mmdbinspect - look up records for one or more IPs/networks in one or more .mmdb databases
mmdbinspect [-include-aliased-networks] [-include-build-time] [-include-networks-without-data] [-jsonl] -db path/to/db [IP|network] [IP|network]...
-db value Path to an mmdb file. You may pass this arg more than once.
This may also be a glob pattern matching one or more MMDB files.
-include-aliased-networks
Include aliased networks (e.g. 6to4, Teredo). This option may
cause IPv4 networks to be listed more than once via aliases.
-include-build-time Include the build time of the database in the output.
-include-networks-without-data
Include networks that have no data in the database.
The "record" will be null for these.
-jsonl Output as JSONL instead of YAML.
[IP|network] An IP address, or network in CIDR notation. Can be
specified multiple times.Any IPs specified will be treated as their single-host network counterparts (e.g. 1.2.3.4 => 1.2.3.4/32).
mmdbinspect will look up each IP/network in each database specified. For each IP/network looked up in a database, the program will select all records for networks which are contained within the looked up IP/network. If no records for contained networks are found in the datafile, the program will select the record that is contained by the looked up IP/network. If no such records are found, none are selected.
The program outputs the selected records in YAML format by default (use -jsonl for JSONL format). Each output item corresponds to a single IP/network being looked up in a single DB. Each record contains the following keys: database_path, requested_lookup, network, and record. This format allows for efficient streaming of large lookups and makes the key naming more consistent.
This software is in beta. No guarantees are made, including relating to interface stability. Comments or suggestions for improvements are welcome on our GitHub issue tracker.
Release binaries have been made available for several popular platforms. Simply download the binary for your platform and run it.
Download and extract the appropriate tarball for your system. You will end up with a directory named something like mmdbinspect_0.0.0_linux_amd64 depending on the version and architecture.
Copy mmdbinspect to where you want it to live. To install it into /usr/local/bin/mmdbinspect, run the equivalent of sudo cp mmdbinspect_0.0.0_linux_amd64/mmdbinspect /usr/local/bin.
(N.B. You can also use the tarball.)
Download the appropriate .deb for your system.
Run dpkg -i path/to/mmdbinspect_0.0.0_linux_amd64.deb (replacing the version number and architecture as necessary). You will need to be root. For Ubuntu you can prefix the command with sudo. This will install mmdbinspect to /usr/bin/mmdbinspect.
(N.B. You can also use the tarball.)
Run rpm -i path/to/mmdbinspect_0.0.0_linux_amd64.rpm (replacing the version number and architecture as necessary). You will need to be root. This will install mmdbinspect to /usr/bin/mmdbinspect.
This is the same as installing on Linux via the tarball, except choose a tarball with "darwin" in the name.
Download and extract the appropriate zip for your system. You will end up with a directory named something like mmdbinspect_0.0.0_windows_amd64 depending on the version and architecture.
Copy mmdbinspect.exe to where you want it to live.
We aim always to support the current and penultimate major releases of the Go compiler. You can get it at the Go website.
The easiest way is via go install:
$ go install github.com/maxmind/mmdbinspect/v2/cmd/mmdbinspect@latestThis installs mmdbinspect to $GOPATH/bin/mmdbinspect.
