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Contact MISO

The MISO Help Center is the best place to start for your questions or requests. Search or browse hundreds of knowledge articles or create a Case to have a client services representative or the MISO IT Operations Center assist you.

Visit the Help Center

For questions about OASIS, the Market Portal or other MISO-related network activity, contact our IT Operations Center 24 hours a day, seven days a week.

IT Operations Center
24-hour service
866-296-6476, option 1  


317-249-5650 or E-mail us.

Employment Verification

Visit www.theworknumber.com, select “Get Started Now” and use the following information:

  1. Employer Code is 106806
  2. Employee’s Social Security Number


Visitors and Deliveries

Headquarters & Central Region Operations Center 
Visitors and Delivery Hours:
Monday - Friday 8 a.m. - 5 p.m. ET

Physical Address:  Delivery Address:
720 City Center Drive
Carmel, IN  46032-3826    
  P.O. Box 4202
 Carmel, IN 46082-4202 

Phone: 317-249-5400
Fax: 317-249-5910
Carmel Map

North Region Operations Center
Visitors and Delivery Hours:
Monday - Friday 8 a.m. - 5 p.m. CT
2985 Ames Crossing Rd   
Eagan, MN 55121
Phone: 651-632-8400
Fax: 651-632-8417
Eagan map 

South Region Operations Center
Visitors and Delivery Hours: 
Monday - Friday 8 a.m. - 5 p.m. CT
1700 Centerview Drive
Little Rock, AR 72211
Phone: 501-244-1500
Little Rock Map

2021 MISO Observed Holidays 

 MISO offices will be closed on the following dates. 

Holiday Date Observed
New Year's Day  January 1
Martin Luther King Day  January 18
President's Day  February 15
Memorial Day  May 31
Independence Day  July 5
Labor Day  September 6
Thanksgiving Day  November 25
Day after Thanksgiving  November 26
Christmas Eve  December 24
Christmas Day December 27

Suppliers and Vendors

At MISO, we value the diversity of our employees, suppliers and stakeholders for their various ideas, approaches and solutions. Our Supplier Diversity Enterprise Program helps further ensure that we include small, disadvantaged, minority and women-owned businesses in our strategic sourcing and procurement processes. Through our support of diverse suppliers, we hope to contribute to long-term community and economic stability.