Get a local business phone number in Rio, WI

Rio area codes

Rio village is a Census place in Columbia County, Wisconsin, with an estimated 1,126 residents in 2024. All 2 exchanges NANPA lists for its rate center are in area code 920. 920 is part of an overlay with 274, so a new local number in Rio may carry any of those codes depending on which have numbers available. Rio is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 920 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Rio exchanges by carrier

2 carriers hold the 2 exchanges assigned to Rio'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. A business number in Rio can come from any of these blocks; once it is yours, porting lets it move between providers.

Rio phone prefixes

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Rio's rate center (RIO). None were assigned in 2020 or later.

What makes a number local to Rio

What a caller sees as "local" is the area code plus prefix. In Rio, those come from the RIO rate center, as recorded by NANPA.

Keeping an existing Rio number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 920 when you pick it.

Businesses around Rio

Rio is part of the Madison, WI metro area, home to 708,000 people in 2024. County Business Patterns counted 17,791 business establishments in the Madison, WI metro area in 2023, employing 358,759 people. The largest sectors by establishment count are professional, scientific, and technical services (2,203), retail trade (2,026), and health care and social assistance (1,934).

A Rio 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 Rio, 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.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Madison, WI metro area, 20 users on RingCentral RingEX Core come to $600.00 a month and on Ooma Office Pro $499.00, at month-to-month list prices checked September 28, 2026. On Callata the same 20 people cost $399.00 a month, less than either per-seat plan.