it's everywhere, NB-IoT is a sub-standard of whatever the mobile operator is running(3g,4g,LTE,etc), the devices are installed along aside with those radios on

it's everywhere, NB-IoT is a sub-standard of whatever the mobile operator is running(3g,4g,LTE,etc), the devices are installed along aside with those radios on the celluar towers, yes they're fully owned by your cell phone providers.