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
XH (1996-1997)	Altiplano-Puna Volcanic Complex Seismic Experiment	IRIS/PASSCAL		DOI
XM (2005-2006)	ALPASS	IRIS/PASSCAL		—
Z3 (2015-2022)	AlpArray	Eidgendssisch Technische Hochschule - Swiss Seismological Service (ETH), Switzerland		DOI
2V (2019-2020)	Along-Dip Segmentation of the Slip Behavior and Rheology of the Copiapó Ridge, Chile	Universidad de Chile, Dept de Geofisica (DGF), Chile	—	DOI
3Y (2020-2022)	Along-Dip Influence of the Challenger Fault Zone on Slip Behavior and Rheology, Chile	Universidad de Chile, Dept de Geofisica (DGF), Chile	—	DOI
YR (2008-2010)	ALFA08	Institute of Geological and Nuclear Science (GNS), New Zealand		DOI
8T (2018-2022)	Aleutian Subduction Zone GNSS-A 2017-2023	University of Washington, United States of America		DOI
9C (2014-2016)	Aleutian Array of Arrays	UC Riverside, United States of America		DOI
ZJ (2003-2003)	Alborz Transect	Observatoire de Grenoble, Grenoble, France	France	—
XW (2019-2022)	ALBION2	CNRS (Centre National Recherche Scientifique), France		DOI
1K (2013-2015)	Albany-Fraser Experiment	Australian National University (ANU), Australia		DOI
X3 (2022-2024)	AlbaNian TectonIcs of Continental Subduction	Karlsruhe Institute of Technology (KIT GPI), Germany	—	—
2D (2010-2011)	Albacore	UC San Diego, United States of America		—
ZB (1994-1996)	Alaska TE	GEOFON Program (GFZ-Potsdam, Germany), Germany		—
ZF (2011-2011)	Alaska Langseth Experiment to Understand the megaThrust	Lamont Doherty Earth Observatory, Columbia University (LDEO), United States of America		DOI
XD (2018-2019)	Alaska Community OBS Experiment	IRIS OBSIP (OBSIP), United States of America		—
3O (2019-2020)	AKIMBA	Australian National University (ANU), Australia		DOI
XA (2012-2012)	AIDA_Maine	Cornell University, United States of America		—
6J (2023-2025)	Agua Negra Deep Experiment Site	Karlsruhe Institute of Technology (KIT GPI), Germany	—	DOI
YI (2023-2026)	AGEMERA	Geosciences Barcelona (GEO3BCN - CSIC), Spain	—	DOI
XP (2020-2021)	Aftershock deployment for Stanley, ID earthquake 2020	Boise State University, United States of America Idaho Geological Survey (IGS), United States of America		DOI
ZP (2010-2013)	Africa Array- Uganda/Tanzania	Penn State University, United States of America		—
ZP (2007-2009)	Africa Array- Uganda/Tanzania	None,		DOI
YH (2010-2011)	AfricaArray SE Tanzania Basin Experiment	Penn State University, United States of America		DOI
ZQ (2006-2010)	Africa Array- S.Africa mine network	Penn State University, United States of America		—
8A (2015-2018)	AfricaArray - Namibia	Penn State University, United States of America		DOI
Z5 (2018-2021)	A four-dimensional view of deformation in the Eastern Alaska Range - where did the slip on the Denali fault go?	Australian National University (ANU), Australia		DOI
YQ (2017-2019)	Afar Margin Northern Profile	University of Southampton, United Kingdom		DOI
ZK (2009-2011)	Afar Depression Dense Seismic Array	Missouri University of Science & Technology (Missouri S&T), United States of America		DOI
ZF (2007-2009)	Afar Consortium Network	University of Bristol, United Kingdom		—
2H (2009-2013)	AFAR0911	University of Southampton, United Kingdom		DOI
ZE (2007-2009)	AFAR07	University of Rochester, United States of America		DOI
7O (2000-2000)	AF00	Australian National University (ANU), Australia		DOI
4O (2024-2025)	Aeolian Islands Network	Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy University of Geneva, Section of Earth and Environmental Science, Laboratory of crustal deformation and fluid flow (UNIGE), Switzerland	—	—
8K (2023-2023)	Advancing Forest Health Assessment through Multi-Method Geophysical Surveys: Case Study in Snodgrass, Colorado.	Lawrence Berkeley National Lab (LBL), United States of America		DOI
