Adtran — 15 prefixes (MA-L); broadband/access & optical networking, OUI = brand (often ISP-supplied)
Summary
- // what this is
- Adtran is registered to MAC prefix
00:A0:C8and 14 more in the IEEE OUI database. When a device's MAC address begins with00:A0:C8, that block was registered by Adtran — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- An Adtran OUI maps to the brand; in a home/SMB network it's frequently ISP-supplied access equipment (an ONT or gateway), and in carrier/enterprise contexts it's access or optical-transport gear.
About this vendor.
Adtran holds about 15 MA-L blocks registered as "Adtran Inc" at 901 Explorer Blvd., Huntsville, Alabama, covering roughly 251.7 million addresses. Verified samples include 00:A0:C8, 00:19:92, 00:24:45, and 54:22:E0. These OUIs appear on broadband access equipment (DSLAMs, OLTs/ONTs, fiber access), enterprise routers/switches, Wi-Fi, and optical networking (via ADVA). Adtran acquired ADVA Optical Networking in 2022, forming Adtran Holdings, and earlier acquired Bluesocket and others. An Adtran OUI maps to the brand, but in a home or SMB network it is frequently ISP-supplied access equipment (an ONT or gateway), while in carrier and enterprise contexts it is access or optical-transport gear. For triage, an Adtran OUI maps to the brand; in a home/SMB network it's frequently ISP-supplied access equipment (an ONT or gateway), and in carrier/enterprise contexts it's access or optical-transport gear.
- IEEE assignment
- 15 prefixes → "Adtran Inc", registered Huntsville, AL, US [Confirmed] — IEEE MA-L
- Registry / block size
- MA-L; 15 blocks (~251.7M addresses) [Confirmed] — maclookup.app (IEEE-sourced)
- HQ / country
- 901 Explorer Blvd., Huntsville, AL 35806-2807, US [Confirmed] — maclookup.app
- Company status
- active; acquired ADVA Optical Networking (2022, forming Adtran Holdings); earlier acquired Bluesocket and others [Confirmed] — adtran.com
- Device types
- broadband access (DSLAMs, OLTs/ONTs, fiber access), enterprise routers/switches, Wi-Fi, optical networking (via ADVA) [Confirmed] — maclookup.app
- Notable products
- Total Access, NetVanta, SDX/ONT access gear, ADVA FSP optical
- Verified prefix sample
- 00:A0:C8, 00:19:92, 00:24:45, 54:22:E0 [Confirmed] — maclookup.app
- Special note
- OUI = brand, but in a home/SMB network it's frequently ISP-supplied access equipment (an ONT or gateway). Acquired ADVA Optical Networking (2022). The IEEE registry publishes no assignment dates, so none is stated here. [Confirmed]
- Related vendors
- ADVA Optical Networking (acquired 2022), Bluesocket
- Analyst note
- An Adtran OUI maps to the brand; in a home/SMB network it's frequently ISP-supplied access equipment (an ONT or gateway), and in carrier/enterprise contexts it's access or optical-transport gear.