02033 numbers in London
Numbers beginning 02033 are part of the London dialling area, whose area code is 020. Ofcom’s numbering data lists 100 number ranges starting 02033, allocated to 42 providers. The largest holder is Gamma Telecom Holdings Limited, with 14% of them.
Who were 02033 ranges given to?
Providers Ofcom allocated these number ranges to.
- Gamma Telecom Holdings Limited14 ranges
- BT12 ranges
- Not allocated to a provider11 ranges
- Colt Technology Services9 ranges
- Verizon UK Limited7 ranges
- Vodafone Ltd (C&W)3 ranges
- Lumen Technologies UK Limited3 ranges
- Sky UK Limited2 ranges
- Resilient Limited2 ranges
- Virgin Media Limited2 ranges
- TalkTalk Communications Limited2 ranges
- Magrathea Telecommunications Limited2 ranges
+ 31 more
Range status
How Ofcom lists the ranges starting 02033.
Allocations by year
Explore by the next digit
Each block below starts 02033. Pick one to narrow it down.
What a 02033 number tells you
What it is
Ordinary landline numbers tied to a place. The area code tells you which dialling area the number was issued for – 0161 is Manchester, 020 is London, 01388 is Bishop Auckland.
What it costs
Charged as a normal UK call and usually included in landline and mobile allowances.
Watch out for
A local-looking number feels familiar, which is exactly why scammers spoof them. A local area code is not proof the caller is local.
02033 numbers: common questions
Where is the 020 area code?
020 is the UK dialling code for London. Calls from a 020 number were made from a phone line issued for that area – although caller ID can be faked, so a local code is not proof the caller is local.
Who owns 02033 numbers?
Ofcom allocated the ranges starting 02033 to Gamma Telecom Holdings Limited, BT, Colt Technology Services and others. Numbers can be moved between providers, so this shows who the range was originally given to – not who is using a particular number today.
How do I call a 02033 number from abroad?
Replace the leading 0 with +44. For example, a number starting 020 becomes +44 20 followed by the rest of the number.
How much does it cost to call a 02033 number?
Charged as a normal UK call and usually included in landline and mobile allowances.
Is a call from a 02033 number a scam?
A local-looking number feels familiar, which is exactly why scammers spoof them. A local area code is not proof the caller is local. Check the full number on Who’s Calling to see if it belongs to a verified business and what other people have reported.
Did a 02033 number call you?
Check the full number to see if it belongs to a verified UK business and what other people have reported.
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