Does anyone know how many dog breeds are out there in total

I don't think there's an precise number. New breeds are being developed constantly, and some breeds become extinct. Besides, it depends on the registry you check. For example there are over 150 breeds registered with the AKC but of course this number doesn't include every single breed in the world.

I've heard there are over 460 breeds worldwide but I don't know how accurate this number is.
Ok thanks, that information is enough for me