Did you try a web search to see if there is a company that uses that number for a short code?
I'm most definitely NOT a VZW employee. If a post answered your question, please mark it as the answer.
They are short codes. I did a quick google search, and it appears that: https://www.americanhartfordgold.com/terms-and-conditions/
SMS TERMS AND CONDITIONS
The short code is used by American Hartford Gold Group to provide information of precious metals market information and historical perspective that empowers both new and experienced investors.
HOW TO OPT IN
You may opt-in by submitting a form on our website. 7 messages/month.
HOW TO OPT OUT
To opt-out from SMS service you can text “STOP” to 65532 from your mobile phone. You will be unsubscribed from the text program. You will receive one SMS that confirms you have successfully opted-out. After that you will receive no more messages for this system until you opt-in again.
HOW TO GET HELP OR SUPPORT
To get help at any time, you can email us at [email address removed per the Verizon Terms of Service] or call us toll free at 1-800-462-0071. From your phone you can also text “HELP” to 65532. 7 messages/month. Message and Data Rates May Apply. Carrier is not liable for delayed or undeliverable messages.