UK-wide 03 numbers

03435 UK-wide numbers

Ofcom’s numbering data lists 100 number ranges starting 03435, allocated to 12 providers. The largest holder is Numbers Telecom Limited, with 8% of them. Non-geographic numbers used by public bodies, charities and businesses that want one number for the whole country. 030 is used by public sector and not-for-profit organisations.

Number type
UK-wide 03 numbers
03
From abroad
+44 3435…
Drop the 0, add +44
Ofcom ranges
100
28 allocated
First allocated
2011
12 providers

Who were 03435 ranges given to?

Providers Ofcom allocated these number ranges to.

  • Not allocated to a provider72 ranges
  • Numbers Telecom Limited8 ranges
  • Invosys Limited5 ranges
  • 24 Seven Communications Limited2 ranges
  • TalkTalk Communications Limited2 ranges
  • Vodafone Ltd (C&W)2 ranges
  • TTNC Limited2 ranges
  • Nuso Cloud UK Limited2 ranges
  • Liquid 11 Limited1 range
  • Telappliant Limited1 range
  • VoiceHost Limited1 range
  • Magrathea Telecommunications Limited1 range

+ 1 more

Range status

How Ofcom lists the ranges starting 03435.

Protected · 72 Allocated · 28

Allocations by year

20112016

What do these statuses mean?

Explore by the next digit

Each block below starts 03435. Pick one to narrow it down.

What a 03435 number tells you

What it is

Non-geographic numbers used by public bodies, charities and businesses that want one number for the whole country. 030 is used by public sector and not-for-profit organisations.

What it costs

Never cost more than calling an 01 or 02 number, and count towards inclusive minutes.

Watch out for

Banks and government departments often use 03 numbers, so scammers spoof them. If a caller asks for security details, hang up and call the number on your card or statement.

The range holder isn’t necessarily the caller. Ofcom gives numbers to providers in blocks, and people and businesses can take their number with them when they switch. To find out who actually called, check the full number.
Questions

03435 numbers: common questions

Who owns 03435 numbers?

Ofcom allocated the ranges starting 03435 to Numbers Telecom Limited, Invosys Limited, 24 Seven Communications 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 03435 number from abroad?

Replace the leading 0 with +44. For example, a number starting 03435 becomes +44 3435 followed by the rest of the number.

How much does it cost to call a 03435 number?

Never cost more than calling an 01 or 02 number, and count towards inclusive minutes.

Is a call from a 03435 number a scam?

Banks and government departments often use 03 numbers, so scammers spoof them. If a caller asks for security details, hang up and call the number on your card or statement. 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 03435 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 →