Area Code 639

About Area Code 639

Area code 639 is a geographic telephone area code assigned to Saskatoon, Saskatchewan. It operates in the Central time zone and was first introduced in 2013. Overlay for 306. Saskatchewan. Overlay 474 (2022).

Within Saskatchewan, area code 639 operates alongside 2 other area codes. The province's 2023 population estimate is 1,231,025. Saskatchewan's capital is Regina and its largest city is Saskatoon.

When you receive a call from a 639 number on your Caller ID, the call originated from a phone number assigned to the 639 area code — but be aware that Local Number Portability (in effect since 2003) means the caller could be physically located anywhere in the US or Canada. Area code 639 only confirms where the number was originally assigned.

Where is the 639 area code located?

Area code 639 is assigned to Saskatoon, Saskatchewan, in the Central time zone. The state of Saskatchewan uses 3 active area codes, and 639 is one of them. Calls placed from the 639 area code originate from numbers assigned by NANPA — the North American Numbering Plan Administrator — and the 639 prefix appears on Caller ID for both landline and wireless calls placed from this region.

The Central time zone observes Daylight Saving Time, shifting from UTC-6 to UTC-5 in summer. The local time shown above is always current, so you can quickly check whether it's a reasonable hour to call back.

What cities and counties use the 639 area code?

The 639 area code serves 10 notable cities, listed below in order of population. The largest city in the 639 territory is Saskatoon (266,141 residents in Saskatoon County).

• Saskatoon, SK — 266,141 residents (42.1% of 639 numbers)
• Regina, SK — 215,106 residents (34% of 639 numbers)
• Prince Albert, SK — 37,752 residents (6% of 639 numbers)
• Moose Jaw, SK — 33,665 residents (5.3% of 639 numbers)
• Yorkton, SK — 16,389 residents (2.6% of 639 numbers)
• Swift Current, SK — 16,720 residents (2.6% of 639 numbers)
• North Battleford, SK — 13,906 residents (2.2% of 639 numbers)
• Estevan, SK — 11,482 residents (1.8% of 639 numbers)
• Lloydminster (SK), SK — 11,765 residents (1.9% of 639 numbers)
• Martensville, SK — 9,706 residents (1.5% of 639 numbers)

Phone number format in area code 639

All phone numbers within area code 639 follow the standard North American 10-digit format:(639) NXX-XXXX. The NXX is the central office prefix (also called an "exchange") and XXXX is the subscriber line number. For long-distance calls within the NANP, dial 1 + 639 + NXX + XXXX. From outside North America, dial your country's international access code, then 1 (the NANP country code), then the 10-digit number.

If you need to verify whether a specific 639 number is wireless, landline, or VoIP, you can use our reverse phone lookup tool. Be aware that number portability means the area code no longer guarantees the caller's physical location — only where the number was first assigned.

History of area code 639

Overlay for 306. Saskatchewan. Overlay 474 (2022).

The original 86 area codes were assigned by AT&T and Bell Labs in 1947 as part of the North American Numbering Plan. At the time, rotary-dial phones meant codes with lower digits (like 212 for NYC, 213 for LA, 312 for Chicago) were given to the largest cities because they took less time to dial. Today's area code assignments still reflect those early choices, even though touch-tone and cell phones made the original reason obsolete.

Is the 639 area code safe to answer?

Area code 639 itself is a normal geographic code with no elevated spam risk. That said, scammers can spoof any area code — including 639 — so if you don't recognize the full number, let it go to voicemail and verify the caller's identity before calling back.