Enable Alphanumeric Sender ID on a Number

Stay compliant1 min readUpdated 2026-03-12

Enable Alphanumeric Sender ID on a Number

Apply an Alphanumeric Sender ID to a specific JustCall number, so only messages from that number display your brand name.


How to Enable Per Number

  1. Go to SettingsPhone Numbers.
  2. Select the number you want to configure.
  3. Click SMS Settings or the gear icon.
  4. Under Alphanumeric Sender ID, toggle it on.
  5. Enter the Sender ID name (up to 11 characters).
  6. Click Save.

Messages sent from this number to supported countries will display the Sender ID. Messages to the US, Canada, or unsupported countries continue to show the phone number.


Per-Number vs Account-Wide

ScopeUse Case
Account-wideSame brand name for all numbers
Per-numberDifferent Sender IDs for different departments or brands

You can mix both — set an account-wide default and override it on specific numbers.


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