MAC Address Vendor Lookup

MAC lookup CLI allows you to retrieve information about a MAC address or OUI directly from your console including the vendor's name, address and other data.
The description of provided info is available in the API documentation.

Installation

$ pip install maclookup-cli

Specify the -user flag if you want the installation to be specific to the current user.
In this case you'll have to make sure your PATH contains ~/Library/Python/<ver>/bin (more info) for macOS and %AppData%\Python\Python<version>\Scripts for Windows.

API Key

Using this tool requires signing up for a macaddress.io account and getting an API key here.
This key can either be specified via the -k, --api-key command option or the MAC_ADDRESS_IO_API_KEY environment variable:

# macOS and Linux
export MAC_ADDRESS_IO_API_KEY="your-api-key"

# Windows (CMD)
set MAC_ADDRESS_IO_API_KEY="your-api-key"

# Windows (PowerShell)
$env:MAC_ADDRESS_IO_API_KEY="your-api-key"

You can add this to your .bash_profile for convenience:

echo 'export MAC_ADDRESS_IO_API_KEY="your-api-key"' >> ~/.bash_profile

Getting Started

$ maclookup --help

Basics

Just feed a MAC address to the command:

$ maclookup B8:C2:53:AC:DC:EF

This would print the complete information available for this address:

OUI: B8C253
Is private: False
Company name: Juniper Networks
Company address: 1133 Innovation Way Sunnyvale CA 94089 US
Country code: US
Left border: B8C2530000000000
Right border: B8C253FFFFFFFFFF
Block size: 1099511627776
Assignment block size: MA-L
Created at: 2018-10-26 00:00:00
Updated at: 2018-10-26 00:00:00
Transmission type: unicast
Administration type: UAA

Multiple MACs

A list of addresses can be used as well:

$ maclookup -d B8C253ACDCEF DC4A3ED930C6

OUI: B8C253
Is private: False
Company name: Juniper Networks
Company address: 1133 Innovation Way Sunnyvale CA 94089 US
...
------------------------
OUI: DC4A3E
Is private: False
Company name: Hewlett Packard
Company address: 11445 Compaq Center Drive Houston 77070 US
...

The -d option separates info blocks with lines of dashes.

Controlling the Output

You can limit the output to vendor names (-V) or MACs with vendors only ( -mV):

$ maclookup -V B8:C2:53:AC:DC:EF
Juniper Networks

$ maclookup -mV B8:C2:53:AC:DC:EF
B8:C2:53:AC:DC:EF - Juniper Networks

Input Files

A text file containing one MAC address per line can also be used:

$ cat macs.txt 
C8:3A:35:5C:A6:80 
C4:0B:CB:19:1D:B0
BC:EE:7B:73:04:42
A4:17:31:79:1E:01

$ cat macs.txt | maclookup -mV
C8:3A:35:5C:A6:80 - Tenda Tech Co, Ltd
C4:0B:CB:19:1D:B0 - Xiaomi Communications Co Ltd
BC:EE:7B:73:04:42 - ASUSTek Computer Inc
A4:17:31:79:1E:01 - Hon Hai Precision Ind. Co, Ltd

You can specify the -l option to limit the number of MAC addresses to be processed. The default value for this option is 100. Use 0 to remove the limit.

$ cat macs.txt | maclookup -mV -l 2

C8:3A:35:5C:A6:80 - Tenda Tech Co, Ltd
C4:0B:CB:19:1D:B0 - Xiaomi Communications Co Ltd

Advanced Example

$ sudo nmap -sn 172.28.128.0/24|awk '/^MAC Address:/{print $3;}'|maclookup -mV

00:25:90:A4:8B:85 - Super Micro Computer, Inc
0C:C4:7A:40:07:09 - Super Micro Computer, Inc
0C:C4:7A:31:EF:8B - Super Micro Computer, Inc
00:25:90:FC:7A:CF - Super Micro Computer, Inc
00:25:90:2D:D4:01 - Super Micro Computer, Inc

Error codes

Use the following to get the command's status code:

$ echo $?

Code	Description	Can be ignored (-i)
0	Success	-
1	Authentication failed	-
2	You don't have an access	-
3	MAC address or OUI is invalid	+
4	You don't have enough credits	-
5	Cannot connect to the server	-
6	Cannot parse server response	-
127	Other	-