Chase Bank will only text you from 72166, 28107 or 33748. If you receive a Chase text alert, the message will typically start with "FREE MSG: Chase Fraud" and then have your card and purchase information. Also, it is hard for scammers to spoof shortcodes like 72166, but it is recommended that recipients of suspicious text messages, which appear to be from 72166, call the telephone number on the back of their cards or log into their Chase online accounts to verify.