10x iphones in total

4x 16gb iphone 5s ios 12.5.7 carrier telstra

3x 16gb yellow iphone 5c ios 10.3 carrier na

3x blue iphone 5c:

1 is 8gb running 10.3 carrier na

1 is 16gb running ios 7.1 carrier telstra

1 is 16gb running ios 10.3 carrier na

Some have telstra network as the carrier

So they might be locked to telstra sim

But don't know for sure

They all have pretty degraded battery life

Like only maybe 2 hours of usage before they run flat