What does RRN stand for?

What does RRN mean?

RRN	Rally Racing News Community » Sports
RRN	Rally Racing News Community » Media
RRN	Relative Record Number Medical » Laboratory
RRN	Rapid Response Network Governmental » Military
RRN	Rapid Response Network Governmental » NASA
RRN	Rapid Response Network Governmental » US Government
RRN	Recovering Racists Network Community
RRN	Red River of the North Academic & Science » Geology
RRN	Red River of the North Academic & Science » Ocean Science
RRN	Route Reestablishment Notification Computing » Networking
RRN	Serra Norte, PA, Brazil Regional » Airport Codes
RRN	Research Resource Network Community » Non-Profit Organizations
RRN	Reality Radio Network Community » Media
RRN	Rodeo Radio Network Community » Media
RRN	Rodeo Radio Network Community » Sports
RRN	Race Reports Net Community » Media
RRN	Race Reports Net Community » Sports