var flag     = true,
        win      = $(window).scrollTop(),
        blockTop = $(".support_month").offset().top;

    $(window).scrollTop(function () {
        if (  blockTop < win ) {
            while (flag) {
                $('.counter-number').each(function () {
                    $(this).prop('Counter',0).animate({
                        Counter: $(this).text()
                    }, {
                        duration: 1000,
                        easing: 'linear',
                        step: function (now) {
                            $(this).text(Math.ceil(now));
                        }
                    });
                });
                flag = false;
            }
        }
    })

;

AOS.init(
{
  duration: 300
});

<div data-aos="fade-up"></div>