Area Code +856-20-(77000000...77999999) located in Mobile services, more detail is as below. Place International Dialing Code : 856 International Prefix : 00 National Prefix : 0 National Destination Code : 20 Subscriber Number From : 77000000 Subscriber Number To : 77999999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : MLL Click here to buy Laos Area Code Database Other Information Language Code : lo (Laothian) Country Number : 418 (Laos) Country Code : LA (Laos) City : Mobile services Timezone : Asia/Vientiane Coordinated Universal Time : +07:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 17.9600 Longitude : 102.6100 ‹ previous : +856-20-(56000000...56999999) next › : +856-20-(98000000...98999999) Dialling Instructions For trunk calls: 0 20 77000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 856 20 77000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 77000000 ~ 77999999 (Count: 1,000,000) Example: +856-20-77000000 / 00856-20-77000000 (020-77000000 / 0-20-77000000) +856-20-77000001 / 00856-20-77000001 (020-77000001 / 0-20-77000001) +856-20-77000002 / 00856-20-77000002 (020-77000002 / 0-20-77000002) +856-20-77000003 / 00856-20-77000003 (020-77000003 / 0-20-77000003) +856-20-77000004 / 00856-20-77000004 (020-77000004 / 0-20-77000004) ...+856-20-xxxxxxxx / 00856-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+856-20-77999995 / 00856-20-77999995 (020-77999995 / 0-20-77999995) +856-20-77999996 / 00856-20-77999996 (020-77999996 / 0-20-77999996) +856-20-77999997 / 00856-20-77999997 (020-77999997 / 0-20-77999997) +856-20-77999998 / 00856-20-77999998 (020-77999998 / 0-20-77999998) +856-20-77999999 / 00856-20-77999999 (020-77999999 / 0-20-77999999)