Where can I use an alphanumeric sender ID?

The catalogue records alphanumeric support in 237 destinations. Check the sender options and registration requirements for the other 8; availability should not be inferred from the country name alone.

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Where an alphanumeric sender ID does not work

Where it does

The rest of the SMS platform

One API, one set of keys. Explore the other capabilities.

All destinationsCoverage, sender types, and rules for every country Bird reaches.Sender-ID registrationPre-register alphanumeric and dedicated senders where countries require it.Two-wayInbound SMS and conversational replies as HMAC-signed webhooks.RoutingDestination controls, carrier connectivity and reported routing outcomes.

Send branded one-way alerts where supported and fall back to numbers where required.

An alphanumeric sender ID puts your brand name (3 to 11 characters) at the top of login codes, shipping updates, and appointment reminders so recipients recognize the sender immediately. Because alphanumeric senders cannot receive replies and are blocked in number-only markets like the United States and Canada, pair your registered brand name with a verified toll-free number, 10DLC long code, or short code in countries that require a dialable number or two-way conversations.