Datafeed files | Specifications | IP Netblocks WHOIS Database | WhoisXML API

Datafeed files

The data feed provides a downloadable database of the registered IP Netblocks (IP ranges) with detailed information regarding each range.

The database contains IP whois data from major Internet Addresses Registries on a daily basis

The resulting database is a joint dataset, post-processed to get unified and consistent format and data. The output format is JSON or CSV where every row is a separate JSON object or CSV row. It allows parallel processing in your systems.

About 20% of records have partly redacted contact information, due to GDPR.

The database comes in two forms

  • Full databases — a full database of all the IP Netblocks for a given date in unified and consistent JSON or CSV format. These files are named in format:
    "ip_netblocks.%DATE%.full.contacts[.v6].csv.gz", e.g. "ip_netblocks.2018-12-19.full.contacts.csv.gz" and "ip_netblocks.2018-12-19.full.contacts.v6.csv.gz"
  • Daily incremental databases — changes in full IP Netblocks database compared to the previous date. Includes added, dropped and modified IP ranges since yesterday. These files are named in format:
    "ip_netblocks.%DATE%.daily.contacts[.v6].csv.gz", e.g. "ip_netblocks.2018-12-19.daily.contacts.csv.gz" and "ip_netblocks.2018-12-19.daily.contacts.v6.csv.gz"

File storage time: every file is available for 3 months since its creation date.

A fresh daily incremental database is delivered every day at 02.00 PST.

Downloading via HTTPs

Downloading via FTP

  • Host:
  • Port: 21210
  • Username: 'user'
  • Password: equal to your personal API Key which you can obtain from the My Products page.

Average file sizes

Here are presented approximate files sizes and records numbers. Every field stores values for IPv4 and IPv6 files separated by slash.
gzip unpacked records
Full .jsonl 600MiB / 91MiB 8300MiB / 1300MiB 9.1M / 1.3M
Full .blocks.csv 262MiB / 52MiB 1900MiB / 400MiB 9.1M / 1.3M
Full .contacts.csv 111MiB / 10MiB 600MiB / 30MiB 5.5M / 360K
Daily .jsonl 5.2MiB / 5.6MiB 80MiB / 70MiB 77K / 69K
Daily .blocks.csv 2.5MiB / 3MiB 17MiB / 17MiB 77K / 69K
Daily .contacts.csv 0.8MiB / 0.6MiB 3.5MiB / 1.5MiB 34K / 22K
Have questions?

We are here to listen. For a quick response, please select your request type or check our Contact us page for more information. By submitting a request, you agree to our Terms of Service and Privacy Policy.

Or shoot us an email to