Wi-SUN FAN becomes first wireless mesh standard adopted by ISO/IEC

The Wi-SUN Alliance says its Field Area Network specification has been ratified as ISO/IEC/IEEE 32857:2026, giving utilities and smart-city operators a globally recognized standard for wireless mesh networking. The designation is meant to cut procurement friction and speed deployment of interoperable critical-infrastructure networks.

Why it matters: - ISO/IEC/IEEE 32857:2026 gives utilities, municipalities and infrastructure operators a globally recognized reference for wireless mesh networking. - The standard can reduce procurement barriers for smart grid and smart city projects. - The designation may help accelerate adoption of interoperable, standards-based field-area networks for critical infrastructure.

What happened: - The Wi-SUN Alliance announced that the Wi-SUN Field Area Network specification has been formally ratified as ISO/IEC/IEEE 32857:2026. - The designation makes Wi-SUN FAN the first wireless mesh networking specification adopted as an ISO/IEC standard. - The announcement came from Beaverton, Oregon, on July 7, 2026. - The Wi-SUN Alliance describes itself as a global ecosystem for open, secure and interoperable wireless mesh networking for utilities and smart cities.

The details: - Only 3% of IEEE-originated specifications receive ISO/IEC joint recognition. - Wi-SUN Alliance President and CEO Phil Beecher said the recognition signals to procurement officials, regulators and policymakers that the technology has been vetted at a high level. - Beecher said 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. - Beecher said the new standard gives utilities, municipalities and infrastructure providers an internationally recognized standard they can reference when planning critical infrastructure. - Gary Stuebing, Past Chair of the Entity Collaborative Activities Governance Board at IEEE SA, said the Wi-SUN FAN specification followed a rigorous, consensus-driven technical process. - Stuebing said the standard was built to support global interoperable, certifiable solutions at scale. - The Wi-SUN Alliance says it provides the definitive testing and certification program for the specification. - The certification program is designed to help ensure products are compliant and fully interoperable in multi-vendor deployments. - The alliance says Wi-SUN FAN is built on open, IEEE 802.15.4-based specifications. - The alliance says the technology enables secure, scalable and resilient mesh networks for utility-scale infrastructure. - The Wi-SUN Alliance says it has more than 350 member companies across 46 countries. - More information is available in the company's certification page. - The alliance also links to its website.

Between the lines: - ISO/IEC recognition can make a technical specification easier for procurement teams and regulators to adopt. - The joint standardization also signals broader market credibility for a technology already used in large deployments. - The certification and interoperability emphasis suggests Wi-SUN is positioning itself as a multi-vendor infrastructure standard, not just a networking profile.

What's next: - Utilities, municipalities and infrastructure agencies may begin citing ISO/IEC/IEEE 32857:2026 in future procurements and mandates. - The Wi-SUN Alliance is likely to use the new standard to push wider adoption of certified, interoperable mesh networking products. - Product vendors may seek certification to align with the ISO/IEC-recognized specification.

The bottom line: - Wi-SUN FAN’s ISO/IEC adoption turns a niche wireless mesh specification into a globally recognized standard for critical infrastructure networking.