Shenzhen Qihoo Intelligent Technology Co.,Ltd: MAC Prefix Identification
Summary
- // what this is
- Shenzhen Qihoo Intelligent Technology is registered to MAC prefix
64:E1:72and 1 more in the IEEE OUI database. When a device's MAC address begins with64:E1:72, that block was registered by Shenzhen Qihoo Intelligent Technology — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- Each exact 24-bit prefix match fixes the first-octet Group bit and Local bit at 0. The remaining 24 bits provide 16,777,216 possible suffix values per prefix; this is not an observed device or shipment count. Prefix match identifies the MA-L assignment, not a particular device, operating system, current legal identity, or security state.
About this vendor.
A MAC address beginning with 64:E1:72 or DC:84:E9 matches an IEEE MA-L assignment registered to Shenzhen Qihoo Intelligent Technology Co.,Ltd. The records identify the registrant, but do not establish a device category or show that a particular product uses either prefix.
Both prefixes are 24 bits long, leaving 24 bits for possible suffix values. For each, the first octet has Group bit 0 and Local bit 0. These are fixed in an exact prefix match; changing either bit changes the prefix being matched. Each prefix allows 16,777,216 suffix values, a mathematical address space count, not a count of devices or shipments.
RFC 7042 describes the 48-bit MAC structure and the significance of the Group and Local bits. A matching prefix supports an identification of the registry assignment only. It does not establish deployment, traffic prevalence, current legal identity, a device's operating system, or security status.
- Matching prefixes
64:E1:72andDC:84:E9, both MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Device category
- Unknown; no exact-prefix device mapping is supplied [Unknown]
- Country
- China, indicated by the
CNcountry code in both registry records [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- Shenzhen Qihoo Intelligent 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
- Device category
- Unknown [Unknown]
- Product catalog
- Unknown [Unknown]
- Industry
- Unknown [Unknown]
- Website
- Unknown [Unknown]