+358-18-(5800...5809999999), Ahvenanmaa

• For trunk calls: 0 18 5800 (Trunk Code + National Destination Code + Subscriber Number)
• For international calls: 00 358 18 5800 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)

5800 ~ 5809999999 (Arv: 5,809,994,200)

Example:

• +358-18-0000005800 / 00358-18-0000005800 (018-0000005800 / 0-18-0000005800)
• +358-18-0000005801 / 00358-18-0000005801 (018-0000005801 / 0-18-0000005801)
• +358-18-0000005802 / 00358-18-0000005802 (018-0000005802 / 0-18-0000005802)
• +358-18-0000005803 / 00358-18-0000005803 (018-0000005803 / 0-18-0000005803)
• +358-18-0000005804 / 00358-18-0000005804 (018-0000005804 / 0-18-0000005804)
• ...
• +358-18-xxxxxxxxxx / 00358-18-xxxxxxxxxx (018-xxxxxxxxxx / 0-18-xxxxxxxxxx)
• ...
• +358-18-5809999995 / 00358-18-5809999995 (018-5809999995 / 0-18-5809999995)
• +358-18-5809999996 / 00358-18-5809999996 (018-5809999996 / 0-18-5809999996)
• +358-18-5809999997 / 00358-18-5809999997 (018-5809999997 / 0-18-5809999997)
• +358-18-5809999998 / 00358-18-5809999998 (018-5809999998 / 0-18-5809999998)
• +358-18-5809999999 / 00358-18-5809999999 (018-5809999999 / 0-18-5809999999)