Maybe they don't have a choice: "in May 2000, legislation passed that required network operators with significant market power to open up access to their infra

Maybe they don't have a choice: "in May 2000, legislation passed that required network operators with significant market power to open up access to their infrastructure." https://en.m.wikipedia.org/wiki/Mobile_virtual_network_operator https://en.m.wikipedia.org/wiki/Mobile_virtual_network_opera...