Not familiar with opnSense, but on your PC, you can check the address it assigns - if it’s /128, it’s a single address.
My ISP does not assign a prefix for delegation unless you specifically ask for it. I had to add “request_prefix 1” to my dhclient.conf file to get a /64 I assume opnSense has a friendly setting somewhere for that. For me, the key phrase was ‘prefix delegation.’ After I got that, I could search around and get my solution.







ID, credit, debit, transit, auto insurance, health insurance…
On topic, I did recently stop carrying a phone card - back before cell phones, you could buy a card, call an 800-number from a pay phone, enter the card number, and make long distance calls. My parents gave me 1200 minutes when I went to college in the late 1980s, and the card still has, probably 1000 minutes. Last used it probably around 2002.