MAC address vendor

Integrated Device Technology, Inc. — 2 prefixes (MA-L)

Primary prefix
00E0CF
Block
MA-L
Status
Acquired

Summary

// what this is
Integrated Device Technology is registered to MAC prefix 00E0CF and 1 more in the IEEE OUI database. When a device's MAC address begins with 00E0CF, that block was registered by Integrated Device Technology — the OUI identifies the maker of the network hardware, which is not always the brand on the device. Integrated Device Technology was acquired; the registration remains on record with IEEE.
// analyst note
A MAC starting 00:E0:CF or 00:D0:A2 identifies genuine IDT-issued hardware under this two-block registrant string; company substance is corroborated by IDT's documented acquisition history and by the related 40-block Malaysia subsidiary, not treated as a bare shell registration. No datasheet ties either specific prefix to a named part number, so the device-class link is inferential, not confirmed.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: Medium

A MAC address starting with 00:E0:CF or 00:D0:A2 belongs to Integrated Device Technology, Inc. (IDT), a US semiconductor company headquartered in San Jose and Santa Clara, California, and is typically seen on IDT-manufactured embedded and networking silicon — MIPS-based system-on-chip processors, ATM/TDM switches, high-speed PHYs, and communications ASSPs with on-die Ethernet MAC capability.

The IEEE MA-L registry lists exactly two blocks under the org-name string "INTEGRATED DEVICE": Assignment 00E0CF (address 6024 Silver Creek Valley Road, San Jose, CA 95138) and Assignment 00D0A2, where the trailing words "TECHNOLOGY, INC." of the company's legal name spilled into the Address field instead of Organization Name. The live IEEE RA REST endpoint returns the identical split, confirming this is an artifact of IEEE's own registration record, not a local copy error.

IDT was founded in 1980, was formerly NASDAQ-listed as IDTI, and was acquired by Renesas Electronics — the deal was announced in September 2018 and completed March 30, 2019, after which IDT no longer operated as an independent company. This registrant string is distinct from the already-cataloged Integrated Device Technology (Malaysia) Sdn. Bhd., IDT's Penang manufacturing subsidiary, which holds a separate 40-block MA-L allocation under its own registrant string.

No vendor datasheet was found naming either 00:E0:CF or 00:D0:A2 as the assigned prefix for a specific part number, so the device-class link above is inferred from IDT's product line rather than confirmed by prefix-level documentation. No CVE, security advisory, or malware-family association names either prefix, or "Integrated Device Technology," as of an August 2026 search.

IEEE assignment
2 prefixes (00E0CF, 00D0A2) under registrant string "INTEGRATED DEVICE" (legal entity: Integrated Device Technology, Inc.) [Confirmed] — the IEEE MA-L registry 00E0CF, the IEEE MA-L registry 00D0A2
Registry / block size
MA-L (24-bit OUI); no MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) assignments found for this registrant string [Confirmed] — the IEEE MA-M registry, the IEEE MA-S registry
Registered addresses
00:E0:CF → 6024 Silver Creek Valley Road, San Jose, CA 95138, US; 00:D0:A2 → Santa Clara, CA 95054, US (legal-name tail "TECHNOLOGY, INC." spilled into the Address field on this row, confirmed in the live IEEE RA REST record) [Confirmed] — the IEEE MA-L registry 00D0A2, https://services13.ieee.org/RST/standards-ra-web/rest/assignments/?registry=MA-L&text=00D0A2
Company status
Acquired by Renesas Electronics; deal announced September 2018, completed March 30, 2019; IDT no longer operates as an independent company [Confirmed] — https://www.renesas.com/en/about/press-room/renesas-completes-acquisition-integrated-device-technology-0
Company background
Founded 1980, formerly NASDAQ-listed (IDTI), headquartered San Jose/Santa Clara, CA [Confirmed] — https://en.wikipedia.org/wiki/Integrated_Device_Technology
Device types
Embedded/networking semiconductor silicon — MIPS-based SoC processors with on-die Ethernet MAC (e.g. RC32334, introduced ~2000), ATM switches, TDM/TSI switches, high-speed PHYs, communications FIFOs [Likely] — https://www.embeddedtechnology.com/doc/idt-integrated-device-technology-inc-0001, https://grokipedia.com/page/Integrated_Device_Technology
Notable products
RC32334 MIPS-based SoC (broadband router/gateway silicon); no datasheet confirms either OUI as the assigned prefix for a specific part [Likely] — https://www.embeddedtechnology.com/doc/idt-integrated-device-technology-inc-0001
Related entity
Integrated Device Technology (Malaysia) Sdn. Bhd. — Penang manufacturing subsidiary, separate 40-block MA-L allocation under a distinct registrant string [Confirmed] — /mac/vendor/integrated-device-technology-malaysia-sdn-bhd/
Third-party date caveat
maclookup.app displays "initial registration" dates of 22 April 1998 (00E0CF) and 09 November 2000 (00D0A2); these are third-party database artifacts, not IEEE facts — IEEE's the IEEE MA-L registry (header: Registry, Assignment, Organization Name, Organization Address) publishes no assignment-date field
[Confirmed] — the IEEE MA-L registry, https://maclookup.app/macaddress/00E0CF, https://maclookup.app/macaddress/00D0A2
Security context
No CVE, security advisory, or malware-family association naming either prefix or "Integrated Device Technology" found as of an August 2026 search [Likely] — dated negative finding, no single source (general web search)
Analyst note
This 2-block registrant string is corroborated as a real, identifiable company — not an anonymous shell — by its documented acquisition history and by the related 40-block Malaysia subsidiary under the same corporate parent; no prefix-to-product datasheet match was found, so the device-class link is inferred from IDT's product line rather than confirmed
[Likely] — https://en.wikipedia.org/wiki/Integrated_Device_Technology, /mac/vendor/integrated-device-technology-malaysia-sdn-bhd/
[ 02 ] — OUI prefixes

Assignments by IEEE.

2
// registered prefixes2
  1. 00:E0:CFMA-L
  2. 00:D0:A2MA-L
[ 03 ] — Related

Keep digging.