FDSN

   International Federation of Digital Seismograph Networks

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FDSN Network Code Request

A Network Code is a 1 or 2 character identifier that is assigned by the International Federation of Digital Seismograph Networks (FDSN) to provide uniqueness to seismological data streams. Permanent networks are assigned a Network Code that never changes. Temporary networks are assigned a Network Code using the following convention: the Network Code begins with the letter X, Y or Z; or a number 1 through 9 and is then followed by another letter. These codes are only valid for specific years and can be recycled in subsequent years for another temporary experiment.


PASSCAL or EarthScope USArray Flexible Array experiment