SIPNOC 2026 (SIP Network Operators Conference) will be held from September 15–17, 2026, at Hyatt Regency Dulles in Herndon, Virginia, USA. Organized by the SIP Forum, this premier telecommunications conference brings together service providers, network operators, government agencies, technology vendors, enterprises, and industry experts to discuss the latest developments in SIP-based communications and the call authentication ecosystem. The three-day program covers critical topics including STIR/SHAKEN, robocall mitigation, caller ID spoofing prevention, branded calling, rich call data, SMS text authentication, IP interconnection, regulatory updates, fraud prevention, and emerging communications technologies.