AFAIR, 112 is defined by some ITU or 3GPP standard, which is honored in at least Europe/Russia region. In other places different numbers might as well be routed

AFAIR, 112 is defined by some ITU or 3GPP standard, which is honored in at least Europe/Russia region. In other places different numbers might as well be routed to it or (even better) redefined inside terminal software (SIM). But I no longer work in that area, so can't be 100% sure.