PostcodeBase.com is a comprehensive network of websites dedicated to providing accurate, detailed, and accessible postal code information for over 100 countries and regions worldwide. We empower individuals, businesses, and developers with the data they need to connect, operate, and innovate on a global scale.
Our flagship U.S. ZIP+4 Code database, distributed across 51 dedicated state sub-sites, offers an unparalleled level of detail, including demographic and economic data. This commitment to depth and quality is the standard we apply across our entire global network.
Our History: A Decade of Development
Our journey is defined by continuous innovation, data enrichment, and a deep commitment to serving our users' evolving needs.
- 2011
- 2012
- 2013
- 2014
- 2015-2018
- 2019-2023
- 2024-Present
Our story began with the creation of a specialized network for the United States 9-Digit ZIP Code website, launching 51 individual sub-sites for each state and Washington D.C. This established our expertise in managing complex postal data.
We launched a mobile-friendly version of our U.S. 9-digit ZIP Code network. Building on this success, we introduced the PostcodeBase.com global series, rapidly expanding to over 130 countries and regions with support for more than 50 languages and a mobile-first design.
We continued to expand the PostcodeBase.com network by adding new country sub-sites and enhancing multi-language support. This year also marked the Postcode Database Supermarket, making our curated postal code datasets available for commercial use.
A pivotal moment came with the establishment of our parent company, Wuhan Duoku Science & Technology Co., Ltd. This provided a formal structure to deliver more stable, high-quality services to our global user base.
We executed a major, multi-country data update in 2015. In 2017, we rolled out AMP (Accelerated Mobile Pages) versions across the network to ensure the fastest possible user experience. In 2018, we focused on systematically improving the information quality across all sub-sites and language versions.
This period was marked by a significant investment in our 51 U.S. sub-sites, beginning with a full data update for the network in 2019. This foundational refresh paved the way for a complete redesign of the U.S. sites in 2020, which introduced an improved user interface, the integration of U.S. population and economic data with interactive charts, and enhanced tools like the Random Address Generator and a full ZIP+4 lookup. From 2021 to 2023, we continued to build on this progress by updating data products on our sales portal, adding comprehensive U.S. Post Office data, and consistently refining our address generator and core U.S. datasets.
We initiated a new wave of updates and upgrades across our international sites, implementing new data and advanced postal code lookup tools. Key sites modernized include Senegal Postal Code, Morocco Postal Code, Pakistan Postal Code, Bangladesh Postal Code, the Philippines Postal Code, and Tunisia Postal Code. In 2025, the Afghanistan Postal Code site was similarly upgraded with new data and enhanced tools.
Empowering Our Users
PostcodeBase.com is more than a directory; it's a tool designed to provide solutions.
- For Individuals: We offer a fast, free, and easy way to find and verify postal codes for sending mail, completing forms, and confirming location details anywhere in the world.
- For Businesses: Our accurate and up-to-date data is crucial for logistics, shipping verification, marketing analysis, and customer database management, helping to reduce errors and improve operational efficiency.
- For Developers & Researchers: Through our data sales portal and feature-rich sites, we provide high-quality, structured datasets and tools for a wide range of applications, from software development to academic research.
- Email: [email protected]
- Company: Wuhan Duoku Science & Technology Co., Ltd.
- Address: Room A507, Block 2, Xinhonghu Building, No. 79, Jiangxing Road, Jianghan District, Wuhan, Hubei, 430024, China
- Phone: +86-27-82358178 (9:00 - 17:00, Monday - Friday, UTC+8)
Our long history of data management, continuous updates, and technological innovation makes PostcodeBase.com a trusted and authoritative resource for all postal code needs.
Contact Us
For inquiries, data licensing, or partnership opportunities, please reach out.
