Is there a black king snake that is not a Mexican king?

OK folks here’s the deal:
My very first snake that I acquired was in 1998 (yes I’m old) and was a kingsnake. He was mostly solid black with a white/creamy belly and some light speckling on his sides (if I remember correctly it’s been a long time and I’d need to dig up some photos of him). At that time in my herp life I had never heard of a Mexican king snake.
Now I see them everywhere and they’re beautiful but I don’t think they necessarily look like my guy.

So my question is this: is there a king snake that looks similar to a Mexican black king but is not a Mexican black king?

I thought I had uncovered one a while back doing a Google search but can’t find it now.

I’ll try to dig up some photos of my guy but they’re pretty buried. I appreciate any and all responses.

Thank you for your time.