SEVAN
Aragats Space Environmental Center, Alikhanian Physics Institute

AFINSA
Universidade Presbiteriana Mackenzie - Sao Paulo, Brazil

SAVNET
Presbyterian Mackenzie University - Sao Paulo, Brazil

African Dual Frequency GPS Network
CETP&CNRS

Solar Flares detected by Ionospheric Effects SOFIE
Institute of Communications and Navigation at DLR Neustrelitz

Global Ionosphere Flare Detection System GIFDS
German Aerospace Center

CHAIN / Kyoto University

GMDN / Shinsu University

MAGDAS / ICSWSE, Kyushu University

OMTIs / Nagoya University

CALLISTO
Institute of Astronomy, ETH-Zentrum in Zurich

AMBER / University of California - Los Angeles

AWESOME&SID / Stanford University

All-Sky Imaging Network BU_ASI / Boston University

CIDR / University of Texas at Austin

Realistic Ionosphere RI / University of Massachusetts Lowell

RENOIR / University of Illinois

SCINDA / Air Force Research Laboratory (AFRL)