056033 corporate & VoIP numbers
Ofcom’s numbering data lists 10 number ranges starting 056033, allocated to 2 providers. The largest holder is Colt Technology Services, with 40% of them. 055 numbers are used for corporate networks; 056 numbers are location-independent numbers often used by internet (VoIP) phone services.
Who were 056033 ranges given to?
Providers Ofcom allocated these number ranges to.
- Not allocated to a provider4 ranges
- Colt Technology Services4 ranges
- BT2 ranges
Range status
How Ofcom lists the ranges starting 056033.
Allocations by year
Explore by the next digit
Each block below starts 056033. Pick one to narrow it down.
What a 056033 number tells you
What it is
055 numbers are used for corporate networks; 056 numbers are location-independent numbers often used by internet (VoIP) phone services.
What it costs
Costs vary by provider – check your tariff.
Watch out for
Because they are not tied to a place, these numbers say little about where a caller really is.
056033 numbers: common questions
Who owns 056033 numbers?
Ofcom allocated the ranges starting 056033 to Colt Technology Services, BT. 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 056033 number from abroad?
Replace the leading 0 with +44. For example, a number starting 056033 becomes +44 56033 followed by the rest of the number.
How much does it cost to call a 056033 number?
Costs vary by provider – check your tariff.
Is a call from a 056033 number a scam?
Because they are not tied to a place, these numbers say little about where a caller really is. 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 056033 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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