+1-301-(3133000...3133999), Berwyn, Maryland

• For trunk calls: 0 301 3133000 (Trunk Code + National Destination Code + Subscriber Number)
• For international calls: 011 1 301 3133000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)

3133000 ~ 3133999 (العدد: 1,000)

Example:

• +1-301-3133000 / 0111-301-3133000 (1301-3133000 / 1-301-3133000)
• +1-301-3133001 / 0111-301-3133001 (1301-3133001 / 1-301-3133001)
• +1-301-3133002 / 0111-301-3133002 (1301-3133002 / 1-301-3133002)
• +1-301-3133003 / 0111-301-3133003 (1301-3133003 / 1-301-3133003)
• +1-301-3133004 / 0111-301-3133004 (1301-3133004 / 1-301-3133004)
• ...
• +1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx)
• ...
• +1-301-3133995 / 0111-301-3133995 (1301-3133995 / 1-301-3133995)
• +1-301-3133996 / 0111-301-3133996 (1301-3133996 / 1-301-3133996)
• +1-301-3133997 / 0111-301-3133997 (1301-3133997 / 1-301-3133997)
• +1-301-3133998 / 0111-301-3133998 (1301-3133998 / 1-301-3133998)
• +1-301-3133999 / 0111-301-3133999 (1301-3133999 / 1-301-3133999)