The IMSI (International Mobile Subscriber Identity) is a 15-digit number that identifies your plan within a mobile network — like a username at the SIM level. Openline eSIMs each get one.

Where to find it

  • iPhone: it's not directly exposed; only network operators can query it.
  • Android: dial *#*#4636#*#* and browse the Phone Information section on many phones (varies by OEM).
  • Openline app: we don't display it because it changes when we roam you across partners. The stable identifier we use for support is the ICCID.

Unless you're doing IMSI-based routing yourself, you'll never need this value.

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.