947 area code: location, overlays and numbers
Detroit, Michigan is served by US telephone area code 947, in service since 2002 and sharing an overlay with 248.
- Location
- Detroit, Michigan
- Service start year
- 2002
- Time zone in use
- The Eastern time zone
- Overlay
- 248
- Calls inside the area
- Full 10-digit dialling
- The rate centres
- 20
- Exhaust projection
- 2065
- Code for the country
- +1 (United States)
Source: NANPA public reports, the area code report and the rate-centre report, file dated 11/01/2026; the exhaust year comes from the NANPA projections (April 2026), 2026-1. We are not an official NANPA site.
Get hold of a 947 number
There are two ways to reach a 947 number. With its plan, a provider assigns a new number, chosen at sign-up from the pool of numbers the provider holds for this code. Sellers post numbers they already own, often with a pattern, at a one-time price, and later you transfer that number over to a provider.
Providers sorted by first-year cost
| Provider | Cheapest plan | First year | Link |
|---|---|---|---|
 Free app | Basic (Just for me), free | $0 | Open Google Voice |
 Free app | Free plan, free | $0 | Open TextNow |
 Developer API | Pay-as-you-go local number, $1.15 a month | $13.80 | Open Twilio |
 Second-number app | Standard, $3.99 a month billed yearly | $47.99 | Open Burner |
 Toll-free specialist | Solo, $6.99 a month billed yearly | $84 | Open UniTel Voice |
 Second-number app | Deluxe (local number), $6.99 a month billed yearly | $102.88 | Open GoDaddy Conversations (formerly Smartline) |
Sellers offering listed local numbers
| Seller | What it sells | Listed price | Monthly fee | Link |
|---|---|---|---|---|
 Marketplace | Local numbers | From $9 one-time | None stated | Search at Exclusive Digits |
 Marketplace | Local and toll-free | From $9.95 one-time | $2.99 a month | Search at NumberBarn |
 Number broker | Local and toll-free | From $99 one-time | None stated | Search at RingBoost |
 Number broker | Local and toll-free | From $100 one-time | None stated | Search at PhoneNumberExpert |
| 212areacode.comNumber broker | Local numbers | From $150 one-time | None stated | Search at 212areacode.com |
Some sellers and providers may pay us a referral fee. That never affects the ranking, which follows first-year cost. How we earn
Places in the 947 area code
For 947, NANPA lists 20 rate centres. Numbers are assigned within each of these local calling areas:
Walled Lake, West Bloomfield, Troy, Southfield, South Lyon, Royal Oak, Rochester, Pontiac, Oxford, Ortonville, Northville, Milford-white Lake, Lake Orion, Holly, Farmington, Drayton Plains, Commerce, Clarkston, Birmingham, Auburn Heights.
Area codes related to this one
One area, one pool of numbers: 248. Any of these codes can supply a new number here, so ask for whichever one you want.
Michigan also has these codes: 313, 517, 616, 906, 810, 734, 231, 989, 586, 269 and 679.
947 area code questions
Which places does area code 947 cover?
Calls to 947 connect in Detroit, Michigan, and around Detroit-Warren-Dearborn, MI.
Which country code does a 947 number use?
+1. The North American Numbering Plan covers 947. From abroad, you dial +1 947 and then the 7-digit number.
What time is it in the 947 area code?
The time in 947 is Eastern.
Who calls using a 947 number?
Anyone holding one of these numbers: homes, mobiles, local businesses, plus callers using a fake local number. The 947 number on your screen points to where it was assigned, not to the person calling.