Terms of Service

Last updated: 22 March 2026 — Please read these Terms carefully before using our website.

1. Acceptance of Terms

By accessing and using macaddresslookups.com (the “Website”), you accept and agree to be bound by these Terms of Service and our Privacy Policy. If you do not agree with any part of these terms, you must not use this website.

2. Description of Service

macaddresslookups.com provides a free online tool for looking up MAC address vendor information using the publicly available IEEE OUI (Organizationally Unique Identifier) database. The service includes search functionality, database statistics, and downloadable database files.

3. Permitted Use

You may use this website for lawful purposes only. Permitted uses include:

  • Looking up vendor information for network administration and troubleshooting
  • Security research and auditing of networks you own or have permission to test
  • Educational and research purposes
  • Downloading the database for legitimate personal or commercial projects

4. Prohibited Use

You must not use this website to:

  • Conduct any unlawful activity or violate any applicable laws or regulations
  • Attempt to gain unauthorised access to computer systems, networks, or data
  • Send excessive automated requests or scrape the website without prior written consent
  • Interfere with or disrupt the integrity or performance of the website
  • Transmit any harmful, offensive, or malicious content
  • Violate the privacy of any individual or third party
  • Misrepresent the source or accuracy of MAC address data

5. Data Accuracy

All MAC address vendor data is sourced from the IEEE Standards OUI Registry. We make reasonable efforts to keep the database current, but we do not guarantee the accuracy, completeness, or timeliness of any data. The data is provided “as is”. For authoritative and legally binding information, always refer directly to the IEEE.

6. Intellectual Property

The IEEE OUI data is published by the IEEE and is subject to their terms of use. The website design, code, and original content of macaddresslookups.com are the property of macaddresslookups.com. You may not reproduce, distribute, or create derivative works from our website content without prior written permission, except as permitted by applicable law.

The downloadable database files are provided for personal and commercial use, provided that you attribute the source as the IEEE OUI Registry and do not represent the data as your own original work.

7. Advertisements

This website displays advertisements served by Google AdSense and potentially other third-party advertising networks. We are not responsible for the content of any advertisement displayed on this website. Clicking on advertisements may take you to third-party websites whose terms and privacy policies are independent of ours.

8. Disclaimer of Warranties

This website and its content are provided on an “as is” and “as available” basis without any warranties of any kind, either express or implied, including but not limited to implied warranties of merchantability, fitness for a particular purpose, or non-infringement. We do not warrant that the website will be uninterrupted, error-free, or free of viruses.

9. Limitation of Liability

To the fullest extent permitted by applicable law, macaddresslookups.com shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising out of or related to your use of, or inability to use, this website or its content, even if we have been advised of the possibility of such damages.

10. Third-Party Links

Our website may contain links to third-party websites, including the IEEE website and Google services. These links are provided for your convenience only. We have no control over the content of those sites and accept no responsibility for them or for any loss or damage that may arise from your use of them.

11. Changes to Terms

We reserve the right to modify these Terms at any time. Changes take effect immediately upon posting. Your continued use of the website after changes are posted constitutes acceptance of the new Terms.

12. Governing Law

These Terms shall be governed by and construed in accordance with applicable laws. Any disputes arising under these Terms shall be subject to the exclusive jurisdiction of the competent courts.

13. Contact

For questions about these Terms, please contact us at:
macaddresslookups@gmail.com — or visit our Contact page.