Area code 712

About area code 712

NANPA lists 712 as an in-service geographic area code for Iowa, first put into service on January 1, 1947. It is not part of an overlay, so every number in its territory starts with 712. It is in the Central time zone. The places with the most assigned exchanges include Sioux City, Council Bluffs, Sergeant Bluff, Spencer, and Le Mars. By population, its largest named places are Sioux City, Council Bluffs, Storm Lake, Spencer, and Le Mars.

Cities and towns in area code 712

712 holds 23% of the 2,748 central office codes assigned in Iowa, the most of any code in the state. 228 Census places could be matched to rate centers with 712 exchanges; the most populous are Sioux City (86,875), Council Bluffs (62,665), Storm Lake (11,627), and Spencer (11,418). For a storefront or service area inside 712, the place pages show which prefixes are rated local there.

Dialing 712 numbers

According to NANPA's dialing-plan data, local calls within 712 are dialed as seven digits and toll calls as 1 plus ten digits. Seven-digit local dialing is still permitted here, but customers calling from other area codes, and every mobile contact list, use all ten digits.

Who holds 712 exchanges

114 carriers hold the 633 central office codes assigned in 712. Cellco Partnership d/b/a Verizon Wireless - Ia has the most, with 68 (11%). 434 of the codes (69%) 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 712

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 712 has codes in 244 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 712

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). 633 are assigned in 712, 79% of 800. 87 were assigned in 2020 or later.

Using area code 712 for business calls

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 712, 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.