AT&T

AT&T's eSIM by AT&T brings your US carrier experience across the Mexico border with coverage spanning the US, Mexico, and Canada on a single plan. The inclusion of 5GB of hotspot data means you can tether your phone to a laptop or tablet without additional charges. You can choose between 7, 15, or 30-day windows, giving you flexibility if your trip length isn't certain.

This option appeals most to existing AT&T customers who value carrier continuity and want to avoid the friction of switching SIMs mid-trip. The tri-country bundling works well for road trips or cross-border visits. The main trade-off is that AT&T's pricing typically runs higher than independent eSIM MVNOs, and the service is really designed for US travelers rather than offering the value proposition for tourists arriving from elsewhere.