Semtech holds a single MA-L block — 00:16:C0 — registered as "Semtech Corporation" at 200 Flynn Rd, Camarillo, California. These OUIs would appear on LoRa RF transceivers and power/protection ICs, and — via Sierra Wireless, which Semtech acquired (completed 2023-01-12 at $31.00/share, ~$1.2B enterprise value) — on cellular modules and AirLink gateways. The MAC footprint is near-negative for a structural reason: LoRa transceiver chips are the physical layer behind LoRaWAN but typically do not carry an Ethernet MAC, and LoRaWAN endpoints use a 64-bit DevEUI namespace that is separate from the 48-bit MAC address space. Semtech-branded device MACs are therefore rare. Sierra Wireless, covered in a prior batch, is the cellular-module and gateway arm — cross-reference it rather than redoing it. For triage, a Semtech OUI is uncommon in MAC tables; LoRa devices are more often identified by DevEUI in LoRaWAN network servers than by an Ethernet MAC, and any Sierra Wireless gear seen now has Semtech as its parent.
- IEEE assignment
- 1 prefix → "Semtech Corporation" (00:16:C0), registered Camarillo, CA [Confirmed] — IEEE MA-L
- Registry / block size
- MA-L; 1 block [Confirmed] — maclookup.app (IEEE-sourced)
- HQ / country
- 200 Flynn Rd, Camarillo, CA 93012, US [Confirmed] — maclookup.app
- Company status
- active; completed acquisition of Sierra Wireless 2023-01-12 ($31.00/share, ~$1.2B enterprise value) [Confirmed] — Semtech press release / SEC Form 6-K
- Device types
- LoRa RF transceivers, power/protection ICs; via Sierra Wireless, cellular modules and AirLink gateways [Confirmed] — semtech.com
- Notable products
- SX127x/SX126x LoRa transceivers, LoRa Edge; Sierra Wireless AirLink routers
- Verified prefix
- 00:16:C0 (MA-L) [Confirmed] — maclookup.app
- Special note
- Near-negative MAC footprint. LoRa transceiver chips are the physical layer behind LoRaWAN but typically don't carry an Ethernet MAC; LoRaWAN endpoints use a 64-bit DevEUI namespace, separate from the 48-bit MAC space. Sierra Wireless (prior batch) is the cellular arm — cross-reference, don't redo. The IEEE registry publishes no assignment dates, so none is stated here. [Confirmed]
- Related vendors
- Sierra Wireless (subsidiary since 2023)
- Analyst note
- A Semtech OUI is uncommon in MAC tables; LoRa devices are more often identified by DevEUI in LoRaWAN network servers than by an Ethernet MAC. If you see Sierra Wireless gear, its parent is now Semtech.