E Wikipedia

E.164 - Wikipedia.

E.164 is an international standard (ITU-T Recommendation), titled The international public telecommunication numbering plan, that defines a numbering plan for the worldwide public switched telephone network (PSTN) and some other data networks.. E.164 defines a general format for international telephone numbers.Plan-conforming numbers are limited to a ....

https://en.wikipedia.org/wiki/E.164.

Navy E Ribbon - Wikipedia.

The Navy "E" Ribbon or Battle Efficiency Ribbon (informally the Battle "E" ribbon) was authorized on March 31, 1976, by Secretary of the Navy J. William Middendorf as a unit award for battle efficiency competition. The service ribbon replaced the "E" patch previously sewn on the right sleeve of the enlisted naval uniform for rates/pay grades E-1 through E-6..

https://en.wikipedia.org/wiki/Navy_E_Ribbon.