Received an unsolicited text message from this number, directing me to a Website - mobiletaxrevolt.com. The URL redirects to onlinetaxrevolt.com. This is the info on the contact us page.

Online Tax Revolt: March for America
2020 PENNSYLVANIA AVE NW
# 557
WASHINGTON, DC  20006-1811
[email protected]

The message said I could respond with X to stop message, but frankly I'm afraid that will only validate that my number is working. I'm also reluctant to write into the email address, but they seem like the type of organization to spam without remorse.