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super small, IP address to 2-letter [country code](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2) lookup library. There are already several libraries available, but none met our requirements for binary size and speed.\n\nThis project in its entirety is <450KB, compared to most alternatives out there that are north of 40MB (but they provide a lot more features).\n\nThe database used in this project is compacted from [IP2Location](https://lite.ip2location.com/database/ip-country). Their DB1.LITE edition is provided under CCA, with the attribution below:\n\n---\n\n**NOTE**\n\nThis site or product includes IP2Location LITE data available from https://lite.ip2location.com.\n\n---\n\n## Usage\n\n```bash\n$ npm install ip3country\n```\n\n```js\n// Setup\nconst ip3country = require(\"ip3country\");\n\nawait ip3country.init();\n\n// Or if you want sync\n// ip3country.initSync();\n\n// Lookup using ip4 str\nip3country.lookupStr(\"123.45.67.8\"); // 'KR'.\n\n// Lookup using numeric ip\nconsole.log(ip3country.lookupNumeric(2066563848));\n```\n\n## Accuracy\n\n`ip3country`'s accuracy is dependent on IP2Location LITE's accuracy. In our experience, for country lookups, it is accurate enough for most applications.\n\nIP2Location publishes accuracy reports here: https://www.ip2location.com/data-accuracy\n\nThere's also this third party report available: https://www.cl.cam.ac.uk/~nz247/publications/JSAC2011-Geolocation.pdf\n\n## Name\n\nAll variants of \"ip2country\" were already taken in npm, so we decided to step it up.\n","gitHead":"1bafc37c6d4a496ca826a48b901422c695d7dddb","scripts":{"test":"node tests/lookupTest.js"},"_npmUser":{"name":"statsig","email":"serviceadmin@statsig.com"},"repository":{"url":"git+https://github.com/statsig-io/ip3country.git","type":"git"},"_npmVersion":"7.7.6","description":"This is a no-dependency, super lite version of IP2Location LITE 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There are already several libraries available, but none met our requirements for binary size and speed.\n\nThis project in its entirety is <300KB, compared to most alternatives out there that are north of 40MB (but might provide more than just countries).\n\n(Other languages: Python: https://github.com/statsig-io/ip3country-py, Go: https://github.com/statsig-io/ip3country-go, Ruby: https://github.com/statsig-io/ip3country-ruby, Kotlin: https://github.com/statsig-io/ip3country-kotlin, C#/.Net: https://github.com/statsig-io/ip3country-dotnet)\n\nThe database used in this project is compacted from [IP2Location](https://lite.ip2location.com/database/ip-country). Their DB1.LITE edition is provided under CCA, with the attribution below:\n\n---\n\n**NOTE**\n\nThis site or product includes IP2Location LITE data available from https://lite.ip2location.com.\n\n---\n\n## Usage\n\n```bash\n$ npm install ip3country\n```\n\n```js\n// Setup\nconst ip3country = require(\"ip3country\");\n\nip3country.init();\n\n// Lookup using ip4 str\nip3country.lookupStr(\"123.45.67.8\"); // 'KR'.\n\n// Lookup using numeric ip\nconsole.log(ip3country.lookupNumeric(2066563848));\n```\n\n## Accuracy\n\n`ip3country`'s accuracy is dependent on IP2Location LITE's accuracy. In our experience, for country lookups, it is accurate enough for most applications.\n\nIP2Location publishes accuracy reports here: https://www.ip2location.com/data-accuracy\n\nThere's also this third party report available: https://www.cl.cam.ac.uk/~nz247/publications/JSAC2011-Geolocation.pdf\n\n## Binary data\n\nTo make this library easy to consume, we're using [btoj](https://github.com/statsig-io/btoj) to transform the necessary binary data into a js module that can be imported like any other module. You won't need to list `ip3country` as an external in your build process.