Get a local business phone number in Casco, WI

What area code is Casco, WI?

Casco town is a Census town in Kewaunee County, Wisconsin, with an estimated 1,163 residents in 2024. NANPA lists 2 exchanges for its rate center across 2 area codes; 274 has the most (1, 50%). 274 is part of an overlay with 920, so a new local number in Casco may carry any of those codes depending on which have numbers available. Casco is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 274 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Who holds Casco phone exchanges

2 carriers hold the 2 exchanges assigned to Casco's rate center. Onvoy, LLC - Wi has the most, with 1. 2 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.

Casco phone prefixes

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Casco's rate center (CASCO). The earliest assignment date recorded in the file for these codes is 2025. 1 of the 2 were assigned in 2020 or later.

How local numbers work in Casco

NANPA ties every exchange to a rate center. For Casco that is CASCO, so a number from one of these exchanges reads as local to people in and around Casco.

Keeping an existing Casco number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 274 when you pick it.

Who does business near Casco

Casco is part of the Green Bay, WI metro area, home to 335,000 people in 2024. County Business Patterns counted 7,968 business establishments in the Green Bay, WI metro area in 2023, employing 155,112 people. The largest sectors by establishment count are retail trade (982), health care and social assistance (912), and construction (873).

Setting up a Casco business line

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 Casco 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.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Green Bay, WI metro area, 19 users on RingCentral RingEX Core come to $570.00 a month and on Ooma Office Pro $474.05, at month-to-month list prices checked September 28, 2026. Callata comes to $379.00 a month for 19 users ($99 a month with 5 users included, then $20 per additional user), below both.