Operators in the USA have been on the receiving end of complaints from airlines and the Federal Aviation Administration (FAA) over potential interference from C-band 5G services to altimeters, and Verizon and AT&T were forced to delay 5G launches in this midband spectrum (3.7-4 GHz) until January 19. Now, the boot is on the other foot, in another dispute related to spectrum in the higher 6 GHz frequency range. There, AT&T has been at the forefront of a failed campaign to impose restrictions on WiFi 6E networks in unlicensed 6 GHz spectrum. Supported by some other incumbents in the USA, including the Fixed Wireless Communications Coalition (FWCC) and the Utilities Technology Council (UTC), AT&T has been lobbying since April…