EtherType Lookup

Browse or search a curated table of commonly seen EtherTypes. Look up a value by hex (0x0800 or 0800), decimal (2048), or protocol name (IPv4, IPv6, ARP, etc.). Scope: this table is a hand-verified selection, not the complete set of assignments — EtherType values are allocated by the IEEE Registration Authority, and a value missing from this table may still be a valid registered EtherType. Bare digits are ambiguous: "8100" is a decimal number and also the usual written form of the 802.1Q EtherType 0x8100. Auto reads a 4-digit string with a leading zero (0800) as hex and every other all-digit string as decimal, and always labels which reading it used and what the other reading would be; set the number base to Hex or Decimal to decide explicitly. A numeric query is answered as that number only: if the value is not in the table the result is empty, rather than falling back to rows whose hex text happens to contain the same digits. Text that is not a number in the chosen base is matched against protocol names only, so selecting Decimal and typing 86DD finds nothing rather than quietly listing IPv6. An 0x prefix is an explicit hex marker in the input, so it wins over the selector: 0x0800 is read as hex even with Decimal selected, and the tool says so. When the two-byte field value is ≤ 0x05DC (1500 decimal), it is an IEEE 802.3 LENGTH field indicating the payload length in bytes, not an EtherType. All entries listed here carry an authoritative standard reference.