WISOL MAC Prefixes: Vendor Identified, Device Type Unknown
Summary
- // what this is
- Wisol is registered to MAC prefix
48:5A:3Fand 1 more in the IEEE OUI database. When a device's MAC address begins with48:5A:3F, that block was registered by Wisol — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- WISOL and Wisol are the organization-name spellings in the two assignment records; the supplied evidence does not establish that they represent the same legal entity. Each listed prefix is 24 bits, leaving 24 suffix bits and 16,777,216 possible suffix values. The Group and Local bits are zero in each prefix's first byte and remain fixed for an exact prefix match; changing either bit yields a different prefix. Suffix possibilities do not indicate device or shipment counts. A prefix match indicates a registry assignment, not a particular device, deployment, traffic prevalence, current vendor identity, or security state.
About this vendor.
A MAC address beginning with 48:5A:3F or 70:2C:1F matches an IEEE MA-L assignment to WISOL or Wisol, respectively. The supplied records list both addresses in Osan-si, South Korea; only the 48:5A:3F record explicitly lists Gyeonggi-do. The similar names and shared city and country do not establish whether the records belong to one legal entity or corporate group.
Each prefix is 24 bits long, leaving 24 suffix bits: 16,777,216 possible suffix values per prefix. That is a mathematical address-space count, not a count of devices, shipments, or observed addresses. In each prefix's first byte, the Group bit (01) and Local bit (02) are both zero. Those bit values are fixed for an exact literal prefix match; changing either bit produces a different prefix. RFC 7042 describes the Group and Local bits and the structure of 48-bit MAC identifiers.
A prefix match establishes that the captured address begins with a registered prefix. It does not establish the particular device, deployment, traffic prevalence, current vendor identity, or security state. The supplied evidence contains no first-party company material to establish products, industry, website, or device categories tied to these prefixes.
- Vendor
- WISOL / Wisol appears as the organization name for two MA-L assignments; whether the records identify one legal entity is not established. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
48:5A:3Fand70:2C:1F, both 24-bit MA-L prefixes. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Device type
- Unknown; the records do not map either prefix to a device category. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- KR (South Korea) is stated in both supplied assignment records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- WISOL; a second assignment record spells the organization name Wisol, and entity equivalence is not established [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
48:5A:3F,70:2C:1F[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Total prefix count
- 2 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- South Korea (KR) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Notable products
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Industry
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Organization status
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Website
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Historic prefix
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Related vendors
- 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