MAC address vendor

Accupix Inc. MAC Prefix 9C:1F:DD — Vendor Identified; Device Unknown

Primary prefix
9C:1F:DD
Block
MA-L

Summary

// what this is
Accupix is registered to MAC prefix 9C:1F:DD in the IEEE OUI database. When a device's MAC address begins with 9C:1F:DD, that block was registered by Accupix — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
This 24-bit prefix leaves 24 suffix bits, or 16,777,216 possible suffix values; this is an address-space count, not a device or shipment count. In the exact prefix, the first-octet Group and Local bits are both zero. A match identifies the assignment boundary, not a particular device or deployment.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: High  ·  2 sources  ·  How this page is checked

A MAC address beginning 9C:1F:DD matches an IEEE MA-L assignment registered to Accupix Inc.; the assignment does not identify a device category or a particular product. The IEEE record includes KR in the organization address, supporting country-level identification as South Korea. [https://standards-oui.ieee.org/oui/oui.csv]

This is a 24-bit prefix, leaving 24 bits for suffix values: 16,777,216 possible values. That arithmetic describes the address space, not the number of devices made, shipped, or observed. Under RFC 7042, the first-octet Group bit is bit 0 and the Local bit is bit 1. For 9C, both are zero, so this exact prefix has those bits fixed; changing either bit produces a different prefix. [https://www.rfc-editor.org/rfc/rfc7042.txt]

A prefix match establishes that the address falls within the recorded assignment boundary. It does not establish which device used the address, whether it was deployed, or its current vendor or security status. The IEEE CSV record does not display an assignment date. [https://standards-oui.ieee.org/oui/oui.csv]

Vendor
Accupix Inc. is the organization named in the IEEE assignment for 9C:1F:DD. [https://standards-oui.ieee.org/oui/oui.csv]
Device type
Unknown; the supplied records do not map a device category to this prefix.
Prefix
9C:1F:DD is an MA-L 24-bit assignment, with 24 suffix bits and 16,777,216 possible suffix values. [https://standards-oui.ieee.org/oui/oui.csv]
Country
South Korea; the retrieved IEEE record includes KR in the organization address. [https://standards-oui.ieee.org/oui/oui.csv]
Address interpretation
For this exact prefix, the first-octet Group and Local bits are both zero; changing either bit yields a different prefix. [https://www.rfc-editor.org/rfc/rfc7042.txt]
Company
Accupix Inc. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Registry
MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Prefix
9C:1F:DD [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Country
South Korea [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Device type
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Assignment date
Unavailable in this IEEE CSV record [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 9C:1F:DDMA-L
[ 03 ] — Related

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