# IP to Company Lookup API: Identify B2B Visitors — Ravn

Canonical: https://askravn.com/features/ip-to-company

IP to company

# Which company just visited?

`ip_to_company` reads public registry (RDAP) data to name the organisation that owns an IP. It works for company networks and is honest about ISPs.
[Start free: 1,000 lookups](https://askravn.com/#start) [Read the docs](https://askravn.com/docs#ip_to_company)

How it works
## What happens on every call.
The same tool answers over the REST API, the MCP server and the CLI.

- / 01
### Public registry data
We query the regional internet registries for who holds the address block.
- / 02
### Company networks only
Home broadband and mobile carriers return `not_found`, so you never mistake an ISP for a lead.
- / 03
### Chain it
Pass the domain to `scrape_website` or `domain_to_company` for the full profile.
- / 04
### Free when it misses
A miss gives the lookup back.

Call it
## One request. One answer shape.
Branch on `status`. A miss returns `not_found` and costs nothing. In Claude, just ask in plain English and it picks `ip_to_company` for you.

```
curl https://api.askravn.com/v1/tools/ip_to_company \
-H "Authorization: Bearer $RAVN_API_KEY" \
-d '{"ip": "203.0.113.10"}'

{ "status": "ok",
"results": { "ip": "203.0.113.10", "organization": "Acme Inc.",
"range": "203.0.113.0 - 203.0.113.255", "country": "US" } }
```

FAQ
## Questions about ip_to_company.
[All questions →](https://askravn.com/faq)
Does it work for IPv6?Today it handles IPv4.Is this personal data?We only return organisations that hold address blocks, never individuals.What about cloud and ISP addresses?Big ISPs, mobile carriers and cloud hosts return `not_found`, so you only get real company networks.Cost?One lookup in your plan.

## More tools, same key.
Every tool shares one account, one plan and one answer shape. [See pricing →](https://askravn.com/pricing)

- [Lead Verification API: Email, Phone & CompanyVerify a whole lead in one call: email, phone, live company website and whether the person is listed there.](https://askravn.com/features/lead-verification-api)
- [People Search API: Find B2B Contacts by TitleSearch people by title, company, location, seniority and company size, with verified work emails.](https://askravn.com/features/people-search-api)
- [Phone Validation & Carrier Lookup APIValidate phone numbers and check the live carrier and line type: mobile, landline or VoIP.](https://askravn.com/features/phone-validation-api)
- [Reverse Email Lookup API: Email to PersonTurn an email into a business profile: name, title, company, location and LinkedIn.](https://askravn.com/features/reverse-email-lookup)
- [Website Scraper API: Company Data as JSONRead any company website into JSON: emails, phone numbers, socials, team members with titles, address, tech stack and whether it's live..](https://askravn.com/features/website-scraper-api)
- [Company Enrichment API: Domain to Company DataEnrich a domain into a company profile: size, industry, founded year, location, socials and tech stack.](https://askravn.com/features/company-enrichment-api)