08003 freephone numbers
Ofcom’s numbering data lists 811 number ranges starting 08003, allocated to 33 providers. The largest holder is BT, with 43% of them. Numbers paid for by the organisation you are calling.
Who were 08003 ranges given to?
Providers Ofcom allocated these number ranges to.
- Not allocated to a provider396 ranges
- BT352 ranges
- Colt Technology Services12 ranges
- Transaction Network Services (UK) Limited6 ranges
- TalkTalk Communications Limited4 ranges
- Vodafone Ltd (C&W)4 ranges
- GCI Network Solutions Limited3 ranges
- Datazero Ltd3 ranges
- Commi Holdings Limited3 ranges
- TTNC Limited3 ranges
- Virgin Media Limited2 ranges
- Premier Voicemail Ltd1 range
+ 22 more
Range status
How Ofcom lists the ranges starting 08003.
Allocations by year
Explore by the next digit
Each block below starts 08003. Pick one to narrow it down.
What a 08003 number tells you
What it is
Numbers paid for by the organisation you are calling.
What it costs
Free to call from UK landlines and mobiles since July 2015.
Watch out for
Freephone numbers are easy to spoof on caller ID. A genuine 0800 number calling you is not proof the caller is genuine.
08003 numbers: common questions
Who owns 08003 numbers?
Ofcom allocated the ranges starting 08003 to BT, Colt Technology Services, Transaction Network Services (UK) Limited 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 08003 number from abroad?
Replace the leading 0 with +44. For example, a number starting 08003 becomes +44 8003 followed by the rest of the number. Some freephone, service-charge and premium numbers cannot be reached from outside the UK.
How much does it cost to call a 08003 number?
Free to call from UK landlines and mobiles since July 2015.
Is a call from a 08003 number a scam?
Freephone numbers are easy to spoof on caller ID. A genuine 0800 number calling you is not proof the caller is genuine. 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 08003 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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