RTK networks
11,915 streams · 5,690 ≈ stations · 122 networks · 169 countries
A public map and directory of RTK casters and stations from open sourcetables. Run your own caster? Add it and manage it on Fixcast.
Updated: 2026-07-08· 16 d
A directory of public correction networks and NTRIP casters, built from public sourcetables. Open a caster for details, or find yours and manage it on Fixcast.
commercial network 38
- caster.emlid.com:2101 995 streams· 393 stations
- Alberding GmbH ntrip.gnssonline.eu:2101 143 streams· 30 stations
- 178.172.26.131:8080 113 streams· 45 stations
- ITACyL ntrip.itacyl.es:2101 96 streams· 48 stations
- 62.154.166.171:2101 83 streams· 1 stations
- GUGiK system.asgeupos.pl:8082 65 streams· 65 stations
- Wiener Netze GmbH ntrip.eposa.at:2101 51 streams· 1 stations
- 195.77.19.146:2101 47 streams· 10 stations
- 193.137.94.71:2101 45 streams· 45 stations
- 88.151.16.54:2101 43 streams· 15 stations
- 84.88.72.26:2100 40 streams· 17 stations
- 194.105.50.232:2101 39 streams· 14 stations
- TVN gps.can-net.ca:2300 32 streams
- DGS 155.207.200.155:2101 30 streams· 27 stations
- caster.godigifarm.com:2101 29 streams· 1 stations
- 147.162.229.53:2101 25 streams· 17 stations
- dk.nrtk.eu:10300 24 streams· 9 stations
- 06-GPS ntrip.06-gps.nl:2101 23 streams
- 205.193.187.3:12102 22 streams· 22 stations
- catnet-ip.icc.es:8080 22 streams· 18 stations
- ntrip.gpsdata.co.jp:80 22 streams· 2 stations
- Digitaal Vlaanderen flepos.vlaanderen.be:2101 18 streams· 1 stations
- caster.hprtk.net:2111 16 streams· 1 stations
- ntripdist-swepos.lm.se:8504 13 streams· 6 stations
- 193.219.10.2:2101 12 streams· 1 stations
- CRS/OGS caster.crs.inogs.it:2110 12 streams· 11 stations
- it.nrtk.eu:2101 11 streams· 1 stations
- GNSSnet.hu 84.206.45.44:2101 8 streams· 1 stations
- GEOSN www.ntrip.sachsen.de:2101 6 streams
- 199.68.241.82:2102 4 streams· 1 stations
- www.sapos-bb-ntrip.de:2101 3 streams· 1 stations
- LGL Baden-Wuerttemberg www.sapos-bw-ntrip.de:2101 3 streams· 1 stations
- USACH usclcaster.usach.cl:2101 2 streams· 1 stations
- uk.nrtk.eu:2101 2 streams· 2 stations
- 146.83.153.183:2101 1 streams· 1 stations
- 200.9.201.58:2101 1 streams· 1 stations
- trimble.gge.unb.ca:2101 1 streams· 1 stations
- Deutsches GeoForschungsZentrum rtcm-ntrip.org:2101 0 streams
state / geodetic 27
- GA ntrip.data.gnss.ga.gov.au:443 918 streams· 884 stations
- EUREF www.igs-ip.net:2101 384 streams· 350 stations
- IGS ntrip.gnsslab.cn:2101 333 streams· 256 stations
- GA caster.cddis.eosdis.nasa.gov:443 327 streams· 293 stations
- EUREF euref-ip.net:2101 218 streams· 198 stations
- EUREF www.euref-ip.be:2101 214 streams· 198 stations
- IGN ntrip.ign.gob.ar:2101 204 streams· 122 stations
- EUREF euref-ip.asi.it:2101 200 streams· 185 stations
- RIGTC-GOP ntrip.pecny.cz:2101 170 streams· 146 stations
- BKG rt.igs.org:2101 165 streams· 137 stations
- BKG ntrip-ch.cosmic.ucar.edu:2101 165 streams· 137 stations
- IBGE gps-ntrip.ibge.gov.br:2101 149 streams· 122 stations
- Instituto Geografico Nacional ergnss-ip.ign.es:2101 130 streams· 103 stations
- EUREF rgp-ip.ign.fr:2101 128 streams· 69 stations
- Ordnance Survey ntrip.os.uk:2101 117 streams· 116 stations
- Ordnance Survey ntrip1.os.co.uk:2101 117 streams· 116 stations
- BEV gref-ip.de:2101 112 streams· 39 stations
- IGS products.igs-ip.net:2101 87 streams· 13 stations
- GKU Bratislava skpos.gku.sk:2102 76 streams· 1 stations
- GNS Science positionz-rt.linz.govt.nz:2101 60 streams· 60 stations
- rt.cacsb.nrcan.gc.ca:12108 41 streams· 41 stations
- cpos.kartverket.no:2102 16 streams· 1 stations
- banian.gouv.nc:8000 14 streams· 5 stations
- IGN igncaster.snitcr.go.cr:2101 9 streams· 9 stations
- Lantm?teriet dgnss-swepos.lm.se:2101 5 streams· 5 stations
- ESA/ESOC navrelayvm1.esoc.ops.esa.int:2101 2 streams· 2 stations
- BKG 217.92.99.153:2101 1 streams· 1 stations
academic 3
- rtgpsout.unavco.org:2101 1,104 streams· 1,093 stations
- rtgpsout.earthscope.org:2101 1,102 streams· 1,091 stations
- AGH-UST gps1.geod.agh.edu.pl:2101 1 streams· 1 stations
community relay (aggregated) 4
- CENTIPEDE-RTK crtk.net:2101 1,191 streams· 1,187 stations
- CENTIPEDE-RTK caster.centipede.fr:2101 1,191 streams· 1,187 stations
- RTK2go rtk2go.com:2101 787 streams· 756 stations
- SCSC ntrip.use-snip.com:2101 13 streams· 12 stations
The “mapped” layer is public caster data, not measurements — counts are streams (mountpoints); “stations” estimates distinct bases after removing network overlap. Real stream health is the “live-checked” layer.