Fixed line
Numbers starting with 6690
36 Singapore fixed line numbers in this prefix appear on public websites.
About the 6690 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 6690 xxxx, internationally as +65 6690 xxxx, and as 8-digit 6690xxxx.
6690 numbers found on the web
+65 6690 0186
6690 0186 · 66900186 · Fixed line
Candle Mfrs' Equipment - Singapore Business Guide on sbg.sg
1 web mention
+65 6690 1961
6690 1961 · 66901961 · Fixed line
Our Members List - Association of Employment Agencies (Singapore) on aeas.org.sg
1 web mention
+65 6690 2388
6690 2388 · 66902388 · Fixed line
Club Locations - Best Gym in Singapore - TFX Singapore on tfx.sg
1 web mention
+65 6690 2471
6690 2471 · 66902471 · Fixed line
Dr Wu Yijun - Singapore Medical Group on smg.sg
1 web mention
+65 6690 2981
6690 2981 · 66902981 · Fixed line
Dr Joe Lee King Chien, Senior Consultant Urologist, AHS - Prime Magazine on prime.sg
1 web mention
+65 6690 3149
6690 3149 · 66903149 · Fixed line
Best Beauty Aesthetics Tips for Healthy, Radiant Skin | EPOS POS System on epos.com.sg
1 web mention
+65 6690 3168
6690 3168 · 66903168 · Fixed line
Spa Awards 2025: Best Medispa Facials In Singaporeclosearrow-circle-o-downtagsprintfacebook-squarefacebookenvelopelinkedinellipsis-vxingyoutube-playinstagrampaper-planefacebook-officialpinterest-pwhatsappcommentingx-twittertiktokmagnifiercrosschevron on elle.com.sg
1 web mention
+65 6690 3199
6690 3199 · 66903199 · Fixed line
Hotels in Orchard (Singapore) from S$Â 169/night - KAYAK on kayak.sg
2 web mentions
+65 6690 3255
6690 3255 · 66903255 · Fixed line
Shocking Signs That Your Body Needs an Orthopaedic Expert. Are You Ignoring Them? | EPOS POS System on epos.com.sg
1 web mention
+65 6690 3275
6690 3275 · 66903275 · Fixed line
7 Best Budget Web Design Companies In Singapore For 2026 | Webbo on webbo.sg
3 web mentions
+65 6690 4049
6690 4049 · 66904049 · Fixed line
Top 10 Digital Marketing Agencies in Singapore on dei.com.sg
1 web mention
+65 6690 4070
6690 4070 · 66904070 · Fixed line
Top 10 Electrical Safety Tips Every Singaporean Homeowner Must Know | EPOS POS System on epos.com.sg
1 web mention
+65 6690 4095
6690 4095 · 66904095 · Fixed line
6 Best Companies in SG For CCTV Cameras & Security Solutions | IT.com.sg Singapore on it.com.sg
1 web mention
+65 6690 4534
6690 4534 · 66904534 · Fixed line
Common Ear, Nose & Throat Problems and How to Prevent Them | EPOS POS System on epos.com.sg
1 web mention
+65 6690 4682
6690 4682 · 66904682 · Fixed line
5 Acne Scar Laser Treatments In Singapore From S$88 That Work—Including Before/After Pics - ZULA.sg on zula.sg
1 web mention
+65 6690 4688
6690 4688 · 66904688 · Fixed line
8 Best Plastic Surgery Clinics In Singapore on zula.sg
1 web mention
+65 6690 4939
6690 4939 · 66904939 · Fixed line
4 Best Retail POS System Providers In Singapore | IT.com.sg Singapore on it.com.sg
1 web mention
+65 6690 5420
6690 5420 · 66905420 · Fixed line
BOYS' Town (201534576H) — all.sg on all.sg
2 web mentions
+65 6690 5451
6690 5451 · 66905451 · Fixed line
Luxury Escapes Promo Codes October 2026 | S$298 OFF & Membership Deals | Dealy SG on dealy.sg
1 web mention
+65 6690 5555
6690 5555 · 66905555 · Fixed line
Programmes Required for Employers and Maids in Singapore | Help Is Here™ on hih.com.sg
1 web mention
+65 6690 6163
6690 6163 · 66906163 · Fixed line
Breast Augmentation Clinics In Singapore For A Desired Cup Size on zula.sg
1 web mention
+65 6690 7214
6690 7214 · 66907214 · Fixed line
Corporate Bank Account Opening in Singapore | EAPAC on eapac.com.sg
1 web mention
+65 6690 7561
6690 7561 · 66907561 · Fixed line
April 2019 | Lobang Guru Singapore on lobang.guru.sg
1 web mention
+65 6690 7564
6690 7564 · 66907564 · Fixed line
What to do this weekend in Singapore: 26-28 March on vogue.sg
1 web mention
+65 6690 7565
6690 7565 · 66907565 · Fixed line
10 First Date Cafes & Restaurants In Singapore on zula.sg
1 web mention
+65 6690 9262
6690 9262 · 66909262 · Fixed line
3E Accounting Holdings (201830920D) — all.sg on all.sg
3 web mentions
+65 6690 9307
6690 9307 · 66909307 · Fixed line
Hertz hire cars in Rome from S$Â 34/day - KAYAK on kayak.sg
1 web mention
+65 6690 9400
6690 9400 · 66909400 · Fixed line
Singapore Business Guide - Exhibitions in Singapore on sbg.sg
1 web mention
+65 6690 9401
6690 9401 · 66909401 · Fixed line
Car Rental in Rome from S$Â 10/day - Search for Rental Cars on KAYAK on kayak.sg
1 web mention
+65 6690 9456
6690 9456 · 66909456 · Fixed line
Car Rental in Rome from S$Â 10/day - Search for Rental Cars on KAYAK on kayak.sg
1 web mention
+65 6690 9599
6690 9599 · 66909599 · Fixed line
Courses Available and Applications | SAFRA on safra.sg
2 web mentions