Telnyx

Carrier-owned communications and AI platform with SMS, voice, WhatsApp, RCS and numbers APIs on its own global network

Telnyx (Telnyx LLC, founded 2009, headquartered at 600 Congress Avenue, Austin, Texas) is a carrier-owned communications and AI platform offering programmable SMS/MMS, RCS, WhatsApp, voice, phone numbers, wireless and AI inference on a privately operated global network. Australian SMS is self-serve pay-as-you-go at a published USD 0.05 per message part with no monthly minimum, using alphanumeric sender IDs, long codes or short codes; alphanumeric IDs must be registered with the ACMA Sender ID Register from 1 July 2026, which Telnyx files on the customer's behalf. Telnyx opened a Sydney office in Martin Place in September 2025 and runs a local PoP and GPUs for voice AI.