Keep on hacking at basebands. In the US, changing a device's IMEI is only illegal when done with intent to obtain unauthorized service. Using a phone of your choice on your side of the radio wave demarc falls squarely under Carterphone.

(Never mind clunkier but more straightforward solutions like a libre device/OS using wifi from a mifi)

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bitwize a day ago | parent [-]

Ah, but once the baseband is hacked, the FCC may declare it out of compliance with its regulations and thus, illegal to transmit!

	▲	mindslight a day ago \| parent [-]
		Sure, but that seems much harder to notice/enforce than blanket blocks. And while you could always get singled out for enforcement, that won't necessarily stop group momentum.