Which company owns MAC address prefix AC:9C:E4?

MAC address prefix AC:9C:E4 is registered to Alcatel-Lucent Shanghai Bell Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with AC:9C:E4 has a network interface built by Alcatel-Lucent Shanghai Bell Co., Ltd.

What is the OUI AC:9C:E4?

AC:9C:E4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Alcatel-Lucent Shanghai Bell Co., Ltd. It covers every address from AC:9C:E4:00:00:00 to AC:9C:E4:FF:FF:FF, or 16,777,216 addresses in total. It is also written AC-9C-E4.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in AC:9C:E4:00:00:00 that is AC:9C:E4 — 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 Alcatel-Lucent Shanghai Bell Co., Ltd located?

Alcatel-Lucent Shanghai Bell Co., Ltd is listed at No. 389, Ningqiao Road, Pudong Jinqiao Shanghai CN 201206 in the IEEE OUI registry entry for AC:9C:E4. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Alcatel-Lucent Shanghai Bell Co., Ltd own?

Alcatel-Lucent Shanghai Bell Co., Ltd holds 12 OUI prefixes in the IEEE registry, of which AC:9C:E4 is one. A device made by Alcatel-Lucent Shanghai Bell Co., Ltd could carry a MAC address from any of them.

Alcatel-Lucent Shanghai Bell Co., Ltd

MAC address prefix AC:9C:E4 is registered to Alcatel-Lucent Shanghai Bell Co., Ltd in the IEEE OUI registry. Any device whose MAC address begins with AC:9C:E4 has a network interface built by Alcatel-Lucent Shanghai Bell Co., Ltd. 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 AC:9C:E4:00:00:00 to AC:9C:E4:FF:FF:FF.

OUI prefix: AC:9C:E4
Hyphen form: AC-9C-E4
MAC range: AC:9C:E4:00:00:00 – AC:9C:E4:FF:FF:FF
Addresses in block: 16,777,216
Organization: Alcatel-Lucent Shanghai Bell Co., Ltd
Address: No. 389, Ningqiao Road, Pudong Jinqiao Shanghai CN 201206
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 Alcatel-Lucent Shanghai Bell Co., Ltd

Alcatel-Lucent Shanghai Bell Co., Ltd holds 12 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 "Alcatel-Lucent Shanghai Bell Co., Ltd"
archived source →
2026-07-17Assigned to "Alcatel-Lucent Shanghai Bell Co., Ltd"

Nearby in the registry

The prefixes assigned immediately before and after AC:9C:E4:

FAQ

Which company owns MAC address prefix AC:9C:E4?: MAC address prefix AC:9C:E4 is registered to Alcatel-Lucent Shanghai Bell Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with AC:9C:E4 has a network interface built by Alcatel-Lucent Shanghai Bell Co., Ltd.
What is the OUI AC:9C:E4?: AC:9C:E4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Alcatel-Lucent Shanghai Bell Co., Ltd. It covers every address from AC:9C:E4:00:00:00 to AC:9C:E4:FF:FF:FF, or 16,777,216 addresses in total. It is also written AC-9C-E4.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in AC:9C:E4:00:00:00 that is AC:9C:E4 — 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 Alcatel-Lucent Shanghai Bell Co., Ltd located?: Alcatel-Lucent Shanghai Bell Co., Ltd is listed at No. 389, Ningqiao Road, Pudong Jinqiao Shanghai CN 201206 in the IEEE OUI registry entry for AC:9C:E4. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Alcatel-Lucent Shanghai Bell Co., Ltd own?: Alcatel-Lucent Shanghai Bell Co., Ltd holds 12 OUI prefixes in the IEEE registry, of which AC:9C:E4 is one. A device made by Alcatel-Lucent Shanghai Bell Co., Ltd could carry a MAC address from any of them.