Which country doesn't need IELTS for studying abroad?

I want to know Which country doesn't need IELTS for studying abroad? 

The majority of well-known study abroad locations demand that students pass language competence exams. One such test that is well-liked by international institutions is IELTS (also known as the International English Language Assessment System). It evaluates a student's proficiency in reading, writing, and speaking English. Yet, some universities do not require IELTS from students. This implies that you can still pursue an international education even if you have never taken the IELTS test. The nations and universities without IELTS are listed below.
Bangor University
University of Lincoln
University of Bristol
London Southbank University
State University of New York
University of New Orleans
Carleton University
Memorial University
American Business School, France
University of Adelaide