Microchip Technologies Inc — 5 prefixes (4× MA-L + 1× MA-S); a second Microchip registrant string

A MAC address beginning with 74:C9:0F, 2C:FE:8B, 74:D5:C6, or 8C:71:12 — or falling inside the 8C:1F:64:BE:A0/36 sub-block — belongs to Microchip Technology Incorporated (NASDAQ: MCHP), the Chandler, Arizona semiconductor maker, registered here under the exact IEEE string "Microchip Technologies Inc" (plural, no period).

This is not a separate company from vendor-microchip. It's a second IEEE registrant-string variant of the same business, which elsewhere holds the singular "Microchip Technology Inc." registration plus the legacy "Atmel Corporation" string. All three share the identical registered address, 2355 W Chandler Blvd, Chandler, AZ 85224.

Microchip's product line explains why this MAC could turn up almost anywhere: PIC and AVR microcontrollers, embedded Wi-Fi/Bluetooth modules such as the MRF24WN0 series, and MAC-address serial EEPROM/Flash parts that third-party device makers burn Microchip-issued addresses into. No independent web sighting ties any of this entry's five specific blocks to a named product model yet — the company identity is solid, the per-device mapping is not.

One block needs care in rendering: 8C:1F:64 is an IEEE-shared /24 base sub-allocated in /36 pieces to thousands of unrelated registrants, so only the full 8C:1F:64:BE:A0/36 sub-block identifies Microchip — never the bare base. maclookup.app also shows an "Initial registration" date (e.g. 10 May 2024) for some of these blocks; that is its own database timestamp, not an IEEE assignment fact, since IEEE publishes no OUI registration dates.

IEEE assignment

"Microchip Technologies Inc" (plural, no period), registered 2355 W Chandler Blvd, Chandler, AZ, US 85224-6199 [Confirmed] — the IEEE MA-L registry, the IEEE MA-S registry (IEEE-sourced mirrors)

Registry / block size

MA-L ×4 (24-bit) + MA-S ×1 (36-bit sub-allocation of a shared IEEE base) [Confirmed] — the IEEE MA-L registry, the IEEE MA-S registry

HQ / country

2355 W Chandler Blvd, Chandler, AZ 85224-6199, US (same address used by the "Microchip Technology Inc." and legacy "Atmel Corporation" registrant strings) [Confirmed] — the IEEE MA-L registry

Company status

active; publicly traded, NASDAQ: MCHP; same corporate family as vendor-microchip [Confirmed] — microchip.com

Device types

microcontrollers (PIC/AVR), embedded Wi-Fi/BT modules, MAC-address serial EEPROM/Flash [Confirmed] — microchip.com/en-us/products/wireless-connectivity/embedded-wi-fi, microchip.com/en-us/products/memory/serial-eeprom/mac-address-and-unique-id-eeprom

Notable products

PIC/AVR MCUs, MRF24WN0-series Wi-Fi modules, MAC-address & unique-ID EEPROM [Confirmed] — microchip.com

Verified prefixes

74:C9:0F, 2C:FE:8B, 74:D5:C6, 8C:71:12 (MA-L); 8C:1F:64:BE:A0/36 (MA-S, sub-allocation of shared base 8C:1F:64) [Confirmed] — the IEEE MA-L registry, the IEEE MA-S registry

Special note

this registrant string is a name-spelling variant, not a distinct company — alias with vendor-microchip (singular "Microchip Technology Inc." + legacy "Atmel Corporation"). Third-party "Initial registration" dates seen on lookup tools are database artifacts, not IEEE facts; IEEE publishes no OUI assignment dates. [Confirmed]

Related vendors

Microchip Technology Inc. (vendor-microchip, singular spelling, 15 MA-L blocks); Atmel Corporation (legacy, covered in vendor-microchip); Microchip Technology Germany II GmbH&Co.KG (separate MA-S registrant, 70:B3:D5:77:F/36) [Confirmed] — the IEEE MA-L registry, the IEEE MA-S registry

Analyst note

treat a match on this entry as a chipset/module signal — embedded Wi-Fi, an MCU, or a MAC-EEPROM part — rather than proof of a Microchip-branded end device, consistent with vendor-microchip's chipset-not-brand guidance.