Area codes in Guelph, Ontario

Guelph, Ontario uses 3 area codes — 519, 226 and 548. The main Guelph area code is 519.

Area codes serving Guelph

• 519 — London
• 226 — London
• 548 — London

All Ontario area codes · Is a Guelph call a scam?

Nearby cities

• Kitchener area codes
• Brampton area codes
• Hamilton area codes
• Oakville area codes
• Toronto area codes
• London area codes
• Barrie area codes
• Oshawa area codes

Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of June 20, 2026. Refreshed monthly.