Ring LLC — 13 prefixes (MA-L)

Ring LLC holds 13 distinct MA-L OUI blocks in the IEEE registry, registered under two addresses: 1523 26th St, Santa Monica, CA (9 blocks) and 12515 Cerise Ave, Hawthorne, CA (4 blocks) — respectively Ring's original headquarters and its Amazon-era address. Ring is the smart-home video doorbell and security-camera maker (Ring Video Doorbell, Stick Up Cam, Floodlight Cam, Spotlight Cam, Ring Alarm) acquired by Amazon in 2018 for roughly $1B, and it runs the companion "Neighbors" app. Thirteen separate MA-L assignments plus an identifiable, actively-shipping consumer product line clears the bar for company substance well beyond a bare single-OUI registration, so this consolidates cleanly into one vendor entry rather than 13 near-duplicate pages. A practical caveat: some Ring SKUs use third-party Wi-Fi/BLE radio modules, so a subset of Ring hardware may present a non-Ring OUI on the network — absence of a Ring prefix does not rule out a Ring device. As with all OUI data, IEEE publishes no assignment/registration date for any of these 13 blocks.

IEEE assignment

13 MA-L prefixes → "Ring LLC" [Confirmed] — the IEEE MA-L registry

Registry / block size

MA-L (24-bit OUI) only; no MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) blocks found under this organization name [Confirmed] — the IEEE MA-M registry, the IEEE MA-S registry

Registered addresses

two distinct addresses — 1523 26th St, Santa Monica, CA 90404, US (9 blocks: 54E019, 5C475E, 9C7613, 343EA4, 187F88, 649A63, 90486C, 242BD6, 50E467) and 12515 Cerise Ave, Hawthorne, CA 90250, US (4 blocks: AC9FC3, CC3BFB, C4DBAD, 00B463) [Confirmed] — the IEEE MA-L registry

Data anomalies (reproduced verbatim, not corrected)

C4DBAD's zip field reads "12515" (matching the street number) instead of "90250"; 00B463's state field is blank [Confirmed] — the IEEE MA-L registry

Company status

active, wholly-owned Amazon subsidiary since 2018 [Confirmed] — https://en.wikipedia.org/wiki/Ring_(company), https://ring.com/

Device types

video doorbells, Stick Up/Floodlight/Spotlight security cameras, Ring Alarm sensors/base station [Likely] — community.ring.com identification threads, netify.ai vendor lookup

Company substance verdict

SUBSTANTIVE — 13 OUI assignments + identifiable, actively-marketed consumer product line + Amazon acquisition, well past a bare single-OUI shell [Confirmed] — https://en.wikipedia.org/wiki/Ring_(company)

Security context

general IoT-camera account-security risk profile — 2019-era credential-stuffing camera-hijacking incidents/litigation, an older Ring Android app flaw (unencrypted data, patched); no specific CVE confirmed for this pass [Likely] — https://www.iotforall.com/huge-vulnerability-discovered-ring-doorbell, https://www.cfo.com/news/ring-suit-alleges-cameras-vulnerable-to-hackers/657053/

Allocated date

Unknown/null — IEEE's the IEEE MA-L registry publishes only Registry, Assignment, Organization Name, Organization Address; no assignment date exists for any of these 13 blocks; a third-party "registered March 1, 2019" date seen for 54:E0:19 on maclookup.app is a database artifact, not an IEEE fact

[Confirmed] — the IEEE MA-L registry

Related vendors

Amazon.com, Inc. (parent company since 2018) [Confirmed] — https://en.wikipedia.org/wiki/Ring_(company)

Analyst note

Some Ring SKUs source Wi-Fi/BLE radios from third parties (e.g. Texas Instruments), so a subset of Ring devices may present a non-Ring OUI; don't rely on OUI alone to rule out a Ring device.