4P (2022-2026)	AdriaArray Temporary Network: Italy - north, south	Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy	—	—
2Y (2022-2026)	AdriaArray Temporary Network: Italy - northeast	Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Italy	—	DOI
1Y (2022-2026)	AdriaArray Temporary Network: Greece, North Macedonia	Aristotle University of Thessaloniki, Greece National Observatory of Athens, Institute of Geodynamics, Athens, Greece Ruhr Universitaet Bochum (RUB), Germany Saints Cyril and Methodius University of Skopje, Macedonia University of Athens, Greece University of Patras, Greece	—	DOI
XP (2023-2027)	AdriaArray Temporary Network: France - MACIV backbone (Multiscale seismic imaging of Massif Central)	ISTerre (ISTERRE), France Research Institute in Astrophysics and Planetology (IRAP), France	—	DOI
Y8 (2022-2026)	AdriaArray Temporary Network: Bulgaria, Moldova, Poland, Romania, Ukraine	Aarhus University (AU), Denmark Department of Earth Sciences, Uppsala University Department of Seismic Activity of Carpathian area (Lviv), Institute of Geophysics by S.I. Subbotin, National Academy of Sciences of Ukraine Institute of Earth Sciences, University of Silesia Institute of Geology and Seismology, Moldavian Academy of Sciences Institute of Geophysics, Czech Academy of Sciences Institute of Geophysics, Polish Academy of Sciences (IGF PAN), Poland Institute of Geophysics, University of Warsaw Institute of Rock Structure and Mechanics of the Czech Academy of Sciences Institute of Seismology, Department of Geosciences and Geography, University of Helsinki National Institute for Earth Physics (NIEP), Romania National Institute of Geophysics, Geodesy and Geography, Bulgarian Academy of Sciences Sodankylä Geophysical Observatory, University of Oulu Sofia University “St. Kliment Ohridski” Technische Universität Bergakademie Freiberg	—	DOI
7B (2022-2026)	AdriaArray Temporary Network: Austria, Croatia, Slovakia	Croatian Seismological Survey (CSS), Croatia ORFEUS Data Center, Royal Netherlands Meteorological Institute (KNMI), Netherlands UniWien (Department of Meteorology and Geophysics), Austria	—	—
Z6 (2022-2026)	AdriaArray Temporary Network: Albania, Austria, Czech Rep., Germany, Hungary, Kosovo, Montenegro, Slovakia	Czech Academy of Sciences, Institute of Geophysics (GFÚ AV ČR), Czechia Friedrich Schiller University Jena (FSU), Germany Geologival Survey of Kosovo, Kosovo Institute of Earth Physics and Space Science, Budapest (EPSS), Hungary Instytut Nauk Geologicznych (ING PAN), Poland Kiel University (CAU), Germany Ludwig-Maximilians-Universität München (LMU), Germany Polytechnic University of Tirana (UPT), Albania Sector for Seismology, Institute of Hydrometeorology and Seismology of Montenegro (IHMS), Montenegro Slovak Academy of Sciences (SAS), Slovakia Uppsala University, Sweden	—	DOI
YM (2016-2019)	Adirondacks Seismic Network	Colgate University, United States of America		DOI
XJ (1995-1996)	Adirondack Broadband Campaign	IRIS/PASSCAL		DOI
ZG (1998-1998)	Adana	GEOFON Program (GFZ-Potsdam, Germany), Germany	Germany	—
8Q (2018-2019)	Active source seismology on the Priestley Glacier shear zone	University of Otago, New Zealand		DOI
XB (2015-2015)	Active source seismic line near the Rio Grande in Sunland Park, NM	University of Texas at El Paso (UTEP), United States of America	—	DOI
7B (2017-2017)	Active source acquisition in the Unaweep Canyon (Western Colorado)	University of Oklahoma (OU), United States of America		DOI
Z3 (2009-2009)	Active Seismic Study of Episodic Tremor and Slip, Detecting Structural changes During an ETS Event: Proof of Concept	Rice University, United States of America		DOI
4S (2019-2020)	Active seismic imaging of a leaky CO2 fault system	Boise State University, United States of America		DOI

Network Data API

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