+1-301-(2551000...2551999), Kensington, Maryland

• For trunk calls: 0 301 2551000 (Trunk Code + National Destination Code + Subscriber Number)
• For international calls: 011 1 301 2551000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)

2551000 ~ 2551999 (شمارش: 1,000)

Example:

• +1-301-2551000 / 0111-301-2551000 (1301-2551000 / 1-301-2551000)
• +1-301-2551001 / 0111-301-2551001 (1301-2551001 / 1-301-2551001)
• +1-301-2551002 / 0111-301-2551002 (1301-2551002 / 1-301-2551002)
• +1-301-2551003 / 0111-301-2551003 (1301-2551003 / 1-301-2551003)
• +1-301-2551004 / 0111-301-2551004 (1301-2551004 / 1-301-2551004)
• ...
• +1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx)
• ...
• +1-301-2551995 / 0111-301-2551995 (1301-2551995 / 1-301-2551995)
• +1-301-2551996 / 0111-301-2551996 (1301-2551996 / 1-301-2551996)
• +1-301-2551997 / 0111-301-2551997 (1301-2551997 / 1-301-2551997)
• +1-301-2551998 / 0111-301-2551998 (1301-2551998 / 1-301-2551998)
• +1-301-2551999 / 0111-301-2551999 (1301-2551999 / 1-301-2551999)