The Complete 7726 UK Spam Reporting Guide (Updated November 2026)
Learn how the free 7726 (SPAM) shortcode works across all UK mobile networks in November 2026, and how to report private callers by unmasking them first.
What Is 7726?
7726 (which spells SPAM on a standard phone keypad) is a free, industry-wide reporting service operated by all major UK mobile networks in partnership with Ofcom and the National Cyber Security Centre (NCSC). Reporting scam texts and nuisance calls to 7726 helps carriers shut down rogue SIM cards and spoofed VoIP gateways.
Why 7726 Rejects "No Caller ID" Reports
When you report a nuisance call by texting CALL to 7726, the automated system replies asking you to send the exact telephone number that called you. If the scammer or harasser dialed 141 to hide their number, you have nothing to submit—leaving the offender free to keep calling.
Combining OppBlock with 7726
- Decline to Unmask: Reject the incoming anonymous call so OppBlock reveals the real underlying telephone number.
- Copy the Revealed Number: Grab the unmasked digits from your SMS alert or OppBlock live dashboard.
- Text 7726: Send
CALL [Unmasked Number]to 7726 free of charge to trigger a network-level fraud investigation.
Related UK Unmasking Guides: Read our UK MVNO Compatibility Guide (giffgaff, Sky Mobile, iD Mobile, Smarty & Lebara), compare UK TrapCall alternatives, or browse all 2026 UK telecom research reports.
Related Guides
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How to Unmask Private Calls on giffgaff, Sky Mobile, iD Mobile, Smarty & Lebara
Updated November 2026 setup guide for revealing No Caller ID numbers on popular UK MVNO networks including giffgaff, Sky Mobile, iD Mobile, Smarty, and Lebara.
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