NXP Semiconductors — 3 prefixes (MA-L)

A MAC address starting with AC:9A:22, E0:51:24, or 00:60:37 belongs to NXP Semiconductors, typically seen on microcontrollers, application processors, or wireless connectivity chips (NFC, UWB, BLE, Zigbee, Thread, Wi-Fi) embedded in a wide range of end-product hardware rather than on a single consumer device category.

NXP Semiconductors N.V. (NASDAQ: NXPI) is a Netherlands-headquartered multinational semiconductor company, spun off from Philips Semiconductors in 2006. Its 2015 acquisition of Freescale Semiconductor explains why two of the three "NXP Semiconductors" prefixes carry the former Freescale San Jose, CA address rather than the Eindhoven group HQ.

These three prefixes are distinct from sibling OUI entries already in the enrichment pipeline: vendor-nxp (Freescale legacy 00:04:9F plus NXP Tianjin), vendor-nxp-semiconductors-taiwan, and vendor-nxp-semiconductor-tianjin. Because an OUI identifies the silicon vendor rather than the device brand, the same NXP prefix can appear on gear sold under many different manufacturer names.

IEEE assignment

3 prefixes (AC:9A:22, E0:51:24, 00:60:37) → "NXP Semiconductors", registered San Jose CA (x2) and Eindhoven NL (x1) [Confirmed] — IEEE the IEEE MA-L registry (cached copy)

Registry / block size

MA-L (24-bit OUI); this entry covers 3 of 60+ MA-L assignments held across all NXP-related registrant entities (NXP Semiconductors Taiwan Ltd., NXP Semiconductor (Tianjin) LTD., NXP USA Inc, NXP India Private Limited, NXP France Semiconductors France, etc.) [Confirmed] — IEEE the IEEE MA-L registry

HQ / country

High Tech Campus 32, Office 1.21, SAF AD, NL 13456 (group HQ); two of the three prefixes registered to 411 E. Plumeria Drive, San Jose, CA 95134, US (legacy Freescale address) [Confirmed] — IEEE the IEEE MA-L registry

Company status

active, public (NASDAQ: NXPI) [Confirmed] — SEC 10-K FY2024

Device types

microcontrollers, i.MX application processors, wireless connectivity SoCs, analog/interface products, RF devices, security controllers, automotive/industrial sensors [Confirmed] — nxp.com

Notable products

i.MX 95 application processors, Ara240 edge-AI NPUs (2026 releases) [Confirmed] — nxp.com, electronicdesign.com

Verified prefixes (all MA-L, exact registrant "NXP Semiconductors")

AC:9A:22, E0:51:24, 00:60:37 [Confirmed] — IEEE the IEEE MA-L registry

Corporate history

spun off from Philips Semiconductors in 2006; acquired Freescale Semiconductor in 2015, ~$13B FY2024 revenue [Confirmed] — en.wikipedia.org, SEC filings

Security context

CVE-2022-22819 (buffer overflow in MCU ROM SB2 loader, select LPC and i.MX RT devices, via malformed SB2 update/recovery header); CVE-2022-45163 (i.MX SDP_READ_DISABLE fuse bypass allowing physical-access retrieval of confidential DDR/NVM-mapped assets). Kr00k (CVE-2019-15126) does NOT apply to NXP — it affects Broadcom/Cypress Wi-Fi chips; no source names NXP among affected vendors

[Confirmed] — NXP Security Bulletin (MCU_SB2_loader PDF), nccgroup.com, cvedetails.com, en.wikipedia.org/wiki/Kr00k

Registration dates

not published — IEEE the IEEE MA-L registry carries no assignment/registration date for AC:9A:22, E0:51:24, or 00:60:37; any third-party "date registered" is a database ingestion artifact, not an IEEE fact [Confirmed] — IEEE the IEEE MA-L registry

Related vendors

vendor-nxp (Freescale legacy 00:04:9F + NXP Tianjin), vendor-nxp-semiconductors-taiwan, vendor-nxp-semiconductor-tianjin — separate DONE entries in this pipeline [Confirmed] — enrichment masters

Analyst note

an NXP OUI identifies the chipset vendor, not the end-product brand — the same prefix can surface on hardware sold under many different manufacturer names [Confirmed] — consistent with sibling entry vendor-nxp