Guangzhou V-Solution Telecommunication Technology Co.,Ltd.
MAC address prefix 48:21:B8 is registered to Guangzhou V-Solution Telecommunication Technology Co.,Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 48:21:B8 has a network interface built by Guangzhou V-Solution Telecommunication Technology 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 48:21:B8:00:00:00 to 48:21:B8:FF:FF:FF.
- OUI prefix
- 48:21:B8
- Hyphen form
- 48-21-B8
- MAC range
- 48:21:B8:00:00:00 – 48:21:B8:FF:FF:FF
- Addresses in block
- 16,777,216
- Organization
- Guangzhou V-Solution Telecommunication Technology Co.,Ltd.
- Address
- 13/F, Building 1, No.13 Bohua 4th Road, Huangpu District Guangzhou Guangdong CN 510663
- 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 Guangzhou V-Solution Telecommunication Technology Co.,Ltd.
Guangzhou V-Solution Telecommunication Technology Co.,Ltd. holds 7 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:
Assignment history (1)
The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.
- 2026-08-21Assigned to "Guangzhou V-Solution Telecommunication Technology Co.,Ltd."
Nearby in the registry
The prefixes assigned immediately before and after 48:21:B8:
- SZ DJI TECHNOLOGY CO.,LTD48:1C:B9
- Cisco SPVTG48:1D:70
- Shenzhen Jie Shi Lian Industrial Co.,LTD48:1F:2D
- China Mobile Group Device Co.,Ltd.48:1F:66
- PEGATRON CORPORATION48:21:0B
- China Mobile IOT Company Limited48:21:6C
- Shenzhen Yipingfang Network Technology Co., Ltd.48:22:18
- TP-Link Systems Inc48:22:54
- Dialog Semiconductor Hellas SA48:23:35
- Poly48:25:67
- Huawei Device Co., Ltd.48:25:F3
- Apple, Inc.48:26:2C
FAQ
- Which company owns MAC address prefix 48:21:B8?
- MAC address prefix 48:21:B8 is registered to Guangzhou V-Solution Telecommunication Technology Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 48:21:B8 has a network interface built by Guangzhou V-Solution Telecommunication Technology Co.,Ltd..
- What is the OUI 48:21:B8?
- 48:21:B8 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Guangzhou V-Solution Telecommunication Technology Co.,Ltd.. It covers every address from 48:21:B8:00:00:00 to 48:21:B8:FF:FF:FF, or 16,777,216 addresses in total. It is also written 48-21-B8.
- How do I find the manufacturer of a MAC address?
- Take the first three octets of the address — in 48:21:B8:00:00:00 that is 48:21:B8 — 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 V-Solution Telecommunication Technology Co.,Ltd. located?
- Guangzhou V-Solution Telecommunication Technology Co.,Ltd. is listed at 13/F, Building 1, No.13 Bohua 4th Road, Huangpu District Guangzhou Guangdong CN 510663 in the IEEE OUI registry entry for 48:21:B8. This is the address the organization registered with the IEEE, which may differ from its current operating address.
- How many MAC prefixes does Guangzhou V-Solution Telecommunication Technology Co.,Ltd. own?
- Guangzhou V-Solution Telecommunication Technology Co.,Ltd. holds 7 OUI prefixes in the IEEE registry, of which 48:21:B8 is one. A device made by Guangzhou V-Solution Telecommunication Technology Co.,Ltd. could carry a MAC address from any of them.