Here in New Zealand the copper line connections have are being phased
out, but many places still have them. Households and businesses where
the service is withdrawn can no longer use copper line services and
have to switch over to fibre, 4G / 5G, etc. replacements. The
installation of the fibre cabling and connection box are currently
free, unless you live down a very long driveway or in a rural area.
Phone numbers still exist here, although the number of people bothering
with a home phoneline has dropped rapidly.