248 Area Code — Oakland County, Michigan

Reviewed by Jordan Lee, Digital Safety Researcher — Last updated January 2026

About the 248 Area Code

Key Information

Region: Oakland County
State / Province: Michigan
Timezone: Eastern
Major Cities: Troy, Pontiac, Southfield

Area Code Overview

Area code 248 was created in 1997 as a split from 313, serving Oakland County and parts of Macomb County in metropolitan Detroit — Southfield, Troy, Auburn Hills, Pontiac, Royal Oak, Farmington Hills, Birmingham, and Bloomfield Hills. Overlay code 947 was added in 2013. Oakland County is consistently ranked among the wealthiest counties in the Midwest by median household income, with a significant concentration of automotive industry executives, engineers, and suppliers — particularly around the Chrysler Technical Center in Auburn Hills, GM's Technology Center in Warren (partial), and the dense supplier corridor along M-59. Southfield hosts a substantial financial and legal services sector, including one of Michigan's largest concentrations of law firms and insurance companies.

Scam Patterns in 248

Automotive Industry Executive and Supplier Credential Phishing

248 territory's concentration of OEM and Tier-1 supplier professionals makes it a prime target for business email compromise and credential phishing specifically crafted for the auto industry. Scam texts impersonate corporate IT at Stellantis, GM Supplier Relations, or Ford's supplier portal (Covisint/FCSD) — claiming VPN access, supplier portal credentials, or engineering system logins are expiring and require immediate renewal. The value target is intellectual property access: design files, procurement terms, and supplier pricing data that constitute competitive intelligence.

Oakland County Property Reassessment and Tribunal Fraud

Michigan conducts triennial property assessments, and Oakland County property owners receive legitimate communications about assessed value changes. Scam texts impersonate Oakland County's Assessment Division or the Michigan Tax Tribunal, claiming a homeowner has been over-assessed and can receive a refund — but must pay an upfront "filing fee" or provide banking information to receive the correction. The Michigan Tax Tribunal does not initiate contact with taxpayers by text; property owners who believe they are over-assessed file appeals themselves at michigan.gov/taxtribunal.

Michigan Secretary of State Vehicle Title Transfer Scam

Michigan processes one of the nation's highest volumes of vehicle title transfers, reflecting the region's high car ownership rates and active used car market. Scam texts from 248 numbers offer to facilitate "expedited" Michigan SOS title transfers — for a fee — often targeting buyers of privately sold vehicles who have legitimately lost track of paperwork or are confused about the process. A variant impersonates the Michigan SOS directly, claiming a title is being transferred to another party without the owner's knowledge and requiring immediate action through a provided link.

VoIP and Spoofing Risk Assessment

Risk Level: MODERATE

248 retains significant landline heritage from Oakland County's suburban business district, giving it a moderate-baseline line-type profile. The automotive professional credential phishing pattern is more financially severe than it appears on a per-incident basis: compromised supplier portal access can result in contract manipulation, bid rigging exposure, or intellectual property theft worth far more than typical consumer fraud. Law enforcement in Oakland County has flagged credential theft targeting automotive suppliers as an underreported but growing category.

What To Do If You Receive a Text From a 248 Number

Step 1: Verify corporate supplier portal access through your company's IT helpdesk. OEM supplier portals (Covisint, Stellantis SupplierConnect, Ford FCSD) do not require renewal through a text link. Contact your IT department at the number in your company directory if you receive a credential expiration alert.

Step 2: Look up the number. Search at Who Sent That Text Message to check for prior reports, especially for automotive industry impersonation, property assessment fraud, or vehicle title transfer scams.

Step 3: Manage Michigan SOS title transfers through official channels. Michigan title transfers are handled at michigan.gov/sos or at any SOS branch office. No authorized third party can expedite a title transfer for a fee. See our guide on how to identify text message scams.

Step 4: Report. Forward to 7726 (SPAM). Report automotive industry fraud to the FBI's Detroit field office. Report SOS impersonation to the Michigan Department of State. File with the FTC at reportfraud.ftc.gov.

