FCC bars providers for non-compliance with robocall protections

I get relentless text and phone spam calls - both robotic and with humans - from just a few voice over Internet platforms. Bandwidth.com, Neutral Tandem, and ALL the brands associated with Sinch (https://en.wikipedia.org/wiki/Sinch_AB) like Inteliquent. Many of these companies got cease and desist orders in the past from the FTC. It didn’t help anything. We need to see them fined, shut down, and executives jailed.

How would one discover which VOIP providers are the source of calls?

I wrote a little tool which can do lookups: https://github.com/evidlo/nanpa_lookup

There's no free source of this information anywhere. The only affordable option is telcodata.us

What do you do when these lookups return the company that owns the number but the company says that they are not in control of the number? E.g, I have one number that keeps harassing me that reports as Verizon but Verizon says they have not been with Verizon since 2024.

Also great tool, thank you