Who owns MAC prefix 187F88?

187F88 is registered to Ring LLC in the IEEE MA-L registry.

What devices use 187F88?

Any network device with a MAC address starting 18:7F:88 was manufactured by or for Ring LLC.

MA-L · OUI prefix

Ring LLC

Any MAC address starting 18:7F:88 is registered to Ring LLC in US.

OUI prefix	187F88
Vendor	Ring LLC
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	18:7F:88:00:00:00

What this means

The IEEE assigned the MA-L block 187F88 to Ring LLC. 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 18:7F:88, it is Ring LLC hardware.

Other Ring LLC prefixes

Ring LLC holds 13 registered blocks in total.

00B463 242BD6 343EA4 54E019 50E467 5C475E 649A63 90486C 9C7613 AC9FC3 C4DBAD CC3BFB

Look up another MAC