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A community project by retroXpect

How we check our numbers

Where every number comes from, how we check it, and what we can't know.

Where the numbers come from

Every phone number, email, address and opening time comes from the organisation's own website, or from official data the government publishes. We note which page and when we read it. We don't copy numbers from other lists. When a town council's page showed an agency's number that the agency itself no longer shows, we used the agency's own page.

What "checked" means

  • Checked on the date shown: we read the official page that day.
  • Checked word for word: that exact number or address is printed on the page.
  • Link works: our automatic test could open the page. A working link doesn't prove the number is still right.
  • Being looked at again: someone told us it's wrong, the page changed, or we couldn't confirm it.

If we haven't re-checked something for six months, we remind you to confirm it on the official page. Old details stay on the page with their official link instead of disappearing, so you can still check them yourself.

How we find your town council

  1. OneMap, the government's map service, gives us the address.
  2. HDB's list of blocks tells us whether it's an HDB block. We tested this on 150 blocks across Singapore: 148 matched exactly, none matched the wrong block, and 2 weren't found on OneMap.
  3. The Elections Department's 2025 map tells us the constituency.
  4. The government's list of town councils (2025) tells us which of the 19 town councils covers that constituency. CDC Singapore's list tells us the CDC.

If a block is within 60 metres of the edge of another constituency, we tell you, because official maps aren't precise to the metre. We never decide who is in charge from distance, postal codes or estate names.

Opening hours

An office and its phone line can keep different hours, so we show them separately. We only say "open now" when the hours are regular, we know whether today is a public holiday, and nothing unusual has been announced. Otherwise we show the hours as the organisation writes them.

Keeping it up to date

Every change is checked before it goes live, and logged. A regular automatic check re-reads the official pages, flags anything that has changed, and tests every link. When you tell us something is wrong, a person checks the official page before anything changes.

What we don't do

  • We don't use AI to decide who is in charge, to find phone numbers or to decide who qualifies for help.
  • We don't publish changes from the public without checking them.
  • We don't make reports or contact anyone for you.

See what we cover, and what we don't have yet.

Using other people's data

Government open data is used under the Singapore Open Data Licence. Address search and the map come from OneMap, under its terms, and are credited on every page. We link to every official page we use, and we restate the facts (numbers, hours, addresses) instead of copying their text.

Every page we use (96)