Atomic structures of (AgI)x(AgPO3)1-x glasses for x = 0.0, 0.1, 0.2, 0.3 and 0.5 have been investigated by X-ray diffraction. Coordination numbers and atomic distances in the near-neighbour region were determined by the least-squares variational method. The coordination numbers of P-O, P-P and O-O pairs are unchanged with x, which suggests no modification of the connectivity of the PO4 tetrahedral chains by doping with AgI. The coordination number of I- around Ag+ linearly increases from 0 to 1.9 + 0.2 with increase in x, while the coordination number of O2- around Ag+ linearly decreases from 5.1 +/- 0.2 to 2.5 +/- 0.2. This also suggests that the AgI gets into the PO4 chains while keeping the local environment of the AgI itself.