Cambium holds about 9 MA-L blocks registered as "Cambium Networks Limited" at Unit B2, Linhay Business Park, Ashburton, Devon, GB — the UK operating subsidiary (Companies House #07752773), even though the corporate HQ is in Rolling Meadows, IL. Verified samples include 00:04:56, 30:CB:C7, 58:C1:7A, 90:6D:62, B4:A2:5C, BC:E6:7C, and FC:11:65. These OUIs appear on point-to-point/point-to-multipoint wireless backhaul (ePMP, PMP 450), fixed-wireless broadband subscriber modules, enterprise Wi-Fi (cnPilot / Xirrus), and cnMatrix switches. Cambium was spun off from Motorola Solutions on 28 October 2011 — the former Canopy (PMP) and Orthogon (PTP) wireless-broadband businesses, in an acquisition funded by Vector Capital — IPO'd on NASDAQ (CMBM) in June 2019, and acquired Xirrus Wi-Fi from Riverbed on 8 August 2019. The Nasdaq-listed parent is Cambium Networks Corporation (Cayman-incorporated), while the IEEE registrant is the UK operating subsidiary. For triage, a Cambium OUI is a strong signal of a WISP/fixed-wireless deployment (backhaul or subscriber modules) or enterprise Wi-Fi/switching.
- IEEE assignment
- ~9 prefixes → "Cambium Networks Limited" (UK operating subsidiary), registered Ashburton, Devon, GB [Confirmed] — IEEE MA-L
- Registry / block size
- MA-L; ~9 blocks [Confirmed] — maclookup.app (IEEE-sourced)
- HQ / country
- registrant Unit B2, Linhay Business Park, Ashburton, Devon TQ13 7UP, GB; corporate HQ Rolling Meadows, IL, US [Confirmed] — hwaddress.com, find-and-update.company-information.service.gov.uk
- Company status
- active; spun off from Motorola Solutions 2011-10-28 (former Canopy/Orthogon businesses, via Vector Capital); IPO'd NASDAQ (CMBM) June 2019; acquired Xirrus 2019-08-08 [Confirmed] — sec.gov, cambiumnetworks.com
- Device types
- PTP/PMP wireless backhaul (ePMP, PMP 450), fixed-wireless broadband, enterprise Wi-Fi (cnPilot/Xirrus), cnMatrix switches [Confirmed] — maclookup.app
- Notable products
- ePMP, PMP 450, cnPilot, cnMatrix, Xirrus
- Verified prefix sample
- 00:04:56, 30:CB:C7, 58:C1:7A, 90:6D:62, B4:A2:5C, BC:E6:7C, FC:11:65 [Confirmed] — maclookup.app
- Special note
- Registrant address is UK even though corporate HQ is US — note this discrepancy. The IEEE registry publishes no assignment dates, so none is stated here. [Confirmed]
- Related vendors
- Motorola Solutions (former parent); Xirrus (acquired); Vector Capital (former PE owner)
- Analyst note
- A Cambium OUI = WISP/fixed-wireless backhaul, subscriber modules, or enterprise Wi-Fi/switching — a strong signal of a WISP or campus fixed-wireless deployment.