Area code
Area code 248 — Oakland County, MI
Michigan · in service since May 10, 1997
Area code 248 covers Oakland County, MI. It is an overlay: 947 serves the same area, so neighbors can have different area codes.
Overlay, same area: 947
Local time in Oakland County
Spam reports from Sep 23 – Oct 22, 2026
Average #206 of 461 codes
454 FTC complaints
Consumer reports, not verified by the FTC.
See the reports- Time zoneEastern Time
- Local calls10 digits
- Prefixes799 assigned
- Runs out~4Q 2065
- Unwanted call?Block & report
Spam call reports about 248 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 43 |
| Sep 14 | 118 |
| Sep 21 | 84 |
| Sep 28 | 108 |
| Oct 5 | 105 |
| Oct 12 | 78 |
| Oct 19 (4 days) | 115 |
Compared with all codes
- Robocalls
- 65%all codes 75%
- Callers with the same code
- 65%all codes 35%
- Rank by complaints
- #206of 461 · middle half
- FCC complaints, Oct 2025 – Sep 2026
- 11249 about text messages
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Medical & prescriptions | 71 11% | |
| Reducing your debt (credit cards, mortgage, student loans) | 71 11% | |
| Calls pretending to be government, businesses, or family and friends | 69 11% | |
| Dropped call or no message | 68 10% | |
| Warranties & protection plans | 17 3% | |
| Home improvement & cleaning | 12 2% |
Where the people who complained live
Sep 11 – Oct 22, 2026
| State | Complaints | |
|---|---|---|
| Michigan | 510 78% | |
| California | 30 5% | |
| Florida | 15 2% | |
| Ohio | 13 2% | |
| Texas | 13 2% |
October 2026 (partial) report · most reported
Consumer reports, not verified by the FTC · source
Source: FTC Do Not Call complaints created Sep 11 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).
Source: FCC Consumer Complaints data, unwanted calls filed Oct 1, 2025 – Sep 30, 2026, by caller ID; not verified by the FCC.
Area code 248 location and prefixes
| Exchange (NANPA) | Place | County | Prefixes |
|---|---|---|---|
| PONTIAC | Pontiac | Oakland County | 150 |
| SOUTHFIELD | Southfield | Oakland County | 104 |
| ROYAL OAK | Royal Oak | Oakland County | 84 |
| BIRMINGHAM | Birmingham | Oakland County | 61 |
| TROY | Troy | Oakland County | 61 |
| NORTHVILLE | Northville | spans 2 counties | 54 |
| FARMINGTON | Farmington | Oakland County | 47 |
| W BLOOMFLD | — | — | 37 |
| CLARKSTON | — | — | 25 |
| ROCHESTER | Rochester | Oakland County | 23 |
Plus 11 smaller exchange areas.
Source: NANPA CO codes of Oct 23, 2026; places: U.S. Census Bureau, matched by DialWhere (how).
Is 248 running out of numbers?
Previous forecast (October 2025): 2063, moved later by 2 years.
Forecast exhaust year by edition
Source: NANPA NRUF forecast, April 2026 edition.
Who holds 248 prefixes
The five largest of 30 original holders
As listed by NANPA, not today’s carrier.
| Holder (as listed) | Prefixes | |
|---|---|---|
| Michigan Bell Tel Co. | 251 31% | |
| Verizon Wireless | 72 9% | |
| New Cingular Wireless PCS, LLC | 66 8% | |
| Mcimetro Access Transmission Services LLC | 62 8% | |
| Level 3 Communications, LLC | 58 7% |
Source: NANPA CO codes of Oct 23, 2026.
Questions about area code 248
What area code is 248?
A Michigan area code, in service since May 10, 1997.
Where is 248 area code, and what time zone is it in?
Oakland County, MI; Eastern Time.
Why am I getting spam calls from 248?
454 FTC complaints from Sep 23 – Oct 22, 2026, most often about debt reduction (not verified by the FTC; caller ID can be spoofed).
Will 248 get a new area code?
NANPA forecasts exhaust in 4Q 2065; no relief planning listed.