
Staying connected in Baja is easy in town and patchy in the desert. A little prep keeps your maps, messages, and emergency calls working when you need them.
Check your US plan
Many US carriers include Mexico in their plans or offer an inexpensive add-on. Confirm with your carrier whether calls, texts, and data work in Mexico and whether there are limits. If your plan covers Mexico, you may not need to do anything else for a short trip.
eSIMs and local SIMs
If your plan does not cover Mexico (or charges too much), a Mexico travel eSIM is the easiest option – buy and install it before you leave, and it activates when you cross. Alternatively, a local prepaid SIM (such as Telcel) is widely available and offers strong coverage across Baja.
Download offline maps
Coverage drops on rural highways and remote stretches like the road to San Felipe. Before you go, download your route for offline use in Google Maps or your preferred app so navigation keeps working without a signal.
Stay reachable in an emergency
Save key numbers offline – your insurer’s emergency line, the Green Angels (078), and your accommodations. A car charger and a backup battery are smart additions for a road trip.
Get Mexican auto insurance in minutes – a fast online quote means you are covered before you reach the border.
Related guides
- What to bring to cross the border by car
- What to do if you have a car accident in Mexico
- San Diego to San Felipe road trip
Frequently asked questions
Will my US cell phone work in Mexico?
Often yes – many US plans include Mexico roaming. Check with your carrier about calls, texts, data, and any limits. If it is not included, use a Mexico eSIM or local SIM.
What is the best way to get data in Mexico?
If your US plan does not include Mexico, a travel eSIM is the easiest option – install it before you go. A local prepaid SIM like Telcel also offers strong Baja coverage.
Is there cell service on Baja highways?
Good in towns, spotty on rural and remote stretches. Always download offline maps before you go and save emergency numbers offline.