I'm not sure Azure has been available for Iranian IPs for the past few years or ever, feel free to Google "Azure Blocked Iran" though - plenty of petitions.
AWS and Azure prevent Iran-based users from having an account, but if you have an account, you can exchange traffic with Iranian IPs. GCP blocks traffic to/from Iranian IPs for all users. It sounded to me like GP was referring to the latter type of blocking.
I'm not sure Azure has been available for Iranian IPs for the past few years or ever, feel free to Google "Azure Blocked Iran" though - plenty of petitions.