Who called me? Check a phone number for free

Type in the unknown number and find out who called — telemarketing, a scam, or a call worth returning.

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For example: 0412 345 678 or +61 2 1234 5678

Had a nuisance call? Add a report →

News and articles

All articles →

How it works

Three simple steps to find out who was trying to reach you.

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Look up the number

Enter the number that called you. Works with spaces and with the +61 prefix.

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Read the reports

Comments, community verdicts and an overall safety rating.

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Add your own

Anonymous, quick, no sign-up. Help others the way they helped you.

Something extra

A community rating, not a random thumbs-up

Every report on a number carries one of five colour-coded verdicts — from useful through nuisance to dangerous. We combine them into an overall verdict, so you know at a glance whether to call back or block the number.

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    Five verdicts — Useful, Safe, Neutral, Nuisance, Dangerous.
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    Overall verdict — calculated from community votes, so you instantly see whether to pick up.
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    Number facts — area code, network, type (mobile / landline / 1800 / 13 / 1300…) based on the Australian numbering plan.

Encyclopedia and glossary

So far we have 35 glossary entries, 30 detailed scam guides and 25 answers to common questions.

Glossary 35

All glossary entries →
VoIP (internet calling) Calls carried over the internet instead of a traditional phone line, used by mos… Number portability (PAC code) Your right to keep your phone number when you change provider, and the reason a … MVNO (virtual network operator) A mobile brand that sells service over another company’s network instead of runn… Remote access software Legitimate tools such as AnyDesk or TeamViewer that let someone control your scr… Telemarketing rules (PECR) The UK rules on sales calls: who may ring you, when consent is needed and which … 084 and 087 service numbers Business and service numbers charged as an access charge plus a service charge, … Telephone Preference Service (TPS) The UK’s free opt-out register; once your number is on it, companies must not ri… 159 (Stop Scams UK) A short number that connects you straight through to your own bank’s fraud line,…

Scam encyclopedia 30

All scams →
“Sorry, wrong number” texts and pig-butchering A friendly text meant for someone else turns into a chat, then a friendship, the… Council tax rebate and band review scams A text or call says your council owes you a refund, or that your property is in … “Your account is on hold” texts and emails A message says your PayPal, Netflix or Apple account has been suspended because … “You were in an accident that wasn’t your fault” A caller or recorded message says their records show you had a car accident and … HMRC tax rebate and “arrest warrant” scams Texts promising a tax refund and automated calls threatening arrest for unpaid t… Premium-rate text subscriptions and how to stop them Charges for texts you never asked for appear on your mobile bill: a quiz, a comp…

Questions and answers 25

All questions →

Quick links

Area code 02New South Wales and ACT Area code 03Victoria and Tasmania Area code 07Queensland Area code 08SA, WA and NT NetworksTelstra, Optus, Vodafone and others All area codesLandline codes and mobile prefixes Dangerous numbersNumbers reported as scams Top numbersMost reported Emergency numbersTriple Zero (000) and 112
865 numbers on record
0 community reports
0 new reports today
0 flagged as dangerous
Help others

Had a nuisance call? Warn the next person.

Your report saves a minute for someone else who will google the same number. It takes 30 seconds, it is anonymous and needs no account.

Add a report

Which number called you?

Opens the number’s page, where you can add your report straight away.

Frequently asked questions

How does cislo.info work?

People come here to look up numbers that called them. Every number has community reports and verdicts plus facts based on the Australian numbering plan. If you have your own experience with a number, add it — you are helping the next person.

Is it free?

Yes. Searching and adding reports is completely free and needs no sign-up.

What do the colour-coded verdicts mean?

For each report you pick one of five verdicts: Useful (green), Safe (blue), Neutral (grey), Nuisance (orange), Dangerous (red). They add up to an overall safety score.

How do you know which network a number belongs to?

From open numbering data based on the Australian numbering plan, which is made and administered by the Australian Communications and Media Authority (ACMA). We show the provider the number range was originally allocated to — the number may since have been ported to another provider.

Which Australian numbers cost extra to call?

1800 numbers are free to call from a landline, and from a mobile they are generally free as well, although some providers charge for them. 13 and 1300 local-rate numbers cost no more than a local call from a landline; from a mobile the charge depends on your plan — some plans include them, others bill them separately, so check your plan’s Critical Information Summary. Numbers starting with 19 used to be premium rate, but Australia’s current numbering plan, the Telecommunications Numbering Plan 2025, no longer includes premium-rate numbers.

Can I report a false comment?

Yes. Every report has a Flag button. Flagged reports are checked by an administrator, who can hide or delete them.