L-3 Linkabit
MAC address prefix 00:05:D6 is registered to L-3 Linkabit in the IEEE OUI registry. Any device whose MAC address begins with 00:05:D6 has a network interface built by L-3 Linkabit. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address — it covers every MAC from 00:05:D6:00:00:00 to 00:05:D6:FF:FF:FF.
- OUI prefix
- 00:05:D6
- Hyphen form
- 00-05-D6
- MAC range
- 00:05:D6:00:00:00 – 00:05:D6:FF:FF:FF
- Addresses in block
- 16,777,216
- Organization
- L-3 Linkabit
- Address
- 9890 Town Center Drive San Diego CA US 92121
- Source
- IEEE OUI registry
Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.
Other prefixes from L-3 Linkabit
L-3 Linkabit holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:
Assignment history (2)
The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.
- 2016-07-29Assigned to "L-3 Linkabit"archived source →
- 2026-07-17Assigned to "L-3 Linkabit"
Nearby in the registry
The prefixes assigned immediately before and after 00:05:D6:
- Solinet Systems00:05:D0
- Metavector Technologies00:05:D1
- DAP Technologies00:05:D2
- eProduction Solutions, Inc.00:05:D3
- FutureSmart Networks, Inc.00:05:D4
- Speedcom Wireless00:05:D5
- Vista Imaging, Inc.00:05:D7
- Arescom, Inc.00:05:D8
- Techno Valley, Inc.00:05:D9
- Apex Automationstechnik00:05:DA
- PSI Software SE,00:05:DB
- Cisco Systems, Inc00:05:DC
FAQ
- Which company owns MAC address prefix 00:05:D6?
- MAC address prefix 00:05:D6 is registered to L-3 Linkabit in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:05:D6 has a network interface built by L-3 Linkabit.
- What is the OUI 00:05:D6?
- 00:05:D6 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to L-3 Linkabit. It covers every address from 00:05:D6:00:00:00 to 00:05:D6:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-05-D6.
- How do I find the manufacturer of a MAC address?
- Take the first three octets of the address — in 00:05:D6:00:00:00 that is 00:05:D6 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.
- Where is L-3 Linkabit located?
- L-3 Linkabit is listed at 9890 Town Center Drive San Diego CA US 92121 in the IEEE OUI registry entry for 00:05:D6. This is the address the organization registered with the IEEE, which may differ from its current operating address.
- How many MAC prefixes does L-3 Linkabit own?
- L-3 Linkabit holds 2 OUI prefixes in the IEEE registry, of which 00:05:D6 is one. A device made by L-3 Linkabit could carry a MAC address from any of them.