What is CGNAT and does Openline use it

Carrier-Grade NAT is used by mobile carriers to share IPv4 addresses across many users. Openline uses CGNAT on IPv4. This means you can't easily accept inbound connections. IPv6 gives you a real address on supported partner networks.

Further reading

Still stuck?

Reach Openline support 24/7 through any of these channels:

When you write in, include your purchase code (the OL-… code we emailed you) and, if the eSIM is already installed, its ICCID (Settings → Cellular → tap the Openline line). That's enough for us to find your plan and diagnose without back-and-forth.