Mobile
07999 Mobile numbers UK
07999 is a UK mobile range. In the latest Ofcom data the 07999 blocks are allocated to Telefonica UK Limited. Calls and texts to 07999 numbers are charged at your standard mobile rate.
All one million 07999 numbers are allocated, the first in 2005. Visitors have checked 221 different 07999 numbers here.
07999 at a glance
- Number type
- UK mobile, standard rate (not premium, not a landline)
- Numbers allocated
- 1,000,000 of 1,000,000 (100%)
- Providers
- O2 (Telefonica UK Limited) 1,000,000 numbers since 2005
- Big four networks
- 100% of allocated numbers (O2)
- First issued
- 12 July 2005
- Newest range
- 12 July 2005
- Location
- None: UK mobile numbers aren't tied to a place
Source: Ofcom numbering data, re-imported weekly.
What it costs to call an 07999 number
Standard mobile rate, usually inside call bundles.
- From a mobile
- Normally in inclusive minutes; 3p to 65p a minute outside them
- From a landline
- Often included; otherwise typically 10p to 20p a minute plus a set-up fee (usually 23p)
Source: Ofcom call costs guide (updated 31 January 2025). Ofcom treats these as indicative; your provider sets the final price.
What people check and report about 07999 numbers
From searches in our lookup form since 13 May 2026 and the verdicts and reports visitors left. A check means someone typed the number in, usually after a missed call.
- Checks
- 248
- Different numbers checked
- 221
- Different people checking
- 232
That makes 07999 numbers the 22nd most-checked of the 592 mobile blocks people have looked up here.
By day of the week
Busiest: Thursday (20% of checks)
By hour (UK time)
Busiest: 1pm–2pm; the three busiest hours hold 38% of checks
Caller verdicts on 07999 numbers: 5
Scam 60% (3) · Nuisance 20% (1) · Safe 20% (1)
Community reports: bank impersonation (1).
Latest comments
“i was meant to purches something of them and they wanted payment first so i did then they have blocked me”
Scam · 07999 643800 · 21 Oct 2026
Recent community reports on 07999 numbers
- clear junction limited
07999 643800 · bank impersonation · 21 Oct 2026
Most-reported and most-checked 07999 numbers
| Number | Verdicts | Reports | People checking |
|---|---|---|---|
| 07999 643800 | 1 scam | 1 | 1 |
| 07999 169336 | 1 scam | — | 2 |
| 07999 031214 | 1 scam | — | 1 |
| 07999 076241 | 1 nuisance | — | 1 |
| 07999 245097 | 1 safe | — | 1 |
If a 07999 number called you
Reports here are mostly about bank impersonation, so treat unexpected calls as possible scams.
- 1
Bank calls: use 159
Hang up and dial 159 from a phone the caller hasn't just used. It connects you to most UK banks' real fraud lines. Your bank will never ask you to move money to a 'safe account'.
- 2
Call back on a number you trust
If a caller says they're your bank, HMRC, a courier or a council, hang up and ring the organisation on the number from its website or your statement, never the number that called you. Caller ID can be faked.
- 3
Forward it to 7726
On a mobile, copy the caller's number from your recent calls and text it to 7726 (it spells SPAM). Scam texts can be forwarded to 7726 as they are. It's free, and your network uses the reports to investigate and block numbers.
- 4
If you lost money or shared details
Call your bank on the number on your card (or 159 to reach most UK banks safely), then report it to Report Fraud online or on 0300 123 2040. Report Fraud replaced Action Fraud on 4 December 2025 for England, Wales and Northern Ireland; in Scotland call Police Scotland on 101.
Who owns a 07999 number?
07999 is not an area code: it is a slice of the national 07 mobile range that Ofcom hands to providers in blocks. The largest holder of 07999 numbers is O2 (Telefonica UK Limited). A number can be ported to another network while keeping its digits, so the holder is the original provider rather than necessarily today’s. The person behind a number isn’t public: no legitimate free service can name a stranger from their mobile number. See UK mobile networks by prefix for how blocks are shared out.
Ranges starting with 0799910 on Ofcom's register
| Prefix | Status | Range holder | Allocated |
|---|---|---|---|
| +44 79990 | Allocated | Telefonica UK Limited | 12 July 2005 |
| +44 79991 | Allocated | Telefonica UK Limited | 12 July 2005 |
| +44 79992 | Allocated | Telefonica UK Limited | 12 July 2005 |
| +44 79993 | Allocated | Telefonica UK Limited | 12 July 2005 |
| +44 79994 | Allocated | Telefonica UK Limited | 12 July 2005 |
| +44 79995 | Allocated | Telefonica UK Limited | 12 July 2005 |
| +44 79996 | Allocated | Telefonica UK Limited | 12 July 2005 |
| +44 79997 | Allocated | Telefonica UK Limited | 12 July 2005 |
| +44 79998 | Allocated | Telefonica UK Limited | 12 July 2005 |
| +44 79999 | Allocated | Telefonica UK Limited | 12 July 2005 |
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- 07 MobileAll UK mobile blocks
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- 0843 Service rate
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- 0345 vs 0800: which is cheaper to call?Cornerstone guide
FAQs about 07999
Which network are 07999 numbers on?
Ofcom has allocated 1,000,000 of the million 07999 numbers (100%) to 1 provider: O2 (Telefonica UK Limited) (1,000,000). The four big networks hold 100% of the allocated numbers. A number can be ported, so its current network may differ.
When were 07999 numbers first issued?
The oldest allocation still on Ofcom's register for 07999 dates from 12 July 2005.
Can I find out who owns a 07999 number?
Ofcom's register names the provider behind each 07999 range, not the person using a number, and UK mobile numbers aren't in any public directory. Enter the full number above to see its range holder and any verdicts or reports about that exact number.
Are 07999 numbers scams?
Visitors have checked 221 different 07999 numbers here 248 times since May 2026. They left 5 verdicts: 3 scam, 1 nuisance, 1 safe, so most say scam.
What does it cost to call a 07999 number?
It's a standard UK mobile number: calls are normally in inclusive minutes, and Ofcom's call costs guide puts calls outside a bundle at 3p to 65p a minute from a mobile and typically 10p to 20p a minute from a landline.
How do I report a 07999 number?
Copy the number from your recent calls and text it to 7726 (free); forward scam texts to 7726 too. If you lost money, call your bank and report it to Report Fraud on 0300 123 2040 (Police Scotland on 101 in Scotland). Register with the Telephone Preference Service to cut sales calls.