ORTWIN is a software that offers various features such as finding postal zip codes, telephone pre-selections, coordinates, landscapes, and snow and wind load zones in Germany. The software also performs perimeter searches and distance calculations.

The program has a unique way of arranging localities hierarchically into structures such as federal state, administrative district, rural district, town, municipality, local quarter, and domicile. Additionally, it performs perimeter searches and distance calculations to get the exact location of the area searched. With its ability to find landscapes on different levels, natural units, and snow-and wind load zones of all localities, searching for a specific area becomes fast and easy.
Furthermore, ORTWIN has a feature that represents local data graphically, producing overviews and data lists for easy understanding. The program also supports conversions between different coordinate systems and calculates distances between places. It calculates with Gauss Krueger coordinates referring to the Potsdam Datum (Bessel ellipsoid, Rauenberg), geographic coordinates on the geodetic datum WGS84, and UTM coordinates, which refer to the datum ETRS89 (GRS80, geocentric).
Users of ORTWIN also have access to a database containing over 120.000 geo-coded localities for local inquiries and perimeter searches. With this program, it is possible to carry out searches within a radius around a place or postal code area, and localities and postal areas can be arranged in a list, stored as a file, and printed.
The program's functionality has been described in detail in an electronic manual for users to get a grasp of its workings. Additionally, it can be run on the most common networks, and terminal services on WINDOWS servers can be used. The installation of client applications is also automatic.
In conclusion, ORTWIN is a powerful software program that streamlines searches for localities, postal codes, and telephone selections in Germany. Its unique features and functionalities make it a must-have for anyone looking to carry out such inquiries.
Version 17.03: Program is faster and more stable using a new development system. All databases actualized on 1st. January 2021. Territorial Reform in Thuringia of the year 2019 implemented. View of localities in OpenStreetMap, Google Maps, Google Earth. Determining the wind load zones and snow load zones.