APN (Access Point Name) is the DNS-like handle your device uses to route data through a specific mobile network. Older SIMs required manual APN entry; modern eSIMs including Openline auto-configure it during install.

When you might need to touch it

  • On some Android builds after a full-phone reset, the APN doesn't reapply. Fix: create a new APN, name it Openline, set the APN field to openline, type default,supl,dun.
  • iPhones never require manual APN for Openline; the profile carries it.
  • If nothing else works, factory-reset the eSIM profile from openline.com — a fresh reinstall re-applies the APN too.

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.