Open the Openline app or sign in at openline.com — usage refreshes every ~15 minutes. iPhone Settings → Cellular also shows a rolling total per line but requires manual reset each month.

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.