Fixed line
Numbers starting with 6650
7 Singapore fixed line numbers in this prefix appear on public websites.
About the 6650 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 6650 xxxx, internationally as +65 6650 xxxx, and as 8-digit 6650xxxx.
6650 numbers found on the web
+65 6650 1544
6650 1544 · 66501544 · Fixed line
25 Alternative Engagement Rings Which Aren't Diamonds From Singaporean Jewellery Designers - ZULA.sg on zula.sg
1 web mention
+65 6650 3163
6650 3163 · 66503163 · Fixed line
Psychotherapy | Counselling | Healing | Mind Your Life Pte Ltd on myl.sg
1 web mention
+65 6650 4713
6650 4713 · 66504713 · Fixed line
Hostel Inn Calafate S$Â 65. El Calafate Hotel Deals & Reviews - KAYAK on kayak.sg
1 web mention
+65 6650 7299
6650 7299 · 66507299 · Fixed line
MBI Wellness 心身互动养生 | fit.sg on fit.sg
1 web mention
+65 6650 8092
6650 8092 · 66508092 · Fixed line
🎁 30 Best Hampers in Singapore for Every Occasion (2025): The Ultimate Gifting GuideInstagramFacebook on carl.sg
1 web mention
+65 6650 8750
6650 8750 · 66508750 · Fixed line
IT Consulting & Services | Mako Networks| Internet Security | VPN's | on itcs.sg
1 web mention
+65 6650 9400
6650 9400 · 66509400 · Fixed line
日本語でシンガポール法人設立｜シンガポール情報局＆総合秘書サポートの「ROMIS (ロミス)」 on romis.com.sg
1 web mention