Fixed line
Numbers starting with 6991
8 Singapore fixed line numbers in this prefix appear on public websites.
About the 6991 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 6991 xxxx, internationally as +65 6991 xxxx, and as 8-digit 6991xxxx.
6991 numbers found on the web
+65 6991 3543
6991 3543 · 69913543 · Fixed line
Direct Asia Promo Codes October 2026 | $100 OFF & Membership Deals | Dealy SG on dealy.sg
1 web mention
+65 6991 3547
6991 3547 · 69913547 · Fixed line
Direct Asia Promo Codes October 2026 | $100 OFF & Membership Deals | Dealy SG on dealy.sg
1 web mention
+65 6991 3555
6991 3555 · 69913555 · Fixed line
Direct Asia Promo Codes October 2026 | $100 OFF & Membership Deals | Dealy SG on dealy.sg
1 web mention
+65 6991 3800
6991 3800 · 69913800 · Fixed line
Find Hotels with Nanny or Babysitting Services - Babysitters on baby.meide.sg
1 web mention
+65 6991 4463
6991 4463 · 69914463 · Fixed line
Gwuni Mopera - Boutique Hotel S$Â 62. Leipzig Hotel Deals & Reviews - KAYAK on kayak.sg
1 web mention
+65 6991 6875
6991 6875 · 69916875 · Fixed line
Mosella’s Sunday Long Lunch: A Delicious Celebration of Family and Togetherness - Must Share Good Things on msgt.com.sg
1 web mention
+65 6991 6888
6991 6888 · 69916888 · Fixed line
Best Budget Hotels in Singapore from S$Â 126 - KAYAK on kayak.sg
3 web mentions
+65 6991 6897
6991 6897 · 69916897 · Fixed line
The ultimate 24-hour guide to Singapore’s best beauty hot spots on vogue.sg
1 web mention