· Luke Faragher · Mobile Networks
7726: the free number that reports spam texts and scam calls
Forward a scam text to 7726, free on every UK network, and your provider can trace and block the sender. Here is exactly how the reporting service works.
The Blog
The ONSIM blog is our narrative on the mobile industry, mobile tech and points of interest for our customers. We hope you find it useful and informative.
· Luke Faragher · Mobile NetworksHow to Stop Spam Calls in the UK: What Works and What Does Not
A practical guide to stopping spam calls in the UK: TPS, 7726, handset screening, network blocking tools and where to report, from a network founder.
· Luke Faragher · Mobile NetworksNumber spoofing explained: why the number on your screen can lie
Caller display can be faked. What number spoofing is, how CLI really works between networks, what Ofcom is doing, and what to do if your number is spoofed.
· Luke Faragher · ComplianceNR/L3/OPS/301: the rail call recording mandate, explained
Since March 2026, safety-critical mobile calls on Network Rail infrastructure must be recorded - including contractors' phones. What the standard covers and how to comply.
· Luke Faragher · ComplianceDo FCA regulated companies have to record calls?
Some must under SYSC 10A. Most IFAs and insurance or mortgage intermediaries aren't caught by the taping rule at all - but recording is still the pragmatic answer.
· Luke Faragher · ComplianceFCA Market Watch 66 explained: call recording when staff work from anywhere
Market Watch 66 said recording obligations don't stop at the office door - WhatsApp, personal devices and homeworking included. Why it matters more in 2026.