020 3299 9555 Positive Who called me from this phone number?

London • Gamma Telecom Holdings Limited
This number is a landline operated by Gamma Telecom Holdings Limited and located in London, England. The overall user rating for this number is Positive. The number 02032999555 has been searched 728 times, with 5 user comments helping to identify the caller's intent.
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At a glance

Community signals

  • Community rating: Positive
  • User reports: 5 user reports
  • Searches: 728
  • Last reported: 14 days ago
  • First reported: about 2 months ago
  • Typical call time: before 2pm (56% of calls)

Number profile

  • UK format: 020 3299 9555
  • International: +442032999555
  • Number type: Landline
  • Carrier: Gamma Telecom Holdings Limited
  • Area: London
  • Area code: 020
  • Trending since: 19 May 2026

User Reports (5)

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

Legitimate
14 days ago

Rang off before I got to it. Within a few minutes I received a text message from King's with appt, so pretty sure it was King's.

Caller: King's college hospital london
Legitimate
21 days ago

Kings College Hospital - Legitimate

Legitimate
26 days ago

He confirmed my surname, asked me to confirm my first name, and then said he was calling from King's College Hospital to remind me of my appointment next week Friday (I had previously received a letter telling me that my appointment had been changed). This is the first time they contacted me through this specific number; King's College Hospital often contacts me through other numbers that also begin with "020 3299".

Caller: Christian from King's College Hospital
Legitimate
1 month ago

This was Kings College Hospital

Unknown Caller
2 months ago

Ping call

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What type of call was it?

Reported locations

Reported from 21 UK cities

Brockley, Brixton Hill, Canning Town, Shirley, London (Shadwell), Manchester, Bexleyheath, Harrow, Acton, Godalming, Dersingham, Huddersfield, Orpington, Camberwell, Lancaster, Henlade, King's Cross, Dickens Heath, Solihull, Romford, Welling

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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 3299 9555 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 3299 9555
  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)

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Call Costs

Calling 02032999555 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 02032999555 directly.

International callers should dial +44 20 3299 9555 or 0044 20 3299 9555. No leading zero is required when dialling abroad, e.g., +44(0)2032999555.

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