IP telephony
Numbers starting with 3421
3 Singapore ip telephony numbers in this prefix appear on public websites.
About the 3421 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 3421 xxxx, internationally as +65 3421 xxxx, and as 8-digit 3421xxxx.
3421 numbers found on the web
+65 3421 3740
3421 3740 · 34213740 · IP telephony
Car Hire in Guanhães - Search for Rental Cars on KAYAK on kayak.sg
1 web mention
+65 3421 3900
3421 3900 · 34213900 · IP telephony
Car Hire in Guanhães - Search for Rental Cars on KAYAK on kayak.sg
1 web mention
+65 3421 7279
3421 7279 · 34217279 · IP telephony
Car Hire in Pouso Alegre - Search for Rental Cars on KAYAK on kayak.sg
1 web mention