Yes. There are two types of text messages that are sent, but they come from different services.
First, you can sign up for Arbiter’s CONNECTED service. This is a paid service. If you use CONNECTED, then you will receive a text message when new assignments are published, as well as a text reminder two days before your assignment. There are other benefits to the service and those that have it seem to really like it.
Second, the assignor uses a service to send out last minute and emergency text messages. You will receive periodic text messages from me if you provided your personal cell phone number when you registered. If you are a youth referee, you may want one or both of your parents to be on the system also. They may signup at /emergency-text-messages/ .