Area code

Area code 1 phone prefixes

This is not a single phone number detail page. It groups prefix ranges linked to area code 1 and points users to the relevant prefix detail pages.

Area code: 1 Active prefixes: 2,000 Last update: 2026-06-29
Area code 1 +65
Country Singapore Singapore
Active prefixes 2,000 Prefix ranges linked to this area code
Phone prefix quality guide

How to use this list

This page groups active phone prefixes by country and line type. It helps users understand the expected number format before opening a specific prefix or checking a complete number.

Choose a prefix from the list, then complete the remaining digits on the prefix detail page to search, report or review a full phone number.

Area code 1 Singapore
Country code +65 Country
Number format +65 8123 4567 #### ####
Active prefixes 2,000 Prefix ranges linked to this area code
Safety guidance

A prefix alone is not proof that a call is safe or unsafe. If a caller asks for money, passwords, card details or urgent verification, check the complete number before taking action.

Prefix list FAQ

What does this list show?

It shows active prefixes for the selected country and line type, with example ranges and links to prefix detail pages.

Why are some prefixes less detailed?

Some ranges have no community comments yet. Technical prefix, type and format information still help users check a full number correctly.

How do I check a full number?

Open a prefix detail page or use the site search, then enter the complete phone number for comments, complaints and risk signals.

Area code 1

Area code intelligence

Use this section to see line types, expected number format and how to verify a full number without running extra live queries.

Which line types use this code?

These labels are calculated from the active prefix ranges already loaded for this area code.

toll-free 100 visible ranges

Number format

Use the national example with the country calling code to avoid mixing this area code with another country.

Example
18000000
Country code
+65 18000000
Pattern
#### ####
Phone safety center

More phone intelligence for this country

Continue with country-level data for Singapore: reports, spam trends, search activity and prefix statistics.

Popular Most searched numbers in Singapore See which phone numbers are being checked most often and open their detail pages. Reports Most reported phone numbers in Singapore Review numbers with the highest complaint activity and risk signals. Alerts Spam call alerts in Singapore Track fast-rising complaint and comment activity from the last days. Prefixes Top phone prefixes in Singapore Discover active phone prefixes and connect to their range pages. Statistics Phone directory statistics in Singapore Open the country dashboard with total ranges, comments, complaints and searches. Lookup Phone number lookup in Singapore Search a complete number to review comments, complaints and spam signals. Who called me Unknown caller lookup in Singapore Use this path when an unknown number contacted you. Validator Phone validator in Singapore Check whether the format and expected length match the country. Complaints Phone complaints in Singapore Read structured community complaint cases for this country. Premium report Premium number analysis in Singapore Run a deeper technical and risk report for a complete phone number.

