PT. Hartono Istana Teknologi: MAC Prefix Identification
Summary
- // what this is
- PT. Hartono Istana Teknologi is registered to MAC prefix
74:81:9Aand 1 more in the IEEE OUI database. When a device's MAC address begins with74:81:9A, that block was registered by PT. Hartono Istana Teknologi — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- A match identifies the registered prefix only, not a particular device, product, operator, operating system, or security state. Each prefix is 24 bits, leaving 24 suffix bits and 16,777,216 possible suffix values; this is not a device or shipment count. In both exact prefixes the first-byte Group and Local bits are zero. Those bits are fixed for an exact prefix match; changing either produces a different prefix. RFC 7042 describes these MAC identifier bit meanings.
About this vendor.
A MAC address beginning with 74:81:9A or 9C:53:85 matches an IEEE MA-L assignment to PT. Hartono Istana Teknologi. The assignment identifies the registered organization for the prefix; it does not establish the device, product, or operator using a particular captured address.
The company’s Polytron site privacy policy says the site is operated by PT Hartono Istana Teknologi and that it collects technical data including MAC addresses, operating system, and browser information. That policy provides company and website context, but does not map either prefix to a Polytron product or device category.
Both prefixes are 24-bit MA-L prefixes, leaving 24 bits (16,777,216 possible suffix values) in a 48-bit address. That is a count of possible suffix values, not a count of devices or shipments. In each listed prefix the first-byte Group and Local bits are zero. They are fixed for an exact prefix match; changing either bit produces a different prefix. RFC 7042 explains these bit meanings for MAC identifiers.
A match therefore supports the registered-prefix identification only, not a particular device, operating system, or security state.
- Matching prefixes
74:81:9Aand9C:53:85[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Device category
- Unknown; no supplied evidence maps a device category to either exact prefix [Unknown] — https://polytron.co.id/privacy-policy/
- Company
- PT. Hartono Istana Teknologi [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
74:81:9A,9C:53:85[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Country
- Indonesia [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown [Unknown] — https://polytron.co.id/privacy-policy/
- Notable products
- Unknown [Unknown] — https://polytron.co.id/privacy-policy/
- Industry
- Unknown [Unknown] — https://polytron.co.id/privacy-policy/
- Organization status
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Historic prefix
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Website
- https://polytron.co.id/privacy-policy/ [Confirmed] — https://polytron.co.id/privacy-policy/
- Related vendors
- Unknown [Unknown] — https://polytron.co.id/privacy-policy/
- IEEE assignment date
- Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv