When Fiber will be available in 48323?

Here’s what AT&T says to “When will I get Internet / Fiber in my area?”: https://forums.att.com/conversations/uverse-tv-account/when-is-att-fiber-going-to-be-available-things-to-know-from-att/5defbfdbbad5f2f606aa46e4?source=ESSZ0SSPR00facsEM&wtExtndSource=20201116170656_AT%26T+Community+Forums__COMMUNITY_4160813184#M11377

AT&T doesn't publicize expansions with the public, or with it's local field employees. If you see contractors pulling fiber on poles or underground, it could indicate that fiber is coming. However, it's often just being run through a neighborhood on it's way to somewhere else. You should know that AT&T isn't concentrating on fiber expansion in existing neighborhoods any more. Most new fiber is dedicated to 5G towers, government & emergency services and new housing developments.

Great to know.  Time to switch to Xfinity...