mmdblookup(1) General Commands Manual mmdblookup(1)
NAME
mmdblookup - a utility to look up an IP address in a MaxMind DB file
SYNOPSIS
mmdblookup --file [FILE PATH] --ip [IP ADDRESS] [DATA PATH]
DESCRIPTION
mmdblookup looks up an IP address in the specified MaxMind DB file. The
record for the IP address is displayed with {} to denote maps and [] to
denote arrays. The values are followed by type annotations. This output
is not JSON and is not intended to be used as such. If you need JSON,
please see mmdbinspect <https://github.com/maxmind/mmdbinspect>.
If an IP's data entry resolves to a map or array, you can provide a
lookup path to only show part of that data.
For example, given a JSON structure like this:
{
"names": {
"en": "Germany",
"de": "Deutschland"
},
"cities": [ "Berlin", "Frankfurt" ]
}
You could look up just the English name by calling mmdblookup with a
lookup path of:
mmdblookup --file ... --ip ... names en
Or you could look up the second city in the list with:
mmdblookup --file ... --ip ... cities 1
Array numbering begins with zero (0).
If you do not provide a path to lookup, all of the information for a
given IP will be shown.
OPTIONS
This application accepts the following options:
-f, --file
The path to the MMDB file. Required.
-i, --ip
The IP address to look up. Required.
-v, --verbose
Turns on verbose output. Specifically, this causes this application
to output the database metadata.
--version
Print the program's version number and exit.
-h, -?, --help
Show usage information.
BUG REPORTS AND PULL REQUESTS
Please report all issues to our GitHub issue tracker
<https://github.com/maxmind/libmaxminddb/issues>. We welcome bug
reports and pull requests. Please note that pull requests are greatly
preferred over patches.
AUTHORS
This utility was written by Boris Zentner (<bzentner@maxmind.com>) and
Dave Rolsky (<drolsky@maxmind.com>).
COPYRIGHT AND LICENSE
Copyright 2013-2026 MaxMind, Inc.
Licensed under the Apache License, Version 2.0 (the "License"); you may
not use this file except in compliance with the License. You may obtain
a copy of the License at
https://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied. See the License for the specific language governing
permissions and limitations under the License.
SEE ALSO
libmaxminddb(3)
mmdblookup(1)
libmaxminddb 1.13.3 - Generated Sat Apr 4 18:05:12 CDT 2026