Most of Grand Prairie is still served by an analogue phone system. Regular dial-up only gets to 31200 bps, on a REALLY good day. DSL tops out at 3 Mbps, inexplicably. I’m not even sure HOW they even wired it. Around here, most people have cable internet, or wireless 4G dial-up.
Analog telephony is FCC limited to a certain frequnecy range. That frequnecy directly corresponds to how much bandwidth a circuit is capable of.
Switching to digital meant that the big tel-co’s bottle necked the pipeline and also allowed the FedGov to monitor everything.
As I said, real freedom on the internet during that switch-over. Everything they done since then has only made it worse.