The following topics are discussed in this guide. Click a topic to skip directly to this information:

• Mexico Short Code Content Restrictions
• Other Mexico Short Code Restrictions
• Mexico Short Code Opt-In Requirements
• Mexico Short Code Opt-Out Requirements

To apply for Mexico Short Code please follow the guidelines here.

Mexico Short Code Content Restrictions

See the table below for the type of content that is or is not allowed in Mexico.

Please also refer to Twilio’s AUP for additional content restriction details. 

Type of Message Content	Allowed	Not Allowed
Adult
Alerts*
Illegal products or services
Malware
Marketing*
Notifications*
OTP*
Political causes / politicians
Promotions*
Religious
Sensitive data (end user)
Sexual content (explicit)
Spam / phishing**
Special offers*
Third-party rights violations (copyrights, registered trademarks)

* With prior operator approval. Submit content for approval that includes service specs such as a description of the service, content samples of the body text, and possible URLs you will use.

** Operators pay special attention to abuse-related content like spam and phishing. In most cases, use of such content automatically leads to termination of the service agreement and disconnection of the short code(s) involved. Operators in Mexico hold ownership for content and filtering upon their own criteria of compliance.

Other Mexico Short Code Restrictions

 

Mexico Short Code Opt-In Requirements

Opt-ins must be handled by the customer. Opt-in process is not regulated, but must be very well documented on the customer side in Terms and Conditions.

There is no specific regulation on opt-in process, but carriers can request evidence of opt-in at any time, so following these best practices is recommended:

• Prior consent or right to opposition will be collected by means of a checkbox, either online or offline. Pre-checking the box as default is to be avoided at all times.
• Advertising by SMS is possible provided that people have explicitly agreed to be approached, at the time of collection of their mobile phone number.

Two exceptions to this principle:

• if the person being prospected is already a client of the company and the prospecting concerns products or services similar to those already provided by the company.
• if the prospect is not of a commercial nature (charitable for example).

In both cases, the person must, at the time of collecting his telephone number:

• be informed that their mobile phone number will be used for prospecting purposes,
• to be able to oppose this use in a simple and free way.

Each message should:

• specify the identity of the advertiser,
• propose a simple way to oppose receiving new messages (for example, a non-premium phone number where it is possible to unsubscribe at the end of the message). 
• In case of marketing purposes the opt-out must be well documented, users can opt out by sms, email, sending a form, contacting brand. There must be always a way out and it must be documented.

Mexico Short Code Opt-Out Requirements 

Opt-outs must be handled by the customer. Opt-in process is not regulated, but must be very well documented on the customer side in Terms and Conditions.

In case of any user complaints to carriers, we need to demonstrate that the Opt-Out process is documented and provide the evidence and also methods on how customers can opt-out.

 

Carriers No longer Supported

Mexico 334 130 - Axtel (ALESTRA SERVICIOS MÓVILES, S.A. DE C.V.) is not supported and that messages sent to it will be delivered with a shared short code