Check a phone number's area code

What the number checker shows

Type a US or Canadian phone number and the checker reads what the digits themselves reveal. That means the area code, the region and main places it was assigned to, the time zone, the country, and a few notes when the number matches an unusual pattern. It runs on facts about the numbering plan, nothing more. I built it for the moment when a missed call from an unfamiliar code appears and you want to know whether it is local, far away or a special kind of number before you decide to do anything.

What it does not know

It does not know who owns the number. It does not know which carrier runs it, whether it is a cell, a landline or an internet line, and it has no reputation data, so it cannot say whether other people have complained about it. Those details sit in private carrier systems and commercial databases, and a free page that claims to display them is selling something. If you need to judge a caller, the best evidence is behavior: what they ask for and whether they let you verify them through an official channel.

How to read each field

• International form: the number written with +1 in front, the way phones and apps store it.
• Area code: the first three digits. This shows where the line was first set up.
• Exchange and line: the next three and last four digits. They matter mostly for spotting test patterns and service codes.
• Region and main places: the state or territory and the cities the code is known for.
• Time zone: useful before you return a call at a strange hour.
• Notes: short warnings for toll-free, premium-rate, Caribbean, repeated-digit or service-code patterns.

Common situations

If the code is 702 or 725, the number began in the Las Vegas area, and our Las Vegas guide lists who tends to call. If it is 775, the number began elsewhere in Nevada, as explained in the Reno and Carson City guide. If the code is toll-free, such as 800, 888, 877, 866, 855, 844 or 833, there is no home city at all, and anyone can rent such a line. A 900 number charges the caller by the minute. Some Caribbean codes look like US ones, which is how one-ring scams work: they hope you call back and pay international rates.

What to do next

If the call mattered, it will leave a voicemail. If the caller claims to be from a company, look the company up yourself and use the contact details on its own site. Do not call back the number that rang you to check it. If the call asked for money or codes, block it, and report it at reportfraud.ftc.gov. For spam texts, forward the message to 7726. On iPhone, Settings > Phone > Silence Unknown Callers will keep strangers from ringing, and on Android with Google Phone you will find Caller ID & spam under Phone > three dots > Settings.

Privacy of what you type

The number you enter is handled on our server to build the result and is not saved to a database. The web server's standard logs, though, keep a record of requests for about a week, including the address of the page with the number in it. The privacy page has the full detail. Please do not enter numbers belonging to someone you plan to harass or follow. The terms forbid it, and the tool would not help you anyway.