517 area code
Lansing area, Eastern Time.Area code 517 covers Lansing, Jackson, Howell and 75 more places in Michigan, on Eastern Time.
Right now in Lansing
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer)
Calling hours: Every day, 9 AM to 9 PM (Michigan law)
Small talk
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Where 517 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 517 has 78. Each one's share is how many 517 numbers start there. Its biggest metro area is Detroit-Warren-Dearborn, MI.
- Lansing27%
- Jackson10%
- Howell4%
- Adrian4%
- Charlotte2%
- Hillsdale2%
- Coldwater2%
- Holt2%
Also: Dimondale, Albion, Fowlerville, Mason, Dansville, Grand Ledge, Eaton Rapids, Portland, Tecumseh, DeWitt, Hudson, Jonesville + 58 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 517 number?
Sales calls to homes and cell phones have legal hours, set by Michigan law. Hold every 517 number to them, since you can't tell a work line from a personal cell.
What applies to 517Every day, 9 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
- Michigan lawEvery day, 9 AM to 9 PMIn a harassment statute that needs intent to annoy.MCL 750.540e(1)(f) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
The 517 area code
517 is one of the original area codes from 1947, and 989 was later split off from it. Local calls can still be dialed with 7 digits.
- 1947517 starts
- 2001989 split off
Source: NANPA area code database
Calling a list of 517 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
517 area code FAQ
What area code is 517?
517 is a Michigan area code for Lansing, Jackson, Howell, Adrian and 74 more places.
What time zone is the 517 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
What are the calling hours for 517 numbers?
Every day, 9 AM to 9 PM, local time, under Michigan law.
When did the 517 area code start?
In 1947: it's one of the original area codes.
Calling 517 numbers? Reach more of them.
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