macadress

Hewlett Packard

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:18:71:00:00:00 /24
Vendor address20555 State Highway 249 Houston TX US 77070
Country🇺🇸  United States
RegisteredJun 13, 2006
Block range00:18:71:00:00:00– 00:18:71: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. Jun 13, 2006 – Jul 19, 2008 Global Data Services name changedaddress changed
  2. Jul 19, 2008 – Jun 15, 2011 Hewlett Packard name changed
  3. Jun 15, 2011 – Oct 10, 2015 Hewlett-Packard Company name changedaddress changed
  4. Oct 10, 2015 – present Hewlett Packard

Example addresses in this block

00:18:71:00:00:00 00:18:71:7F:FF:FF 00:18:71:FF:FF:FF

Where this block sits

Previous 00:18:70:00:00:00 /24 E28 Shanghai Limited Next 00:18:72:00:00:00 /24 Expertise Engineering

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

Hewlett Packard holds 150 registered blocks in the IEEE registry, ranking #25 of 33,427 organizations by block count.

Other blocks registered to Hewlett Packard

00:01:E6:00:00:00 /24 MA-L 00:01:E7:00:00:00 /24 MA-L 00:02:A5:00:00:00 /24 MA-L 00:04:EA:00:00:00 /24 MA-L 00:08:02:00:00:00 /24 MA-L 00:08:83:00:00:00 /24 MA-L 00:08:C7:00:00:00 /24 MA-L 00:0A:57:00:00:00 /24 MA-L 00:0B:CD:00:00:00 /24 MA-L 00:0D:9D:00:00:00 /24 MA-L 00:0E:7F:00:00:00 /24 MA-L 00:0E:B3:00:00:00 /24 MA-L