Networkingflags: g

MAC Address

Match 48-bit MAC addresses written with colon or hyphen separators (e.g. 00:1A:2B:3C:4D:5E).

Try it in RegexPro →

Available in

JSSupported

JavaScript / ECMAScript

Browser-native RegExp. Default if you don't pick.

PYSupported

Python (re)

CPython stdlib `re`. Unicode-aware `\w` and `\d` by default.

GOSupported

Go (RE2)

Linear-time matching. No backreferences or lookarounds.

Pattern

regexengine-agnostic
(?:[0-9A-Fa-f]{2}[:\-]){5}[0-9A-Fa-f]{2}   (flags: g)

Raw source: (?:[0-9A-Fa-f]{2}[:\-]){5}[0-9A-Fa-f]{2}

How it works

Five pairs of hex digits each followed by : or -, then a final hex pair. Case-insensitive by character class to handle both upper and lower hex digits.

Examples

Input

00:1A:2B:3C:4D:5E

Matches

  • 00:1A:2B:3C:4D:5E

Input

AA-BB-CC-DD-EE-FF

Matches

  • AA-BB-CC-DD-EE-FF

Input

not a mac

No match

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Common use cases

  • •DHCP lease log parsing
  • •Device inventory scans
  • •Wi-Fi access control configuration
  • •Network security monitoring

Related patterns

IPv6 Address

Networking

Match full (non-compressed) IPv6 addresses written as eight colon-separated hextets.

IP Address with CIDR Notation

Networking

Match IPv4 addresses with CIDR prefix notation such as 10.0.0.0/8 or 192.168.1.0/24.

IPv4 Address

Networking

Match valid IPv4 addresses with each octet constrained to 0–255.

Private IP Address (RFC 1918)

Networking

Match IPv4 addresses in the RFC 1918 private ranges: 10/8, 192.168/16, and 172.16/12.

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