Get a local business phone number in Denison, IA

Denison area codes

Denison city is a Census place in Crawford County, Iowa, with an estimated 8,302 residents in 2024. All 7 exchanges NANPA lists for its rate center are in area code 712. Denison is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 712 are dialed as seven digits and toll calls as 1 plus ten digits.

Denison exchanges by carrier

4 carriers hold the 7 exchanges assigned to Denison's rate center. Cellco Partnership d/b/a Verizon Wireless - Ia has the most, with 3. 4 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.

Exchanges (NPA-NXX) assigned in Denison

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Denison's rate center (DENISON). The earliest assignment date recorded in the file for these codes is 2005. 1 of the 7 were assigned in 2020 or later.

When Denison's exchanges were assigned

The table groups Denison's exchanges by the decade NANPA recorded them as assigned.

Rate centers and local calling in Denison

Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Denison's numbers are rated to the DENISON rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Denison number.

If your business already has a Denison number, porting it to Callata is free and keeps it on your cards, listings and vehicles.

Businesses around Denison

Denison is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 83,321 business establishments in Iowa in 2023, employing 1,415,652 people. The largest sectors by establishment count are retail trade (10,970), other services (except public administration) (9,184), and health care and social assistance (9,092).

A Denison number on Callata

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

Porting a number you already use in Denison is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

A 17-person team is the benchmark here, the rounded average establishment size in Iowa. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $510.00 a month and Ooma Office Pro $424.15. Callata comes to $339.00 a month for 17 users ($99 a month with 5 users included, then $20 per additional user), below both.