ADVAN — MAC prefix identifies registry assignee only

A MAC address beginning 5C:15:15 matches an IEEE MA-L assignment to ADVAN; the supplied evidence does not identify a device category or product using this prefix.

The assignment covers the first 24 bits of a 48-bit MAC address, leaving 24 suffix bits, or 16,777,216 possible suffix values. That is a count of possible values, not a count of devices, shipments, or observed addresses. A matching address establishes the registry assignment, not a device’s maker, current operator, or security status.

For 5C:15:15, the first octet is 5C (binary 01011100). Its Group bit (01) and Local bit (02) are both zero. This exact prefix therefore has fixed individual and globally administered bit values. Setting either bit changes the prefix and no longer produces an exact match to this assignment. RFC 7042 describes the significance of these MAC address bits and the structure of 48-bit identifiers.

Vendor

ADVAN, the organization named in the MA-L record [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Device identification

No device category is established for this prefix [Unknown] — https://standards-oui.ieee.org/oui/oui.csv

Country

Indonesia, indicated by the record’s Jakarta address and ID country code [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Address match

First 24 bits match; 24 suffix bits remain [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt

Company

ADVAN [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Registry

MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Prefix

5C:15:15 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Total assigned prefixes

1 [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://standards-oui.ieee.org/oui/oui.csv

Assignment dates

Assignment dates are unavailable in these IEEE CSV records. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv