Consent of Independent Certified Public Accountants
We have issued our report dated September 15, 2000 accompanying the
financial statements of Insured Municipals Income Trust, 183rd Insured
Multi-Series as of July 31, 2000, and for the period then ended, contained in
this Post-Effective Amendment No. 5 to Form S-6.
We consent to the use of the aforementioned report in the Post-
Effective Amendment and to the use of our name as it appears under the caption
"Auditors".
Grant Thornton LLP
Chicago, Illinois
November 22, 2000
