IP telephony
Numbers starting with 3904
1 Singapore ip telephony number in this prefix appear on public websites.
About the 3904 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 3904 xxxx, internationally as +65 3904 xxxx, and as 8-digit 3904xxxx.
3904 numbers found on the web
+65 3904 3800
3904 3800 · 39043800 · IP telephony
My ideas - an Ideabook by Mark Brown on houzz.com.sg
1 web mention