Shenzhen Crave Communication Co., LTD MAC Prefixes
Summary
- // what this is
- Shenzhen Crave Communication is registered to MAC prefix
F4:BC:97and 2 more in the IEEE OUI database. When a device's MAC address begins withF4:BC:97, that block was registered by Shenzhen Crave Communication — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- A match indicates an IEEE registry assignment only. Prefixes are 24, 24, and 28 bits long; their remaining suffix spaces contain 16,777,216, 16,777,216, and 1,048,576 possible values, respectively, not observed device or shipment counts. The first-byte Group and Local bits are both zero for each literal prefix; changing either bit yields a different prefix.
About this vendor.
A MAC address beginning with one of the listed prefixes matches an IEEE registry assignment to Shenzhen Crave Communication Co., LTD; it does not identify a particular device or product. The records list two MA-L assignments and one MA-M assignment under a similar company name. They do not establish whether those registrants belong to the same corporate group.
The prefixes are F4:BC:97 and 9C:DF:B1 (24 bits), plus BC:66:41:C/28 (28 bits). Their matching boundaries leave 24, 24, and 20 suffix bits respectively. Those suffix widths permit 16,777,216, 16,777,216, and 1,048,576 possible values; these are address-space counts, not device or shipment counts.
For each prefix, the first-byte Group and Local bits are both zero. RFC 7042 explains that these bits distinguish group and local address properties. A captured address matching a prefix supports identification of that registry assignment only; it does not establish deployment, traffic prevalence, current vendor identity, or security state. Assignment dates are unavailable in these IEEE CSV records.
- Device category
- Unknown
- Product mapping
- Unknown
- Company
- Shenzhen Crave Communication Co., LTD [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv; MA-M [Confirmed] — https://standards-oui.ieee.org/oui28/mam.csv
- Prefixes
F4:BC:97and9C:DF:B1[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv;BC:66:41:C/28[Confirmed] — https://standards-oui.ieee.org/oui28/mam.csv- Country
- China [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Assignment dates
- Assignment dates are unavailable in these IEEE CSV records. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv