Area Code +65-3-(1550000...1559999) located in VoIP, more detail is as below. Place International Dialing Code : 65 International Prefix : 00 National Destination Code : 3 Subscriber Number From : 1550000 Subscriber Number To : 1559999 National Destination Code Length : 1 Uses National Destination Code : No National Significant Number Length : 8 Number Type : V (VoIP, Location Independent fixed land line) Carrier Name : M1 Limited Click here to buy Singapore Area Code Database Other Information Language Code : en (English) Country Number : 702 (Singapore) Country Code : SG (Singapore) City : VoIP Timezone : Asia/Singapore Coordinated Universal Time : +08:00 Daylight Saving Time : No National Significant Number Minimum Length : 8 Latitude : 1.3500 Longitude : 103.8200 ‹ previous : +65-3-(1540000...1549999) next › : +65-3-(1560000...1569999) Dialling Instructions For trunk calls: - 3 1550000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 65 3 1550000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 1550000 ~ 1559999 (Count: 10,000) Example: +65-3-1550000 / 0065-3-1550000 (3-1550000 / -3-1550000) +65-3-1550001 / 0065-3-1550001 (3-1550001 / -3-1550001) +65-3-1550002 / 0065-3-1550002 (3-1550002 / -3-1550002) +65-3-1550003 / 0065-3-1550003 (3-1550003 / -3-1550003) +65-3-1550004 / 0065-3-1550004 (3-1550004 / -3-1550004) ...+65-3-xxxxxxx / 0065-3-xxxxxxx (3-xxxxxxx / -3-xxxxxxx) ...+65-3-1559995 / 0065-3-1559995 (3-1559995 / -3-1559995) +65-3-1559996 / 0065-3-1559996 (3-1559996 / -3-1559996) +65-3-1559997 / 0065-3-1559997 (3-1559997 / -3-1559997) +65-3-1559998 / 0065-3-1559998 (3-1559998 / -3-1559998) +65-3-1559999 / 0065-3-1559999 (3-1559999 / -3-1559999)