Windstream hires Kenny Gunderman, now at Stephens Inc., as president-CEO, Communications Sales & Leasing, the telco's planned real estate investment trust spinoff, effective March 2 ... Charter Communications hires Jason Wyrick, ex-Starz Entertainment, as vice president-application development, and Justin Colwell, ex-CableLabs, as vice president-wireless products, and promotes Peter Brown to vice president-user experience design ... Lobbyist registrations: 21st Century Fox, Clark Geduldig, effective Feb. 1 ... Amazon, Rich Feuer, effective Jan. 1 ... BSA/The Software Alliance, Clark Geduldig, effective Jan. 1 ... Electronic Signature and Records Association, registering on behalf of itself, effective Feb. 10 ... Tvidia, mobile device security firm, JM Burkman and Associates, effective Feb. 11.