[iamnothere]

Nobody is making spam calls with cell phones. Spammers use VOIP services and old TDM systems.

[DrewADesign]

There’s SIM card banks for SMS spam… I’d be surprised if there wasn’t anything similar for calling. Not that I support this bill but it is a thing.

[rescbr]

From what I’ve investigated as a recipient of spam calls, I’ve been called from legitimate mobile numbers from my own mobile telco. The only thing that explains that are SIM card banks.

Unfortunately there isn’t an easy way to report abuse to the telcos (and regulators).

[singpolyma3]

I think most major US carriers have a short code for reporting abuse now.