A technique for allocating Home Location Register (HLR) addresses in a network in which HLR subscription data is stored in a central data repository for access by multiple HLR entities is presented. A method implementation of the technique comprises allocating, to an HLR entity, two or more virtual HLR addresses, wherein each virtual HLR address is associated with an individual set of subscriber identifiers for which HLR subscription data is stored in the central data repository.