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International recognition as ISO/IEC/IEEE 32857:2026 removes procurement barriers for utilities and smart cities, accelerating the adoption of standards-based wireless mesh networking.
The Wi-SUN Alliance, the global ecosystem promoting open, secure, and interoperable wireless mesh networking for utilities and smart cities, announced that the Wi-SUN Field Area Network (FAN) specification has been formally ratified as ISO/IEC/IEEE 32857:2026. The Alliance claims this makes Wi-SUN FAN the first wireless mesh networking specification adopted as an ISO/IEC standard and provides utilities, municipalities, and infrastructure operators with an internationally recognized framework for wireless mesh networking.
Wi-SUN technology already supports some of the world’s largest utility networks, including nationwide smart metering deployments in Japan and large-scale smart grid projects across North America, Europe, and Asia-Pacific. For utilities and municipalities, ISO/IEC standardization removes a significant procurement barrier, as procurement officers and regulators can now reference an internationally ratified specification when evaluating or mandating smart grid and smart city connectivity solutions.
Founded in Japan in 2011 and now comprising more than 300 member organizations across 46 countries, the Wi-SUN Alliance provides the testing and certification program for this new ISO/IEC specification. Global certification programs support large-scale connectivity for critical infrastructure, smart cities, utilities, and industrial applications worldwide.
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