Messaging Appropriate Use Guidelines (AUP)


Molly Katolas


Bandwidth’s Acceptable Use Policy (AUP) describes actions that are not permitted using Bandwidth services. Bandwidth Terms of Service (ToS) describes the agreement between you and Bandwidth regarding the use of Bandwidth services. Bandwidth reserves the right to suspend or close any account if the user violates our Acceptable Use Policy or Terms of Service.

Below is a sample of what practices are not allowed when sending and receiving SMS messages using Bandwidth’s messaging service. You can look at the full AUP as well as report any unwanted calls by visiting our legal page here.

Mass Marketing

Mobile carriers do not allow marketing SMS messages, whether solicited or not, to be sent on long codes (10-digit numbers). Marketing messages may only be sent using short-codes (special 5 or 6-digit numbers.

Harassing or Abusive Messages

Sending threats or unwanted messages to a single number without the recipient’s permission is restricted. You are responsible for ensuring that the users of your application do not send harassing or abusive messages.

Engaging in fraud, phishing or sending of sensitive data

Sending messages with fraudulent information or phishing to request confidential information from subscribers is not allowed.


Spoofing the SenderID or otherwise attempting to mislead message recipients as to who is sending the SMS message is not allowed. Messages that originate from the Bandwidth platform must be sent from valid Bandwidth numbers that are assigned to the customer’s account.

Unsolicited Messages

SMS messages should only be sent to recipients who have opted for your service and/or are expecting communication from you. Bandwidth and other up-stream carriers actively monitor for this kind of activity. Bandwidth reserves the right to block the phone number or suspend your account if customer abuse is reported.

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