IP telephony
Numbers starting with 3350
1 Singapore ip telephony number in this prefix appear on public websites.
About the 3350 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 3350 xxxx, internationally as +65 3350 xxxx, and as 8-digit 3350xxxx.