Area code 660

Where area code 660 is

NANPA lists 660 as an in-service geographic area code for Missouri, first put into service on October 12, 1997. It is not part of an overlay, so every number in its territory starts with 660. It is in the Central time zone. The places with the most assigned exchanges include Sedalia, Kirksville, Warrensburg, Clinton, and Maryville. By population, its largest named places are Sedalia, Warrensburg, Kirksville, Marshall, and Moberly.

Places served by 660

660 holds 12% of the 4,168 central office codes assigned in Missouri, the 5th most of the state's 9 codes. 188 Census places could be matched to rate centers with 660 exchanges; the most populous are Sedalia (22,310), Warrensburg (19,998), Kirksville (17,841), and Marshall (13,791). For a storefront or service area inside 660, the place pages show which prefixes are rated local there.

Ten-digit and seven-digit dialing in 660

According to NANPA's dialing-plan data, local calls within 660 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits. Ten-digit local dialing means the area code is part of how customers save and recognize your number, so print it in full everywhere. NANPA's dialing-plan note for this code reads: "1+10 digit permissible at service provider discretion."

Who holds 660 exchanges

53 carriers hold the 516 central office codes assigned in 660. Level 3 Communications, LLC - Mo has the most, with 63 (12%). 406 of the codes (79%) are pooled, meaning the code holder shares blocks of 1,000 numbers with other carriers instead of using all 10,000 itself. Numbers can move between carriers through porting, so a code's holder tells you where the block started, not where every number lives now.

Rate centers and towns in 660

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 660 has codes in 224 rate centers. The table lists the rate centers with the most codes, with the matching Census place where the abbreviation could be matched.

Number supply in 660

An area code has 800 possible central office codes that start with 2 through 9, a few of which are reserved (such as N11 service codes and 555). 516 are assigned in 660, 65% of 800. 45 were assigned in 2020 or later.

A local 660 number on Callata

Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.

If you already have a number in area code 660, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.