Semtech — 1 prefix (MA-L); LoRa/RF silicon, near-negative MAC footprint (LoRa uses DevEUI), Sierra Wireless parent

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.