Short Code

Whether it’s for SMS marketing, a vanity number or some other type of text messaging, Telnyx’s expert team can help you set up text short codes that get results at high volume.

Man receives text from short code number
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Short code messaging service

Reach users at scale wherever they are in the world—set up numbers in the Short Code Registry and send messages through Telnyx. Get a vanity number or a memorable short code number—both are ideal for SMS marketing, notifications and even 2-way conversations.


High volume, recognizable short code numbers

Send from a 5-digit recognizable code so customers will know it’s you. Extremely high throughput limits and lower ongoing compliance thresholds make it easy to scale.

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    High volume limits for SMS API

    SMS short code is the highest volume number type, supporting up to 100 message parts per second (360,000 per hour).

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    Recognizable short code texting numbers

    Create or reinforce a brand your customers know and love. Get an automatically-assigned code or request a special one.

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    Delivery receipts that you can trust

    Unlike number types that only support carrier network receipts, short code also includes handset receipts, so you can be confident your message was delivered.

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    Low-maintenance compliance

    After completing a comprehensive initial vetting process, ongoing compliance requirements for short code are lower than other number types, reducing delivery and compliance issues.

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    Automatic opt-outs

    If a customer replies with a stop word (e.g. “STOP”), Telnyx will automatically unsubscribe them from future sends from that number.

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    Intelligent message encoding

    We support any character set and language type. Our system automatically chooses the most compact encoding possible, minimizing cost per send.


Ultra-high volume

~60,000 messages per minute—30x the typical limit of other number types


Higher average volume limit per number

A number customers trust

A recognizable sender ID that increases your credibility to recipients


Digit, memorable number

SMS short codes in dashboard

Start building

Our code is your code.

curl -X POST \
  --header "Content-Type: application/json" \
  --header "Accept: application/json" \
  --header "Authorization: Bearer YOUR_API_KEY" \
  --data '{
    "from": "+18665552368",
    "to": "+18665552367",
    "text": "Hello, World!"
  }' \
  • Icon Resources Article

    2022 guide to political text messaging

    Many political and non-profit organizations use short code for high volume campaigns. Check out our comprehensive guide to this topic.

  • Icon Resources Docs

    Short code messaging API specifications

    Check out our developer docs for connecting to the Telnyx Messaging API using short codes.

  • Icon Resources Article

    SMS marketing guide for short code campaigns

    Compliance for SMS marketing is a major concern for today’s marketers. This article outlines some of the requirements for compliance when conducting SMS campaigns.

Short Code pricing

Starting at $1,000/mo—an industry-standard maintenance fee—plus per-message rates which include automatic volume discounts, our team is committed to providing you with competitive pricing.

Starting at:


Per message

Short code use cases

The communication with the Telnyx support team was much faster and more transparent than we’d seen with other providers,” he says, “and we didn’t have to pay extra for this either.
Customer Quote Fetch

Boone Putney

CTO, Fetch


In the U.S., short codes can be leased for 3, 6 or 12 month terms. Dedicated short codes cost $1,000 per month, and vanity short codes cost $2,000 per month. You can see detailed pricing for short code SMS here.