Area Code 507

About Area Code 507

Area code 507 is a geographic telephone area code assigned to Rochester, Minnesota. It operates in the Central time zone and was first introduced in 1954. Split from 612. Southern Minnesota.

Within Minnesota, area code 507 shares numbering capacity with 6 other area codes. The state's 5,717,918-person population (2023 Census Bureau estimate) is served by a combined 7 active codes, with 507 primarily responsible for the Rochester region. Minnesota's state capital is Saint Paul, and its largest city is Minneapolis.

When you receive a call from a 507 number on your Caller ID, the call originated from a phone number assigned to the 507 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 507 only confirms where the number was originally assigned.

Where is the 507 area code located?

Area code 507 is assigned to Rochester, Minnesota, in the Central time zone. The state of Minnesota uses 7 active area codes, and 507 is one of them. Calls placed from the 507 area code originate from numbers assigned by NANPA — the North American Numbering Plan Administrator — and the 507 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 507 area code?

The 507 area code serves 8 notable cities, listed below in order of population. The largest city in the 507 territory is Rochester (121,395 residents in Olmsted County).

• Rochester, MN — 121,395 residents (9.5% of 507 numbers)
• Minneapolis, MN — 429,954 residents (33.8% of 507 numbers)
• Saint Paul, MN — 309,180 residents (24.3% of 507 numbers)
• Duluth, MN — 86,692 residents (6.8% of 507 numbers)
• Bloomington, MN — 89,983 residents (7.1% of 507 numbers)
• Brooklyn Park, MN — 81,932 residents (6.4% of 507 numbers)
• Plymouth, MN — 80,053 residents (6.3% of 507 numbers)
• Maple Grove, MN — 72,092 residents (5.7% of 507 numbers)

Phone number format in area code 507

All phone numbers within area code 507 follow the standard North American 10-digit format:(507) 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 + 507 + 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 507 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 507

Split from 612. Southern Minnesota.

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 507 area code safe to answer?

Area code 507 itself is a normal geographic code with no elevated spam risk. That said, scammers can spoof any area code — including 507 — so if you don't recognize the full number, let it go to voicemail and verify the caller's identity before calling back.