\n\nWe're currently using brotli compression via [NodeJS's `zlib` library](https://nodejs.org/api/zlib.html#zlib_zlib_brotlicompresssync_buffer_options), which won't work in Browser environments. 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There are already several libraries available, but none met our requirements for binary size and speed.\n\nThis project in its entirety is <500KB, compared to most alternatives out there that are north of 40MB (but might provide more than just countries).\n\nThe database used in this project is compacted from [IP2Location](https://lite.ip2location.com/database/ip-country). Their DB1.LITE edition is provided under CCA, with the attribution below:\n\n---\n\n**NOTE**\n\nThis site or product includes IP2Location LITE data available from https://lite.ip2location.com.\n\n---\n\n## Usage\n\n```bash\n$ npm install ip3country\n```\n\n```js\n// Setup\nconst ip3country = require(\"ip3country\");\n\nip3country.init();\n\n// Lookup using ip4 str\nip3country.lookupStr(\"123.45.67.8\"); // 'KR'.\n\n// Lookup using numeric ip\nconsole.log(ip3country.lookupNumeric(2066563848));\n```\n\n## Accuracy\n\n`ip3country`'s accuracy is dependent on IP2Location LITE's accuracy. In our experience, for country lookups, it is accurate enough for most applications.\n\nIP2Location publishes accuracy reports here: https://www.ip2location.com/data-accuracy\n\nThere's also this third party report available: https://www.cl.cam.ac.uk/~nz247/publications/JSAC2011-Geolocation.pdf\n\n## Name\n\nAll variants of \"ip2country\" were already taken in npm, so we decided to step it up.\n\n## Motivation\n\nAt [Statsig](https://www.statsig.com), we needed a library to evaluate location-based conditions on Feature Gates (Feature Flags). We use ip3country to power country-level rollouts or A/B tests for new features.\n","gitHead":"b0a43f7af3e64306e234a8552fe7b3834e2e98a4","scripts":{"test":"node tests/lookupTest.js"},"_npmUser":{"name":"statsig","email":"serviceadmin@statsig.com"},"repository":{"url":"git+https://github.com/statsig-io/ip3country.git","type":"git"},"_npmVersion":"8.19.2","description":"This is a no-dependency, super lite version of IP2Location LITE lookup.","directories":{},"_nodeVersion":"18.11.0","_hasShrinkwrap":false,"readmeFilename":"README.md","_npmOperationalInternal":{"tmp":"tmp/ip3country_3.0.1_1679605202693_0.9008995799551289","host":"s3://npm-registry-packages"}},"5.0.1":{"name":"ip3country","version":"5.0.1","author":"","license":"ISC","_id":"ip3country@5.0.1","maintainers":[{"name":"statsig","email":"serviceadmin@statsig.com"}],"homepage":"https://github.com/statsig-io/ip3country#readme","bugs":{"url":"https://github.com/statsig-io/ip3country/issues"},"dist":{"shasum":"82990bc303f6996701f514d9271a260ead9d88f9","tarball":"https://registry.npmjs.org/ip3country/-/ip3country-5.0.1.tgz","fileCount":6,"integrity":"sha512-w/eprz4no8XPp4rBW74jqg2KrO2A+ftBM7rhFKJYnlcLuG8H6wx9KfbPiSTqN5BPVLl/ZzwGivdal3omqS5+Gw==","signatures":[{"sig":"MEUCIQCR26fVgVo6joBW9usLrT9WSeEfLWu7LCKUYJAL8HlCJQIgbTfwvSBTbNpU2m4NLiKU9zxvDwg/brSc9FGLSablU/M=","keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA"}],"unpackedSize":476076,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v4.10.10\r\nComment: https://openpgpjs.org\r\n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\r\nvlCYx5kD5RogwnHx2AkfW29d4UYeggaCfww=\r\n=capL\r\n-----END PGP SIGNATURE-----\r\n"},"main":"src/ip3country.js","types":"types/ip3country.d.ts","readme":"[](https://badge.fury.io/js/ip3country) [](https://packagephobia.com/result?p=ip3country) [](https://github.com/statsig-io/ip3country/actions/workflows/tests.yml)\n\n# ip3country\n\nThis is a zero-dependency, super small, IP address to 2-letter [country code](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2) lookup library. There are already several libraries available, but none met our requirements for binary size and speed.