Which company owns MAC address prefix 04:C9:D9?

MAC address prefix 04:C9:D9 is registered to Dish Technologies Corp in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:C9:D9 has a network interface built by Dish Technologies Corp.

What is the OUI 04:C9:D9?

04:C9:D9 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Dish Technologies Corp. It covers every address from 04:C9:D9:00:00:00 to 04:C9:D9:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-C9-D9.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 04:C9:D9:00:00:00 that is 04:C9:D9 — 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 Dish Technologies Corp located?

Dish Technologies Corp is listed at 94 Inverness Terrace E Englewood CO US 80112 in the IEEE OUI registry entry for 04:C9:D9. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Dish Technologies Corp own?

Dish Technologies Corp holds 7 OUI prefixes in the IEEE registry, of which 04:C9:D9 is one. A device made by Dish Technologies Corp could carry a MAC address from any of them.

Dish Technologies Corp

MAC address prefix 04:C9:D9 is registered to Dish Technologies Corp in the IEEE OUI registry. Any device whose MAC address begins with 04:C9:D9 has a network interface built by Dish Technologies Corp. 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 04:C9:D9:00:00:00 to 04:C9:D9:FF:FF:FF.

OUI prefix: 04:C9:D9
Hyphen form: 04-C9-D9
MAC range: 04:C9:D9:00:00:00 – 04:C9:D9:FF:FF:FF
Addresses in block: 16,777,216
Organization: Dish Technologies Corp
Address: 94 Inverness Terrace E Englewood CO US 80112
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 Dish Technologies Corp

Dish Technologies Corp holds 7 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

Assignment history (4)

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 "EchoStar Technologies Corp"
archived source →
2017-09-08Renamed from "EchoStar Technologies Corp" to "Echostar Technologies Corp"
archived source →
2018-12-21Renamed from "Echostar Technologies Corp" to "Dish Technologies Corp"
archived source →
2026-07-17Assigned to "Dish Technologies Corp"

Nearby in the registry

The prefixes assigned immediately before and after 04:C9:D9:

FAQ

Which company owns MAC address prefix 04:C9:D9?: MAC address prefix 04:C9:D9 is registered to Dish Technologies Corp in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:C9:D9 has a network interface built by Dish Technologies Corp.
What is the OUI 04:C9:D9?: 04:C9:D9 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Dish Technologies Corp. It covers every address from 04:C9:D9:00:00:00 to 04:C9:D9:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-C9-D9.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 04:C9:D9:00:00:00 that is 04:C9:D9 — 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 Dish Technologies Corp located?: Dish Technologies Corp is listed at 94 Inverness Terrace E Englewood CO US 80112 in the IEEE OUI registry entry for 04:C9:D9. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Dish Technologies Corp own?: Dish Technologies Corp holds 7 OUI prefixes in the IEEE registry, of which 04:C9:D9 is one. A device made by Dish Technologies Corp could carry a MAC address from any of them.