+1-301-(2980000...2980999), Upper Marlboro, Maryland

• For trunk calls: 0 301 2980000 (Trunk Code + National Destination Code + Subscriber Number)
• For international calls: 011 1 301 2980000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)

2980000 ~ 2980999 (العدد: 1,000)

Example:

• +1-301-2980000 / 0111-301-2980000 (1301-2980000 / 1-301-2980000)
• +1-301-2980001 / 0111-301-2980001 (1301-2980001 / 1-301-2980001)
• +1-301-2980002 / 0111-301-2980002 (1301-2980002 / 1-301-2980002)
• +1-301-2980003 / 0111-301-2980003 (1301-2980003 / 1-301-2980003)
• +1-301-2980004 / 0111-301-2980004 (1301-2980004 / 1-301-2980004)
• ...
• +1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx)
• ...
• +1-301-2980995 / 0111-301-2980995 (1301-2980995 / 1-301-2980995)
• +1-301-2980996 / 0111-301-2980996 (1301-2980996 / 1-301-2980996)
• +1-301-2980997 / 0111-301-2980997 (1301-2980997 / 1-301-2980997)
• +1-301-2980998 / 0111-301-2980998 (1301-2980998 / 1-301-2980998)
• +1-301-2980999 / 0111-301-2980999 (1301-2980999 / 1-301-2980999)