T wrote:
Hi All,

Years ago there use to be services that you could
find your dynamic IP (WAN) address for use with
remote access. Do these still exist and are they
reliable?

Many thanks,
-T

The question would be, whether any of the services
are free any more.

https://en.wikipedia.org/wiki/Dyn_%28company%29

"In June 2019, Oracle announced Dyn DNS services would be shutting
down in 2020, with customers receiving a notice via email. "Oracle is
announcing the end-of-life for the free Standard DNS service in favor
of the enhanced, paid subscription version on the Oracle Cloud
Infrastructure platform. On May 31, 2020, the 'EOL Date', the Standard
DNS will be retired and will no longer be available." Commercial clients
will be migrated to Oracle Cloud Infrastructure, with Dyn's free service
(DynDNS or DDNS) ceasing operations completely.

Many customers publicly shared they would not be migrating to OCI and
considering alternatives such as

NS1, Constellix, DNS Made Easy, Cloudflare, Verisign, and Rackspace.

In addition to the technical changes, employees at Dyn's Manchester,
New Hampshire location were laid off and the office space was put up
for rent by the building owner.
"

Good luck with that.

Paul