DATA CHECKED OCT 2026
Massachusetts / State-run network

MaCORS

Free  MassDOT

Coverage

1 state

State-run network for Massachusetts.

AlabamaAlaskaArizonaColoradoFloridaGeorgiaIndianaKansasMaineMassachusetts (covered)MinnesotaNew JerseyNorth CarolinaNorth DakotaOklahomaPennsylvaniaSouth DakotaTexasWyomingConnecticutMissouriWest VirginiaIllinoisNew MexicoArkansasCaliforniaDelawareHawaiiIowaKentuckyMarylandMichiganMississippiMontanaNew HampshireNew YorkOhioOregonTennesseeUtahVirginiaWashingtonWisconsinNebraskaSouth CarolinaIdahoNevadaVermontLouisianaRhode Island

Plans & pricing

Free
Free
Correction formats
RTCMThe common format RTK corrections are written in, so different brands can understand each other.More 2.3, RTCM 3.1, RTCM 3.2 MSM4, CMR, CMRxTrimble's own compact correction format. Some networks offer it for Trimble gear and machine control.More

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—
Operator SBC lists RTKReal-time kinematic. A way to make GPS accurate to about an inch by getting live corrections from a nearby base station.More CorrectionsLive info from a base station about how far off the satellite signals are, so your rover can cancel out the error.More as Free.
Sign up →Operator page
Checked 2026-10-16 Sources: [1] · Blank fields mean the operator doesn't publish it · Report a change

Reliability reports

Collecting soon

No user reports yet for MaCORS. 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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Related providers and pages

All RTK options in MassachusettsStateACORNConnecticutNYSNetNew YorkMaCORS (Massachusetts network)Rhode IslandVECTORVermont

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