- Prefix
07021- Number type
- Personal numbering (070)
- Format
07021 XXXXXX- From abroad
+44 7021 XXXXXX- Ofcom blocks in range
- 46
- Blocks in service
- 14
- Range holders
- 8
What are 07021 numbers?
Numbers starting 07021 are UK personal numbering (070)
numbers under Ofcom’s
070 personal numbers range.
070 numbers are 'follow-me' personal numbers, NOT mobiles, and can be expensive to call - a common nuisance-call disguise.
Who holds 07021 ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| A2B Telecom Limited | 3 | 07021 74XXXX |
| Business Broadcast Communications Limited | 2 | 07021 59XXXX |
| Phone Co-Op Numbering Limited | 2 | 07021 21XXXX |
| Sound Advertising Ltd | 2 | 07021 20XXXX |
| Swiftnet Limited | 2 | 07021 0XXXXX |
| Daisy Communications Ltd | 1 | 07021 3XXXXX |
| Relax Telecom Limited | 1 | 07021 77XXXX |
| TalkTalk Communications Limited | 1 | 07021 1XXXXX |
070 personal numbers look like mobiles but are not: they are ‘follow-me’ redirection services that can cost far more to call and are a well-known nuisance- and scam-call disguise. Treat unexpected calls from 07021 numbers with real caution and check the cost before ringing back.
Had a call or text from an 07021 number?
Unexpected calls and texts from unfamiliar personal numbers are a common scam pattern — missed-call (‘Wangiri’) baiting, fake delivery texts and bank-impersonation calls all use them. Don’t ring back numbers you don’t recognise without checking first. Our plain-English guide covers what to do: Who called me from an 070 number?
Check a specific 07021 number
Paste the full number into the checker above to see its range holder and allocation status from this week’s Ofcom data — free, no sign-up.
Run mobiles for a business? See our business mobile network comparison or get a quote.