+1-301-(2580000...2589999), Rockville, Maryland

• For trunk calls: 0 301 2580000 (Trunk Code + National Destination Code + Subscriber Number)
• For international calls: 011 1 301 2580000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)

2580000 ~ 2589999 (شمارش: 10,000)

Example:

• +1-301-2580000 / 0111-301-2580000 (1301-2580000 / 1-301-2580000)
• +1-301-2580001 / 0111-301-2580001 (1301-2580001 / 1-301-2580001)
• +1-301-2580002 / 0111-301-2580002 (1301-2580002 / 1-301-2580002)
• +1-301-2580003 / 0111-301-2580003 (1301-2580003 / 1-301-2580003)
• +1-301-2580004 / 0111-301-2580004 (1301-2580004 / 1-301-2580004)
• ...
• +1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx)
• ...
• +1-301-2589995 / 0111-301-2589995 (1301-2589995 / 1-301-2589995)
• +1-301-2589996 / 0111-301-2589996 (1301-2589996 / 1-301-2589996)
• +1-301-2589997 / 0111-301-2589997 (1301-2589997 / 1-301-2589997)
• +1-301-2589998 / 0111-301-2589998 (1301-2589998 / 1-301-2589998)
• +1-301-2589999 / 0111-301-2589999 (1301-2589999 / 1-301-2589999)