NEVER, NEVER, but NEVER return calls or texts to persons or numbers you don't recognize. It's a sure fire way to download a virus, or get caught up in some sort of scam. Forward the call or text to *7726 (SPAM). This works for AT&T, T-Mobile, Verizon, Sprint or Bell. Don't know about other providers. Read advice from the FTC
https://www.consumer.ftc.gov/articles/0350-text-message-spam
Forward the text to 7726 (SPAM)
It is very easy to send text messages from any number, or from email, etc.
Did the text mention your name?
If not, then the sender is just broadcasting hoping to get curious people to text back.