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
4J (2017-2024)	Red sísmica Bioko	Drexel University, United States of America		DOI
4K (2017-2022)	Ruegen Cliff Observatory	Deutsches GeoForschungsZentrum GFZ (GFZ Potsdam), Germany		DOI
4O (2022-2023)	Sandia DAS	Sandia National Laboratories, United States of America	—	DOI
4U (2022-2023)	São Jorge OBS Network	University College London (UCL), United Kingdom	—	DOI
4R (2018-2020)	SEA-SEIS (Structure, Evolution And SEISmicity of the Irish offshore)	Dublin Institute For Advanced Studies (DIAS), Ireland	—	—
4M (2022-2024)	Seismic Campaign Around the Lombardian Pass network	Geoazur (Geoazur), France	—	DOI
4B (2023-2025)	Seismic Network Around Kangaroo Eyre Yorke	Australian National University (ANU), Australia	—	DOI
4D (1985-2009)	Seismological Experiments on Swiss Glaciers	Swiss Seismological Service, Switzerland	Switzerland	DOI
4B (2022-2022)	Seismometer to Investigate Ice and Ocean Structure (SIIOS) Field Experiment: Hiawatha Crater, Greenland	University of Arizona, United States of America University of Maryland (UMD), United States of America		DOI
4C (2005-2010)	Semipalatinsk Test Site Network	Inst. of Geophysical Research National Nuclear Center of Republic of Kazakhstan, Kazakhstan	Kazakhstan	—
4S (2022-2023)	Serra La Nave Distributed Acoustic Sensing Experiment (Etna)	Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy	—	DOI
4A (2016-2019)	SP Crater Network	Northern Arizona University (NAU), United States of America		DOI
4S (2018-2018)	STAK	University of East Anglia (UEA), United Kingdom		DOI
4H (2023-2024)	Stypsi Geothermal Field Network	Aristotle University of Thessaloniki, Greece	—	DOI
4C (2016-2016)	Summer of Applied Geophysical Experience Active Seismic 2016	IRIS PASSCAL Instrument Center @ New Mexico Tech, United States of America		DOI
4D (2012-2025)	Swiss temporary deployments on glaciers	Swiss Seismological Service, Switzerland	Switzerland	DOI
4B (2008-2009)	TASK FORCE KIRGISTAN	GEOFON Program (GFZ-Potsdam, Germany), Germany		—
4F (2013-2014)	Temp-CNCH	Escuela Politecnica Nacional-Instituto Geofisico, Chile		DOI
4L (2023-2025)	Tenerife-Gran Canaria Seismic Network (GUANCHE_INTEGRAL)	Instituto Geográfico Nacional (IGN), Spain	—	DOI
4T (2018-2099)	Texas Seismological Network	Bureau of Economic Geology, The University of Texas at Austin (BEG UTEXAS), United States of America		DOI
4C (2017-2019)	TIPTIMON AFGHANISTAN 2	Deutsches GeoForschungsZentrum GFZ (GFZ Potsdam), Germany		DOI
4R (2021-2021)	Tower Lake area, in western Canada.	Natural Resources Canada (NRCAN), Canada	—	DOI
4K (2014-2016)	UAE transects across the Semail Ophiolite	Khalifa University, United Arab Emirates		DOI
4E (2019-2019)	Valles 3C Node Transect	University of New Mexico (UNM), United States of America		DOI
4Q (2022-2022)	WHOLESCALE survey at San Emidio, Nevada, USA	University of Wisconsin-Madison, United States of America		DOI

Network Data API

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