# MAC Address Lookup

- **Website:** <https://macaddresslookup.app>
- **Primary alias:** `macaddresslookup.app`

## Description

MAC Address Lookup is an online reference service that helps users identify the organization registered to a network device’s MAC address or address prefix. Built from public IEEE Registration Authority data, its database covers 58,487 assignments associated with 34,073 organizations and is re-imported daily. Users can search by entering a full address or prefix, with or without common separators, and see results as they type. The site also provides bulk lookup for up to 2,000 addresses, with CSV export, plus a generator for random MAC addresses and an inspector for converting formats and interpreting address bits. A vendor discovery tool lets users search registry organizations using filters and sorting. Developers can access the same data through a free API offering JSON, XML, CSV, or pipe-delimited output, with no key or sign-up required. The service resolves lookups in the browser using published registry files, so full MAC addresses are not sent to a server. Additional resources include registry statistics, an FAQ, and a current Cisco vendor file for network management systems.

## Industries

- 🖥 Computers Electronics and Technology
- 🗺 Reference Materials
- 🗺 Public Records and Directories _(under Reference Materials)_

## Logos & icons

- logo _(primary)_ — PNG, SVG — [download](https://cdn.brandfetch.io/idlMWtsgkE/w/820/h/820/theme/dark/logo.png?c=1bxid64Mup7aczewSAYMX&t=1791474009900)

## Colors

| Name | Hex | Theme |
| --- | --- | --- |
| Deep Cerulean | #0077a8 | accent |
| Firefly | #07121c | dark |
| Cornflower Lilac | #ffb4ab | light |

## Fonts

- var(--font-sans) — asset _(custom)_
- var(--font-sans) — asset _(custom)_

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_Source: <https://brandfetch.com/macaddresslookup.app>_
_See [/llms.txt](/llms.txt) for a full list of agent-readable pages, and [/auth.md](/auth.md) for how agents authenticate._