Data 21  ·  Technical Support

Support

Technical resources for customers on maintenance and companies actively evaluating a solution. Our support team is available to answer questions during regular business hours — web resources are available 24 / 7.

support@data21.com|M–F  7am – 3pm PST

Hardware Change

Mainframe Hardware Replacement or Addition?

Submit Request  

Regular Hours

M–F  7am – 3pm PST

To open a support issue, email your problem description and related information to support@data21.com.

If you are experiencing a job failure, include the Job (JCL and SYSIN Parameters) plus the SYSPRINT output in the email body or as a .txt attachment. To speak with tech support by phone, include a phone number and best time to call.

After Hours Emergency

Production Emergencies

Start by sending email to support@data21.com with the Job (JCL and SYSIN Parameters) plus the SYSPRINT output in the email body or as a .txt attachment.

For issues of an immediate critical nature that cannot wait until the next business day, call 310-870-7221, Option 3 for after hours support — after sending the email.

Data 21

Over 45 Years of Mainframe Solutions

Data 21 Enterprising Software

Data 21, the Data 21 logo, and all other Data 21 software product and service names are trademarks of Data 21. All other trademarks belong to their respective companies. © Copyright 2026 Data 21. PKZIP®, PKWARE®, SecureZIP® are trademarks of PKWARE® and are not affiliated with Data 21.

Data 21

About Data 21

Founded in 1980, Data 21 Inc. is a veteran-owned enterprise software company headquartered in California. For over 45 years, we have delivered innovative, reliable, high-performance mainframe-centric solutions that power today’s connected enterprise.

Our software is embedded in the critical daily operations of hundreds of enterprises worldwide — a testament to our commitment to exceptional engineering and long-term client success. We don’t just support our customers; we evolve alongside them.

At Data 21, the mainframe isn’t a legacy constraint — it’s a strategic foundation.

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