TEJAS NETWORKS LTD: MAC prefixes identify a registry assignment
Summary
- // what this is
- Tejas Networks is registered to MAC prefix
1C:60:66and 1 more in the IEEE OUI database. When a device's MAC address begins with1C:60:66, that block was registered by Tejas Networks — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
About this vendor.
A MAC address beginning with 1C:60:66 or 9C:E9:1E matches an IEEE MA-L assignment to TEJAS NETWORKS LTD; the records do not identify a device type. These are the two listed prefixes for this company in the supplied IEEE CSV evidence.
Each prefix is 24 bits, leaving 24 bits for the address suffix: 16,777,216 possible suffix values per prefix. This is a mathematical range, not a count of devices, shipments, or addresses observed in use. A match establishes that the address begins with a listed assignment; it does not establish the specific device or its operator.
For both exact prefixes, the first-octet Group bit (01) and Local bit (02) are zero. RFC 7042 explains these bit roles and that assigned OUIs use a zero Local bit while the Group bit is unspecified. Changing either bit changes the first octet and therefore no longer matches the exact listed prefix. Assignment status alone does not show deployment or traffic prevalence.
- Matching prefixes
1C:60:66and9C:E9:1E[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Device type
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- TEJAS NETWORKS LTD [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
1C:60:66,9C:E9:1E[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Country
- India [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Assignment dates
- Unavailable in these IEEE CSV records [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv