EXHIBIT - 23.2 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in this Registration Statement of CAIS Internet, Inc. on Form S-3 of our report dated October 22, 1999 on the financial statements of ATCOM, Inc., appearing in the Current Report on Form 8- K/A of CAIS Internet, Inc. dated November 12, 1999, and to the reference to us under the heading "Experts" in the Prospectus, which is part of this Registration Statement. DELOITTE & TOUCHE LLP San Diego, California June 1, 2000