From spec sheet, i can find the frequency band for these countries.
431.0 437.0 MHz (U.S.A., Canada, Mexico, Brazil)
868.125 869.850 MHz (Europe, U.A.E.)
868.125 868.475 MHz (China, Singapore)
865.5 866.5 MHz (India)
312.3 314.8 MHz (Japan)
433.05 434.79 MHz (Hong Kong, Macau)

How about Thailand, Indonesia & Vietnam?