What is the 519 Area Code? Time Zone and Location
- Area code 519 serves southwestern Ontario, Canada, including London, ON. It has three overlays (226, 382, and 548) that serve the same area.
- The population within the 519 area code region is over 2.5 million residents, covering cities like London, Windsor, Kitchener-Waterloo, Guelph, and Sarnia.
- Major cities covered include London, Windsor, Kitchener, Waterloo, Cambridge, Guelph, Sarnia, Stratford, Owen Sound, Woodstock, St. Thomas, Brantford, Chatham, and Tillsonburg.
- The 519 area code is located in southwestern Ontario, Canada, falling within the Eastern Time Zone — UTC-5 during standard time and UTC-4 during daylight saving time.
- Area code 519 was put into service in 1953 and was the 91st area code in service — it was created as a split from the 416 area code to accommodate growing demand in southwestern Ontario.
- In 2006, area code 226 was created as the first overlay to 519, with area code 548 added subsequently, and area code 382 added most recently on June 17, 2023, as the third overlay to handle continued population growth.
- 10-digit dialing mandatory for all local calls within the 519/226/548/382 overlay complex.
519 Area Code Quick Facts
| Area Code | 519 |
|---|---|
| Country | Canada |
| Province / Region | Ontario (southwestern Ontario) |
| Area Code Type | Overlay area code (shares region with other codes) |
| Overlay Codes | 226, 548, 382 |
| Major Cities Covered | London, Windsor, Kitchener, Waterloo, Cambridge, Guelph, Sarnia, Stratford, Owen Sound, Woodstock, St. Thomas, Brantford, Chatham, Tillsonburg, Simcoe, Ingersoll, Hanover, Collingwood |
| Primary City Association | London, Ontario |
| Geographic Coverage | 315 cities across southwestern Ontario, spanning from the US border at Windsor and the Detroit River in the southwest through the agricultural heartland to the Georgian Bay region in the north |
| Time Zone | Eastern Time Zone (ET) |
| Standard Time Offset | UTC -5 hours |
| Daylight Saving Time | UTC -4 hours (EDT) |
| DST Period (2026 Example) | March to November |
| Introduced / Activation Date | November 1, 1953 — created as a split from area code 416 |
| Reason for Creation | Introduced in 1953 from portions of area codes 416 and 613 to accommodate southwestern Ontario's growing population and telecom demand, in 1957, parts of 519 and 613 also formed area code 705 |
| Dialing Requirement | 10-digit dialing mandatory (due to 519/226/548/382 overlay complex) |
| Coverage Nature | Overlay complex — 519, 226, 548, and 382 all share the same southwestern Ontario geography |
| Population Coverage | Serves a population of 2,796,367 across southwestern Ontario as of 2021, with continued growth driven by the Kitchener-Waterloo tech corridor and London's expanding healthcare and education sectors |
| Nearby / Related Area Codes | 226/382/548 (519 overlays), 249/683/705 (Sudbury, ON), 289/365/742/905 (Hamilton/GTA), 313/679 (Detroit, MI), 416/437/647/942 (Toronto), 734/679 (Ann Arbor, MI) |
| Telecom System | North American Numbering Plan (NANP) / CRTC |
| Major Carriers | Bell Canada, Rogers Communications, Telus, Freedom Mobile, and Eastlink are the primary carriers operating in the 519 region |
| Example Phone Format | (519) XXX-XXXX |
| International Dialing | +1-519-XXX-XXXX from outside Canada/NANP |
| Usage Type | Mobile, landline, VoIP numbers |
| Business Use | Essential for local presence across southwestern Ontario — one of Canada's most industrially and technologically significant regions, anchored by automotive manufacturing in Windsor and the "Silicon Valley North" innovation hub in Kitchener-Waterloo |
| Number Availability | Currently uses 779 prefixes, assigned from 519-200-XXXX through 519-999-XXXX |
| Area Code Status | Active and widely used |
| Notable Distinction | Windsor sits just across the Detroit River from Detroit, serving as a vital link in the busiest international border crossing in North America — a critical artery for the Canada-US automotive supply chain — while Kitchener-Waterloo hosts one of the world's most celebrated technology hubs, originally home to BlackBerry and now hundreds of high-growth startups |
Is the 519 Area Code a Scam?
