MCC (Mobile Country Code) and MNC (Mobile Network Code) together identify a specific carrier in a specific country. For example, 310 260 is T-Mobile US; 234 15 is Vodafone UK.

How Openline uses them

When your phone attaches to a partner network abroad, it reports the local MCC/MNC. Openline's multi-Tier-1 routing may hand you between partners over the course of your trip — you'll see the network name in the status bar change, but the Openline data plan is continuous.

If you're a network engineer curious about which partner you're on: Settings → About phone → SIM status on Android or Settings → General → About → Carrier on iPhone. That's the current MCC/MNC.

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.