Tools

Four free browser tools for phone numbers and telecom: WhatsApp wa.me link builder, E.164 phone parser, MCC/MNC explorer, voice-agent latency benchmark.

• WhatsApp wa.me link generator — prefilled text deep links | SMS-24
  Convert any phone number into a WhatsApp wa.me deep link with optional prefilled text. Free, no signup, mobile and desktop friendly.
• E.164 phone parser — Validate, normalize and lookup any phone | SMS-24
  Paste any phone number in any format. Get parsed E.164, country code, line type (mobile / fixed / VOIP), carrier guess, and validation result. Free, no signup.
• MCC/MNC operator database explorer — search by carrier or country | SMS-24
  Searchable browser over every Mobile Country Code + Mobile Network Code pair worldwide. Filter by operator, country, or MCC+MNC. Free, no signup.
• Voice agent latency benchmark — SMS-24 vs Vapi, Retell, Bland | SMS-24
  Side-by-side first-byte latency for SMS-24 voice agent (cascade and realtime) vs Vapi, Retell and Bland. Refreshed weekly from our internal benchmark harness.