Editorial team

Daniel Mercer

Verification & Deliverability

Daniel focuses on why a verification code arrives, or doesn't. Most of it comes down to one distinction the industry glosses over: real carrier SIMs return "mobile" in the line-type checks (Twilio Lookup, Telesign PhoneID) that platforms run before they ever send an OTP, while VoIP numbers come back "Non-Fixed VoIP" and get dropped silently. He tracks delivery behaviour across the 2,500+ services VirtualSMS covers, notes when a platform tightens its checks, and writes up what actually changed rather than what a press release claims. When a post here says a number type works on WhatsApp or fails on Binance, it's because the delivery data said so, not because it sounded plausible.

22 articles

Rachel Bennett

Digital Privacy & Fraud Prevention

Rachel writes about keeping your real number off the services that don't need it. Her angle is practical privacy: which signups leak your personal number, how recycled and VoIP numbers get burned and reused, and why a disposable real-carrier number is a cleaner boundary than a second SIM you carry forever. She reads the fraud research (the Princeton recycled-number study is a recurring reference) and turns it into what it means when you actually go to create an account. She's blunt about the trade-offs, including where a cheap free number is fine and where it will get you shadowbanned.

10 articles

James Foster

Developer Relations & API

James covers the developer side: the REST API, the SDKs (npm, PyPI, Packagist, RubyGems, NuGet), and the MCP server that lets AI agents run verification flows without a dashboard. His posts are the ones with actual request and response snippets, webhook payloads, and the auth header you actually need. He cares about the boring parts, idempotency, rate limits, what a 429 means and how to back off, because that's where integrations break in production. If you're wiring VirtualSMS into a signup flow or an agent, his write-ups are meant to get you from "it works in Postman" to "it works at 2am under load".

11 articles

Claire Dawson

International Growth & Business Ops

Claire writes about verification as a cross-border problem: which country's number a service expects, why a German number runs on Telekom or Vodafone and a UK number on O2, and how to match your IP country to your number so a signup reads as consistent instead of suspicious. Her posts lean on coverage across 145+ countries and the per-country carrier detail that decides whether an activation lands. She's less interested in "more countries" as a headline and more in which specific country-service pairing actually completes, the thing most guides skip and most operators learn the expensive way.

25 articles