46 of 46 casters
A
ALCORS (Alabama)
Alabama DOTFree
A
AZCORS (Arizona)
Arizona DOTFree
A
ARCORS (Arkansas)
Arkansas DOTFree
C
CRTN (California)
SOPACFree
651 mountpoints70 verified
M
MesaCORS (Colorado)
Mesa CountyFree
WC
Western CO RTK
AGSCOFree
F
FPRN (Florida)
FloridaFree
I
INCORS (Indiana)
Indiana DOTFree
I
IARTN (Iowa)
Iowa DOTFree
9 mountpoints
K
KYCORS (Kentucky)
Kentucky DOTFree
LC
LSU C4G (Louisiana)
LSU C4GFree
M
MaineDOT (Maine)
Maine DOTFree
M
MaCORS (Massachusetts)
MassachusettsFree
MC
MDOT CORS (Michigan)
Michigan DOTFree
M
MnCORS (Minnesota)
Minnesota DOTFree
13 mountpoints
G
GCGC (Mississippi)
USMFree
M
MoDOT (Missouri)
Missouri DOTFree
N
NYSNET (New York)
New York StateFree
NR
NCGS RTN (North Carolina)
North Carolina Geodetic SurveyFree
O
OhioDOT (Ohio)
Ohio DOTFree
O
ORGN (Oregon)
OregonFree
17 mountpoints
S
SCRTN (South Carolina)
South CarolinaFree
T
TennDOT (Tennessee)
Tennessee DOTFree
TG
TURN GPS (Utah)
UtahFree
V
VAOT (Vermont)
VermontFree
W
WSRN (Washington)
Washington State Reference NetworkFree
489 mountpoints
W
WVDOT (West Virginia)
West Virginia DOTFree
W
WisCORS (Wisconsin)
Wisconsin DOTFree
PT
PointOne True RTK
PointOne NavigationPaid
PV
PointOne Virtual RTK
PointOne NavigationPaid
SS
Swift Skylark
Swift NavigationPaid
G
Geodnet
GeodnetPaid
TV
Trimble VRS Now
TrimblePaid
HS
Hexagon SmartNet
HexagonPaid
D
DigiFarm
DigiFarmPaid
TT
Topcon TopNET Live
TopconPaid
K
KeynetGPS
Keystone Aerial SurveysPaid
C
Can-Net (Cansel)
CanselPaid
B
BrandtNET (Canada)
BrandtPaid
B
BCACS (British Columbia)
Government of British ColumbiaFree
EN
EarthScope NOTA
EarthScope ConsortiumFree
I
IGS-IP
International GNSS ServiceFree
R
RTK2GO
RTK2GO CommunityFree
EC
Emlid Caster
EmlidFree
CR
Centipede RTK
Centipede NetworkFree
NG
Nevada GPS
NevadaFree
Snapshot from 2026-04-21. Mountpoint and station counts reflect the most recent ntrip-inspector probe and may have changed since.