What this means
The IEEE assigned the MA-L block 00801A to BELL ATLANTIC. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 00:80:1A, it is BELL ATLANTIC hardware.
Frequently Asked Questions
Who owns MAC prefix 00801A?
00801A is registered to BELL ATLANTIC in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. BELL ATLANTIC's block covers 16,777,216 addresses.
What devices use 00801A?
Any network device with a MAC address starting 00:80:1A was manufactured by or for BELL ATLANTIC.