International Federation of Digital Seismograph Networks

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
IL Iranian Long Period Array
  • Institute of Geophysics, University of Tehran, Iranian Seis Center, Iran
8A (2008-2009) IPY: Stability of Larsen C Ice Shelf in a Warming Climate
  • IRIS PASSCAL Instrument Center @ New Mexico Tech, United States of America
DOI
9C (2007-2008) IPY Project "Continental Margin"
YT (2007-2025) IPY POLENET-Antarctica: Investigating links between geodynamics and ice sheets
  • Washington University in St. Louis (WUSTL), United States of America
DOI
T1 IPE_ETE
  • Institute of Physics of the Earth Masaryk University, Czechia
DOI
D1 IPE_EDU
  • Institute of Physics of the Earth Masaryk University, Czechia
DOI
ZN (2013-2013) Investigation of subglacial hydrologic seismic signals, Breidamerkurjokull Glacier, Iceland- a WISSARD test case
  • UC Santa Cruz, United States of America
DOI
XV (2011-2013) INVESTIGATION OF SOURCES OF INTRAPLATE VOLCANISM USING PASSCAL BROADBAND INSTRUMENTS IN MADAGASCAR, THE COMORES, AND MOZAMBIQUE
  • Washington University in St. Louis (WUSTL), United States of America
DOI
ZI (2016-2017) Investigation of crustal structure of the Matador Arch, testing of short period vs long period receiver function
  • Texas Tech University, United States of America
DOI
YK (2003-2018) Investigation of Crustal Structure and Site Response in the San Francisco North Bay
  • USGS Menlo Park, United States of America
DOI
7P (2018-2020) Investigating West Texas Seismicity and Structure with Dense Geophone Arrays
  • University of Texas at El Paso (UTEP), United States of America
DOI
ZI (2018-2019) Investigating Thickness of Peridotites in New Caledonia (formerly CaNappe)
  • Victoria University of Wellington, New Zealand
DOI
XP (2010-2013) Investigating the relationship between pluton growth and volcanism at two active intrusions in the central Andes
  • University of Alaska, Fairbanks (UAF), United States of America
DOI
9R (2022-2023) Investigating the Detachment Fault Cycle at the Mid-Cayman Spreading Center
  • Woods Hole Oceanographic Institution (WHOI), United States of America
4A (2008-2008) Investigating mechanisms of subglacial hydrology and basal shear stress beneath Whillans Ice Stream using passive seismology
  • UC Santa Cruz, United States of America
DOI
8G (2018-2019) Investigating Geophysical Unrest at Sierra Negra
DOI
4C (2020-2024) Inter-Wind
DOI
IR International Registry
  • International Seismological Centre (ISC), United Kingdom
United Kingdom
IO International OGS Network
DOI
IM International Miscellaneous Stations
  • Various Institutions, Multiple Countries
DOI
SG International Geodynamics and Earth Tide Service
  • Multiple Operators, Belgium
DOI
IW Intermountain West Seismic Network
DOI
2H (2016-2025) Interim Broadband Monitoring of the Mount Erebus Volcano
  • New Mexico Tech, United States of America
DOI
3J (2023-2025) Interactions between the Tonga-Lau subduction system and the Samoan plume
  • whoi.edu
8C (2018-2018) Integration of Noble Gas and Seismic Measurements for Small Yield Event Discrimination and Yield Estimation
DOI
XH (2002-2003) Integrated Seismological Studies of Crust and Upper Mantle Structure in Western Anatolia
DOI
9H (2007-2011) Integrated observations from NEAR shore sourcES of Tsunamis: towards an early warning system
  • Alfred Wegener Institute for Polar and Marine Research, Germany
9D (2014-2014) Integrated Geosciences in the Merida Andes, Venezuela
DOI
3B (2015-2016) Integrated Geosciences in the Merida Andes, Venezuela
3B (2017-2019) InTarsis
  • Institute Earth Sciences "Jaume Almera" (ICTJA), Spain
DOI
5F (2018-2020) INTAROS temporary Ocean Bottom Seismometers (OBS) on northern Mid Atlantic Ridge
  • University of Bergen, Inst of Geophysics (UiB), Norway
DOI
XI (2018-2023) Instrumentation for Multidisciplinary Monitoring of an Alaskan Peatland
DOI
IP Instituto Superior Tecnico Broadband Seismic Network
LX Instituto Dom Luiz (IDL) - Faculdade de Ciencias Universidade de Lisboa
DOI
8J (2015-2015) INSPIRE
  • Oregon State University (OSU), United States of America
DOI
ZV (2021-2021) Insights into the subsurface architecture of the Monahans Dune Field with active & passive source seismology and microgravity
  • Baylor University, United States of America
DOI
7I (2011-2022) InSight pre and post-flight test data
7J (2016-2030) InSight pre and post-flight synthetic data
XB (2016-2023) InSight Mission Data
DOI
IQ Inquique Local Network
  • University of Kiel, Germany
DOI
IE INL Seismic Monitoring Program
DOI
YM (2024-2025) INGV temporary seismic network on the Pantelleria Island (Italy)
2I (2024-2050) INGV temporary seismic network of Osservatorio Vesuviano
9N (2011-2016) INGV Temporary Seismic Network for Pollino 2011 Sequence DOI
2D (2008-2009) INGV Temporary Seismic Network for Parma 2008 Sequence (North Italy) DOI
2J (2011-2011) INGV Temporary Seismic Network for Montefeltro 2011 Sequence (Central Italy) DOI
9K (2013-2014) INGV Temporary Seismic Network for Matese 2013 Sequence (Southern Italy)
8H (2009-2011) INGV Temporary Seismic Network for L'Aquila 2009 Sequence DOI
5H (2009-2010) INGV Temporary Seismic Network for Frusinate 2009 Sequence (Central Italy) DOI
3H (2010-2010) INGV Temporary Seismic Network for Fermo and Macerata area 2010 (Central Italy) DOI

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