What's the best RTK service right here?

1. We find the state your spot is in.
2. If the state runs a free network, that is the pick for most people.
3. If not, we show the service with the lowest published yearly price that lists your state, plus the cheapest local network. These are the same picks as our state pages.
4. Then we measure from your exact spot to the nearest stations we can map: NOAA CORS (all states) and Trimble VRS Now (from Trimble's public station map).

Being listed for a state means the operator says it serves that state. It does not promise every spot in the state is covered, so always check the operator's own map before you pay.

With a single base, RTK accuracy drops as you get farther away. NOAA suggests staying within about 12 miles. Network RTK (VRS) builds a virtual base near you, so it cares about the station spacing around you instead. See the baseline distance check.

Source: NGS User Guidelines for Single Base Real Time GNSS Positioning v2.1.

• Services, prices and state lists: our own directory, checked against each operator's site (dates on each provider page).
• NOAA CORS: NOAA CORS Network coordinate list (ITRF2020).
• Trimble VRS Now stations: Trimble's public VRS Now sensor map, read on Oct 16, 2026 (510 stations).
• State lookup: US Census Geocoder.