A simple lookup (one IP/network, one DB)
$ mmdbinspect -db GeoIP2-Country.mmdb 152.216.7.110
database_path: GeoIP2-Country.mmdb
requested_lookup: 152.216.7.110
network: 152.208.0.0/12
record:
continent:
code: NA
geoname_id: 6255149
names:
de: Nordamerika
en: North America
es: Norteamérica
fr: Amérique du Nord
ja: 北アメリカ
pt-BR: América do Norte
ru: Северная Америка
zh-CN: 北美洲
country:
geoname_id: 6252001
iso_code: US
names:
de: USA
en: United States
es: Estados Unidos
fr: États Unis
ja: アメリカ
pt-BR: EUA
ru: США
zh-CN: 美国
registered_country:
geoname_id: 6252001
iso_code: US
names:
de: USA
en: United States
es: Estados Unidos
fr: États Unis
ja: アメリカ
pt-BR: EUA
ru: США
zh-CN: 美国Look up one IP/network in multiple databases
$ mmdbinspect -db GeoIP2-Country.mmdb -db GeoIP2-City.mmdb 152.216.7.110
database_path: GeoIP2-Country.mmdb
requested_lookup: 152.216.7.110
network: 152.208.0.0/12
record:
continent:
code: NA
geoname_id: 6255149
names:
de: Nordamerika
en: North America
es: Norteamérica
fr: Amérique du Nord
ja: 北アメリカ
pt-BR: América do Norte
ru: Северная Америка
zh-CN: 北美洲
country:
geoname_id: 6252001
iso_code: US
names:
de: USA
en: United States
es: Estados Unidos
fr: États Unis
ja: アメリカ
pt-BR: EUA
ru: США
zh-CN: 美国
registered_country:
geoname_id: 6252001
iso_code: US
names:
de: USA
en: United States
es: Estados Unidos
fr: États Unis
ja: アメリカ
pt-BR: EUA
ru: США
zh-CN: 美国
---
database_path: GeoIP2-City.mmdb
requested_lookup: 152.216.7.110
network: 152.216.4.0/22
record:
continent:
code: NA
geoname_id: 6255149
names:
de: Nordamerika
en: North America
es: Norteamérica
fr: Amérique du Nord
ja: 北アメリカ
pt-BR: América do Norte
ru: Северная Америка
zh-CN: 北美洲
country:
geoname_id: 6252001
iso_code: US
names:
de: USA
en: United States
es: Estados Unidos
fr: États Unis
ja: アメリカ
pt-BR: EUA
ru: США
zh-CN: 美国
registered_country:
geoname_id: 6252001
iso_code: US
names:
de: USA
en: United States
es: Estados Unidos
fr: États Unis
ja: アメリカ
pt-BR: EUA
ru: США
zh-CN: 美国Look up multiple IPs/networks in a single database
$ mmdbinspect -db GeoIP2-Connection-Type.mmdb 152.216.7.110/20 2001:0:98d8::/64
database_path: GeoIP2-Connection-Type.mmdb
requested_lookup: 152.216.7.110/20
network: 152.216.0.0/19
record:
connection_type: Corporate
---
database_path: GeoIP2-Connection-Type.mmdb
requested_lookup: 2001:0:98d8::/64
network: 2001:0:98d8::/51
record:
connection_type: CorporateLook up multiple IPs/networks in multiple databases
$ mmdbinspect -db GeoLite2-ASN.mmdb -db GeoIP2-Connection-Type.mmdb 152.216.7.110/20 2001:0:98d8::/64
database_path: GeoIP/GeoLite2-ASN.mmdb
requested_lookup: 152.216.7.110/20
network: 152.216.0.0/19
record:
autonomous_system_number: 30313
autonomous_system_organization: IRS
---
database_path: GeoIP/GeoLite2-ASN.mmdb
requested_lookup: 2001:0:98d8::/64
network: 2001:0:98d8::/51
record:
autonomous_system_number: 30313
autonomous_system_organization: IRS
---
database_path: GeoIP2-Connection-Type.mmdb
requested_lookup: 152.216.7.110/20
network: 152.216.0.0/19
record:
connection_type: Cable/DSL
---
database_path: GeoIP2-Connection-Type.mmdb
requested_lookup: 2001:0:98d8::/64
network: 2001:0:98d8::/51
record:
connection_type: Cable/DSLUsing glob patterns to match multiple database files
$ mmdbinspect -db "GeoIP2-*.mmdb" 152.216.7.110
database_path: GeoIP2-Country.mmdb
requested_lookup: 152.216.7.110
network: 152.208.0.0/12
record:
continent:
code: NA
geoname_id: 6255149
names:
de: Nordamerika
en: North America
# ... more names
country:
geoname_id: 6252001
iso_code: US
# ... more country data
---
