Guangzhou Horizontal Information & Network Integration Co. Ltd
MAC address prefix B8:20:E7 is registered to Guangzhou Horizontal Information & Network Integration Co. Ltd in the IEEE OUI registry. Any device whose MAC address begins with B8:20:E7 has a network interface built by Guangzhou Horizontal Information & Network Integration 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 B8:20:E7:00:00:00 to B8:20:E7:FF:FF:FF.
- OUI prefix
- B8:20:E7
- Hyphen form
- B8-20-E7
- MAC range
- B8:20:E7:00:00:00 – B8:20:E7:FF:FF:FF
- Addresses in block
- 16,777,216
- Organization
- Guangzhou Horizontal Information & Network Integration Co. Ltd
- Address
- Floor 10¬Golden Star Building¬Wushan Hanjing Road¬Tianhe District¬Guangzhou City Guangzhou Guangdong Province CN 510630
- 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 "Guangzhou Horizontal Information & Network Integration Co. Ltd"archived source →
- 2026-07-17Assigned to "Guangzhou Horizontal Information & Network Integration Co. Ltd"
Nearby in the registry
The prefixes assigned immediately before and after B8:20:E7:
- TELLESCOM INDUSTRIA E COMERCIO EM TELECOMUNICACAOB8:1E:61
- HUAWEI TECHNOLOGIES CO.,LTDB8:1E:9E
- Liteon Technology CorporationB8:1E:A4
- Espressif Inc.B8:1F:3F
- Apption Labs LimitedB8:1F:5E
- Panasonic Connect Co., Ltd.B8:20:8E
- Apple, Inc.B8:21:1C
- Apple, Inc.B8:22:0C
- Texas InstrumentsB8:22:27
- Sichuan Tianyi Comheart Telecom Co.,LTDB8:22:4F
- Magneti Marelli Slovakia s.r.o.B8:24:10
- SWEDA INFORMATICA LTDAB8:24:1A
FAQ
- Which company owns MAC address prefix B8:20:E7?
- MAC address prefix B8:20:E7 is registered to Guangzhou Horizontal Information & Network Integration Co. Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B8:20:E7 has a network interface built by Guangzhou Horizontal Information & Network Integration Co. Ltd.
- What is the OUI B8:20:E7?
- B8:20:E7 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Guangzhou Horizontal Information & Network Integration Co. Ltd. It covers every address from B8:20:E7:00:00:00 to B8:20:E7:FF:FF:FF, or 16,777,216 addresses in total. It is also written B8-20-E7.
- How do I find the manufacturer of a MAC address?
- Take the first three octets of the address — in B8:20:E7:00:00:00 that is B8:20:E7 — 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 Guangzhou Horizontal Information & Network Integration Co. Ltd located?
- Guangzhou Horizontal Information & Network Integration Co. Ltd is listed at Floor 10¬Golden Star Building¬Wushan Hanjing Road¬Tianhe District¬Guangzhou City Guangzhou Guangdong Province CN 510630 in the IEEE OUI registry entry for B8:20:E7. This is the address the organization registered with the IEEE, which may differ from its current operating address.