\n\nThis project in its entirety is <300KB, compared to most alternatives out there that are north of 40MB (but might provide more than just countries).\n\n(Other languages: Python: https://github.com/statsig-io/ip3country-py, Go: https://github.com/statsig-io/ip3country-go, Ruby: https://github.com/statsig-io/ip3country-ruby, Kotlin: https://github.com/statsig-io/ip3country-kotlin, C#/.Net: https://github.com/statsig-io/ip3country-dotnet)\n\nThe database used in this project is compacted from [IP2Location](https://lite.ip2location.com/database/ip-country). Their DB1.LITE edition is provided under CCA, with the attribution below:\n\n---\n\n**NOTE**\n\nThis site or product includes IP2Location LITE data available from https://lite.ip2location.com.\n\n---\n\n## Usage\n\n```bash\n$ npm install ip3country\n```\n\n```js\n// Setup\nconst ip3country = require(\"ip3country\");\n\nip3country.init();\n\n// Lookup using ip4 str\nip3country.lookupStr(\"123.45.67.8\"); // 'KR'.\n\n// Lookup using numeric ip\nconsole.log(ip3country.lookupNumeric(2066563848));\n```\n\n## Accuracy\n\n`ip3country`'s accuracy is dependent on IP2Location LITE's accuracy. In our experience, for country lookups, it is accurate enough for most applications.\n\nIP2Location publishes accuracy reports here: https://www.ip2location.com/data-accuracy\n\nThere's also this third party report available: https://www.cl.cam.ac.uk/~nz247/publications/JSAC2011-Geolocation.pdf\n\n## Binary data\n\nTo make this library easy to consume, we're using [btoj](https://github.com/statsig-io/btoj) to transform the necessary binary data into a js module that can be imported like any other module. You won't need to list `ip3country` as an external in your build process.\n\nWe're currently using brotli compression via [NodeJS's `zlib` library](https://nodejs.org/api/zlib.html#zlib_zlib_brotlicompresssync_buffer_options), which won't work in Browser environments. If you want `ip3country` on a browser, check version `3.0.0` (and feel free to publish `ip3country-browser`).\n\n## Name\n\nAll variants of \"ip2country\" were already taken in npm, so we decided to step it up.\n\n## Motivation\n\nAt [Statsig](https://www.statsig.com), we needed a library to evaluate location-based conditions on Feature Gates (Feature Flags). We use ip3country to power country-level rollouts or A/B tests for new features.\n","gitHead":"2a8a20cf0eba3da06269effcea73ad1fd558cf8f","scripts":{"test":"node tests/lookupTest.js"},"_npmUser":{"name":"statsig","email":"serviceadmin@statsig.com"},"repository":{"url":"git+https://github.com/statsig-io/ip3country.git","type":"git"},"_npmVersion":"8.19.2","description":"This is a no-dependency, super lite version of IP2Location LITE lookup.","directories":{},"_nodeVersion":"18.11.0","_hasShrinkwrap":false,"readmeFilename":"README.md","_npmOperationalInternal":{"tmp":"tmp/ip3country_5.0.1_1679605246011_0.48297041627435844","host":"s3://npm-registry-packages"}}},"time":{"created":"2021-05-04T22:54:38.543Z","modified":"2026-06-04T00:05:10.900Z","1.0.0":"2021-05-04T22:54:38.794Z","1.0.1":"2021-05-04T23:31:08.369Z","1.0.2":"2021-05-05T00:02:22.711Z","2.0.0":"2021-05-06T00:06:32.766Z","2.0.1-beta.0":"2021-05-10T18:26:10.326Z","3.0.0":"2021-05-11T05:55:36.669Z","4.0.0":"2021-07-20T05:01:13.444Z","5.0.0-beta.1":"2022-03-28T20:50:25.298Z","5.0.0":"2022-03-28T20:54:19.755Z","3.0.1":"2023-03-23T21:00:02.991Z","5.0.1":"2023-03-23T21:00:46.222Z"},"bugs":{"url":"https://github.com/statsig-io/ip3country/issues"},"license":"ISC","homepage":"https://github.com/statsig-io/ip3country#readme","repository":{"url":"git+https://github.com/statsig-io/ip3country.git","type":"git"},"description":"This is a no-dependency, super lite version of IP2Location LITE lookup.","maintainers":[{"email":"sdk.dev@amplitude.com","name":"sdk.dev"},{"email":"daniel.graham@amplitude.com","name":"daniel-graham-amplitude"}],"readme":"","readmeFilename":""}