database_path: GeoIP2-City.mmdb
requested_lookup: 152.216.7.110
network: 152.216.4.0/22
record:
# ... city dataLook up a file of IPs/networks using the xargs utility
$ cat list.txt
152.216.7.32/27
2610:30::/64
$ cat list.txt | xargs mmdbinspect -db GeoIP2-ISP.mmdb
database_path: GeoIP2-ISP.mmdb
requested_lookup: 152.216.7.32/27
network: 152.216.0.0/19
record:
autonomous_system_number: 30313
autonomous_system_organization: IRS
isp: Internal Revenue Service
organization: Internal Revenue Service
---
database_path: GeoIP/GeoIP2-ISP.mmdb
requested_lookup: 2610:30::/64
network: 2610:30::/32
record:
autonomous_system_number: 30313
autonomous_system_organization: IRS
isp: Internal Revenue Service
organization: Internal Revenue ServiceProcessing the output with the -jsonl flag and the jq utility
Print out the isp field from each result found:
$ mmdbinspect -jsonl -db GeoIP2-ISP.mmdb 152.216.7.32/27 | jq -r '.record.isp'
Internal Revenue ServicePrint out the isp field from each result found in a specific format using string addition:
$ mmdbinspect -jsonl -db GeoIP2-ISP.mmdb 152.216.7.32/27 | jq -r '.record | "isp=" + .isp'
isp=Internal Revenue ServicePrint out the city and country names from each record using string addition:
$ mmdbinspect -jsonl -db GeoIP2-City.mmdb 2610:30::/64 | jq -r '.record | .city.names.en + ", " + .country.names.en'
Martinsburg, United StatesPrint out the city and country names from each record using array construction and join:
$ mmdbinspect -jsonl -db GeoIP2-City.mmdb 2610:30::/64 | jq -r '.record | [.city.names.en, .country.names.en] | join(", ")'
Martinsburg, United StatesGet the AS number for an IP:
$ mmdbinspect -jsonl -db GeoLite2-ASN.mmdb 152.216.7.49 | jq -r '.record.autonomous_system_number'
30313Create a CSV file with network and country code for all networks with data:
$ echo "network,country" > networks.csv
$ mmdbinspect -jsonl -db GeoIP2-Country.mmdb ::/0 | jq -r '[.network, .record.country.iso_code] | @csv' >> networks.csv
$ cat networks.csv
network,country
"1.1.1.0/24","AU"
...When asking jq to print a path it can't find, it'll print null:
$ mmdbinspect -jsonl -db GeoIP2-City.mmdb 152.216.7.49 | jq -r '.invalid.path'
nullWhen asking jq to concatenate or join a path it can't find, it'll leave it blank:
$ mmdbinspect -jsonl -db GeoIP2-City.mmdb 152.216.7.49 | jq -r '.record | .city.names.en + ", " + .country.names.en'
, United States
$ mmdbinspect -jsonl -db GeoIP2-City.mmdb 152.216.7.49 | jq -r '.record | [.city.names.en, .country.names.en] | join(", ")'
, United StatesUsing the -include-* flags for additional information
Include build time information:
$ mmdbinspect -db GeoIP2-City.mmdb -include-build-time 152.216.7.110
database_path: GeoIP2-City.mmdb
build_time: 2023-01-15T12:34:56Z
requested_lookup: 152.216.7.110
network: 152.216.4.0/22
record:
# ... city dataInclude networks without data:
$ mmdbinspect -db GeoIP2-City.mmdb -include-networks-without-data 192.0.2.1
database_path: GeoIP2-City.mmdb
requested_lookup: 192.0.2.1
network: 192.0.2.0/24Include aliased networks:
$ mmdbinspect -db GeoIP2-City.mmdb -include-aliased-networks ::/0
# ... All IPs in the database, including all aliased networks.Please report bugs by filing an issue with our GitHub issue tracker at https://github.com/maxmind/mmdbinspect/issues.
This software is Copyright (c) 2019 - 2025 by MaxMind, Inc.
This is free software, licensed under the Apache License, Version 2.0 or the MIT License, at your option.
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