3 Phoenix, Inc. (00:18:40) MAC Address Vendor Lookup

A MAC address starting with 00:18:40 belongs to 3 Phoenix, Inc., a Chantilly, Virginia defense-electronics contractor, and is typically seen on specialist sonar, radar, and electronic-warfare networking hardware rather than consumer or general-enterprise gear.

3 Phoenix, Inc. was founded in 2003 and supplied the U.S. Department of Defense, primarily the Navy, with sonar signal-processing systems, acoustic-telemetry modems, and imaging subsystems. Trade-press coverage of the Navy's TB-29A iPEN (inverted Passive Electrical Network) towed-array data-fusion program describes networked equipment using fast Ethernet, Gigabit Ethernet, and SONET OC-3/OC-12 links, consistent with hardware that would carry an Ethernet MAC OUI.

Ultra Electronics Holdings plc acquired 3 Phoenix in February 2014 for approximately 70 million dollars, and the business continued operating as "Ultra Electronics - 3 Phoenix" at the same Chantilly address. A 2016 GAO bid-protest decision names Ultra Electronics - 3 Phoenix as the protester on a Navy towed-array sonar cable procurement, confirming the company remained an active, named government contractor years after the acquisition.

No security advisory, CVE, or malware association naming 3 Phoenix or Ultra Electronics - 3 Phoenix was found as of a September 2026 search. Given the equipment is DoD-specific rather than consumer-facing, this absence from public vulnerability databases is expected and is recorded here as a sourced Unknown, not a clean bill of health.

Registry class

MA-L (00:18:40, /24 block)

Registered address

14585 Avion Parkway, Chantilly, Virginia, US 20151

Business

Defense-electronics contractor founded 2003, supplying Navy sonar, radar, electronic-warfare, and acoustic-telemetry systems

Corporate status

Acquired by Ultra Electronics Holdings plc in February 2014 (~$70M); continued as "Ultra Electronics - 3 Phoenix" at the same address

Device class

Sonar signal-processing and data-fusion modules, acoustic-telemetry units, modems for Ethernet/SONET-networked defense systems

Other OUI assignments

None found under "3 Phoenix, Inc." in the IEEE registry; this is the only MA-L, MA-M, or MA-S block registered to the company

Vendor / Organization

3 Phoenix, Inc. [Confirmed] (the IEEE MA-L registry 001840)

Registry class

MA-L [Confirmed] (the IEEE MA-L registry 001840)

Registered address

14585 Avion Pkway, Chantilly, Virginia, US 20151 [Confirmed] (the IEEE MA-L registry 001840)

Total prefix count

1 (single MA-L assignment; no other rows found under this company name in the IEEE MA-L registry, the IEEE MA-M registry, or the IEEE MA-S registry) [Confirmed] (the IEEE MA-L registry searched; the IEEE MA-M registry searched; the IEEE MA-S registry searched)

Business description

Defense-electronics contractor, founded 2003, sonar/radar/EW/acoustic-telemetry systems for the U.S. Navy [Likely] (https://www.militaryaerospace.com/computers/article/16719232/navy-looks-to-3-phoenix-to-provide-data-fusion-sonar-signal-processing-for-submarines-and-ships)

Acquisition

Acquired by Ultra Electronics Holdings plc, February 2014, ~$70 million [Likely] (https://www.washingtontechnology.com/2014/02/ultra-acquires-3-phoenix-in-70m-deal/344573/)

Post-acquisition activity

Named as "Ultra Electronics - 3 Phoenix" protester in a Navy towed-array sonar cable procurement, decided 2016-07-25 [Likely] (https://www.gao.gov/products/b-412998)

Registration date

Unknown - IEEE publishes no registration date for OUI assignments [Unknown] (no source)

Security / malware association

None found as of a September 2026 search [Unknown] (no source)