IP telephony
Numbers starting with 3999
3 Singapore ip telephony numbers in this prefix appear on public websites.
About the 3999 prefix
This number uses Singapore's 3-prefix IP telephony range. Community comments often help clarify whether it belongs to a business line, VoIP service, or a suspicious caller.
3-prefix numbers are typically used for IP telephony services in Singapore. Numbers in this list are written locally as 3999 xxxx, internationally as +65 3999 xxxx, and as 8-digit 3999xxxx.
3999 numbers found on the web
+65 3999 4877
3999 4877 · 39994877 · IP telephony
Denays House Jimbaran S$Â 22. South Kuta Hotel Deals & Reviews - KAYAK on kayak.sg
1 web mention
+65 3999 7000
3999 7000 · 39997000 · IP telephony
Water Closet | Product categories | AzoraWater Closet – Page 6 – Azora on azora.com.sg
1 web mention
+65 3999 7168
3999 7168 · 39997168 · IP telephony
Car rental at Fukuoka airport from S$Â 22/day - KAYAK on kayak.sg
1 web mention