Mist Systems, Inc. — 17 prefixes (MA-L)

Mist Systems, Inc. holds 17 MA-L (24-bit OUI) blocks in the IEEE registry, all registered to the same Cupertino, CA address (1601 South De Anza Blvd, Suite 248). Mist was founded in 2014 as a cloud-managed, AI-driven enterprise WLAN vendor, and was acquired by Juniper Networks in March 2019 for roughly $405M; the line is now branded Juniper Mist (Juniper itself subsequently became part of HPE). The OUIs identify enterprise Wi-Fi access points — the AP21/AP24/AP34/AP36/AP37/AP43/AP45/AP47/AP64/AP66 families spanning Wi-Fi 5 through Wi-Fi 7 — plus Mist Edge campus appliances, all managed through the Mist AI cloud platform with the Marvis virtual assistant. Many of these APs also carry a virtual BLE radio for indoor location and wayfinding. Seeing a Mist OUI in a capture reliably indicates an enterprise-grade managed access point, not consumer hardware. No MA-M or MA-S blocks are registered to Mist. As with every IEEE OUI assignment, no registration date is published: third-party tools such as maclookup.app show per-prefix dates (e.g. 2015-11-17 for 5C:5B:35), but these are database artifacts, not IEEE facts, and must not be recorded as registration dates. Mist APs have been touched only by industry-wide Wi-Fi/RADIUS protocol advisories (FragAttacks, the transmit-queue/MacStealer class, and Blast-RADIUS), never a Mist-specific hardware backdoor.

IEEE assignment

17 prefixes → Mist Systems, Inc., registered Cupertino, CA, US [Confirmed] — IEEE MA-L (cached copy)

Registry / block size

MA-L (24-bit OUI); holds 17 IEEE prefixes (each ~16M addresses) [Confirmed] — IEEE MA-L; maclookup.app/vendors/mist-systems-inc

HQ / country

1601 South De Anza Blvd, Suite 248, Cupertino, CA 95014, US [Confirmed] — IEEE MA-L. NOTE: IEEE's public OUI data publishes NO assignment/registration date; any "date registered" on third-party tools (e.g. maclookup.app showing 5C:5B:35 as 2015-11-17) is a database artifact, not an IEEE fact.

Company status

active, now operating as Juniper Mist (acquired by Juniper Networks March 2019, ~$405M; Juniper subsequently part of HPE) [Confirmed] — newsroom.juniper.net; blogs.juniper.net

Device types

enterprise Wi-Fi access points (Wi-Fi 5/6/6E/7 — AP21, AP24, AP34, AP36, AP37, AP43, AP45, AP47, AP64, AP66 families) and Mist Edge campus appliances; managed via Mist AI cloud; integrated virtual BLE radio for location/wayfinding

[Confirmed] — juniper.net/us/en/products/access-points.html; nomios.com

Verified sample prefixes (all MA-L, Mist Systems, Inc.)

5C:5B:35, D4:20:B0, 00:3E:73, 70:90:41 [Confirmed] — IEEE MA-L / maclookup.app/vendors/mist-systems-inc

Full prefix set (17, MA-L)

00:3E:73, A8:53:7D, D4:20:B0, 3C:94:FD, 00:D6:26, D4:DC:09, 5C:5B:35, 04:A9:24, A8:3A:79, 7C:B6:8D, C8:78:67, 54:33:C6, A8:F7:D9, AC:23:16, 70:90:41, 04:CD:C0, 14:A4:54 [Confirmed] — IEEE MA-L (cached copy)

MA-M / MA-S blocks

none — no Mist Systems entries in the IEEE MA-M registry (MA-M) or the IEEE MA-S registry (MA-S) [Confirmed] — IEEE cached registries

Security context

only industry-wide Wi-Fi/RADIUS protocol advisories apply, no Mist-specific backdoor — FragAttacks (CVE-2020-26139…26147, frame aggregation/fragmentation, Low severity, patched); CVE-2022-47522 (transmit-queue/MacStealer encryption bypass, insider); CVE-2024-3596 (Blast-RADIUS, RADIUS MD5 MITM, affects Mist Access Assurance RADIUS deployments)

[Confirmed] — mist.com/documentation; supportportal.juniper.net; cybersecurity-help.cz

Threat-actor / malware association

Unknown — no threat intel associates Mist OUIs with malicious infrastructure; a Mist OUI indicates legitimate enterprise managed Wi-Fi [Confirmed as no known association]

IANA Reference

(blank — OUI/MA-L registrations carry no IANA RFC reference) [Unknown]

Related vendors

Juniper Networks (parent since 2019); HPE (ultimate parent)

Analyst note

a Mist OUI on a globally-administered address identifies a genuine enterprise Juniper Mist access point; the third-party per-prefix "dates" are not IEEE registration dates and must not be published as such.