Dear colleagues, RIPE NCC and ICANN are pleased to invite you the Internet Measurement Day on 18 June. The event is hosted by the Technical University Sofia at Hall "Tech Arena", Studentski Kompleks, ul. Rosario 1. The Internet Measurement Day brings together network operators, ccTLDs, researchers, students, regulators and other stakeholders from the local technical community. We will explore the resilience, stability and performance of the Internet, including practical discussions and demonstrations using measurement tools such as RIPE Atlas, the ITHI Metrics, RIS, RPKI and RIPE NCC’s open data platform RIPEstat. For more information, the agenda and registration please visit: https://www.ripe.net/s/imd-sofia-2026/ Participation is free, but registration is required. I kindly encourage you to register early to help us with planning and logistics. I hope to see many of you there! Best regards, Gergana Petrova Community Development RIPE NCC