Current satellites can be utilized for it. If you can see the movement of enemy missile being road transported or underflight, you are likely to be more prepared with interceptors. Satellite guided air defence systems that even integrated together, like CIWS & Interceptors can destroy any incoming object, from cruise to ballistic missile at any distance, even if many come simultaneously. But we need at least a decade to be perfect here. Specially, with our anti ICBM interceptor in development. It will also be used as ASAT missile.