Nationwide services / NOAANational Oceanic and Atmospheric Administration. The US agency that includes NGS and runs the CORS network.More NGSNational Geodetic Survey. The part of NOAA that runs the official US coordinate system, CORS and OPUS.More CORSContinuously Operating Reference Station. A permanent GPS receiver that records satellite data all day, every day.More
NOAA NGS CORS
Free Use for PPKPost-processed kinematic. Like RTK, but the corrections are applied after the job using recorded data, so no live link is needed.More, not live RTKReal-time kinematic. A way to make GPS accurate to about an inch by getting live corrections from a nearby base station.More
Plans & pricing
Free| Plan | Price | Term |
|---|---|---|
| Free | $0 |
NTRIP caster
hostProvided after signup
PortA number that tells your device which "door" on the caster server to use. For NTRIP it's often 2101.More—
Checked 2026-10-16 Sources: [1] · Blank fields mean the operator doesn't publish it · Report a change
Reliability reports
Collecting soonNo user reports yet for NOAA NGS CORS. We only show real reports from real users, never sample data. Report collection opens soon, and here's what we'll ask:
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