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
7K (2024-2025)	CAREER: A comprehensive seismic investigation to the crust and uppermost mantle beneath the South Pole, East Antarctica	Stony Brook University		DOI
9X (2023-2024)	CAREER: A comprehensive seismic investigation to the crust and uppermost mantle beneath the South Pole, East Antarctica	Stony Brook University		DOI
Y6 (2023-2026)	CAREER: A comprehensive seismic investigation to the crust and uppermost mantle beneath the South Pole, East Antarctica	Stony Brook University		DOI
CK	CAREMON Central Asian Cross-border network	GEOFON Program (GFZ-Potsdam, Germany), Germany		—
ZG (1997-1997)	Cariaco	GEOFON Program (GFZ-Potsdam, Germany), Germany	Germany	—
UA	Caribbean Andesite Lava Island Precision Seismo-geodetic Observatory	University of Arkansas - Fayetteville, United States of America	Montserrat	—
YU (2016-2018)	Caribbean-Merida Andes Experiment	Rice University, United States of America		DOI
NA	Caribbean Netherlands Seismic Network	Royal Netherlands Meteorological Institute (KNMI), Netherlands		DOI
CU	Caribbean Network	Albuquerque Seismological Laboratory/USGS (ASL), United States of America		DOI
DT	Carnegie Analog Broadband Seismograph Network	Carnegie Institute of Washington / Science (DTM CIW), United States of America		DOI
4P (2020-2021)	Carnegie Washington Backyard Network	Carnegie Institution for Science (CIS), United States of America	—	DOI
YG (2005-2007)	Carpathian Basins Project Regional Array	University of Leeds, United Kingdom		—
6D (2020-2021)	Caruaru PE	Universidade Federal do Rio Grande do Norte (UFRN), Brazil	—	DOI
CC	Cascade Chain Volcano Monitoring	Cascades Volcano Observatory (CVO), United States of America		DOI
XH (2005-2006)	Cascade Tiltmeter Array	Central Washington University, United States of America		—
XG (2009-2011)	Cascadia Array of Arrays	University of Washington, United States of America		DOI
5E (2014-2015)	Cascadia Initiative	Oregon State University (OSU), United States of America		DOI
7D (2011-2017)	Cascadia Initiative Community Experiment - OBS Component	IRIS HQ, United States of America		DOI
7A (2010-2011)	Cascadia- Keck	Woods Hole Oceanographic Institution (WHOI), United States of America		—
XZ (1993-1994)	Cascadia/SEED reformat	Arizona State University, United States of America		—
5F (2010-2011)	CASE-IPY	University of Strasbourg (Unistra), France		—
9V (2015-2025)	Casey - Davis region	University of Tasmania, Australia		DOI
Z9 (2021-2025)	Casey-Wilkins Adaptable Array	University of Tasmania, Australia	—	DOI
6J (2013-2016)	CASSAT_FR	CEREMA (CEREMA), France		—
N3	CATACA	Other	—	—
CA	Catalan Seismic Network	Institut Cartogràfic i Geològic de Catalunya (ICGC), Spain		DOI
7A (2019-2019)	CATENA	Deutsches GeoForschungsZentrum GFZ (GFZ Potsdam), Germany		DOI
CS	Caucusus Array	Lamont Doherty Earth Observatory, Columbia University (LDEO), United States of America		—
YB (2004-2004)	Cavola a Broadband Dense Array on a Landslide	Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy		DOI
VO	CAVONE SEISMIC NETWORK	Eni spa, Italy		DOI
CY	Cayman Islands	Cayman Islands Government, Cayman Islands		—
RD	CEA/DASE Seismic Network	Departement d'Analyse et Surveillance de l'Environnement du CEA, French Polynesia		DOI
FS	CEA seismic network of south-eastern France	Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA), France	—	DOI
ZS (2002-2005)	CENMOVE	GEOFON Program (GFZ-Potsdam, Germany), Germany		—
8X (2016-2019)	Central Adriatic Seismic Experiment	Swiss Federal Institute of Technology, Zurich (ETHZ), Switzerland		DOI
ZG (2010-2012)	Central Andean Uplift and the Geodynamics of the High Topography	University of Arizona, United States of America		DOI
N4	Central and Eastern US Network	Albuquerque Seismological Laboratory/USGS (ASL), United States of America		DOI
C3	Central and East European Earthquake Research Network	Central and East European Earthquake Research Network (CE3RN), Austria		DOI
7F (2010-2012)	Central Arkansas Induced Eathquakes 2010-2011	University of Memphis, CERI, United States of America		—
KC	Central Asian Seismic Network of CAIAG	Central Asian Institute for Applied Geosciences, Kyrgyzstan		DOI
ZJ (2006-2010)	Central China Broadband Experiment	Multimax Inc, United States of America	United States of America	—
PG	Central Coast Seismic Network, PG&E	Pacific Gas and Electric (PG&E), United States of America		—
XL (2012-2016)	Central Mongolia Seismic Experiment	Lehigh University, United States of America		DOI
YM (2000-2001)	Central North Island Passive Seismic Exp	None,		—
ZO (2017-2017)	Central Oregon Dense 3C Node Transect	University of Utah, United States of America		DOI
XA (2008-2009)	Central Oregon Locked Zone Array, Monitoring seismicity associated with a possible asperity on the Cascadia megathrust	Oregon State University (OSU), United States of America		DOI
6S (2012-2030)	Central Otago Seismic Array	Victoria University of Wellington, New Zealand		DOI
AQ	Central Queensland Seismic Network	Central Queensland Seismology Research Group (CQSRG), Australia		DOI
5H (2017-2019)	Central Virginia and South Carolina seismic monitoring experiment	Virginia Polytechnic Institute and State University (Virginia Tech), United States of America		DOI
T5	Central Weather Administration Seismographic Network	Central Weather Administration	—	DOI

Network Data API

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