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Verify Supported Languages

A verification message's locale will automatically resolve based on the country code of the phone number provided and use English as a fallback language. Using automatic resolution is highly recommended. See a list of phone number country code to language mappings here. If a language override is still required, you can use the locale parameter.

We support the format country-region as described in IETF's BPC 47 for the languages listed below. If an unsupported override locale is given, a 404 error will be returned. In that case, we recommend that you retry the request without the locale parameter to implement a fallback to the country code's default language or English.

Supported languages include:

Name Language Tag
Afrikaans af
Arabic ar
Catalan ca
Chinese (Simplified using mainland terms) zh
Chinese (Simplified using mainland terms) zh-CN
Chinese (Simplified using Hong Kong terms) zh-HK
Croatian hr
Czech cs
Danish da
Dutch nl
English (American) en
English (British) en-GB
Estonian et
Finnish fi
French fr
German de
Greek el
Hebrew he
Hindi hi
Hungarian hu
Indonesian id
Italian it
Japanese ja
Kannada kn
Korean ko
Lithuanian lt
Malay ms
Marathi mr
Norwegian nb
Polish pl
Portuguese - Brazil pt-BR
Portuguese pt
Romanian ro
Russian ru
Slovak sk
Spanish es
Swedish sv
Tagalog tl
Telugu te
Thai th
Turkish tr
Ukrainian (SMS only) uk
Vietnamese vi

SMS messages sent with Programmable Messaging, Verify, and Authy are priced per message segment.

Messages sent in certain language locales, including pt, pt_BR, cs, and el or in non-GSM characters may be split into multiple message segments. You can check how many message segments your message will use with the Messaging Segment Calculator tool.

Learn more about how to limit message segments in our developer best practices.

Here's a basic select implementation in JavaScript:

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Need some help?

We all do sometimes; code is hard. Get help now from our support team, or lean on the wisdom of the crowd by visiting Twilio's Stack Overflow Collective or browsing the Twilio tag on Stack Overflow.


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