Short answer: satellite service is “available” at your location when two things line up — your carrier offers direct-to-cell, and a satellite is actually passing overhead. The first is a fixed fact about your plan; the second changes minute to minute. Here’s how to check both.
The fastest way: check your spot on a live map
Rather than guess, tap your exact location on the live coverage map. GroundOrbit returns a single connectivity reliability score that fuses mobile (LTE/5G) and satellite direct-to-cell for that spot — and shows which constellations (Starlink, AST SpaceMobile, Lynk, OneWeb) are overhead now and when the next window opens. It’s the one view that answers “can I connect here — by tower or satellite?”
The three things that decide availability
- Your carrier & plan. Direct-to-cell is a carrier service. In the US that’s T-Mobile’s T-Satellite (also addable for Verizon/AT&T customers), with AT&T and Verizon launching AST SpaceMobile through 2026.
- Your phone. You need a recent enough handset — see the phone compatibility guide. Most LTE phones from the last ~4 years qualify.
- A satellite overhead. These are low-Earth-orbit satellites that pass over, so a supported phone on the right plan still only connects when one is in view — which is exactly what the map’s pass windows show.
Also worth checking
- Your carrier’s coverage map / eligibility tool (often inside the carrier app, via an IMEI check) confirms whether your line and device are enabled.
- Your phone’s status bar — once you’re out of terrestrial coverage, a satellite indicator appears if your device supports it.
- Clear sky. Direct-to-cell needs an open view of the sky; it won’t work well indoors, in dense canopy, or in deep valleys.
Where each service works today
T-Satellite (Starlink) centers on the continental US plus roaming into Canada, New Zealand and Japan. Starlink direct-to-cell has carrier partners in several countries. AST SpaceMobile is rolling out with AT&T and Verizon across the continental US through 2026. Because all of these are expanding fast, the live map is the most current answer for a specific spot.
Planning a trip?
If you’re heading somewhere remote, don’t just check one point — Route Connectivity walks your whole A→B path and flags the stretches where you’ll have no signal and the satellite windows that fill the gaps. Start at the map and tap where you’re headed.