Area Code +65-3-(1580000...1589999) located in VoIP, more detail is as below. Place International Dialing Code : 65 International Prefix : 00 National Destination Code : 3 Subscriber Number From : 1580000 Subscriber Number To : 1589999 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 : Voxbone Singapore 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-(1570000...1579999) next › : +65-3-(1590000...1599999) Dialling Instructions For trunk calls: - 3 1580000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 65 3 1580000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 1580000 ~ 1589999 (Count: 10,000) Example: +65-3-1580000 / 0065-3-1580000 (3-1580000 / -3-1580000) +65-3-1580001 / 0065-3-1580001 (3-1580001 / -3-1580001) +65-3-1580002 / 0065-3-1580002 (3-1580002 / -3-1580002) +65-3-1580003 / 0065-3-1580003 (3-1580003 / -3-1580003) +65-3-1580004 / 0065-3-1580004 (3-1580004 / -3-1580004) ...+65-3-xxxxxxx / 0065-3-xxxxxxx (3-xxxxxxx / -3-xxxxxxx) ...+65-3-1589995 / 0065-3-1589995 (3-1589995 / -3-1589995) +65-3-1589996 / 0065-3-1589996 (3-1589996 / -3-1589996) +65-3-1589997 / 0065-3-1589997 (3-1589997 / -3-1589997) +65-3-1589998 / 0065-3-1589998 (3-1589998 / -3-1589998) +65-3-1589999 / 0065-3-1589999 (3-1589999 / -3-1589999)