+1-301-(2190000...2199999), Bethesda, Maryland

• For trunk calls: 0 301 2190000 (Trunk Code + National Destination Code + Subscriber Number)
• For international calls: 011 1 301 2190000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)

2190000 ~ 2199999 (จำนวน: 10,000)

Example:

• +1-301-2190000 / 0111-301-2190000 (1301-2190000 / 1-301-2190000)
• +1-301-2190001 / 0111-301-2190001 (1301-2190001 / 1-301-2190001)
• +1-301-2190002 / 0111-301-2190002 (1301-2190002 / 1-301-2190002)
• +1-301-2190003 / 0111-301-2190003 (1301-2190003 / 1-301-2190003)
• +1-301-2190004 / 0111-301-2190004 (1301-2190004 / 1-301-2190004)
• ...
• +1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx)
• ...
• +1-301-2199995 / 0111-301-2199995 (1301-2199995 / 1-301-2199995)
• +1-301-2199996 / 0111-301-2199996 (1301-2199996 / 1-301-2199996)
• +1-301-2199997 / 0111-301-2199997 (1301-2199997 / 1-301-2199997)
• +1-301-2199998 / 0111-301-2199998 (1301-2199998 / 1-301-2199998)
• +1-301-2199999 / 0111-301-2199999 (1301-2199999 / 1-301-2199999)