• [+] Postal codes by country (5 C, 67 P)
• [+] Postage stamps by country (15 C, 209 P)

A

• [+] Postal system of Australia (1 C, 13 P)

C

• [+] Canada Post (3 C, 8 P)
• [+] Postal system of China (2 P)

G

• [+] Postal system of Germany (5 P)

H

• [+] Postal system of Hong Kong (1 C, 7 P)

I

• [+] Postal system of India (3 C, 7 P)
• [+] Republic of Ireland postal system (12 P)

J

• [+] Postal system of Japan (2 P)

N

• [+] Postal system of the Netherlands (2 P)
• [+] Postal system of Norway (4 P)

P

• [+] Postal system of New Zealand (9 P)

S

• [+] Postal system of Singapore (2 P)

U

• [+] Postal system of the United Kingdom (3 C, 36 P)
• [+] United States Postal Service (6 C, 66 P, 1 F)

• List of national postal services

A

• Posta Shqiptare
• Postal services in Andorra

G

• German letter monopoly

I

• Íslandspóstur

I cont.

• Iran Post

K

• Kenya Posts and Telecommunications Corporation

M

• Magyar Posta
• Addresses in Malaysia

N

• Nicaraguan Postal Service

N cont.

• Nigerian Postal Service

P

• Postal addresses in the Philippines
• Poczta Polska
• PTT (Turkey)

S

• Swiss Post