macadress

Meta Platforms, Inc.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixB4:17:A8:00:00:00 /24
Vendor address1 Hacker Way Menlo Park CA US 94025
Country🇺🇸  United States
RegisteredDec 24, 2021
Block rangeB4:17:A8:00:00:00– B4:17:A8:FF:FF:FF
Address capacity16,777,216
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
TransmissionUnicast: addressed to a single device
SourceIEEE Registration Authority

Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.

Curious how a prefix like this turns into a full address? See how MAC addresses are structured →

Ownership timeline

  1. Dec 24, 2021 – Dec 22, 2022 Facebook Technologies, LLC name changed
  2. Dec 22, 2022 – Mar 26, 2025 Meta Platforms Technologies, LLC name changed
  3. Mar 26, 2025 – present Meta Platforms, Inc.

Example addresses in this block

B4:17:A8:00:00:00 B4:17:A8:7F:FF:FF B4:17:A8:FF:FF:FF

Where this block sits

Meta Platforms, Inc. holds 13 registered blocks in the IEEE registry, ranking #242 of 33,427 organizations by block count.

Other blocks registered to Meta Platforms, Inc.

48:05:60:00:00:00 /24 MA-L 50:99:03:00:00:00 /24 MA-L 78:C4:FA:00:00:00 /24 MA-L 80:F3:EF:00:00:00 /24 MA-L 84:57:F7:00:00:00 /24 MA-L 88:25:08:00:00:00 /24 MA-L 94:F9:29:00:00:00 /24 MA-L C0:DD:8A:00:00:00 /24 MA-L CC:A1:74:00:00:00 /24 MA-L D0:B3:C2:00:00:00 /24 MA-L D4:D6:59:00:00:00 /24 MA-L F4:4E:35:00:00:00 /24 MA-L