Area Code Overview

Area code 586 is a geographic telephone area code in Michigan that went into service on September 22, 2001. The geographic regions covered by this area code overlay has a population of approximately 886,175.

Overlay and Dialing Rules

Area Code: 586
State: Michigan
Type: General Purpose Code
In Service Date: September 22, 2001
Overlay Complex: 586
Local Dialing Plan: This area does not require you to dial the area code when calling locally.

Estimated Number of Assigned Phone Numbers in Area Code 586

This area code is ranked 199th out of 363 nationwide in estimated assigned phone numbers. Within the state territory it serves, it is ranked 7th out of 12.

4,532,000

Estimated Service-Type Mix of Assigned Phone Numbers in Area Code 586

Total assigned 4,532,000

Wireless

2,411,000 assigned

53.20%

Wireline and VoIP

1,588,000 assigned

35.04%

Other / Unclassified

533,000 assigned

11.76%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Area Code 586

Estimated assigned wireless phone numbers: 2,411,000

Numbers may later be ported to another carrier, but this chart reflects original number assignment, not current subscriber share.

Verizon Wireless 1,345,000 (55.79%)

T-Mobile 629,000 (26.09%)

AT&T Wireless 437,000 (18.13%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Area Code 586

Estimated assigned wireline and VoIP phone numbers: 1,588,000

AT&T 729,000 (45.91%)

Onvoy 292,000 (18.39%)

Bandwidth 120,000 (7.56%)

Comcast Business 110,000 (6.93%)

Lumen 78,000 (4.91%)

Peerless Network 45,000 (2.83%)

PAETEC ITEL, LLC 42,000 (2.64%)

Spectrum 41,000 (2.58%)

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 31,000 (1.95%)

Commio 24,000 (1.51%)

ACD TELECOM, INC. - MI 22,000 (1.39%)

TERRA NOVA TELECOM INC. 20,000 (1.26%)

Other / Unclassified Assigned Numbering in Area Code 586

Estimated assigned other or unclassified phone numbers: 533,000

AMERICAN MESSAGING SERVICES, LLC 270,000 (50.66%)

SPOK, INC. 90,000 (16.89%)

TELNET WORLDWIDE, INC. 74,000 (13.88%)

CLEAR RATE COMMUNICATIONS, LLC 21,000 (3.94%)

TELEPORT COMMUNICATIONS AMERICA, LLC - MI 20,000 (3.75%)

123.NET, LLC 14,000 (2.63%)

GRID 4 COMMUNICATIONS, INC. - MI 14,000 (2.63%)

TON80 COMMUNICATIONS, LLC 10,000 (1.88%)

FIRST COMMUNICATIONS, LLC 8,000 (1.50%)

FRACTEL, LLC 8,000 (1.50%)

STRATUS NETWORKS 2,000 (0.38%)

CYNERGYCOMM.NET, INC. - MI 1,000 (0.19%)

Cities and Towns in Area Code 586

Armada, Michigan Center Line, Michigan Mount Clemens, Michigan New Baltimore, Michigan New Haven, Michigan Richmond, Michigan Romeo, Michigan Roseville, Michigan Utica, Michigan Warren, Michigan Washington, Michigan

How These Figures Were Built

These figures are estimates based on public phone-number assignment records. They are meant to show the likely mix of assigned phone numbers associated with area code 586, not live customer counts.

Some providers may have assigned phone numbers tied to this area code even if they do not actively market or sell service locally. These figures reflect public number-assignment records, not confirmed local service availability.

They also do not reflect number portability at the individual phone-number level, so some numbers may now be used on a different network or by a different provider than the original assignment records suggest.

Population data and locality matching provided by GeoNames.

Last refreshed: April 15, 2026 6:22 pm