Could someone tell me how much of Boron’s embedded SIM ICCID is unique to Particle as MVNO?
There is no unique prefix for Particle MVNO SIMs. The reason is that we get batches of SIMs from our mobile providers out of the SIMs that they manufacture, and the differentiation between their customers is all software. There’s no need to assign specific blocks of ICCIDs to our mobile providers’ individual customers (including Particle).
However if you have a working Particle SIM, there are currently only three possible prefixes that it could have, depending on whether it’s an Electron/E Series, LTE device, or Boron 2G/3G. This is subject to change, however.
Thank you @rickkas7.