In January 2015, the Ukrainian postal operator (Ukrposhta) advised that delivery services have been suspended for international mail addressed to certain localities in the Donetsk and Luhansk regions of Ukraine (generally in the postal code ranges 83001-87650 and 91001-94870). The specific localities and postal codes where service is suspended are listed on Ukrposhta’s website (click here).
That web-site notes that international postal items to the above localities may be sent as Poste Restante (General Delivery) to post offices in localities that are controlled by Ukrainian government authorities, and provides instructions for addressing such items.
Delivery services for international mail addressed to Crimea (postal codes in the range 95000–99999) are still suspended.
The temporary suspension affects Priority Mail Express International®, Priority Mail International®, First-Class Mail International®, First-Class Package International Service™, International Priority Airmail™ (IPA®), International Surface Air Lift® (ISAL®) and M-Bag items.
For Global Express Guaranteed® Service
Effective immediately, USPS can no longer accept Global Express Guaranteed (GXG) shipments to certain cities in the Crimea, Donetsk and Luhansk regions in Ukraine. View the list of cities to which GXG service is temporarily suspended.