056004 corporate & VoIP numbers
Ofcom’s numbering data lists 10 number ranges starting 056004, allocated to 1 provider. 055 numbers are used for corporate networks; 056 numbers are location-independent numbers often used by internet (VoIP) phone services.
Who were 056004 ranges given to?
Providers Ofcom allocated these number ranges to.
- Not allocated to a provider9 ranges
- BT1 range
Range status
How Ofcom lists the ranges starting 056004.
Explore by the next digit
Each block below starts 056004. Pick one to narrow it down.
What a 056004 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.
056004 numbers: common questions
Who owns 056004 numbers?
Ofcom allocated the ranges starting 056004 to 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 056004 number from abroad?
Replace the leading 0 with +44. For example, a number starting 056004 becomes +44 56004 followed by the rest of the number.
How much does it cost to call a 056004 number?
Costs vary by provider – check your tariff.
Is a call from a 056004 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 056004 number call you?
Check the full number to see if it belongs to a verified UK business and what other people have reported.
UK phone numbers explained → · Let us screen unknown callers →