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Monitoring as Code: Learn more about the SMS Alert Channel Construct.
The phone numbers used for SMS alerting need to be in E.164 format format. Stick to the following rules and you’ll be fine:
  • Prepend international access codes with a + sign
  • Do not use any white spaces
  • Use up to 15 characters
send monitoring alerts with SMS You can add as many SMS channels as you like. SMS channels aren’t available on the Hobby plan, and SMS sends count against your plan’s monthly SMS quota. See the Pricing page for the limits.

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Supported countries and regions

SMS alerts can only be sent to phone numbers in the following countries. Numbers from other countries are rejected when you create or update the channel.

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SMS alert number and sender ID

SMS alerts will be sent with a sender ID and phone number. The Checkly sender ID is ‘Checkly’. If your carrier does not support sender ID, you will instead see the Checkly SMS alert phone number, +1(814) 250 8623.
For limits and other SMS-related questions, please refer to our Pricing page.