Tributary Systems, Inc. MAC Addresses

Primary OUI: 34:D7:B4:
Total OUIs: 2
Last Updated: July 3, 2026

This page provides information about MAC addresses and OUIs assigned to Tributary 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 Tributary Systems, Inc. MAC Addresses

MAC addresses beginning with 34:D7:B4: are manufactured by Tributary Systems, Inc.. When you see a device on your network with this OUI prefix, it indicates that the device was manufactured by Tributary Systems, Inc..

The IEEE assigns OUI prefixes to manufacturers to ensure uniqueness in the global networking ecosystem. Tributary Systems, Inc. has been assigned the OUI prefix 34D7B4 (among others) for use in their network devices.

Common Tributary Systems, Inc. Devices

Devices manufactured by Tributary 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 Tributary Systems, Inc. Devices on Your Network

To identify Tributary Systems, Inc. devices on your network:

  1. Use network scanning tools to list devices on your network
  2. Look for MAC addresses starting with any of the OUI prefixes listed in the sidebar
  3. 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 Tributary Systems, Inc. devices, the MAC address would look like:

34:D7:B4:XX:XX:XX

The first three bytes (34:D7:B4) identify the manufacturer as Tributary Systems, Inc., while the last three bytes are unique to each device.

Tributary Systems, Inc. OUI Prefixes

Lookup a MAC Address

Need to identify a different device? Use our MAC address lookup tool to find the manufacturer of any network device.