eSIMNow does not currently offer a Mexico eSIM plan that includes a phone number or SMS capability. Their Mexico offerings are data‑only plans, so travelers will need to use VoIP applications such as WhatsApp, Telegram, or iMessage to make calls and send messages over the data connection. However, some destinations may block or restrict access to specific apps or VoIP services, so travelers should verify that the apps they rely on are accessible in Mexico before purchasing a plan.