Get a local business phone number in Lennox, SD

Area codes in Lennox

With 2,539 residents in the Census 2024 estimate, Lennox sits in Lincoln County, South Dakota. All 3 exchanges NANPA lists for its rate center are in area code 605. Lennox 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 Lennox

2 carriers hold the 3 exchanges assigned to Lennox'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. A business number in Lennox can come from any of these blocks; once it is yours, porting lets it move between providers.

Local prefixes for Lennox

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Lennox. The earliest assignment date recorded in the file for these codes is 2003. None were assigned in 2020 or later.

When Lennox's exchanges were assigned

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

What makes a number local to Lennox

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

Keeping an existing Lennox number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 605 when you pick it.

The local business market

Lennox is part of the Sioux Falls, SD-MN metro area, home to 308,000 people in 2024. County Business Patterns counted 9,170 business establishments in the Sioux Falls, SD-MN metro area in 2023, employing 160,101 people. The largest sectors by establishment count are construction (1,254), retail trade (1,062), and health care and social assistance (913).

Business phone service in Lennox

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 Lennox 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 Sioux Falls, SD-MN metro area, 17 users on RingCentral RingEX Core come to $510.00 a month and on Ooma Office Pro $424.15, at month-to-month list prices checked September 28, 2026. Callata comes to $339.00 a month for 17 users ($99 a month with 5 users included, then $20 per additional user), below both.