Required SMS U.S. Phone Number Registration

Dear ProPet Software x Twilio SMS users,

Twilio has informed us that “on August 31, 2023, all A2P messages sent from unregistered ten-digit long code numbers (10DLC) will be fully blocked in the U.S.” Twilio has sent a number of emails to their customers since January 2023 regarding this required change. This means that Twilio will be unable to deliver SMS messages until you have registered your phone number with them and until it has been accepted. 

If you have already registered your phone number with them, please disregard this message and banner.

To complete the A2P 10 DCL Registration, you must complete the following 2 step:

  1. Verify if your number is “Managed by ProPet Software Inc”
    • If so, begin phone number transfer process as outlined below
    • Reconnect ProPet to your number and verify webhook
  2. Complete Twilios A2P 10DCL registration

Step 1: Verify if your number is “Managed by: ProPet Software Inc”

In your Twilio account under your “Active Numbers”, verify if the ”Active Configuration” of the number you are using within ProPet states “Managed By: ProPet Software Inc”. If so, move to the next step. If not, move to Step 2.

a) Transfer the number over to you

We need the following 3 pieces of information to be emailed to support@propetware.com :
1. Phone number to be transferred:


Twilio Console > Active Numbers > the phone number that is”Managed by: ProPet Software”. See image below

Step 1: Verify if your number is “Managed by: ProPet Software Inc”
2. Account SID:


Twilio Dashboard > Account Info > Account SID. See image below

Account SID:
3. Your Email address that was used to create your Twilio account:

This is the email you use to sign into your Twilio account

Once we have this information, we will email Twilio and CC you to transfer the number over to you. You must reply to all to approve the transfer request so Twilio knows you also approve the transfer. They will not complete it without both parties’ consent. 

b) Reconnect ProPet to your number and verify the webhook.

We will send you instructions once the phone number transfer is complete.

Step 2: Complete Twilio’s A2P 10DCL

Twilio’s campaign registration is specific to each facility and your texting needs. As such, Twilio will be best suited to assist in any campagne questions you may have. You can contact Twilio at:  support@twilio.zendesk.com

Please note, once you have completed the campaign registration, due to high demand, Twilio’s verification process could take up to a few weeks. During this wait period, your sent text messages will still be blocked

Further Resources:

You can create a customer alert message to inform your customers that you will not be able to send your usual text messages for the time being and remove it once your registration has been accepted. Please view the customer alert message set up instructions here: https://www.propetware.com/knowledge-base/how-do-i-add-a-customer-alert-message/

Twilio has also provided the following links with information to assist in the process:

For an Overview on the  A2P 10DLC Campaign Registration Process https://www.twilio.com/docs/sms/a2p-10dlc#general-a2p-10dlc-registration-steps

A2P 10DLC Campaign Approval Requirements https://support.twilio.com/hc/en-us/articles/11847054539547-A2P-10DLC-Campaign-Approval-Requirements

Twilio Professional Services for US A2P 10DLC Registrations https://www.twilio.com/blog/twilio-professional-services-for-us-a2p-10dlc-registrations 

To check if you’ve successfully completed the A2P registration https://support.twilio.com/hc/en-us/articles/4418081745179-How-do-I-check-that-I-have-completed-US-A2P-10DLC-registration-

Demo video —> https://www.loom.com/share/ec51138ddfd740fd95e9e58713c70dcc

Walkthroughs of the process to register for A2P 10DLC  https://www.twilio.com/docs/sms/a2p-10dlc#register-for-us-a2p-10dlc-with-twilio 

Direct Brand Sole Proprietor registration steps https://www.twilio.com/docs/sms/a2p-10dlc/direct-sole-proprietor-registration-overview 

Direct Customer Standard and Low-Volume Standard A2P 10DLC registration instructions 

https://www.twilio.com/docs/sms/a2p-10dlc/onboarding 

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6157 Russell Road

Ottawa, Ontario