Which is my digital sim iMei on iPhone 14 plus

If you are in the US, then your iPhone 14 Plus only has eSIM capability. This means that there is not physical SIM card IMEI.

Open Settings ➡️ General ➡️ About ➡️ IMEI: There will be a long number next to it and that is your IMEI.

Axel F.

If you currently have no active eSim, give the carrier the 1st one -IMEI.