That's an unreasonable request for L1 support and an extremely uncommon request in 2023. I'm sure if you asked an SRE they could get you a list of IPs, but that list would change every day as new load balancers are deployed with new IPs and the old ones are shut down. IP+port firewalls are ancient tech that doesn't work with modern apps. Also what country is this? I've never seen a school (or any place with free wifi for that matter) whitelist apps like this in the US. They either allow everything or they only use a blacklist.
>Australia has some extremely strict filtering requirements
That's in line with all the horrible complaints I've heard about Australian internet.
>How does one get to an SRE at Spotify, out of interest?
noc@ email addresses are often unpublished, but silently open a ticket assigned to a network engineer. If they have any sense, they'll ignore your request for a list of IP addresses.
At the end of the day, Spotify isn’t going to work well at the school I work for. We filter for things like suicide attempts and to prevent access to adult content. We use an industry standard firewall and aren’t going to stop just because some random non-Australian thinks we don’t have a duty of care to our students.
We have had a lot of abuse in Australian schools. Almost every school has been affected by suicide and bullying. None of us want to go back to the way things were.