Mobile network in Spiti Valley is limited and can be unreliable in many areas. BSNL generally has the best coverage, while Jio works in places like Kaza and a few nearby villages, but the signal may be weak. Airtel and Vi have limited connectivity. Internet speeds are slow, and some remote villages may have no network at all. If you need to work or stay connected, download offline maps and keep important information saved before entering Spiti.