Menu

Expand
Rate this page:

Error 21714

Product: Programmable SMS

ERROR - 21714

Messaging Service Number Pool size limit reached

You have attempted to add a Twilio phone number or short code to your Messaging Service Number Pool, but you are already at the limit of phone numbers. By default, a Messaging Service can contain up to a total of 400 Twilio phone numbers and short codes.

Possible Causes

  • Your Messaging Service number pool is already full (default: 400 numbers)

Possible Solutions

  • If you are sending to the United States and Canada, use a Toll-Free or short code number with higher message throughput (MPS), instead of adding more local numbers. Most mobile carriers in the US and Canada do not not permit Application-to-Person (A2P) messaging via long codes, so there is a high risk of carrier filtering when sending this type of traffic via long code.
  • If you are sending to other countries, you may be eligible to have your Number Pool size limit increased. Please submit a ticket with a description of your use case and why you need a higher number pool size limit. These requests will be reviewed by our Messaging team.
Rate this page:

Thank you for your feedback!

We are always striving to improve our documentation quality, and your feedback is valuable to us. How could this documentation serve you better?

Sending your feedback...
🎉 Thank you for your feedback!
Something went wrong. Please try again.

Thanks for your feedback!

Refer us and get $10 in 3 simple steps!

Step 1

Get link

Get a free personal referral link here

Step 2

Give $10

Your user signs up and upgrade using link

Step 3

Get $10

1,250 free SMSes
OR 1,000 free voice mins
OR 12,000 chats
OR more