# ip.sb, free: IP company lookup API

> A free REST API for IP addresses. Get the caller's own IP as plain text or JSON, or look up the location of any IPv4 or IPv6 address. Every endpoint answers with CORS and JSONP, so it works straight from a browser. No key, no sign-up.

ip.sb's Free plan for the IP company lookup API costs $0.00 per 1,000 IP addresses. ip.sb's docs list 4 of the 10 fields on our checklist: Owner's name, ASN, Country, Region and city.
ip.sb limits how many calls you get but gives no number.
We haven't run ip.sb through [our IP company lookup API benchmark](https://datacircle.dev/best-ip-company-lookup-api.txt) yet.
This plan is free. We rank 398 plans for IP company lookup APIs by price. Half the plans cost $0.112 per 1,000 IP addresses or less. [See the best free IP company lookup API plan.](https://datacircle.dev/best-ip-company-lookup-api.txt)
[IPHunter's €99.99 monthly plan](https://datacircle.dev/ip-company-lookup-apis/iphunter/99-99-monthly/llms.txt) is the cheapest paid plan per 1,000 IP addresses. IPHunter's €99.99 monthly plan covers up to 11,520,000 IP addresses a day.
[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/ip-sb/free
- [IP company lookup API: the 15 best providers compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://ip.sb/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `GET https://api.ip.sb/geoip/{ip}`
- API key: not needed
- Its API docs: https://ip.sb/api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Sold by: ip.sb (https://ip.sb?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-06

## In the answer

- Completeness: 40%
- Owner's name: ✓
- ASN: ✓
- Country: ✓
- Region and city: ✓

## Price

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

## Charges

- Also pays for: from the same budget: Your IP address, as plain text · Your IP address, as JSON

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: A free REST API for IP addresses. Get the caller's own IP as plain text or JSON, or look up the location of any IPv4 or IPv6 address. Every endpoint answers with CORS and JSONP, so it works straight from a browser. No key, no sign-up.

## Data

- Keep data: no limit
- Use data: You may use the Service for lawful purposes only. [...] Free: Personal and evaluation use ✓, Commercial and production use ✗. Enterprise: Cleared for commercial and production use.

## Plan

- Pay: $0

## Rate limit

- Per second: 1.67
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: ip
- Method: GET
- Path: /geoip/{ip}

## About the plan

- Plan: Free
- Who can get it: anyone, for personal and evaluation use, commercial and production use is on Enterprise

## The 16 fields the plan's answer can hold

IP address, ISP, organization, ASN, ASN organization, country code, country, region code, region, city, postal code, continent code, latitude, longitude, time zone, UTC offset

## ip.sb's plans (2)

- [ip.sb, free](https://datacircle.dev/ip-company-lookup-apis/ip-sb/free/llms.txt): $0.00 per 1,000, 40% complete
- [ip.sb, contact us](https://datacircle.dev/ip-company-lookup-apis/ip-sb/contact-us/llms.txt): 40% complete

## ip.sb's calls (1)

- `GET /geoip/{ip}`: [ip.sb, free](https://datacircle.dev/ip-company-lookup-apis/ip-sb/free/llms.txt)

## ip.sb's APIs (1)

- [ip.sb: IP company lookup API pricing, 2 plans](https://datacircle.dev/ip-company-lookup-apis/ip-sb/free/llms.txt)

## ip.sb: 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
- [ipwhois.io, free](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/free/llms.txt): $0.00 per 1,000, 50% 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
- [ip.guide, free](https://datacircle.dev/ip-company-lookup-apis/ip-guide/free/llms.txt): $0.00 per 1,000, 30% 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 2026-11-06.

- https://api.ip.sb/geoip/172.225.7.7?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ip.sb?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ip.sb/api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ip.sb/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ip.sb/privacy-policy/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ip.sb/terms-of-use/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing