Posted:
System Upgrade 2026-07-02
The fdsn.org website will undergo a scheduled upgrade on 2026-07-02. Some operations may be paused during the process, and live data such as user sessions may be reset.
This message will be updated with details as the update time approaches.
Network Codes
The following network codes are assigned by the FDSN to facilitate unique identifiers for seismological data streams.
Request a new network code (requires login)
Generate citations for network data
- Show network types:
-
Show only network codes starting with:
-
Search for network code or name:
Network Data API
The network data shown here is also available programmatically through a web service API.