Frequently Asked Questions

What area code is 248?

Area code 248 serves Oakland County and parts of Macomb County in metropolitan Detroit, including Southfield, Troy, Auburn Hills, Pontiac, Royal Oak, Farmington Hills, and Birmingham. It was created in 1997 as a split from 313 and shares coverage with overlay 947.

Is area code 248 used for scams?

248 is a legitimate Detroit suburban area code. Documented scam patterns include automotive OEM and supplier credential phishing targeting Oakland County's auto industry workforce, Oakland County property reassessment fraud, and Michigan Secretary of State vehicle title transfer scams. Verify any 248 text involving corporate portal access, property assessments, or vehicle title actions through official channels.

What makes automotive supplier credential theft particularly valuable to scammers?

OEM supplier portals contain pricing agreements, engineering specifications, delivery schedules, and competitive bid data. Compromised supplier credentials can be used to manipulate purchase orders, redirect payments, or extract proprietary design files. This makes supplier credential phishing a financially motivated form of corporate espionage that exceeds typical consumer fraud losses — and explains why organized threat actors specifically target the 248 corridor's automotive workforce.

Related Area Codes

947 — The 2013 overlay for 248 territory; newer numbers in Oakland County may carry 947.
313 — City of Detroit. The original code that 248 split from in 1997; covers Detroit proper and inner-ring suburbs.
586 — Macomb County (Warren, Sterling Heights). The northeastern suburban Detroit code bordering 248 territory.

Carriers & Network Type for 248 Numbers

AT&T Mobility Verizon Wireless T-Mobile USA US Cellular

Network mix: Mixed — 248 numbers include mobile, landline, and VoIP lines.

Common Scam Patterns

FCC complaint data for 248 numbers includes:

Robocall/Auto-dialer
Extended warranty scam
Health insurance offer
IRS/Government impersonation

If You Got a Text from 248

Don't reply — responding to unknown texts confirms your number is active and invites more messages.

Look up the number to check its carrier, line type, and any spam reports from other users in our community.

Block and report: forward to 7726 (SPAM) or report via your carrier's spam-reporting app.

Look Up This 248 Number →

Who Typically Calls from the 248 Area Code?

Area code 248 covers Oakland County, Michigan, a metropolitan market with a diverse mix of mobile, landline, and VoIP subscribers across residential and commercial accounts. Primary carriers include AT&T Mobility, Verizon Wireless, and T-Mobile USA. The area encompasses Troy, Pontiac, and Southfield and operates in the Eastern time zone, supporting a broad range of modern telecommunications services. Calls from 248 numbers originate in Oakland County, Michigan. Residents, local businesses, schools, medical offices, and government agencies in this region all use 248 numbers. If you received an unexpected call or text from a 248 number, it may be a neighbor, a local service provider, or — in some cases — an unwanted solicitor.

Because 248 is a legitimate, widely used area code, scammers sometimes spoof it to make their calls appear local and trustworthy. This technique — called neighbor spoofing — makes it more likely that recipients will answer. A reverse phone lookup is the fastest way to find out whether a 248 number is genuinely local or spoofed.

Is a 248 Phone Number Spam?

Not all 248 calls are spam, but the area code is not immune to robocall campaigns and phone scams. Common complaints about 248 numbers include warranty extension scams, debt collection harassment, IRS impersonation calls, and unsolicited insurance offers.

If a 248 number called you and didn't leave a voicemail, that's a red flag — legitimate callers typically leave a message. Use Who Sent That Text Message to look up the number instantly and see whether other users have flagged it as spam.

You can also report a suspicious 248 number directly from our lookup results, helping protect others in the community from the same caller.

Look Up a 248 Number Now

Enter any 248 area code phone number below and get instant results — carrier, line type, caller name (where available), and spam reports submitted by real users.

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Other Area Codes in Michigan

Michigan has multiple area codes serving different regions. If the number you received isn't from 248, check one of the other Michigan area codes below.