Is This Hose Bib Soldered or Threaded?

[Deo619]

Need to replace this leaky hose bib. I cleaned it off and couldn't see any threads exposed so it seems like it's soldered, yet it it's got a hex shape that can accept a wrench. Is it a given that having a hex shape like that means it must be threaded?

 

[CountryBumkin]

I don't see any threads. If it was threaded at one time - it has converted itself to "welded" over time.

 

[Sponsor]

 

[Terry]

I think you need to be prepared to go into the wall behind.
And if it turns out it's threaded, even better.
I normally expect that I would have to open up some wall inside.