If you already communicated with a human being in HR RE: the opportunity I'd just ask them (nicely) over the email about the status. I only had one or two cases

If you already communicated with a human being in HR RE: the opportunity I'd just ask them (nicely) over the email about the status. I only had one or two cases of person not responding to my emails. If they don't, I just mark status of the opportunity as "Unresponsive" on my list, sigh, and move on.