America Online, Inc. MAC Addresses
This page provides information about MAC addresses and OUIs assigned to America Online, 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 America Online, Inc. MAC Addresses
MAC addresses beginning with 00:03:8A: are manufactured by America Online, Inc.. When you see a device on your network with this OUI prefix, it indicates that the device was manufactured by America Online, Inc..
The IEEE assigns OUI prefixes to manufacturers to ensure uniqueness in the global networking ecosystem. America Online, Inc. has been assigned the OUI prefix 00038A (among others) for use in their network devices.
Common America Online, Inc. Devices
Devices manufactured by America Online, 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 America Online, Inc. Devices on Your Network
To identify America Online, 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 America Online, Inc. devices, the MAC address would look like:
00:03:8A:XX:XX:XX
The first three bytes (00:03:8A) identify the manufacturer as America Online, Inc., while the last three bytes are unique to each device.