowsley, Manchester, Horwich, Milton Keynes, Mochdre, Penmaenmawr, Rochdale, London (Paddington), Shepperton, Madeley, Camberwell, Downham Market

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How to Block This Number

On iPhone

  1. Open the Phone app and go to Recents
  2. Find the number 020 3504 5786 and tap the info icon (i)
  3. Scroll down and tap Block this Caller
  4. Confirm by tapping Block Contact

On Android

  1. Open the Phone app and tap the 3-dot menu
  2. Go to Call history or Recents
  3. Long press on 020 3504 5786
  4. 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

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Call Costs

Calling 02035045786 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 02035045786 directly.

International callers should dial +44 20 3504 5786 or 0044 20 3504 5786. No leading zero is required when dialling abroad, e.g., +44(0)2035045786.

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