Here are the Royal Mail's postal zones, which you might need to check if you're ordering stuff from us:

Europe

Albania
Andorra
Armenia
Austria (EU)
Azerbaijan
Azores (EU)
Balearic Islands (EU)
Belarus
Belgium (EU)
Bosnia Herzegovina
Bulgaria (EU)
Canary Islands
Corsica (EU)
Croatia
Cyprus (EU)
Czech Republic (EU)
Denmark (EU)
Estonia (EU)
Faroe Islands
Finland (EU)
France (EU)
Georgia
Germany (EU)
Gibraltar (EU)
Greece (EU)
Greenland
Hungary (EU)
Iceland
Irish Republic (EU)
Italy (EU)
Kazakhstan
Kosovo
Kyrgyzstan
Latvia (EU)
Liechtenstein
Lithuania (EU)
Luxembourg (EU)
Macedonia
Madeira (EU)
Malta (EU)
Moldova
Monaco (EU)
Montenegro
Netherlands (EU)
Norway
Poland (EU)
Portugal (EU)
Romania (EU)
Russia
San Marino
Serbia
Slovakia (EU)
Slovenia (EU)
Spain (EU)
Spitzbergen
Sweden (EU)
Switzerland
Tajikistan
Turkey
Turkmenistan
Ukraine
Uzbekistan
Vatican City State

World Zone 1
World Zone 1 covers the United States, Canada, and all countries not listed in either Europe or World Zone 2.

World Zone 2
Australia
Belau (Palau)
China – People’s Republic (inc. Tibet)
East Timor
Fiji
French Southern & Antarctic Territories (Surface Mail only)
French Polynesia
Guam
Japan
Kiribati
Korea (Democratic People’s Republic)
Korea (Republic of)
Marshall Islands
Micronesia (Federated States)
Mongolia
Nauru Islands
New Caledonia
New Zealand
New Zealand Island Territories
Norfolk Island
North Mariana Island
Papua New Guinea
Philippines
Pitcairn Island
Samoa (American)
Solomon Islands
Taiwan
Tonga
Tuvalu
Vanuatu
Wake Island
Wallis and Futuna Islands
Western Samoa