Get a local business phone number in Monticello, IA

What area code is Monticello, IA?

With 4,095 residents in the Census 2024 estimate, Monticello sits in Jones County, Iowa. All 4 exchanges NANPA lists for its rate center are in area code 319. Monticello is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 319 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Who holds Monticello phone exchanges

4 carriers hold the 4 exchanges assigned to Monticello's rate center. Qwest Corporation has the most, with 1. 4 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. Holding a code means NANPA assigned that block of numbers to the carrier for this rate center; individual numbers may since have been ported elsewhere.

Monticello phone prefixes

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Monticello. The earliest assignment date recorded in the file for these codes is 2010. 1 of the 4 were assigned in 2020 or later.

When Monticello's exchanges were assigned

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

Rate centers and local calling in Monticello

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

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

Businesses around Monticello

Monticello is part of the Cedar Rapids, IA metro area, home to 279,000 people in 2024. County Business Patterns counted 6,793 business establishments in the Cedar Rapids, IA metro area in 2023, employing 128,088 people. The largest sectors by establishment count are health care and social assistance (848), retail trade (830), and construction (738).

A Monticello 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.

Porting a number you already use in Monticello 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.

The comparison below uses 19 users, the rounded average establishment size in the Cedar Rapids, IA metro area. At list prices checked September 28, 2026, that is $474.05 a month on Ooma Office Pro and $570.00 on RingCentral RingEX Core. Callata comes to $379.00 a month for 19 users ($99 a month with 5 users included, then $20 per additional user), below both.