Prefix ranges linked to this area code

Area code: 1
Active prefixes: 2,000
1800000 toll-free 18000000 18000009 Detail 1800001 toll-free 18000010 18000019 Detail 1800002 toll-free 18000020 18000029 Detail 1800003 toll-free 18000030 18000039 Detail 1800004 toll-free 18000040 18000049 Detail 1800005 toll-free 18000050 18000059 Detail 1800006 toll-free 18000060 18000069 Detail 1800007 toll-free 18000070 18000079 Detail 1800008 toll-free 18000080 18000089 Detail 1800009 toll-free 18000090 18000099 Detail 1800010 toll-free 18000100 18000109 Detail 1800011 toll-free 18000110 18000119 Detail 1800012 toll-free 18000120 18000129 Detail 1800013 toll-free 18000130 18000139 Detail 1800014 toll-free 18000140 18000149 Detail 1800015 toll-free 18000150 18000159 Detail 1800016 toll-free 18000160 18000169 Detail 1800017 toll-free 18000170 18000179 Detail 1800018 toll-free 18000180 18000189 Detail 1800019 toll-free 18000190 18000199 Detail 1800020 toll-free 18000200 18000209 Detail 1800021 toll-free 18000210 18000219 Detail 1800022 toll-free 18000220 18000229 Detail 1800023 toll-free 18000230 18000239 Detail 1800024 toll-free 18000240 18000249 Detail 1800025 toll-free 18000250 18000259 Detail 1800026 toll-free 18000260 18000269 Detail 1800027 toll-free 18000270 18000279 Detail 1800028 toll-free 18000280 18000289 Detail 1800029 toll-free 18000290 18000299 Detail 1800030 toll-free 18000300 18000309 Detail 1800031 toll-free 18000310 18000319 Detail 1800032 toll-free 18000320 18000329 Detail 1800033 toll-free 18000330 18000339 Detail 1800034 toll-free 18000340 18000349 Detail 1800035 toll-free 18000350 18000359 Detail 1800036 toll-free 18000360 18000369 Detail 1800037 toll-free 18000370 18000379 Detail 1800038 toll-free 18000380 18000389 Detail 1800039 toll-free 18000390 18000399 Detail 1800040 toll-free 18000400 18000409 Detail 1800041 toll-free 18000410 18000419 Detail 1800042 toll-free 18000420 18000429 Detail 1800043 toll-free 18000430 18000439 Detail 1800044 toll-free 18000440 18000449 Detail 1800045 toll-free 18000450 18000459 Detail 1800046 toll-free 18000460 18000469 Detail 1800047 toll-free 18000470 18000479 Detail 1800048 toll-free 18000480 18000489 Detail 1800049 toll-free 18000490 18000499 Detail 1800050 toll-free 18000500 18000509 Detail 1800051 toll-free 18000510 18000519 Detail 1800052 toll-free 18000520 18000529 Detail 1800053 toll-free 18000530 18000539 Detail 1800054 toll-free 18000540 18000549 Detail 1800055 toll-free 18000550 18000559 Detail 1800056 toll-free 18000560 18000569 Detail 1800057 toll-free 18000570 18000579 Detail 1800058 toll-free 18000580 18000589 Detail 1800059 toll-free 18000590 18000599 Detail 1800060 toll-free 18000600 18000609 Detail 1800061 toll-free 18000610 18000619 Detail 1800062 toll-free 18000620 18000629 Detail 1800063 toll-free 18000630 18000639 Detail 1800064 toll-free 18000640 18000649 Detail 1800065 toll-free 18000650 18000659 Detail 1800066 toll-free 18000660 18000669 Detail 1800067 toll-free 18000670 18000679 Detail 1800068 toll-free 18000680 18000689 Detail 1800069 toll-free 18000690 18000699 Detail 1800070 toll-free 18000700 18000709 Detail 1800071 toll-free 18000710 18000719 Detail 1800072 toll-free 18000720 18000729 Detail 1800073 toll-free 18000730 18000739 Detail 1800074 toll-free 18000740 18000749 Detail 1800075 toll-free 18000750 18000759 Detail 1800076 toll-free 18000760 18000769 Detail 1800077 toll-free 18000770 18000779 Detail 1800078 toll-free 18000780 18000789 Detail 1800079 toll-free 18000790 18000799 Detail 1800080 toll-free 18000800 18000809 Detail 1800081 toll-free 18000810 18000819 Detail 1800082 toll-free 18000820 18000829 Detail 1800083 toll-free 18000830 18000839 Detail 1800084 toll-free 18000840 18000849 Detail 1800085 toll-free 18000850 18000859 Detail 1800086 toll-free 18000860 18000869 Detail 1800087 toll-free 18000870 18000879 Detail 1800088 toll-free 18000880 18000889 Detail 1800089 toll-free 18000890 18000899 Detail 1800090 toll-free 18000900 18000909 Detail 1800091 toll-free 18000910 18000919 Detail 1800092 toll-free 18000920 18000929 Detail 1800093 toll-free 18000930 18000939 Detail 1800094 toll-free 18000940 18000949 Detail 1800095 toll-free 18000950 18000959 Detail 1800096 toll-free 18000960 18000969 Detail 1800097 toll-free 18000970 18000979 Detail 1800098 toll-free 18000980 18000989 Detail 1800099 toll-free 18000990 18000999 Detail