@ip-location-db/iptoasn-asn-mmdb/README.md

Ip to location database

> [!CAUTION]
> **🚨 CRITICAL NOTICE: Data Bugs & Migration**
> 
> Please be aware that the current data published to `npm` and the `main` branch **contains bugs resulting in incorrect data**.
> 
> To immediately resolve these data accuracy and compliance issues, **updates via `npm` are completely deprecated and will stop.**
> 
> The corrected data and new, compliant generation logic are already available in the **[`main-test`](https://github.com/sapics/ip-location-db/tree/main-test)** branch.
> We will be completely replacing the `main` branch with this structure very soon.
> 
> **Action Required:** We strongly urge all users to switch immediately to avoid using incorrect data.
> Please update your systems to download the latest data directly from our [GitHub Releases](https://github.com/sapics/ip-location-db/releases).


# [ip-location-db](https://github.com/sapics/ip-location-db)/iptoasn-asn-mmdb

## Download

| Database | Type | License | Updated | IPv4 | IPv6 | IPv4+IPV6 | IPv4-num | IPv6-num |
|---|---|---|---|---|---|---|---|---|
| [IPtoASN](https://github.com/sapics/ip-location-db/tree/main/iptoasn-asn/)<br><br>[![npm version](https://img.shields.io/npm/v/@ip-location-db/iptoasn-asn?color=success&style=flat-square&label=CSV)](https://www.npmjs.com/package/@ip-location-db/iptoasn-asn)<br>[![npm version](https://img.shields.io/npm/v/@ip-location-db/iptoasn-asn-mmdb?color=success&style=flat-square&label=MMDB)](https://www.npmjs.com/package/@ip-location-db/iptoasn-asn-mmdb) | ASN | [PDDL](https://opendatacommons.org/licenses/pddl/1.0/) by [IPtoASN](https://iptoasn.com/) | Daily | [CSV](https://cdn.jsdelivr.net/npm/@ip-location-db/iptoasn-asn/iptoasn-asn-ipv4.csv)<br>[MMDB](https://cdn.jsdelivr.net/npm/@ip-location-db/iptoasn-asn-mmdb/iptoasn-asn-ipv4.mmdb) | [CSV](https://cdn.jsdelivr.net/npm/@ip-location-db/iptoasn-asn/iptoasn-asn-ipv6.csv)<br>[MMDB](https://cdn.jsdelivr.net/npm/@ip-location-db/iptoasn-asn-mmdb/iptoasn-asn-ipv6.mmdb) | — | [CSV](https://cdn.jsdelivr.net/npm/@ip-location-db/iptoasn-asn/iptoasn-asn-ipv4-num.csv) | [CSV](https://cdn.jsdelivr.net/npm/@ip-location-db/iptoasn-asn/iptoasn-asn-ipv6-num.csv) |


## MMDB Format

```
autonomous_system_number, autonomous_system_organization
```


### autonomous_system_number

`autonomous_system_number` is a unique number assigned to an Autonomous System (AS) by the [IANA](https://www.iana.org/). [wiki](https://wikipedia.org/wiki/Autonomous_system_(Internet)).


## Referenced Database



### [IPtoASN](https://iptoasn.com/) database [Update: Hourly]

You can download hourly updated database in tsv format from [original site](https://iptoasn.com/).
This is licensed under a [Public Domain Dedication and License v1.0](https://opendatacommons.org/licenses/pddl/1.0/).
There are some differences from above `ASN` database.



## License

These files are subject to the [Public Domain Dedication and license v1.0](https://opendatacommons.org/licenses/pddl/1.0/). You may use these databases without attribution for any purpose.