The 517 area code serves central Michigan, covering the state capital of Lansing along with Jackson and East Lansing. One of the original 1947 codes, it is now overlaid by area code 227. If a 517 number has appeared on your caller ID, this guide explains where it comes from, how to dial it, and how to stay safe from spoofed calls.
Quick Summary: Area Code 517 at a Glance
| Detail | Information |
|---|---|
| Area Code | 517 |
| State | Michigan (MI) |
| Major Cities | Lansing, Jackson, East Lansing, Mason |
| Time Zone | Eastern Time (ET) |
| Country Code | +1 (USA) |
| Overlay Codes | 227 (co-located) |
Geographic Coverage & Major Cities
Area code 517 covers central Michigan, including Ingham, Jackson, Clinton, Eaton, and Hillsdale counties. It is anchored by the state capital and a major university.
- Lansing – the capital of Michigan
- East Lansing – home of Michigan State University
- Jackson – a historic city south of Lansing
- Mason & Charlotte – established central Michigan communities
From the seat of state government to a Big Ten university, a 517 number is closely tied to the identity of central Michigan.
A Brief History of Area Code 517
Area code 517 was one of the original area codes established in 1947 and once covered much of central and northern Michigan. In 2001, the Saginaw area and northern counties split off into the new 989 code. The 227 overlay was added over the Lansing region in 2021, and 10-digit dialing became mandatory.
Time Zone & Best Time to Call
Numbers in the 517 area code use Eastern Time (ET). The region observes Daylight Saving Time, shifting from EST (UTC-5) to EDT (UTC-4) between March and November each year.
How to Dial Phone Numbers in Area Code 517
Because 517 shares its region under an overlay, the area requires 10-digit dialing on every call.
Calling within the United States or Canada
- 10-digit dialing: Include the area code – 517-XXX-XXXX.
- 11-digit dialing: You can also dial 1-517-XXX-XXXX; the leading 1 is the NANP country code.
Calling from outside the United States
- Format: [exit code] + 1 + 517 + XXX + XXXX
- From the UK, Europe, or most of Asia/Africa: 00 1 517 XXX XXXX
- From any mobile phone worldwide: +1 517 XXX XXXX
Is Area Code 517 a Scam? Safety & Protection Tips
Area code 517 is a legitimate Michigan area code – a call from it is not fraudulent by default. However, scammers frequently spoof local codes like 517, faking the caller ID so their number appears to come from a trusted local line. Neighbor spoofing, which mimics the first six digits of your own number, is especially common.
Common scam tactics linked to this region
| Scam type | What to watch for |
|---|---|
| Government & state-agency impersonation | Callers posing as the IRS, SSA, or a state agency threatening arrest |
| Bank & card fraud alerts | Claims of suspicious activity seeking your account details |
| Student & scholarship scams | Fake tuition or financial-aid calls targeting Michigan State students |
| Utility shut-off threats | Fake Consumers Energy disconnection demands |
How to report, block, and look up 517 callers
- Never share personal or financial details with an unexpected caller, however urgent they sound.
- Block the number using your phone’s built-in call-blocking feature or a reputable call-screening app.
- Look up the number with a trusted reverse phone lookup before returning any call.
- Report it to the FTC at reportfraud.ftc.gov and register at DoNotCall.gov.
Nearby & Related Area Codes in Michigan
Area code 517 shares and borders several other Michigan codes:
- 227 – the overlay that shares central Michigan with 517
- 734 – the Ann Arbor area to the east (see our 734 area code guide)
- 616 & 269 – Grand Rapids and southwest Michigan to the west (see our 616 area code guide)
- 989 – the Saginaw area and central-northern Michigan to the north (see our 989 area code guide)
Explore more codes across the state on our Michigan area codes hub, or browse every prefix in our US area codes directory.
↑ See the complete list of All US Area Codes by State – every area code across all 50 states in one directory.
Explore Neighboring States
Researching area codes just across the state line? Start with these codes in the states that border Michigan:
Frequently Asked Questions About Area Code 517
Where is the 517 area code located?
Area code 517 covers central Michigan, including Lansing, East Lansing, and Jackson. It operates on Eastern Time and is overlaid by area code 227.
What is the difference between 517 and 227?
There is no geographic difference. 227 is an overlay covering the same central-Michigan territory as 517; it was added in 2021 simply to supply more phone numbers.
Is 517 a landline or cell phone area code?
Both. Area code 517 serves landlines, mobile phones, and VoIP numbers throughout central Michigan.
Should I answer a call from an unknown 517 number?
If you are not expecting the call, let it go to voicemail. Legitimate callers leave a message, while spoofed or robocall numbers usually will not. Verify any unfamiliar number with a reverse lookup before calling back.
Related 517 Guides
- Is a 517 call safe? Read Is area code 517 a scam? Spam & safety guide.
- Local coverage: see the Lansing area code guide.
- Worried about spam or robocalls? Browse our Scam Alerts directory.