1) Pakistan
2) India
3) China
4) Bangladesh
Explanation:
According to a report by the Open Observatory of Network Interference (OONI), China started blocking all language editions of Wikipedia last month. Previously, most editions of Wikipedia—besides the Chinese language version, which was reportedly blocked in 2015—were available, OONI said in their report. Beijing has broadened its block of online encyclopedia Wikipedia to include all language editions, an internet censorship research group reported just weeks ahead of China’s most politically explosive anniversary.