xiamenshi c-chip technology co., ltd MAC Prefix Identification
Summary
- // what this is
- xiamenshi c-chip technology is registered to MAC prefix
FC:58:4Aand 1 more in the IEEE OUI database. When a device's MAC address begins withFC:58:4A, that block was registered by xiamenshi c-chip technology — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- Each listed prefix is a 24-bit MA-L match with 24 suffix bits; both have Group bit 0 and Local bit 0 in the first octet. The suffix-space size is not an observed device count.
About this vendor.
A MAC address beginning with FC:58:4A or C4:A9:B8 matches an IEEE MA-L assignment to xiamenshi c-chip technology co., ltd; the supplied evidence does not identify a device category. The assignment identifies a registry record, not the maker of a particular observed device or evidence of its deployment, traffic prevalence, or safety.
Both prefixes are 24 bits long, leaving 24 bits for the suffix. Each therefore permits 16,777,216 possible suffix values; that is an address-space calculation, not a count of devices or shipments. For both listed prefixes, the first octet has Group bit 0 and Local bit 0. RFC 7042 describes these as the bits with masks 01 and 02 in the initial octet. Setting either bit changes the literal prefix, so such an address no longer matches the listed 24-bit prefix.
The IEEE records show the two assignments under the supplied company name, with an unambiguous CN country indication. They provide no assignment dates. A matching prefix supports identification of the assigned block only; it does not establish a specific product, operating system, current vendor identity, or security status.
- Registry assignment
FC:58:4AandC4:A9:B8are assigned to xiamenshi c-chip technology co., ltd. [Confirmed]- Device category
- Unknown from the supplied evidence.
- Address match
- The first 24 bits must match the listed prefix; each leaves 24 suffix bits.
- Country
- China, indicated by
CNin the IEEE records. [Confirmed]
- Company
- xiamenshi c-chip technology co., ltd [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
FC:58:4A,C4:A9:B8[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Country
- China (
CNin the records) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv - Device type
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Assignment dates
- Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Group and Local bit interpretation
- RFC 7042 identifies the Group and Local bits in the initial octet using masks
01and02. [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt