Global Rapid Advanced Network Devoted to the Multi-messenger AddictsA network of robotic telescopes connected all over the worldwith both photometry and spectrometry capabilities for Time-domain Astronomy.OPDSOARGMG-2.4mIRiSLesMakes 60OHP-T120TRTCFHTTAROT CalerneTAROT ChileTAROT RéunionXinglong-2.16mZadkoTNTAbastunami-T70Abastunami-T48OAJOSNCAHAShAO-T60ShAO-2-mFRAM-CTA-NFRAM-AugerVIRTTerskolTibet-50UBAI-SUBAI-NLisnykyPic du Midi Observatory