Paste any phone number in international format (e.g. +447911123456) and this tool identifies the carrier (Vodafone, O2, Verizon, Twilio, Bandwidth, Google Voice, etc.), line type (mobile, landline, VoIP), and country. If your WhatsApp, Telegram, Tinder or Signal verification is failing, this tool tells you whether VoIP line-type is the reason — it usually is. Free, unlimited, no signup. Results are cached for 30 days. For reliable SMS verification, you need a real mobile SIM — VirtualSMS runs physical SIMs across 50+ countries starting at $0.05 per verification.
Phone Carrier + Line-Type Checker
Free lookup for carrier, line type (mobile / landline / VoIP), country and spam risk. Find out why WhatsApp, Telegram or Tinder rejected your number.
Updated:
Get the full carrier intelligence report
Breakdown of common VoIP providers by service rejection rate (Telegram, WhatsApp, Tinder, Uber) + recommended countries per verification target. Free, emailed as PDF.
Why this tool flags VoIP as risky
Consumer platforms block VoIP
WhatsApp, Telegram, Signal, Tinder, Uber, Google, Discord, Snapchat and Instagram all query HLR line-type. VoIP = verification blocked or throttled.
Global coverage, live data
Coverage spans 240+ country codes, including UK (O2, Vodafone, EE, Three), USA (Verizon, AT&T, T-Mobile, plus Bandwidth, Twilio, Plivo), Spain, Germany, India, Brazil, Indonesia.
Real SIM alternative
VirtualSMS runs real carrier SIMs — same line-type mobile networks use. Trusted by WhatsApp + Telegram verification globally. Crypto payments from $2 deposit.
Frequently asked questions
Three things: whether the number is valid (passes E.164 + network reachability), what carrier owns it (Vodafone, O2, Verizon, T-Mobile, Twilio, Bandwidth, Google Voice, etc.), and its line type — mobile, landline, VoIP, toll-free, premium. That combination tells you whether WhatsApp, Telegram, Signal, Uber, Google or Tinder will accept it for verification.
