Published 2026-06-15

The Rise of Caller ID Spoofing in the UK: 2026 Analysis

An in-depth look at how scammers are manipulating caller ID data to impersonate trusted institutions like HMRC, local banks, and the NHS to bypass standard network blocks

The Spoofing Epidemic

Caller ID spoofing has evolved from a niche tactic to the primary vector for financial fraud in the UK. Scammers utilize sophisticated VoIP software to alter the outgoing caller ID, tricking victims and network filters alike.

Most Spoofed Organizations

  • HMRC & Government Services: Accounting for 41% of reported spoofing attempts, usually demanding immediate payment for fabricated tax fraud
  • High Street Banks: 35% of spoofed calls attempt to impersonate banks (e.g., Barclays, NatWest) claiming a compromised account.
  • Delivery Services: 15% involve fake package delivery alerts, exploiting the rise in e-commerce

The Technological Response

Standard UK networks (EE, Vodafone) struggle to block these calls proactively because the numbers appear legitimate. Our unmasking infrastructure bypasses the spoofed metadata by analyzing the true origin of the incoming signal during the conditional routing, allowing users to reveal the actual VoIP node or burner number used by the scammer.

Source: MaskOff UK Internal Data Analytics

Stop Anonymous Calls Now