Environment
SIM type: applicable to all
Onomondo Core Network
Question
Does the SIM card / network blacklist some IPs?
Answer
No, Onomondo SIM cards and network don't blacklist specific IPs.
While Onomondo doesn’t control the device OS, your device’s OS or app could implement its own IP blacklists — but this is outside the SIM/network's scope.
If your server has enabled firewall settings, consider enabling Onomondo's public IP ranges within your firewall settings.
Cause
We use private static IPs for our SIMs.
Each SIM has a unique, fixed IP address that doesn't change, regardless of which network it connects to globally.
All our SIMs are assigned IPs within a given range. This approach ensures consistent connectivity without IP-based restrictions.