>Please cite source. Thank you.<
Not listed as member of wcc:
http://www.oikoumene.org/en/member-churches/global-bodies-and-mission-communions/wcc.html
Nor is it recognized under Christian Church families
http://www.oikoumene.org/en/member-churches/church-families.html
The NCC does not include mormons as a member organization but relates to them in an “interfaith” manner - like non-Christian religions such as Buddhism.
http://www.ncccusa.org/interfaith/brieftheocom.html
Omission is proof of nothing.