Cogent Systems, Inc. MAC Addresses
This page provides information about MAC addresses and OUIs assigned to Cogent Systems, Inc.. The Organizationally Unique Identifier (OUI) is the first 24 bits of a MAC address and is assigned by the IEEE to uniquely identify a vendor or manufacturer.
About Cogent Systems, Inc. MAC Addresses
MAC addresses beginning with 00:0B:77: are manufactured by Cogent Systems, Inc.. When you see a device on your network with this OUI prefix, it indicates that the device was manufactured by Cogent Systems, Inc..
The IEEE assigns OUI prefixes to manufacturers to ensure uniqueness in the global networking ecosystem. Cogent Systems, Inc. has been assigned the OUI prefix 000B77 (among others) for use in their network devices.
Common Cogent Systems, Inc. Devices
Devices manufactured by Cogent Systems, Inc. that you might encounter on networks include:
- Network interface cards (NICs)
- Routers and switches
- Wireless access points
- IoT devices
- Embedded systems
- And other networking equipment
Identifying Cogent Systems, Inc. Devices on Your Network
To identify Cogent Systems, Inc. devices on your network:
- Use network scanning tools to list devices on your network
- Look for MAC addresses starting with any of the OUI prefixes listed in the sidebar
- Use our MAC address lookup tool to confirm the manufacturer
This can be particularly helpful for network inventory, troubleshooting, and security auditing.
MAC Address Format
A complete MAC address consists of 48 bits (6 bytes) and is typically represented in hexadecimal format with each byte separated by a colon or a hyphen. For Cogent Systems, Inc. devices, the MAC address would look like:
00:0B:77:XX:XX:XX
The first three bytes (00:0B:77) identify the manufacturer as Cogent Systems, Inc., while the last three bytes are unique to each device.