International Federation of Digital Seismograph Networks

Network Codes

The following network codes are assigned by the FDSN archive (IRIS DMC) to provide uniqueness to seismological data streams.

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Network Code Network Name Operated By Deployment DOI
N4 Central and Eastern US Network
  • UC San Diego
United States of America DOI
NA Caribbean Netherlands Seismic Network Caribbean Netherlands DOI
NB Northeastern Brazil UFRN
  • Universidade Federal do Rio Grande do Norte (UFRN Brazil)
NC USGS Northern California Network
  • USGS Menlo Park
United States of America DOI
ND New CaleDonia Broadband Seismic Network
  • Centre IRD de Noumea, Nouvelle-Caledonie
New Caledonia DOI
NE New England Seismic Network North East United States DOI
NF North Fork Valley Seismic Network
  • National Institute for Occupational and Health (NIOSH WA,USA)
United States of America
NG Reserved for Papua New Guinea Seismic Network
NH Geological Survey of North Rhine - Westphalia Germany
NI North-East Italy Broadband Network
  • OGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale) and University of Trieste (OGS & UniTS)
Italy DOI
NJ Nigerian National Network of Seismographi Stations (NNNSS)
  • Centre for Geodesy and Geodynamics (CGG)
Nigeria DOI
NK Nepal Kathmandu Nepal DOI
NL Netherlands Seismic and Acoustic Network Netherlands DOI
NM Cooperative New Madrid Seismic Network
  • Saint Louis University
United States of America
NN Nevada Seismic Network United States of America DOI
NO Norwegian Seismic Array Network Norway
NP United States National Strong-Motion Network
  • U.S. Geological Survey
United States of America DOI
NQ NetQuakes
  • U.S. Geological Survey
United States of America DOI
  • Utrecht University (UU Netherlands)
Multiple Countries DOI
NS Norwegian National Seismic Network
  • University of Bergen (UiB Norway) Inst of Geophysics
NT USGS Geomagnetism Program United States of America DOI
NU Nicaraguan Seismic Network Nicaragua DOI
  • Geological Survey of Canada
NW Northwestern University Seismic Network
  • Northwestern University
United States of America
NX Nanometrics Research Network Canada DOI
NY Yukon-Northwest Seismic Network
  • University of Ottawa (uOttawa Canada)
Canada DOI
NZ New Zealand National Seismograph Network
  • Institute of Geological & Nuclear Sciences Ltd (GNS New Zealand)
New Zealand
  • 27 networks

Network Data API

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