Get a local business phone number in Mission, SD

What area code is Mission, SD?

Mission, in Todd County, South Dakota, had a Census-estimated population of 1,135 in July 2024. All 3 exchanges NANPA lists for its rate center are in area code 605. Mission is in the Central and Mountain time zone.

According to NANPA's dialing-plan data, local calls within 605 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Phone carriers in Mission

2 carriers hold the 3 exchanges assigned to Mission's rate center. New Cingular Wireless PCS, LLC - Il has the most, with 2. 2 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.

Local prefixes for Mission

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Mission. The earliest assignment date recorded in the file for these codes is 2005. None were assigned in 2020 or later.

How local numbers work in Mission

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

New local numbers are drawn from carrier inventory, so the exact 605 numbers available change over time; porting an existing number is free.

Who does business near Mission

Mission is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 29,106 business establishments in South Dakota in 2023, employing 383,805 people. The largest sectors by establishment count are retail trade (3,838), construction (3,802), and other services (except public administration) (2,986).

Business phone service in Mission

Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.

Porting a number you already use in Mission 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 13-person team is the benchmark here, the rounded average establishment size in South Dakota. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $390.00 a month and Ooma Office Pro $324.35. Callata comes to $259.00 a month for 13 users ($99 a month with 5 users included, then $20 per additional user), below both.