In Russia, postal codes (or pochtovyy indeks ) are strictly six digits long and are used nationwide to facilitate mail sorting and delivery. While specific five-digit ZIP codes like exist in the United States (e.g., Yukon, Pennsylvania ), the full six-digit string identifies a more specific location within the Russian postal network. Location Details: Kostroma Oblast

The numerical sequence is a six-digit postal code used in Russia , specifically within the Kostroma Oblast .

: Uses a six-digit PIN (Postal Index Number), which has a similar format to the Russian system but different regional assignments.