Shenzhen Hikeen Technology CO.,LTD — MAC prefix identification
Summary
- // what this is
- Shenzhen Hikeen Technology is registered to MAC prefix
7C:82:74and 1 more in the IEEE OUI database. When a device's MAC address begins with7C:82:74, that block was registered by Shenzhen Hikeen Technology — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- Both exact 24-bit prefixes have first-byte Group bit 0 and Local bit 0. Each leaves 24 suffix bits, or 16,777,216 possible suffix values; this is not a device or shipment count. A prefix match indicates registry assignment only.
About this vendor.
A MAC address beginning with 7C:82:74 or 20:5A:8F matches a MA-L assignment registered to Shenzhen Hikeen Technology CO.,LTD. That registry match does not identify a particular device, product, or deployment. The IEEE records give China as the country for both assignments; they provide no assignment dates.
Each exact MA-L prefix is 24 bits, leaving 24 bits for the remaining address: 16,777,216 possible suffix values per prefix. This is an arithmetic count of possible suffixes, not a count of devices or shipments. The Local bit is zero in both prefixes, consistent with globally administered addresses. RFC 7042 says the Group bit is unspecified in OUI assignments; setting it can construct a multicast identifier under the OUI, while the exact three-octet registry match remains the listed prefix.
Changing the Local bit changes the prefix match.
For identification, compare the first three octets of the captured MAC address with either complete prefix. A match supports only that the address falls within the listed registry assignment. It cannot establish who operates the address now, the device category, or its security status. RFC 7042 describes 48-bit MAC identifiers as using an initial OUI or other assigned prefix plus remaining bits.
- Assignment date
- Unavailable in the displayed IEEE CSV records.
- Registered entity
- Shenzhen Hikeen Technology CO.,LTD [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- China [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
7C:82:74and20:5A:8F[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Device category
- Unknown
- Products
- Unknown
- Industry
- Unknown
- Website
- Unknown