I lost my iPhone 6s Plus and It's Offline

Without the SIM, if it is within range of a known wifi node it will still connect and report to the iCloud servers.

Anyone can force it into recovery mode and erase it in iTunes, but as long as it is listed under your iCloud tracked devices, activation lock remains in effect. If they try to activate and use the then erased device, they will be unable to without your iCloud password.

Find My iPhone Activation Lock - Apple Support

First thing is to report the theft to your carrier and get the SIM cancelled. I had my phone stolen a year ago and the crooks ran up over £200 in call charges overnight before the account was frozen. Report the matter to the police too. There probably isn't much that they can do, but you'll need to report the theft if you are to make any claim, assuming you have insurance. Hopefully you set up Find My iPhone. As long as you keep the device registered with it nobody else should be able to set it up as a new device. Be wary of any messages you might receive on any replacement device that might be designed to get you to give your password or remove the device from the Find My iPhone service.

tt2

Hi Brian, any chance of seeing you over in this thread? 🙂

tt2

Hi

Tell your network provider now they could use your simcard in another phone and run up a big bill.

Cheers

Brian