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Points of Contact for Billing and Technical Questions
Please direct billing questions to the GSA Billing Service Center
representative for your region.
Region
Contactname
Phone
Regions 1-10 (TOPS)
tbmrequest@gsa.gov
-
National Capital Region (WITS)
witsbilling@gsa.gov
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If you are in the Washington, DC area and the first three digits of the six-digit
Customer Number is 305, 306, 350, 351, 370, 371, 372 or 37(alpha), your service
center is the National Capital Region.
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Modified: 09.21.2021