Unique agency IDAbbreviationFull nameCountryInternational network(s)Local network(s)Station(s)
OCAOCA-GeoazurObservatoire de la Côte d'AzurFrance (FRA)EPN densification, EPOSRENAG
CRSOGS/CRSIstituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGSItaly (ITA)EPN, EPN densification
OMPOMPObservatoire Midi-PyrénéesFrance (FRA)EPN, EPN densification, EPOSRENAG
OPGCOPGCObservatoire de Physique du Globe de Clermont-FerrandFrance (FRA)EPN densification, EPOSRENAG
OREMEOREMEObservatoire de Recherche Méditerranéen de l’EnvironnementFrance (FRA)EPN densification, EPOSRENAG
OSOSOrdnance SurveyUnited Kingdom of Great Britain and Northern Ireland (the) (GBR)EPN, EPN densification, EPOSOS Net