# ipwhois.io, free: IP company lookup API

> Fast response and accurate data [...] Our real-time geolocation API is trusted by thousands of developers and enterprises worldwide

ipwhois.io's Free plan for the IP company lookup API costs $0.00 per 1,000 IP addresses. ipwhois.io's docs list 5 of the 10 fields on our checklist: Owner's name, Owner's domain, ASN, Country, Region and city.
In [our IP company lookup API benchmark](https://datacircle.dev/best-ip-company-lookup-api.txt), this plan scores 80.5 out of 100. ipwhois.io ranks 2nd of 15 providers.
Half of the 398 plans we rank by price cost $0.112 per 1,000 IP addresses or less. This plan and 30 others tie for the lowest price per 1,000 IP addresses of the 398 plans. [See the best free IP company lookup API plan.](https://datacircle.dev/best-ip-company-lookup-api.txt)
[FreeIPAPI's €9.90 monthly plan (/api/bulk/json)](https://datacircle.dev/ip-company-lookup-apis/freeipapi/9-90-monthly-unlimited-post-api-bulk-json/llms.txt) covers any number of IP addresses. FreeIPAPI's €9.90 monthly plan costs less up front than IPHunter's €99.99 monthly plan.
[DNSlytics](https://datacircle.dev/ip-company-lookup-apis/dnslytics/free/llms.txt), [ipwhois.io](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/free/llms.txt) and [IPBot](https://datacircle.dev/ip-company-lookup-apis/ipbot/free-anonymous-get-v1-ip-ip/llms.txt) are the best IP company lookup API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/free
- [IP company lookup API: the 15 best providers compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://ipwhois.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `GET https://ipwho.is/{IP address}`, Free Endpoint
- API key: not needed
- Its API docs: https://ipwhois.io/documentation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Sold by: ipwhois.io (https://ipwhois.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 50%
- Owner's name: ✓
- Owner's domain: ✓
- ASN: ✓
- Country: ✓
- Region and city: ✓

## Score

- Overall score: 80.5
- Price score: 100
- Accuracy score: 71
- Cost to get started score: 100
- Bundle score: 0
- Performance score: 100

## Price

- $ per 1,000 IP addresses: $0.00
- Per: call
- Billing: free

## Charges

- Also pays for: nothing else

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Fast response and accurate data [...] Our real-time geolocation API is trusted by thousands of developers and enterprises worldwide

## Data

- Keep data: no limit
- Use data: "a limited, non-exclusive, non-transferable right to access and use our website, API, documentation, and related materials for your personal or internal business purposes. You agree not to: copy, modify, resell, sublicense, or redistribute our materials or services without our prior written permission, reverse-engineer, decompile, disassemble, or attempt to access the source code of our software, except where permitted by applicable law, transfer, mirror, frame, or make our materials or services available on other servers or platforms without our prior written permission" [...] "You agree to use the API only for lawful purposes and not to use it for spam, fraud, malicious activity, unauthorized scraping, abuse, or any activity that violates applicable law or third-party rights" [...] "We reserve the right to temporarily or permanently limit access to the API in cases of misuse, including but not limited to: excessive request volumes generating traffic comparable to DDoS activity, resale, sublicensing, or unauthorized sharing of API keys with third parties, systematic querying of IP ranges for the purpose of replicating the database, any other usage patterns that fall outside reasonable and fair consumption of the service"

## Plan

- Pay: $0
- You get: 1,000 requests a day
- Enough for: 1,000 calls a day

## Rate limit

- Per day: 1,000
- Batch: 1

## Speed

- Answer: in the call
- Median: 0.01 s

## The call

- You send: nothing required. Optional: IP address, fields, output, lang
- Method: GET
- Path: /{IP address}

## About the plan

- Plan: Free
- Who can get it: anyone, no sign-up or API key

## The 29 fields the plan's answer can hold

IP address, success, IP type, continent, continent code, country, country code, region, region code, city, latitude, longitude, EU member, postal code, calling code, capital, bordering countries, flag image, flag emoji, flag emoji unicode, ASN, organization, ISP, organization domain, time zone ID, time zone abbreviation, daylight saving time, UTC offset in seconds, UTC offset

## ipwhois.io's plans (8)

- [ipwhois.io, free](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/free/llms.txt): $0.00 per 1,000, 50% complete
- [ipwhois.io, $19.99 monthly](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/19-99-monthly/llms.txt): $0.033 per 1,000, 50% complete
- [ipwhois.io, $39.99 monthly, Business, GET /bulk/{IP addresses}](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/39-99-monthly-business-get-bulk-ip-addresses/llms.txt): $0.013 per 1,000, 70% complete
- [ipwhois.io, $99.99 monthly, Unlimited, GET /bulk/{IP addresses}](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/99-99-monthly-unlimited-get-bulk-ip-addresses/llms.txt): no limit, 70% complete
- [ipwhois.io, $199.90 yearly](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/199-90-yearly/llms.txt): $0.028 per 1,000, 50% complete
- [ipwhois.io, $399.90 yearly, Business, GET /bulk/{IP addresses}](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/399-90-yearly-business-get-bulk-ip-addresses/llms.txt): $0.011 per 1,000, 70% complete
- [ipwhois.io, $999.90 yearly, Unlimited, GET /bulk/{IP addresses}](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/999-90-yearly-unlimited-get-bulk-ip-addresses/llms.txt): no limit, 70% complete
- [ipwhois.io, contact us](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/contact-us/llms.txt): 70% complete

## ipwhois.io's calls (3)

- `GET /{IP address}`, Free Endpoint: [ipwhois.io, free](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/free/llms.txt)
- `GET /{IP address}`, Pro Endpoint: [ipwhois.io, $19.99 monthly](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/19-99-monthly/llms.txt)
- `GET /bulk/{IP addresses}`: [ipwhois.io, $39.99 monthly, Business, GET /bulk/{IP addresses}](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/39-99-monthly-business-get-bulk-ip-addresses/llms.txt)

## ipwhois.io's APIs (1)

- [ipwhois.io: IP company lookup API pricing, 8 plans](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/free/llms.txt)

## ipwhois.io: IP company lookup API alternatives

- [DNSlytics, free](https://datacircle.dev/ip-company-lookup-apis/dnslytics/free/llms.txt): $0.00 per 1,000, 30% complete
- [IPBot, free, Anonymous, GET /v1/ip/{ip}](https://datacircle.dev/ip-company-lookup-apis/ipbot/free-anonymous-get-v1-ip-ip/llms.txt): $0.00 per 1,000, 80% complete
- [IP-API.com, free, POST /batch](https://datacircle.dev/ip-company-lookup-apis/ip-api-com/free-post-batch/llms.txt): $0.00 per 1,000, 50% complete, 24 hours
- [ipapi.is, free, POST /](https://datacircle.dev/ip-company-lookup-apis/ipapi-is/free-post/llms.txt): $0.00 per 1,000, 80% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-04.

- https://ipwhois.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipwhois.io/documentation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipwhois.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipwhois.io/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing