Area codes › Ontario › 365

Canada Area code 365 - Mississauga, ON

Area code 365 is a North American Numbering Plan telephone area code serving Area codes in southern Ontario, Canada in Ontario. It was activated in 1993 and today covers roughly 764,597 residents across 1 cities and towns, primarily in Northumberland County .

Sources: CRTC, Wikipedia, and community-submitted reports · Updated
Reverse phone lookup

Who’s Texting & Calling? Enter a Number

See the owner’s name, carrier, location, and any scam reports in seconds. (May reveal social media profiles, online footprints, pics and more.)

+1

100% confidential lookup - the person you search will not know.

Local time in 365 ?
-
Population served ?
0.8M
Overlay code ?
905, 289, 742
Time zone ?
Eastern (ET)
Activated ?
1993

Who called me from area code 365?

A call from area code 365 most likely originates from Mississauga or elsewhere in Ontario - but caller ID spoofing means the area code alone cannot confirm who called. The only reliable way to identify the caller is to check the full 10-digit number:

  1. Run the number through the reverse phone lookup at the top of this page to see the owner's name, carrier, and location.
  2. Compare it against the recently reported scam numbers in 365 below.
  3. If the call was unwanted, report it to the Canadian Anti-Fraud Centre and use the report form on this page so other 365 residents see it.
Report a scam call from 365 Help other 365-area residents - takes 20 seconds, no signup

Reports are reviewed by our team before appearing on the page. The highest-reported numbers get added to the “Recently reported scam numbers” list above with a “community” badge.

Only the number, category, and description are stored. IP addresses are one-way hashed for rate-limiting and never stored raw. Reports are moderated before publication. Links are not allowed in descriptions.

Should I answer a call from a 365 number? Take the 30-second quiz - 5 questions, verdict + advice

Runs entirely in your browser - nothing is sent or stored.

1. Were you expecting a call today?
2. Do you recognise the specific number (not just the area code)?
3. Have you searched the number online yet?
4. Is it during normal business hours in 365?
5. Are you actively waiting on a business decision (delivery, loan, job, etc.)?

Where is the 365 area code? Coverage map

The pin marks Mississauga, the largest city served by area code 365. Zoom and pan to explore the coverage region.

Interactive map. Click a pin for city details. Data © OpenStreetMap contributors.

Area codes near 365 (overlay + neighboring)

If a caller ID shows one of these codes, the call is probably still from the Mississauga area or a nearby region. Click any code to see its own page.

Same geography as 365 (overlay codes)

These codes cover the exact same area as 365. A number starting with 905 could literally be your neighbor - overlay codes get assigned when 365's numbers run out.

Neighboring regions (codes next door)

These codes cover regions adjacent to 365. Common for calls from nearby cities and across county lines.

Reporting unwanted and scam calls from 365 numbers

Canada does not publish per-area-code complaint counts the way the US FCC does. Instead, unwanted and fraudulent 365 calls are handled by these national bodies, and reporting a number helps regulators act on it:

  • Unwanted telemarketing: file a complaint with the National Do Not Call List (DNCL) or call 1-866-580-3625. Registering your own number on the DNCL also reduces legal telemarketing.
  • Scam or fraud calls: report to the Canadian Anti-Fraud Centre (run by the RCMP, OPP and Competition Bureau) at 1-888-495-8501.
  • Spoofed caller ID: Canadian carriers use STIR/SHAKEN caller-ID authentication under CRTC direction, so a spoofed 365 number may show up as unverified on newer phones.

Sources: CRTC, National DNCL, and the Canadian Anti-Fraud Centre.

Recently reported scam numbers in 365

No reports for 365 yet. Be the first - use the “Report a scam call” form below to flag a number you've received. Approved reports appear here alongside FCC-recorded complaints.

How to block 365 spam calls (by carrier)

Getting repeated spam calls from 365 numbers around Mississauga, Ontario? You can't legitimately block every 365 call without also missing legitimate ones from Mississauga, Ontario - so the practical fix is to turn on your carrier's free spam filter and register on the national do-not-call list. Step-by-step for each major US carrier below.

AT&T

  1. Download the free AT&T ActiveArmor app (iOS + Android).
  2. Sign in with your wireless number.
  3. Enable Fraud Blocking and Suspected Spam Warning.
  4. To block a specific number, tap the call in your history → Block.

Verizon

  1. Download the free Verizon Call Filter app (iOS + Android).
  2. Sign in with your Verizon account.
  3. Turn on Spam Filter.
  4. To block a specific number: My Verizon → Blocks → Add Number.

T-Mobile

  1. Download the free Scam Shield app (iOS + Android).
  2. Enable Scam Block (blocks known scam calls silently).
  3. Use Scam ID to see “Scam Likely” caller ID on suspicious numbers.
  4. To block a specific number, dial #662# from your device.

All carriers

  1. Register on the FTC's National Do-Not-Call list.
  2. Report unwanted calls to the FCC at fcc.gov/complaints.
  3. On iPhone: Settings → Phone → Silence Unknown Callers.
  4. On Android: Phone app → ⋮ → Settings → Caller ID & spam.

Sources: carrier support pages (AT&T, Verizon, T-Mobile), FCC consumer guides. Free features as of 2026. Every one of these steps costs nothing.

History of the 365 area code

Area codes 905, 289, 365, and 742 are telephone area codes in the North American Numbering Plan (NANP) for the Golden Horseshoe region that surrounds Lake Ontario in Southern Ontario, Canada. The numbering plan area (NPA) comprises (clockwise) the Niagara Peninsula, the city of Hamilton, the regional municipalities of Halton, Peel, York, Durham, and parts of Northumberland County, but excludes the City of Toronto.

365 area code FAQ: common questions

What area code is 365?

Area code 365 is a North American Numbering Plan area code that serves Area codes in southern Ontario, Canada in Ontario, primarily including Mississauga and surrounding communities. It was activated in 1993.

Where does area code 365 cover?

Area code 365 covers Northumberland County, including cities such as Mississauga.

Is 365 a real area code or a scam?

365 is a real, actively-assigned US area code - not itself a scam. However, spammers do use 365 numbers because the code is well-known and appears local to millions of residents. Always verify the specific number, not the area code.

How do I block 365 spam calls?

You cannot legitimately block an entire area code without also blocking legitimate calls from Mississauga. Better options: register on the National Do-Not-Call list, enable your carrier's spam-filter (all major US carriers now offer this free), and report unwanted calls to the FCC at fcc.gov/complaints so they show up in the trend data on this page.

What's the overlay area code for 365?

365 shares coverage with overlay codes 905, 289, 742. That means new phone numbers issued in the same geographic area may have either area code, and 10-digit dialing is required.

Sources

Look up a 365 number now

Or explore reverse-phone lookup for any US number.