354 area code
Valleyfield area, Eastern Time.Area code 354 covers Valleyfield, Joliette, St-Jerome and 49 more places in Quebec, on Eastern Time. 450 and 579 cover the same area.
Right now in Valleyfield
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer)
Calling hours: Mon to Fri, 9 AM to 9:30 PM · Sat to Sun, 10 AM to 6 PM (Canada's CRTC rules)
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Where 354 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 354 has 52. Each one's share is how many 354 numbers start there.
- Valleyfield5%
- Joliette3%
- St-Jerome3%
- Longueuil3%
- St-Lambert3%
- Chateauguay3%
- Rigaud3%
- Hemmingford3%
Also: Granby, St-Hyacinthe, Ste-Therese, Pont-Viau, Sorel, St-Jean, St-Eustache, Ste-Rose, Boucherville, Lachute, Terrebonne, St-Vincent-de-Paul + 32 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 354 number?
Sales calls to homes and cell phones have legal hours, set by Canada's CRTC rules. Hold every 354 number to them, since you can't tell a work line from a personal cell.
What applies to 354Mon to Fri, 9 AM to 9:30 PM · Sat to Sun, 10 AM to 6 PM
- Canada (CRTC)Mon to Fri, 9 AM to 9:30 PM · Sat to Sun, 10 AM to 6 PMApplies to calls to businesses too. Some provinces add rules the tool doesn't apply, like British Columbia's ban on calls on statutory holidays.CRTC Unsolicited Telecommunications Rules, Part III, s. 23 (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
354 and 450 and 579
354 went into service on October 22, 2022. 354, 450 and 579 cover the same area, so new numbers can get any of them and neighbors can have different area codes. 354 holds 4% of the area's exchanges; 450 holds the most. Local calls take all 10 digits.
- 1998450 overlay
- 2010579 overlay
- 2022354 starts
Source: NANPA area code database
Calling a list of 354 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
354 area code FAQ
What area code is 354?
354 is a Quebec area code for Valleyfield, Joliette, St-Jerome, Longueuil and 48 more places.
What time zone is the 354 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
Is 450 the same as 354?
Same area, different code. 354, 450 and 579 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 354 numbers?
Mon to Fri, 9 AM to 9:30 PM · Sat to Sun, 10 AM to 6 PM, local time, under Canada's CRTC rules.
When did the 354 area code start?
On October 22, 2022.
Calling 354 numbers? Reach more of them.
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