Realme Chongqing Mobile Telecommunications Corp.,Ltd.
MAC address prefix B0:A1:87 is registered to Realme Chongqing Mobile Telecommunications Corp.,Ltd. in the IEEE OUI registry. Any device whose MAC address begins with B0:A1:87 has a network interface built by Realme Chongqing Mobile Telecommunications Corp.,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 B0:A1:87:00:00:00 to B0:A1:87:FF:FF:FF.
- OUI prefix
- B0:A1:87
- Hyphen form
- B0-A1-87
- MAC range
- B0:A1:87:00:00:00 – B0:A1:87:FF:FF:FF
- Addresses in block
- 16,777,216
- Organization
- Realme Chongqing Mobile Telecommunications Corp.,Ltd.
- Address
- No.178 Yulong Avenue, Yufengshan, Yubei District, Chongqing. Chongqing China CN 401120
- 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 Realme Chongqing Mobile Telecommunications Corp.,Ltd.
Realme Chongqing Mobile Telecommunications Corp.,Ltd. holds 58 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.
- 2025-05-13Assigned to "Realme Chongqing Mobile Telecommunications Corp.,Ltd."archived source →
- 2026-07-17Assigned to "Realme Chongqing Mobile Telecommunications Corp.,Ltd."
Nearby in the registry
The prefixes assigned immediately before and after B0:A1:87:
- Shenzhen Taichi Technology LimitedB0:9C:18
- Xiaomi Communications Co LtdB0:9C:63
- Google, Inc.B0:9C:B2
- Butlr Technologies, Inc.B0:9E:1B
- Apple, Inc.B0:9F:BA
- Pivotal Systems CorporationB0:A1:0A
- Shenzhen TINNO Mobile Technology Corp.B0:A2:E7
- QING DAO HAIER TELECOM CO.,LTD.B0:A3:7E
- Huaqin Technology Co. LTDB0:A3:F2
- Tripwire Inc.B0:A4:54
- Intel CorporateB0:A4:60
- HUAWEI TECHNOLOGIES CO.,LTDB0:A4:F0
FAQ
- Which company owns MAC address prefix B0:A1:87?
- MAC address prefix B0:A1:87 is registered to Realme Chongqing Mobile Telecommunications Corp.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B0:A1:87 has a network interface built by Realme Chongqing Mobile Telecommunications Corp.,Ltd..
- What is the OUI B0:A1:87?
- B0:A1:87 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Realme Chongqing Mobile Telecommunications Corp.,Ltd.. It covers every address from B0:A1:87:00:00:00 to B0:A1:87:FF:FF:FF, or 16,777,216 addresses in total. It is also written B0-A1-87.
- How do I find the manufacturer of a MAC address?
- Take the first three octets of the address — in B0:A1:87:00:00:00 that is B0:A1:87 — 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 Realme Chongqing Mobile Telecommunications Corp.,Ltd. located?
- Realme Chongqing Mobile Telecommunications Corp.,Ltd. is listed at No.178 Yulong Avenue, Yufengshan, Yubei District, Chongqing. Chongqing China CN 401120 in the IEEE OUI registry entry for B0:A1:87. This is the address the organization registered with the IEEE, which may differ from its current operating address.
- How many MAC prefixes does Realme Chongqing Mobile Telecommunications Corp.,Ltd. own?
- Realme Chongqing Mobile Telecommunications Corp.,Ltd. holds 58 OUI prefixes in the IEEE registry, of which B0:A1:87 is one. A device made by Realme Chongqing Mobile Telecommunications Corp.,Ltd. could carry a MAC address from any of them.