Network node number

‘For a unique name, each network node shall be given a 7-digit number. The first 4 digits consist of the number of the sheet of the topographic map 1:25,000 (measuring table sheet), within which the net node is located. Within each map sheet, all net nodes are then numbered, regardless of the road class in which they lie. 3-digit numbers are used for numbering. This number shall be attached to the number of the corresponding card sheet (e.g. Fig. 2, NK 5208 076). Source: ASB Core System, 2.04