289 Area Code
Covers Hamilton and nearby communities in Ontario.
(289) 555-0142Area code 289 map
Interactive coverage map for area code 289, centered on Hamilton, Ontario
43.2501, -79.8496
Open in OpenStreetMapArea code 289 coverage map — centered on Hamilton. Shaded area shows the approximate reach around the primary city.
289 is the area code for Hamilton and the surrounding part of Ontario. It covers communities such as Hamilton, Ajax, Ancaster, Brampton and more across Ontario. The region observes local time, so a number like (289) 555-0142 is on that clock right now. Neighboring area codes include 416, 437, 647. It shares its territory with the overlay codes 365, 705, which sit on the exact same map. Because the 289 region uses more than one area code, you must dial all ten digits — area code included — even for a local call. You do not, however, need to dial a leading 1 for calls within the US and Canada. Keep reading for the current local time in Hamilton, a map of the 289 coverage area, the places it reaches, nearby and overlay codes, and how to tell a real 289 call from a scam.
Cities covered by 289
Cities & neighborhoods
- Hamilton
- Ajax
- Ancaster
- Brampton
- Burlington
- Cobourg
- Fort Erie
- Keswick
- Markham
- Milton
- Newmarket
- Niagara Falls
- Oakville
- Oshawa
- Pickering
- Port Colborne
- Richmond Hill
- St. Catharines
- Uxbridge
- Welland
Looking for the broader picture? See all Ontario area codes.
Nearby & overlay area codes
Overlay codes (same area)
These share 289’s geography — a number in either code can be on the same street.
Neighboring codes
Codes for adjacent regions and metros.
Is a call from 289 a scam?
Area code 289 serves Hamilton and the surrounding area, so most calls are ordinary local and business traffic. As everywhere, spam and robocalls do use 289 numbers, frequently by spoofing a local-looking caller ID to boost pickup rates. The area code itself tells you nothing about who is really calling, so judge the call by what's said, not the number.
Red flags to watch for
- Pressure to act right now, or threats of arrest, fines, or service being cut off.
- Requests to pay with gift cards, wire transfer, crypto, or a payment app.
- Asking for passwords, one-time codes, your SSN, or full card/bank numbers.
- A robocall or recording, or a number that won’t let you call back.
When unsure, hang up and call the organization back on a number you look up yourself.
Calling a 289 number from abroad
Every 289 number is a US/Canada +1 number. From a mobile anywhere, the simplest approach is to dial it in international format:
+1 289 555-0142If your phone can’t dial the +, replace it with your country’s exit code, then 1, then the number:
- UK, Germany, France & most of Europe
00 1 289 555-0142 - Australia
0011 1 289 555-0142 - Japan
010 1 289 555-0142 - Mexico
00 1 289 555-0142
Within the US and Canada you don’t need any of this — just dial the ten digits 289 555-0142.
Reverse phone lookup
Check any US or Canada number to see whether it's a working line, which carrier it sits on, whether it's mobile, landline or VoIP, and roughly where it's registered.
Shows carrier, line type and location. Owner name isn't available here.
Results are for personal, informational use only and may not be used for employment, credit, housing or tenant-screening decisions.
Area code 289: frequently asked questions
Where is the 289 area code located?
The 289 area code is located in Ontario, centered on Hamilton. Communities in the 289 area include Hamilton, Ajax, Ancaster, Brampton, Burlington, Cobourg.
What time zone is 289 in?
Area code 289 is in the local time zone (UTC-5 (EST) / UTC-4 (EDT)). You can see the exact current local time for Hamilton on the live clock above.
What cities use area code 289?
Cities and areas that use 289 include Hamilton, Ajax, Ancaster, Brampton, Burlington, Cobourg. Its primary city is Hamilton, ON.
Do I need to dial 1 before 289?
For calls within the US, you do not need to dial a leading 1, but you do need all ten digits: 289 plus the seven-digit number. The 289 area requires ten-digit dialing because more than one area code serves it.
Is 289 a toll-free or scam number?
No — 289 is a normal geographic area code for Hamilton, not a toll-free code (toll-free codes are 800, 833, 844, 855, 866, 877 and 888). A 289 number is not inherently a scam, but the code can be spoofed. See the spam-call section above for how to tell.
What are the overlay area codes for 289?
Area code 289 is overlaid by 365, 705, meaning those codes cover the same geographic area.