Teachers need to be able to choose the appropriate materials and haveskills to apply them in class efficiently so as to attain effective teachinggoals. In this context, it is vital to be aware of teacher competencies andprovide support when needed. In this study, teacher competenciesabout Educational and Informatics Network (EBA), have been deter mined and associated with particular demographic variables. To thisend, the research has been conducted with the relational survey method.The participants of the study are 652 teachers at different teachinglevels and branches in schools in Kocaeli (a city in the west of Turkey)in the 2015-2016 academic year. As a result of the study, the participantteachers have stated that they partially have EBA competencies. It isalso concluded that teacher competencies do not vary according togender, but vary according to age, branch, and type of school. Therehave been significant differences found in terms of the frequency ofEBA usage and skills of Internet usage.