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
IU	Global Seismograph Network (GSN - IRIS/USGS)	Albuquerque Seismological Laboratory/USGS (ASL)		DOI
II	Global Seismograph Network - IRIS/IDA	Scripps Institution of Oceanography (SIO)		DOI
IB	IberArray	Institute Earth Sciences "Jaume Almera" CSIC (ICTJA Spain)		DOI
IF	IFMS Seismic Network	IFMS		DOI
IK	IISERK Seismic Network	Indian Institute of Science Education and Research Kolkata (IISER)	India	DOI
IA	InaTEWS Indonesia Tsunami Early Warning System	Meteorological, Climatological and Geophysical Agency (BMKG Indonesia)		—
IE	INL Seismic Monitoring Program	Idaho National Laboratory (INL)		DOI
IQ	Inquique Local Network	University of Kiel		DOI
IP	Instituto Superior Tecnico Broadband Seismic Network	Instituto Superior Tecnico (IST Universidade Tecnica de Lisboa, Portugal)		—
IW	Intermountain West Seismic Network	Albuquerque Seismological Laboratory/USGS (ASL)		DOI
IM	International Miscellaneous Stations	None		—
IO	International OGS Network	Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS)		DOI
IR	International Registry	International Seismological Centre (ISC, UK)	United Kingdom	—
IL	Iranian Long Period Array	Institute of Geophysics (University of Tehran, Iranian Seis Center-Iran)		—
I2	Iranian National Broadband Seismic Network	International Institute of Earthquake Engineering and Seismology (IIEES)	Iran	—
I1	Iranian Strong Motion Network	Road, Housing & Urban Development Research Center (BHRC)	Iran	DOI
IX	Irpinia Seismic Network	—		—
IS	Israel National Seismic Network	Geophysical Institute of Israel (GII Israel)		—
IJ	Istanbul University Seismic Network	Kandilli Observatory And Earthquake Research Institute, Boğaziçi University (KOERI)		DOI
IZ	Italian Experimental Seismic Network	Other	—	—
IV	Italian National Seismic Network	Istituto Nazionale di Geofisica e Vulcanologia (INGV)		DOI
IT	Italian Strong Motion Network	Presidency of Counsil of Ministers - Civil Protection Department (PCM - DPC)		DOI
IN	National Seismic Network of India	India Meteorological Department		—
IC	New China Digital Seismograph Network	Albuquerque Seismological Laboratory/USGS (ASL)		DOI
ID	Project IDA VLP Seismometer Network - UCSD/SIO/IGPP	Scripps Institution of Oceanography (SIO)		DOI
IH	Red Sismica Dominicana del INDRHI	Instituto Nacional de Recursos Hidraulicos	Dominican Republic	—
IY	Rete Sismica Unical	Universita Della Calabria, Italy		DOI
IG	Southern Spain Broadband Seismic Network	Instituto Andaluz de Geofisica, Granada University	Spain	—

Network Data API

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