Locator codes (sometimes known as postcodes) are the main code system for sending mail in Ostrobia. All mail sent is managed by Ostrobia Post. It uses an alphanumeric system similar to that of the United Kingdom. Postcodes are also adopted for the use of route planning software, and as an official census unit.

A typical locator code uses first, a one-letter zone code, followed by one or two digits representing a within-zone district, followed by two digits representing a unit of multiple addresses, or of a single delivery point. For instance the Stone Age Museum at Grijndervet Historical Site has the LVR locator code B-1452, where 'B' represents (most of) the state of Maine, '14' represents the farmwood within Synathal County, and '52' is a unique large-volume unit code.


Treien postal districtEdit

The Treien postal district first came into use in 1933, when, similarly to London's system, the areas of the city were divided by area, to 'E', 'W', 'NW', 'NE', 'N', 'SW', 'SE', 'S' and 'C'. This system was used for several decades. A similar system came into use in Seblo in the 1940s, however these zones were sorted numerically. For instance, what is today Media City Ostrobia, was in zone 10, and indeed the locator 'T10' is still used for the Banning area.

Introducing locatorsEdit

Locator codes were first introduced in their modern form during late 1971, when they were used for the area of Tenarite, which had 9 zones from D1-D9. Later much of Ostrobia followed through the 1970s, with the last area to have their locators finalised being the area around Lovetts in Stratoherra, which became R21 in January 1982.


Generally formatting can use any rules, however the letters 'I' and 'O' are not used, to avoid confusion with the numbers 1 and 0 ('Q' is likewise unused), and a single-digit district like A2 is always 'A2', never 'A02'.

List of post zonesEdit