Get a local business phone number in Grass Lake, MI

What area code is Grass Lake, MI?

With 6,260 residents in the Census 2024 estimate, Grass Lake sits in Jackson County, Michigan. All 3 exchanges NANPA lists for its rate center are in area code 517. Grass Lake is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 517 are dialed as seven digits and toll calls as 1 plus ten digits.

Phone carriers in Grass Lake

3 carriers hold the 3 exchanges assigned to Grass Lake's rate center. Frontier North, INC. - Mi has the most, with 1. 3 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Grass Lake can come from any of these blocks; once it is yours, porting lets it move between providers.

Local prefixes for Grass Lake

These are the central office codes NANPA records for Grass Lake. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 1 of the 3 were assigned in 2020 or later.

When Grass Lake's exchanges were assigned

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

How local numbers work in Grass Lake

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

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

Who does business near Grass Lake

Grass Lake is part of the Jackson, MI metro area, home to 160,000 people in 2024. County Business Patterns counted 2,991 business establishments in the Jackson, MI metro area in 2023, employing 50,612 people. The largest sectors by establishment count are retail trade (483), health care and social assistance (395), and other services (except public administration) (312).

Business phone service in Grass Lake

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 Grass Lake 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 Jackson, MI 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.