[quit32]

Twilio's own lookup API will tell you if they are the carrier with I assume pretty good accuracy. It works on the number I own with Twilio.

Some of the political texts I get show twilio as carrier. Calls tend to be Onvoy which is now Inteliquent I believe.

Will also show who the carrier is believed to be if not them.

https://www.twilio.com/docs/lookup/tutorials/carrier-and-cal...

[morphicpro]

Thank you for the info, I will use this to confirm my findings.

[morphicpro]

Dang, not very useful

{"mobile_country_code":null,"mobile_network_code":null,"name":null,"type":null,"error_code":60600}

[quit32]

Ahh sorry I forgot I'm using the Twilio ekata_reverse_phone addon that you can get in twilio marketplace so I have carrier info in the lookup response.

I guess then whether it is 100% on Twilio being the carrier is a little less likely but I tested a few more twilio numbers I know and they all returned with Twilio as carrier.