International Federation of Digital Seismograph Networks
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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
B6 Bransfield Strait Seismic Network
  • Instituto Andaluz de Geofisica Universidad de Granada (UGR)
DOI
5M (2018-2020) BRAVOSEIS Onshore Seismic Array
DOI
BL Brazilian Lithospheric Seismic Project
  • Universidade de Sao Paulo, USP
—
Y4 (2013-2013) Brazilian Temporary Seismographic Experiments
  • Universidade de Sao Paulo, USP
—
BM BRGM seismometer Network — —
ZG (2013-2013) Bringing New Tools and Techniques to Bear on Earthquake Hazard Analysis and Mitigation
  • IRIS HQ (DC)
DOI
ZH (2006-2009) British Isles Seismic Experiment
  • University of Cambridge (UK) Earth Sciences
 United Kingdom —
ZI (2006-2009) British Isles Seismic Experiment
  • University of Cambridge (UK) Earth Sciences
—
3J (2016-2018) Broadband Array in Longmenshan Seismic Gap
DOI
TW Broadband Array in Taiwan for Seismology
DOI
YB (1998-1999) Broad Band Array Study in South Africa
DOI
XU (1996-1997) Broadband Crust/Upper Mantle Studies Around New Zealand
DOI
2P (2017-2019) Broadband East Coast Network
  • GNS Science
 — DOI
XE (1999-2001) Broadband Experiment Across the Alaska Range
  • University of Alaska, Fairbanks (UAF, AK USA)
DOI
XS (1998-1998) Broad Band Monitoring of Explosions at Sangay Volcano, Ecuador
DOI
XM (2011-2011) Broadband recording at the site of great earthquake rupture in the Alaska Megathrust
  • University of Oklahoma (OU)
DOI
XI (1995-1997) Broadband Seismic Characterization of the Arabian Shield
DOI
XW (2017-2018) Broadband seismic experiment in NE Uganda to investigate plume-lithosphere interactions
  • Penn State University
DOI
XD (2002-2006) Broadband Seismic Experiment in Various Regions in China
DOI
XB (2005-2007) Broadband Seismic Investigation of the Cameroon Volcanic Line
DOI
XD (2001-2001) Broadband Seismic Studies of Dome Growth at Merapi Volcano, Indonesia
DOI
5K (2022-2022) Broadbands for Mines Spring 2022 Field Camp
  • Colorado School of Mines
DOI
YO (2003-2006) Broadband Tomography Under Costa Rica and Nicaragua
DOI
BB Brunei Darussalam National Seismic Network Brunei —
7A (1992-1992) BTL
  • Australian National University (ANU, Australia)
 Australia —
5F (2022-2024) Burma Arc from Collision Kinematics to Subduction Tectonics as Observed from Passive seismic - Thailand
  • University of Missouri
DOI
B1 Buryat Regional Seismic Network of the Russian Federation
  • Buryat Branch of the Geophysical Survey of the Russian Academy of Sciences
 — DOI
X1 (2011-2012) Byrd Lake Reflection Seismics - Cresis
  • Penn State University
DOI
RC BYU-Idaho Network
  • Brigham Young Univ-Idaho (BYU Idaho)
DOI
XH (1992-1993) Cajon Pass Borehole Recording Phase I
  • University of Southern California (USC)
DOI
YD (2003-2006) Calabria-Appennine-Tyrrhenian/Subduction-Collision-Accretion Network
DOI
EN CalEnergy Subnetwork
  • USGS Caltech, Pasadena
—
YH (2020-2020) Calibration of a distributed acoustic sensing platform for measuring snow depths
  • Harvard University
DOI
WR California Division of Water Resources
  • California Division of Water Resources
—
CE California Strong Motion Instrumentation Program
  • California Division of Mines and Geology (CDMG)
—
CT California Transect Network
  • UC Santa Cruz
—
VK California Volcano Observatory — DOI
ZE (1999-1999) Calixto
  • GEOFON Program (GFZ-Potsdam, Germany)
—
8O (2019-2025) CaMI Field Research Station Geophone Network (CaMI.FRS)
DOI
QW Canadian National Earthquake Early Warning System Canada DOI
QX Canadian National Earthquake Early Warning System - Extended Partners
  • Natural Resources Canada (NRCAN Canada)
 — DOI
C2 Canadian National Geomagnetic Network Canada —
CN Canadian National Seismograph Network
  • Natural Resources Canada (NRCAN Canada)
DOI
Y5 (2006-2018) Canadian Rockies and Alberta Network
  • University of Alberta (UAlberta Canada)
—
C8 Canadian Seismic Research Network
—
T4 Canakkale Onsekiz Mart University Earthquake Research Center
  • Canakkale Onsekiz Mart University (COMU Turkey)
—
1C (2022-2025) CANALAB Project - Temporary Seismic Deployment — DOI
ZI (2020-2020) Canary Islands seismic monitoring with Distributed Acoustic Sensing
DOI
4L (2017-2019) Canoe Reach Geothermal Field
  • University of Calgary (U of C Canada)
DOI
9B (2014-2015) Cape Verde, Fogo Temporary Seismic Network
  • Instituto Português do Mar e da Atmosfera, I.P. (IPMA)
—

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