Fixed line
Numbers starting with 6603
10 Singapore fixed line numbers in this prefix appear on public websites.
About the 6603 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 6603 xxxx, internationally as +65 6603 xxxx, and as 8-digit 6603xxxx.
6603 numbers found on the web
+65 6603 1469
6603 1469 · 66031469 · Fixed line
7 enchanting beauty brands to shop at Raffles City on vogue.sg
1 web mention
+65 6603 5555
6603 5555 · 66035555 · Fixed line
奖助学金 – Singapore Federation of Chinese Clan Associations on sfcca.sg
1 web mention
+65 6603 5599
6603 5599 · 66035599 · Fixed line
资助金 – Singapore Federation of Chinese Clan Associations on sfcca.sg
1 web mention
+65 6603 6128
6603 6128 · 66036128 · Fixed line
IDAC Centres - Car Accident Reporting Centre Singapore - BRZE on brze.sg
1 web mention
+65 6603 6603
6603 6603 · 66036603 · Fixed line
Course: Executive Introduction to MRO | Singapore Institute of Aerospace Engineers on siae.org.sg
1 web mention
+65 6603 6800
6603 6800 · 66036800 · Fixed line
Useful Links & Contacts - Bishan-Toa Payoh Town CouncilBishan-Toa Payoh Town Council on btptc.org.sg
3 web mentions
+65 6603 8855
6603 8855 · 66038855 · Fixed line
April 2019 | Lobang Guru Singapore on lobang.guru.sg
2 web mentions
+65 6603 8888
6603 8888 · 66038888 · Fixed line
Hotels in Orchard (Singapore) from S$Â 169/night - KAYAK on kayak.sg
4 web mentions
+65 6603 9200
6603 9200 · 66039200 · Fixed line
New Regulatory Requirement for Jewellers on jdmis.edu.sg
1 web mention