The Company dataset identifies the organization that uses each IP range: the company name, its website domain, the AS number announcing the range and a classification of the network.
Unlike WHOIS-based sources that only reveal the registrant, it reflects the actual user of the address space, making it the dataset of choice for account-based marketing, B2B analytics and traffic attribution.
The data
Inside the file
One record per row, a commented header line first. This is what ipregistry-company.csv looks like:
# ip_start,ip_end,asn,name,domain,type12.6.161.40,12.6.161.47,7018,GUBRUDS ELECTRICAL CONTRACTING,,ISP2a01:4f9:3081:358d:0:0:0:0,2a01:4f9:3081:358d:ffff:ffff:ffff:ffff,24940,Hetzner Online GmbH,hetzner.com,HOSTING213.86.180.240,213.86.180.247,8220,Colt Technology Services Group Limited,colt.net,ISP81.195.75.96,81.195.75.111,8359,Ooo Metallspecsbyt,,ISP18.159.210.18,18.159.210.55,16509,A100 Row GmbH,amazon.com,HOSTINGThe rows above come from the free sample. Every build ships with MD5, SHA-1, SHA-256 and SHA-512 checksums so you can verify downloads.
| Column | Description |
|---|---|
ip_start | First IP address of the range, IPv4 or IPv6. |
ip_end | Last IP address of the range, inclusive. |
asn | Autonomous System Number announcing the range. |
name | Name of the company or organization using the range. |
domain | Website domain of the company. |
type | Network classification: business, education, government, hosting, or isp. |
The MMDB variant carries the same data in a memory-mapped binary tree, compatible with the standard MMDB reader libraries available for every major programming language.
Downloads
Available formats
| Format | Description | Size |
|---|---|---|
| CSV | Plain text, one range per line. Import into any database or data warehouse. | |
| CSV (zipped) | Same file compressed for faster downloads and cheaper storage. | |
| MMDB | Binary format for instant lookups with standard MMDB readers. |
Use cases
What you can build
- Identify companies visiting your website for account-based marketing
- Attribute API and application traffic to organizations
- Separate residential, hosting and corporate traffic in analytics
- Prioritize B2B leads by resolving visitor IPs to firmographics
Related use case: Web personalization
Datasets are available with an Ipregistry subscription and download from your dashboard, or over a stable URL for automated syncs. Prefer live data? The same intelligence is served by the Ipregistry API.