Which company owns MAC address prefix 18:88:57?

MAC address prefix 18:88:57 is registered to Beijing Jinhong Xi-Dian Information Technology Corp. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 18:88:57 has a network interface built by Beijing Jinhong Xi-Dian Information Technology Corp..

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 18:88:57:00:00:00 that is 18:88:57 — 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.

Beijing Jinhong Xi-Dian Information Technology Corp.

MAC address prefix 18:88:57 is registered to Beijing Jinhong Xi-Dian Information Technology Corp. in the IEEE OUI registry. Any device whose MAC address begins with 18:88:57 has a network interface built by Beijing Jinhong Xi-Dian Information Technology 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 18:88:57:00:00:00 to 18:88:57:FF:FF:FF.

OUI prefix: 18:88:57
Hyphen form: 18-88-57
MAC range: 18:88:57:00:00:00 – 18:88:57:FF:FF:FF
Addresses in block: 16,777,216
Organization: Beijing Jinhong Xi-Dian Information Technology Corp.
Address: 4th -5th Floor, 1# Building NO.1 Zhonghe Road Beijing CN 100070
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.

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 "Beijing Jinhong Xi-Dian Information Technology Corp."
archived source →
2026-07-17Assigned to "Beijing Jinhong Xi-Dian Information Technology Corp."

Nearby in the registry

The prefixes assigned immediately before and after 18:88:57:

FAQ

Which company owns MAC address prefix 18:88:57?: MAC address prefix 18:88:57 is registered to Beijing Jinhong Xi-Dian Information Technology Corp. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 18:88:57 has a network interface built by Beijing Jinhong Xi-Dian Information Technology Corp..
What is the OUI 18:88:57?: 18:88:57 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Beijing Jinhong Xi-Dian Information Technology Corp.. It covers every address from 18:88:57:00:00:00 to 18:88:57:FF:FF:FF, or 16,777,216 addresses in total. It is also written 18-88-57.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 18:88:57:00:00:00 that is 18:88:57 — 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 Beijing Jinhong Xi-Dian Information Technology Corp. located?: Beijing Jinhong Xi-Dian Information Technology Corp. is listed at 4th -5th Floor, 1# Building NO.1 Zhonghe Road Beijing CN 100070 in the IEEE OUI registry entry for 18:88:57. This is the address the organization registered with the IEEE, which may differ from its current operating address.