Get a local business phone number in Rochester Hills, MI

What area code is Rochester Hills, MI?

With 78,330 residents in the Census 2024 estimate, Rochester Hills sits in Oakland County, Michigan. NANPA lists 28 exchanges for its rate center across 2 area codes; 248 has the most (23, 82%). 248 is part of an overlay with 947, so a new local number in Rochester Hills may carry any of those codes depending on which have numbers available. Rochester Hills is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 248 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Phone carriers in Rochester Hills

13 carriers hold the 28 exchanges assigned to Rochester Hills's rate center. Michigan Bell Tel CO has the most, with 7. 22 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 Rochester Hills

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Rochester Hills. The earliest assignment date recorded in the file for these codes is 2001. 4 of the 28 were assigned in 2020 or later.

When Rochester Hills's exchanges were assigned

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

How local numbers work in Rochester Hills

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

New local numbers are drawn from carrier inventory, so the exact 248 numbers available change over time; porting an existing number is free.

Who does business near Rochester Hills

Rochester Hills is part of the Detroit-Warren-Dearborn, MI metro area, home to 4.4 million people in 2024. County Business Patterns counted 102,430 business establishments in the Detroit, MI metro area in 2023, employing 1,846,717 people. The largest sectors by establishment count are retail trade (14,016), health care and social assistance (13,890), and professional, scientific, and technical services (11,783).

Business phone service in Rochester Hills

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.

Porting a number you already use in Rochester Hills 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 Detroit, MI metro area, 18 users on RingCentral RingEX Core come to $540.00 a month and on Ooma Office Pro $449.10, at month-to-month list prices checked September 28, 2026. Callata comes to $359.00 a month for 18 users ($99 a month with 5 users included, then $20 per additional user), below both.