Fixed line
Numbers starting with 6401
2 Singapore fixed line numbers in this prefix appear on public websites.
About the 6401 prefix
This looks like a Singapore fixed-line number. Reports often mention company switchboards, delivery callbacks, property agents, or unsolicited sales calls.
6-prefix numbers are commonly used for Singapore fixed-line services. Numbers in this list are written locally as 6401 xxxx, internationally as +65 6401 xxxx, and as 8-digit 6401xxxx.
6401 numbers found on the web
+65 6401 6338
6401 6338 · 64016338 · Fixed line
Marble - Singapore Business Guide on sbg.sg
1 web mention
+65 6401 9201
6401 9201 · 64019201 · Fixed line
4 Tips For The Right Health Insurance | ANZA on anza.org.sg
1 web mention