ACIST Medical Systems, Inc. — MAC prefix assignment; device identity unknown
Summary
- // what this is
- ACIST Medical Systems is registered to MAC prefix
00:17:B1in the IEEE OUI database. When a device's MAC address begins with00:17:B1, that block was registered by ACIST Medical Systems — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
00:17:B1is 24 bits; the Group and Local bits in its first byte are both zero. The remaining 24 bits allow 16,777,216 possible suffix values, not an observed device or shipment count.
About this vendor.
A MAC address beginning with 00:17:B1 matches an IEEE MA-L assignment to ACIST Medical Systems, Inc.; the assignment alone does not identify a specific device or device category. The supplied IEEE record lists one full prefix, 00:17:B1, and provides no assignment date.
This is a 24-bit prefix, leaving 24 bits for the remaining address: 16,777,216 possible suffix values. That is a mathematical address-space count, not a count of devices, shipments, or addresses actually in use. For this exact prefix, the first-byte Group bit and Local bit are both zero. Changing either bit changes the prefix and therefore does not match this literal assignment.
RFC 7042 describes MAC identifiers as an initial assigned prefix followed by additional bits, and explains the Group and Local bits. A captured match supports the registry-assignment association only; it does not establish deployment, traffic prevalence, current vendor identity, or safety.
- Matching prefix
00:17:B1(MA-L, 24 bits) [Confirmed] — 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
- Address interpretation
- Group bit 0; Local bit 0; 24 suffix bits permit 16,777,216 possible values [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt
- Company
- ACIST Medical Systems, Inc. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
00:17:B1[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Total prefix count
- 1 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- United States [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown [Unknown]
- Notable products
- Unknown [Unknown]
- Industry
- Unknown [Unknown]
- Organization status
- Unknown [Unknown]
- Historic prefix
- Unknown [Unknown]
- Website
- Unknown [Unknown]
- Related vendors
- Unknown [Unknown]
- Assignment date
- Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Technical interpretation
- RFC 7042 discusses 48-bit MAC identifiers, assigned prefixes, and Group and Local bits. [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt