AkousaMAC Address Formatter
Format MAC addresses in different notations (colon, dash, dot).
About MAC Address Formatter
The MAC Address Formatter validates and converts 48-bit MAC addresses (EUI-48) between all standard notation formats: IEEE colon-separated (AA:BB:CC:DD:EE:FF), Windows hyphen-separated (AA-BB-CC-DD-EE-FF), Cisco dot-separated grouping (AABB.CCDD.EEFF), and raw hexadecimal (AABBCCDDEEFF). It also normalizes case, identifies the 3-byte OUI vendor prefix from the IEEE public registry, and classifies the address as unicast or multicast and globally or locally administered using the two flag bits in the first octet.
How to Use
Enter a MAC address in any common format — colon, dash, dot, or raw hex — the tool auto-detects and normalizes the input. All four standard output formats appear simultaneously so you can copy whichever your target tool expects. The OUI lookup section shows the registered organization name for the first three bytes if the OUI is in the public IEEE database. The address classification shows unicast/multicast and globally/locally administered flags.
Common Use Cases
- Network administrators converting MAC addresses between colon, dash, and Cisco dot formats when moving between different vendor tools — Cisco IOS uses dot notation while Linux, Windows, and most UNIX tools use colon or dash
- Wireless network engineers normalizing MAC address formats in Wi-Fi access control lists, RADIUS server MAC authentication bypass policies, and DHCP static IP assignment configurations
- SOC analysts identifying device manufacturers by looking up the OUI prefix of MAC addresses extracted from ARP tables, DHCP logs, or network flow data during network reconnaissance or incident investigation
- Network inventory and CMDB administrators normalizing MAC address formats from disparate discovery tool outputs into a consistent format for database storage and comparison across asset management systems
- Penetration testers and red teamers verifying whether a MAC address uses the locally-administered bit to identify MAC address spoofing or virtual machine-generated addresses during network enumeration