OSINT search engines for reverse phone lookups

11 April 2025 4 minutes Author: Cyber Witcher

During pentests, OSINT investigations, or red-blue operations, it is important to have proven tools for analyzing phone numbers. Reverse number lookups allow you to gather information about a person, determine their location, carrier, or detect fake activity.

OSINT search engines

NumLookup

A free online reverse phone number lookup service in the US that allows you to quickly find out who owns a number without the need to register or install any apps.

CLICK HERE

SpyDialer

Allows you to find out who called, check voicemail, and find out the name of the number owner. Especially useful for detecting robocalls or advertising calls.

CLICK HERE

WhitePages

One of the most comprehensive and convenient services for searching for people in the US. Includes phone numbers, addresses, emails, court records.

CLICK HERE

EmobileTracker

Determines the mobile phone owner’s name, country, mobile operator, and city using MCC, MNC, and other data.

CLICK HERE

Phone Validator

Instant number checker tool: detects whether it is valid, what type it is (mobile, landline), and whether it may be fake or spoof.

CLICK HERE

Free Carrier Lookup

A fast and accurate way to identify mobile carrier by phone number. Supports most US carriers and useful for VoIP filtering.

CLICK HERE

RocketReach

A professional platform for searching for email addresses and phone numbers of professionals in any field. Allows you to see a person’s connections and social profiles.

CLICK HERE

sync.me

Detects unknown calls, displays the caller’s photo, social networks, and analyzes the number’s presence in spam or phone fraud databases.

CLICK HERE

National Cellular Directory

A platform for searching personal data by phone number with the possibility of daily free queries. Works with mobile and landline numbers.

CLICK HERE

Tellows

A platform for analyzing suspicious calls, spam, and fraudulent numbers with a large number of user reviews and databases of dangerous callers.

CLICK HERE

truepeoplesearch.com

One of the most in-depth services that allows you to find out the address, email, phone, neighbors, relatives, and other personal data in just a few clicks.

CLICK HERE

thisnumber.com

A global database of telephone directories covering many countries around the world. Very useful for international investigations or checking unfamiliar codes.

CLICK HERE

Reverse Phone Lookup

A simple but effective platform for quickly identifying the owner of a phone number, with a minimalist interface and fast results.

CLICK HERE

usphonebook.com

Free online USA directory with information about the number owner, address, email, relatives, and social media profiles.

CLICK HERE

ThatsThem

A universal OSINT tool for searching for people by phone number, email, car VIN code, IP address, or physical address.

CLICK HERE

SynapsInt

Powerful OSINT harvester that combines dozens of sources in a single interface. Works with phones, domains, IP, email, and social networks.

CLICK HERE

C99.nl

A resource with over 57 APIs for OSINT: search by email, IP, phone, domain, social networks. Suitable for automating OSINT processes.

CLICK HERE

ValidNumber.com

A resource with over 57 APIs for OSINT: search by email, IP, phone, domain, social networks. Suitable for automating OSINT processes.

CLICK HERE

CellIdFinder

A tool that allows you to determine the location of a GSM tower using Cell ID, MCC, MNC and LAC. Useful for triangulating coordinates.

CLICK HERE

OldPhoneBook

An archive database of US phone books for the last 20 years, which provides the ability to search through historical data for retrospective research.

CLICK HERE

Spokeo

Collects data from open sources: social networks, photos, email, phone, publications. Shows a complete picture of a person’s digital presence.

CLICK HERE

Intelius Phone Lookup

Determines who owns the number, in which city it is registered, type of connection (mobile/landline), provides additional data.

CLICK HERE

ZabaSearch Phone Lookup

Displays information about social connections, online activity, photos, and other traces that the number owner leaves online.

CLICK HERE

AnyWho Phone Lookup

Allows you to search by number, last name, address or state code, especially effective for US bases, updated weekly.

CLICK HERE

Radaris Phone Lookup

A service that allows you to quickly find out who called, find the owner of a phone number, view data associated with it, and establish connections with other people, addresses, or email accounts.

CLICK HERE

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