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Area code 517

Area code 517 serves Michigan, including Lansing, Jackson and Adrian (Eastern time). It has been in service since January 1, 1947.

Numbers starting with 517 drew 1,670 reports to the FTC from Aug 14, 2026 to Nov 11, 2026 and 552 complaints to the FCC since November 2023. The number on your screen can be faked, so a 517 number proves nothing about where a call came from.

Location
Michigan(ann Arbor, MI Pmsa) and (detroit, MI Pmsa)
Time zone
Eastern
In service since
January 1, 1947
Overlay
None: the only code for its area
Local calls
Dial 7 digits
Exchanges in use
616 of 792held by 59 carriers
Projected to run out
2Q 2054NANPA forecast 2026.2

Complaints about 517 numbers

Reports where the number on the consumer's caller ID (or, for the FCC, the number the caller asked them to call back) starts with 517. These are counts of what people reported; the agencies do not verify them.

FTC reports, Aug 14, 2026 to Nov 11, 2026

1,670

FCC complaints since November 2023

552

Different 517 numbers reported

2,006

FCC complaints naming a 517 number, by month

November 2023 to October 2026. Source: FCC Consumer Complaints Data.

Show as a table
MonthComplaints
November 202310
December 202322
January 20244
February 202425
March 202411
April 202427
May 202419
June 202414
July 202414
August 202415
September 202413
October 202429
November 202425
December 20248
January 20257
February 202515
March 202513
April 202510
May 202511
June 20255
July 202514
August 202515
September 20258
October 20250
November 202516
December 202512
January 20264
February 202612
March 20269
April 202626
May 202610
June 202614
July 202618
August 202620
September 202619
October 202640

What people said 517 calls were about

Subjects picked in FTC reports, August 14, 2026 to November 11, 2026. 1,063 of 1,670 reports were robocalls.

Show as a table
SubjectReports
Other702
Calls pretending to be government, businesses, or family and friends244
Medical and prescriptions173
Reducing your debt (credit cards, mortgage, student loans)132
Dropped call or no message129
Energy, solar, and utilities43

Most reported 517 numbers

Numbers with at least five reports from three or more places in the last twelve months. Many of them are likely spoofed.

Places served by 517

NANPA lists 78 rate centers for 517. A rate center is the town or district a block of numbers is tied to for billing; sorted here by how many exchanges each holds.
  • Lansing164
  • Jackson63
  • Adrian27
  • Howell27
  • Charlotte15
  • Hillsdale15
  • Coldwater14
  • Holt13
  • Dimondale12
  • Albion11
  • Fowlerville11
  • Mason11
  • Dansville8
  • Grand Ledge8
  • Eaton Rapids7
  • Portland7
  • Tecumseh7
  • De Witt6
  • Hudson6
  • Jonesville6
  • Leslie6
  • Onondaga6
  • Addison5
  • Blissfield5
Show all 78 rate centers

Litchfield, Munith, Potterville, Stockbridge, Tekonsha, Burlington, Clinton, Homer, Laingsburg, Morenci, Nashville, Onsted, Parma, Reading, Rives Junction, Sunfield, Webberville, Williamston, Bath, Britton, Bundy Hill, Clarklake, Fitchburg, Grass Lake, Montgomery, Mulliken, Shaftsburg, Vermontville, Allen, Bell Oak, Bronson, Brooklyn, Cambria, Camden, Clayton, Coldwater Lake, Concord, Frontier, Hanover, Mosherville, Napoleon, North Adams, Osseo, Perry, Prattville, Quincy, Ransom, Springport, Tipton, Union City, Waldron, Deerfield, Ogden Center, Sand Creek.

Phone companies holding 517 exchanges

Each exchange (the three digits after the area code) is assigned to one carrier. 67% of these exchanges are pooled: their numbers are handed out in blocks of 1,000 to other carriers, so the holder below is not always the company serving a given number.

Exchanges held, top 8 of 59 carriers

NANPA central office code assignments, file of November 11, 2026.

Show as a table
Carrier (legal name)Exchanges
Michigan Bell Tel CO105
Cellco Partnership dba Verizon Wireless - MI61
Acd Telecom, Inc. - MI56
Omnipoint Communications Midwest Operations, LLC47
New Cingular Wireless PCS, LLC - IL40
Frontier North, Inc. - MI30
Level 3 Communications, LLC - MI30
Onvoy, Llcv - MI30

When today's 517 exchanges were assigned

Exchanges still assigned, by year of assignment. Exchanges returned since are not counted.

Show as a table
YearExchanges
200154
200273
20033
200412
200512
200610
20077
20087
20096
201010
20112
20122
20133
20145
20158
20165
20177
20183
201910
20204
202123
20227
202312
20245
20253
20266

Check a 517 number

A check shows the carrier and rate center of the number's exchange and every FTC and FCC report about that exact number. Why the number on screen can be fake.

Other area codes in Michigan

NANPA area code database and central office code file of November 11, 2026; FCC complaints November 1, 2023 to November 11, 2026; FTC reports August 14, 2026 to November 11, 2026. How the data is used.

Official sources (7)Show