| Spam Ranking | Ranked #354 for spam complaints nationally, accounting for approximately 0.016% of all spam complaints — among the lower complaint volumes among Canadian area codes |
|---|---|
| Most Common Scam Type | Prize/winnings notifications make up 25% of complaints — the dominant category — followed by Amazon impersonation (6.25%), computer virus alerts (6.25%), fake legal actions (6.25%), and auto warranty calls (6.25%) |
| Windsor Spam Distinction | Windsor tops all Canadian cities for daily spam contacts at 6.8 per day — ahead of Edmonton (6.5) and Toronto (6.3) — making the Windsor-area communities within the 519 code among the most spam-targeted in all of Canada |
| Common Labels | CRA impersonator, fake Amazon alert, tech support scammer, timeshare pressure caller, prize winner fraudster, website development spammer |
| Spoofing Risk | Scammers spoof local 519 numbers to appear as familiar southwestern Ontario calls — if you live in or near London, Windsor, or Kitchener-Waterloo, scammers know you are more likely to answer what appears to be a local call |
| Typical Strategy | Neighbor spoofing — faking a familiar London, Windsor, or Kitchener number to build trust before making fraudulent requests, often using bilingual (English and French) scripts to target Ontario's diverse communities |
| Signature Scam — CRA Tax Arrest Threat | Callers claiming to be from the Canada Revenue Agency demand immediate payment for alleged tax debts using 519 numbers to appear locally legitimate — threatening arrest or legal proceedings within hours if payment is not made via gift cards, wire transfer, or cryptocurrency |
| Signature Scam — Amazon/Alexa Tech Support | Callers claiming to be from "Amazon Alexa customer support" tell 519-area recipients their computer is infected and demand payment — sometimes $500 — to fix a non-existent problem, attempting to gain remote access to the victim's device and financial accounts |
| Signature Scam — Timeshare Vacation Pressure | A company called "Vitality Vacations" is offering discounted hotel stays in Ontario destinations like Collingwood, insisting recipients attend a timeshare presentation and becoming hostile when told no, a high-pressure sales tactic confirmed by multiple southwestern Ontario residents |
| Signature Scam — Website Development Cold Calls | Robocallers claiming to offer website development services for small businesses in Toronto and London leave canned messages from one 519 number but provide a different callback number — a bait-and-switch approach to collect deposits for services never rendered |
| Signature Scam — Fake Prize / Lottery Win | Callers notify recipients they have won a large prize and request payment of fees or taxes before the prize can be delivered, with Prize/winnings being the single most reported scam category for the 519 area code |
| Cross-Border Impact | The majority of US-side complaints about spoofed 519 numbers originate from cities in North Carolina, Montana, Ohio, Florida, and Illinois — confirming that scammers use 519 numbers to target US recipients who may not recognize the Canadian area code |
| Reporting Authority | Report suspicious calls to the Canadian Anti-Fraud Centre at 1-888-495-8501 or at antifraudcentre-centreantifraude.ca; for CRA impersonation, contact the CRA directly at 1-800-959-8281 |
| Key Risk Indicator | CRA calls demanding immediate gift card payment, Amazon alerts requesting remote computer access, vacation offers requiring timeshare attendance, or prize notifications requiring upfront fees |
| Safety Tip | The CRA never demands payment by gift card, cryptocurrency, or wire transfer — and Amazon will never call asking for remote access to your computer. Always hang up and contact organizations directly through their official websites |
What Are the Business Benefits of the 519 Area Code?
| Local Presence | A 519 number is the architectural backbone of southwestern Ontario's communications — instantly conveying local credibility in one of Canada's most industrially and technologically significant regions |
|---|---|
| Customer Trust Factor | A local London, Windsor, or Kitchener-Waterloo 519 number dramatically increases answer rates vs. unknown out-of-province numbers in a region where community trust and local identity are paramount |
| Automotive Corridor Advantage | Windsor sits directly across from Detroit at the Ambassador Bridge — the busiest international border crossing in North America — making a 519 number essential for any business in the Canada-US automotive supply chain, from parts manufacturing to logistics |
| Silicon Valley North Access | Kitchener, Waterloo, and Cambridge form the core of Canada's most celebrated technology hub — home to BlackBerry and hundreds of high-growth startups — making 519 a strategic code for technology businesses targeting Canada's premier innovation corridor |
| Coverage Advantage | One number covers all of southwestern Ontario's major economic centers — London, Windsor, Kitchener-Waterloo, Guelph, Sarnia, and dozens of smaller communities — reaching over 2.5 million residents across the region |
| VoIP Compatibility | Easily available for SaaS platforms, call centers, and remote teams serving the southwestern Ontario market |
| Scalability | Covers roughly 7.78 million unique phone numbers across the 519/226/548/382 overlay complex, with three overlays ensuring long-term number availability |
| Economic Profile | London experienced a 3.2% GDP increase driven by healthcare, education, and technology sectors, while the broader southwestern Ontario region contributes significantly to Canada's manufacturing output — particularly automotive, food processing, and advanced manufacturing |
| Marketing Use | Ideal for local SEO, digital ads, and customer outreach across London, Windsor, Kitchener, Waterloo, Cambridge, Guelph, Sarnia, Stratford, Owen Sound, and surrounding communities |
| Startup Friendly | Highly attractive for technology, AI, and fintech startups given the Kitchener-Waterloo corridor's world-class startup ecosystem — anchored by the University of Waterloo, Wilfrid Laurier University, Communitech, and Velocity, Canada's most prolific startup incubator |
| Call Routing Flexibility | Can route calls globally while appearing local to southwestern Ontario customers — particularly valuable for automotive and manufacturing companies managing cross-border Canada-US operations |
| Top Industries | Automotive manufacturing (Stellantis Windsor Assembly, Toyota Cambridge), technology and innovation (Kitchener-Waterloo's tech corridor), healthcare (London Health Sciences Center, St. Joseph's Health Care), education (Western University, University of Waterloo, University of Guelph), food and beverage processing, insurance, and agriculture all benefit most from a local 519 presence |
| Use Case Examples | AI receptionist, automotive supplier and manufacturing lines, technology startup hotlines, healthcare practices and hospital networks, university-affiliated research services, agricultural and food processing businesses, cross-border logistics and customs brokerage services, insurance and financial advisory practices, and local retail and hospitality businesses |
