During the trek, you will encounter several guesthouses and lodges. Some of them will offer Wi-Fi either for free or for a small charge. Since the Annapurna is at a high altitude, Wi-Fi might not be working on any given day for many reasons, so don’t rely on it. However, the lower region of Annapurna has good coverage of network, internet & WIFI. To get connected with your near and dear ones you will need to purchase a local SIM such as NTC or NCELL once in Kathmandu. However, they may be very limited or nonexistent in some places, especially in higher altitudes.