MVNO HSS IoT HSS and Private 5G HSS are an evolution (4G, LTE, 5G) of the HLR, which is basically a realtime database of all subscribers on the network and holds the information of which cell a customer is located, the next cell for MVNO handover and MVNO handoff, as well as Private Network cell attach data and any send to voicemail options, which MME a subscriber is attached to as well as the Realm, host with 4G and 5G MVNOs and previously VLR location in 3G MVNO. Modern HSS have GUIs which have massively enhanced the MVNO digital transformation, contact us if you wish to know how and see a demonstration with our own HSSs