Scheduling Information
For questions pertaining to MISO's scheduling system and procedures, please call 317-249-5511 (24-hour scheduling number in Carmel), 317-249-5512 (24-hour telephone number for checkout for all MISO Control Areas).

Tariff Information
For questions about MISO Tariff or business rules related to the Tariff and OASIS, please contact the MISO's 24-hour tariff administration telephone number 317-249-5523. You also can direct e-mail to Generation&Interchange-All@misoenergy.org.

IT Help Desk Information
For questions pertaining to trouble accessing the MISO OASIS (or other IT related problems), please contact the IT Help Desk. The Help Desk is available on a 24 by 7 basis. You may contact the Help Desk by calling 1-866-626-MISO(6476). Please do not call this number for non-IT related questions. In those instances, please call the Operations Issues Call Center or other appropriate number.

Operations Issues Call Center
For questions relating to any MISO operations topic, please call 866-296-MISO (6476).

Customer Registration Information
If you are not yet a customer of the MISO, you may find information on how to register to become a customer on the MISO's Internet site (https://www.misoenergy.org/StakeholderCenter/Pages/StakeholderCenter.aspx). If you have submitted your registration information and have questions about your status or the registration process, you can send email to register@misoenergy.org.

South Region Integration
For the South Integration, follow this link.