What? Level3 was huge as a fiber ISP at the enterprise level, but Qwest/CenturyLink has been a huge phone service/ISP in the west since the breakup of Ma Bell. They own the naming rights to the Seahawks's stadium.
They have huge brand recognition in the West, though you're right, little of it's positive. I remember a cover article in my sleepy mountain town's alt/leftist newspaper titled 'Qworst' when I was growing up.
Full disclosure I work at a shop that switched to CL fiber (e.g. Layer3) per my recommendation on coming on. The service quality/uptime is top-notch but the sales/PM process has left a lot to be desired.