Trusted by 500M+ people worldwide • The World’s Best Caller ID and Spam Blocking App
Verified Global Directory
Try WhoCalled for Free

Identify Unknown Callers. Block Spam.

Verify telephone operator circles, block fraudulent calls, query corporate locations, and search caller details globally across our secure, verified network database.

Google Play Rating
4.5
App Store Rating
4.5
Smartphone call lookup caller ID and spam notification mockup

150M+

Directory Records

50M+

Verified Contacts

8M+

Spam Records Listed

99.99%

Service Availability

Enterprise Directory Features

Reverse Lookup

Instantly discover the registered name behind unknown phone numbers using operator database matching.

Spam Prevention

Identify fraudulent, telemarketing, and spam numbers before picking up the incoming call.

Business Profiles

Obtain verified business directories, registered office addresses, and industry categories.

Core Search Engine

Advanced data parsing filters and tokenizes directory queries for clean lookup matches.

Worldwide Database

Cross-border record scanning supports multiple phone system operators and international regions.

Privacy First

Lookup details are strictly private and protected. User opt-out controls are available globally.

How It Works
1

Input Query

Type any mobile number, name, or corporate record into our search field.

2

Core Search

Our backend queries indexed document shards across operator-linked telecom databases.

3

Verify Profile

Review caller name registry, location circle, networks, and spam warnings in real time.

Transparent, Flexible Pricing
Monthly Billing
Yearly Billing Save 41%

Basic Lookups

Ideal for sandbox queries and basic reverse lookups.

0 /mo
  • 100 queries per month
  • Standard query latency
  • Community database support

Enterprise Node

For high-throughput commercial operator networks.

499 /mo
  • Unlimited batch API queries
  • Dedicated cluster databases
  • Custom API pipeline links
  • Dedicated Slack SLA (15m response)
Frequently Asked Questions
What is WhoCalled.in?
WhoCalled.in is a premium reverse directory lookup platform that matches unknown numbers against database shards to identify callers, business registration names, and circles.
How does spam blocking identification work?
Our platform pools crowd-sourced spam warnings and compares query hashes with operators' active fraudulent list records to rate phone risk level scores.
Is my personal lookup directory private?
Yes. All search calls are secure and anonymized. Your history is not public. Users can also delist their details permanently via our Opt-Out Directory.
How can I integrate the WhoCalled API?
Developers can query the REST API endpoint `/api/search` with their secret auth tokens. Head to the API Docs section to generate a sandbox key and copy curl snippets.