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
XU (2016-2029)	USGS NEHRP Proposal 2016-0180 - Greeley	University of Colorado		DOI
NC	USGS Northern California Network	USGS Menlo Park		DOI
MI	USGS Northern Mariana Islands Network	USGS Alaska Anchorage		DOI
ZZ (2015-2016)	USGS Puerto Rico Trence	Woods Hole Oceanographic Institution (WHOI)		DOI
XA (2011-2011)	Using Fault-Zone Trapped Waves to Document Subsuface Rock Damage Caused by the M6.3 Earthquake in Ne	University of Southern California (USC)		DOI
1B (2019-2019)	Using passive seismics to determin a glacier sliding law	University of Wisconsin, Madison		DOI
XO (2003-2004)	US-Japan Collaborative Research: Multi-scale seismic imaging of the Mariana Subduction Factory	IRIS/PASSCAL		DOI
ZU (2020-2023)	USMTArray South Magnetotelluric Time Series	U.S. Geological Survey		DOI
ZI (2022-2025)	Utah FORGE Long Term Seismic Borehole Monitoring	Instrumental Software Technologies, Inc. (ISTI)	—	DOI
EP	UTEP Seismic Network	University of Texas at El Paso (UTEP)		—
ZJ (2017-2017)	UTEP Source Test 2017	University of Texas at El Paso (UTEP)		DOI
YY (2017-2027)	UTPMY	Universiti Teknologi Petronas (UTP)		DOI
1U (2018-2022)	Uturuncu volcano, Bolivia	Cornell University		DOI
ZK (2008-2008)	UWTremTexBS - EarthScope Flex Array	University of Washington		DOI
UZ	Uzbekistan Digital Seismic Network	Republican Center Seismic and Forecasting Monitoring Uzbekistan (RCSFM MEC)		DOI
ZO (2013-2013)	Vaigat	Durham University	United Kingdom	—
VA	VAL D'AGRI NETWORK	Eni spa		DOI
VB	Valencian Broadband Seismic Network	University of Alicante (UA)		DOI
VL	Vale SA Network	Universidade de Sao Paulo, USP	Brazil	DOI
4E (2019-2019)	Valles 3C Node Transect	University of New Mexico (UNM)		DOI
Y5 (2021-2021)	Valles Caldera and Gallina Fault Node Array 2021	University of New Mexico		DOI
VU	Vanuatu Seismic Network	Vanuatu Geoscience Observatory		—
ZK (2014-2014)	Vatnajokull Icequake and Tremor Array: Lite	University of Cambridge (UK) Earth Sciences		—
Y3 (2012-2012)	Vaughn-Lewis Icefall Seismicity Project	Stanford University		DOI
XM (2004-2004)	Vestmanna04 (SeiFaBa Project)	University of Cambridge (UK) Earth Sciences		—
2S (2019-2020)	Vestnaesa Ridge	GEOMAR Helmholtz Centre for Ocean Research Kiel (IFM-GEOMAR)	—	—
Y9 (2020-2021)	Vestnesa Ridge	Alfred Wegener Institute (AWI)	—	—
Z5 (2016-2016)	Vibration measurement at the MROI Inner Beam Combining Area technical slab, instrument optical tables and Delay Line Area	New Mexico Tech		DOI
CV	Vigil Network, Cape Verde Islands	Instituto Superior Tecnico (IST Universidade Tecnica de Lisboa, Portugal)		—
XB (1977-1982)	Viking Mission	Institut de Physique du Globe de Paris	France	—
Y4 (2020-2022)	Villarrica_2020	Carnegie Institution for Science	—	DOI
Z8 (2020-2020)	Villarrica_2020	Boise State University	—	DOI
ZZ (2013-2014)	Virginia seismic experiment	USGS National Center/Reston (United States Geological Survey)		DOI
VR	Virgo Interferometric Antenna for Gravitational Waves Detection	European Gravitational Observatory (ego)		DOI
ZC (2000-2000)	Vogtland	GEOFON Program (GFZ-Potsdam, Germany)	Germany	—
3F (2011-2011)	Vogtland2011	Universitat Potsdam	—	DOI
YO (2009-2009)	Volacano Geophysics Field Course and Digital Signal Processing at Tungurahua, Ecuador	Boise State University		DOI
XZ (2016-2017)	Volatile recycling at the Lesser Antilles Arc: Processes and consequences	Karlsruhe Inistitute of Technology (KIT)		DOI
ZO (2010-2010)	Volcanic stress field analysis using non-local seismic sources at Hekla Volcano, Iceland	University of South Florida (USF)		DOI
XP (2014-2014)	VOLCARRAY	Reseau sismologique et géodésique français (RESIF)		DOI
VN	Voronezh Regional Seismic Network of the Russian Federation	Voronezh Laboratory of the Geophysical Survey of the Russian Academy of Sciences	—	DOI
X6 (2017-2017)	Vp/Vs 30 Refraction Survey of the Palisadoes Tombolo in Kingston, Jamaica	Southern Methodist University		DOI
XU (1993-1993)	VSP at Hole 504	Woods Hole Oceanographic Institution (WHOI)		DOI
XO (2021-2022)	Vuache	Universite de Savoie (LGIT-ISTERRE-France)	—	DOI
XO (2023-2033)	WA Array	Geological Survey of Western Australia (GSWA)	—	DOI
ZT (2021-2022)	Wabash River Flow (WARF) Seismic Experiment	Purdue University		DOI
XM (1995-1996)	Wabash Valley Array Study	IRIS/PASSCAL		DOI
6E (2013-2016)	Wabash Valley Seismic Zone	Southern Illinois University Carbondale (SIUC)		DOI
WK	Wake Island Hydrophone Array	University of Hawaii (UH)	United States of America	—
1M (2021-2022)	Walker Ranch Nodal Seismic Array	U.S. Geological Survey	—	DOI

Network Data API

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