Tools
Seven free browser tools for phone numbers and telecom: WhatsApp wa.me and Telegram t.me link builders, free HLR/carrier check, SMS segment counter, E.164 phone parser, MCC/MNC explorer, voice-agent latency benchmark.
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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.
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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.
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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.
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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.
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SMS character counter & segment calculator
Count SMS segments and cost. Detects GSM-7 vs UCS-2 encoding and shows exactly which characters force the expensive one.
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Telegram t.me link generator — deep links & share URLs | SMS-24
Turn any Telegram username or phone number into a t.me link, tg:// deep link and share-URL with prefilled text. Free, no signup, works on mobile and desktop.
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Free HLR lookup & carrier check — is this number active? | SMS-24
Free phone number check in your browser: E.164 validation, country by dial code, carrier candidates by MCC/MNC. Sign up for a live HLR query — active, ported, reachable.