Network Codes

The following network codes are assigned by the FDSN to facilitate unique identifiers for seismological data streams.

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Network Code	Network Name	Operated By	Deployment	DOI
NA	Caribbean Netherlands Seismic Network	Royal Netherlands Meteorological Institute (KNMI), Netherlands		DOI
NB	Northeastern Brazil UFRN	Universidade Federal do Rio Grande do Norte (UFRN), Brazil		—
NC	USGS Northern California Seismic Network	USGS Menlo Park, United States of America		DOI
ND	New CaleDonia Broadband Seismic Network	Centre IRD de Noumea, Nouvelle-Caledonie, New Caledonia		DOI
NE	New England Seismic Network	Albuquerque Seismological Laboratory/USGS (ASL), United States of America		DOI
NF	North Fork Valley Seismic Network	National Institute for Occupational and Health (NIOSH), United States of America	United States of America	—
NG	Reserved for Papua New Guinea Seismic Network	—	—	—
NH	Geological Survey of North Rhine - Westphalia	Geological Survey of North Rhine - Westphalia (GD NRW), Germany		DOI
NI	North-East Italy Broadband Network	Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Italy University of Trieste, Italy		DOI
NJ	Nigerian National Network of Seismographi Stations (NNNSS)	Centre for Geodesy and Geodynamics (CGG), Nigeria		DOI
NK	Nepal Kathmandu	National Seismological Centre (NSC), Nepal		DOI
NL	Netherlands Seismic and Acoustic Network	Royal Netherlands Meteorological Institute (KNMI), Netherlands		DOI
NM	Cooperative New Madrid Seismic Network	CERI - University of Memphis		—
NN	Nevada Seismic Network	University of Nevada Reno (UNR), United States of America		DOI
NO	NORSAR Station Network	NORSAR, Norway		DOI
NP	United States National Strong-Motion Network	United States Geological Survey (USGS), United States of America		DOI
NQ	NetQuakes	United States Geological Survey (USGS), United States of America		DOI
NR	NARS	Utrecht University (UU), Netherlands		DOI
NS	University of Bergen Seismic Network	University of Bergen (UiB Norway), Norway		DOI
NT	USGS Geomagnetism Program	United States Geological Survey (USGS), United States of America	United States of America	DOI
NU	Nicaraguan Seismic Network	Instituto Nicaraguense de Estudios Territoriales (INETER), Nicaragua		DOI
NV	NEPTUNE	Ocean Networks Canada (ONC), Canada		DOI
NW	Northwestern University Seismic Network	Northwestern University, United States of America		—
NX	Nanometrics Research Network	Nanometrics Seismological Instruments, Canada		DOI
NY	Yukon-Northwest Seismic Network	University of Ottawa, Canada		DOI
NZ	New Zealand National Seismograph Network	Institute of Geological & Nuclear Sciences Ltd (GNS), New Zealand		DOI
O1	The NWMO Seismic Network	Nanometrics Seismological Instruments, Canada	—	—
O2	Oklahoma Consolidated Temporary Seismic Networks	Oklahoma Geological Survey (OGS), United States of America		DOI
OA	AusArray Transportable Array	Geoscience Australia (GA), Australia	Australia	DOI
OB	Osservatorio Sismico "A. Bina"	Osservatorio Sismico "A. Bina", Perugia, Italy	Italy	—
OC	Observatorio Sismológico CIGEOBIO CONICET	CONICET (OSCO), Argentina		—
OD	Open Seismometer Network	Universidad Autónoma de Madrid (UAM), Spain Universitat de València (UV), Spain	—	DOI
OE	Austrian Seismic Network	Central Institute for Meteorology and Geodynamics (ZAMG), Austria		DOI
OF	European Multidisciplinary Seafloor and Water Column Observatory - France	CNRS (Centre National Recherche Scientifique), France		—
OG	Sismalp	Observatoire de Grenoble, Grenoble, France	France	—
OH	Ohio Seismic Network	Ohio Geological Survey, United States of America		DOI
OI	Oceania International	United States Geological Survey (USGS), United States of America	—	DOI
OK	Oklahoma Seismic Network	Oklahoma Geological Survey (OGS), United States of America		DOI
OL	Cornegliano Laudense Seismic Network	Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Italy	Italy	DOI
OM	Earthquake Monitoring Program of Oman	Sultan Qaboos University, Oman	Oman	—
ON	Rede Sismográfica do Sul e do Sudeste	Observatório Nacional, Rio de Janeiro, RJ, Brazil		DOI
OO	Ocean Observatories Initiative	NSF Ocean Observatories Initiative (OOI), United States of America		DOI
OP	Rete Sismica e Accelerometrica	Associazione Nazionale Carabinieri nucleo regionale umbria, Italy	—	DOI
OQ	Oklahoma Structural and Site Effects Network	Oklahoma State University (OSU), United States of America		DOI
OR	OR - Reykjavik Energy	Reykjavík Energy, Iceland	—	DOI
OS	Seismological Observatory, Brasilia Brazil	University of Brasilia (UnB), Brazil	Brazil	—
OT	OTRIONS	University of Bari "Aldo Moro" (UNIBA), Italy		DOI
OU	Ulaanbaatar seismic network	Institute of Astronomy and Geophysics of Mongolian Academy of Science (IAG), Mongolia	—	DOI
OV	Observatorio Vulcanológico y Sismológico de Costa Rica	Obsercatorio Vulcanológico y Sismológico de Costa Rica, Universidad Nacional (OVSICORI-UNA), Costa Rica		DOI
OW	Ocean Networks Canada Onshore Network	Ocean Networks Canada (ONC), Canada	—	DOI

Network Data API

The network data shown here is also available programmatically through a web service API.