Area Code 660

About Area Code 660

Area code 660 is a geographic telephone area code assigned to Moberly, Missouri. It operates in the Central time zone and was first introduced in 1997. Split from 816. Northern Missouri.

Within Missouri, area code 660 shares numbering capacity with 5 other area codes. The state's 6,184,543-person population (2023 Census Bureau estimate) is served by a combined 6 active codes, with 660 primarily responsible for the Moberly region. Missouri's state capital is Jefferson City, and its largest city is Kansas City.

When you receive a call from a 660 number on your Caller ID, the call originated from a phone number assigned to the 660 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 660 only confirms where the number was originally assigned.

Where is the 660 area code located?

Area code 660 is assigned to Moberly, Missouri, in the Central time zone. The state of Missouri uses 6 active area codes, and 660 is one of them. Calls placed from the 660 area code originate from numbers assigned by NANPA — the North American Numbering Plan Administrator — and the 660 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 660 area code?

The 660 area code serves 12 notable cities, listed below in order of population. The largest city in the 660 territory is Kansas City (508,090 residents in Wyandotte County).

• Kansas City, MO — 508,090 residents (29.6% of 660 numbers)
• Saint Louis, MO — 286,578 residents (16.7% of 660 numbers)
• Springfield, MO — 171,591 residents (10% of 660 numbers)
• Independence, MO — 122,924 residents (7.2% of 660 numbers)
• Columbia, MO — 126,532 residents (7.4% of 660 numbers)
• Lee's Summit, MO — 102,092 residents (5.9% of 660 numbers)
• O'Fallon, MO — 92,652 residents (5.4% of 660 numbers)
• Saint Joseph, MO — 72,779 residents (4.2% of 660 numbers)
• Saint Charles, MO — 71,036 residents (4.1% of 660 numbers)
• Blue Springs, MO — 61,043 residents (3.6% of 660 numbers)

Phone number format in area code 660

All phone numbers within area code 660 follow the standard North American 10-digit format:(660) 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 + 660 + 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 660 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 660

Split from 816. Northern Missouri.

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 660 area code safe to answer?

Area code 660 itself is a normal geographic code with no elevated spam risk. That said, scammers can spoof any area code — including 660 — so if you don't recognize the full number, let it go to voicemail and verify the caller's identity before calling back.