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Digital library for searching books, documents, images and online collections.

Open Data Repository of the National Academy of Sciences of Ukraine

opendata.nas.gov.ua

Research data portal for exploring chemistry records, including dataset.

Research Data Exchange Platform - Johanna Mestorf Academy

uni-kiel.de

Browse research datasets and datasets related to ancient cultures.

Container tracking search for checking shipment status across carriers and container numbers.

OSINT tool that helps derive possible phone numbers connected to an email using partial number clues.

Encrypted messenger built on decentralized routing for private chats without phone numbers.

Python OSINT tool that checks whether a phone number is linked to accounts on popular online services.

OSINT framework for finding public information linked to phone numbers, emails, usernames, and other identifiers.

People-search service for looking up phone numbers, addresses, names, and public contact records.

Creates separate email aliases, phone numbers, and passwords for online accounts so personal contact details do not need to be shared.

Open source OSINT tool for collecting public information from phone numbers and related online identifiers.

Generates test credit card numbers used for payment form testing and software development.

Explains and analyzes Social Security Number formats for research and educational use.

Provides tools for exploring driver license number formats and encoding methods.

Checker for seeing whether a phone number or profile appears in Facebook-related breach data.

Free reverse phone lookup for checking names, voicemail, address clues, and other public number details.

Google Maps Scraper & Lead Generation Tool. Extract 50+ data points including business emails, phone numbers, and social profiles. Includes enrichment features, API access, and no recurring fees

Checks whether a phone number or email appears in Facebook-related data exposure collections.

ignorant allows you to check if a phone number is used on different sites like snapchat, instagram.

Generates sample IMEI numbers that can be used for software testing and demonstrations.

OSINT phone search hub with links and utilities for researching phone numbers across public lookup services.

ISSN National Centre for Peru

bnp.gob.pe

Numbering agency for periodicals and other serials published in Peru.

Numbering agency for periodicals and other serials published in Spain.

A Python implementation of a number of popular recommendation algorithms for both implicit and explicit feedback.