<PAGE> 1
EXHIBIT 23.3
CONSENT OF BARRY MORGAN & COMPANY, P.C., INDEPENDENT AUDITORS
We consent to the reference to our firm under the caption "Experts" and to the
use of our report dated March 18, 1998, with respect to the 1997 financial
statements of National Telemanagement Corporation and Subsidiary included in
the Registration Statement (Form S-1) and related Prospectus of Illuminet
Holdings, Inc. for the registration of 4,192,262 shares of its common stock.
Barry Morgan & Company P.C.
Dallas, Texas
July 14, 2000
