Fixed line
Numbers starting with 6663
2 Singapore fixed line numbers in this prefix appear on public websites.
About the 6663 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 6663 xxxx, internationally as +65 6663 xxxx, and as 8-digit 6663xxxx.
6663 numbers found on the web
+65 6663 3933
6663 3933 · 66633933 · Fixed line
The best prenatal facials and massages in Singapore for mamas-to-be on vogue.sg
1 web mention
+65 6663 9882
6663 9882 · 66639882 · Fixed line
Amlab - We Test, You Trust. on amlab.com.sg
1 web mention