Area Code Overview

Area code 248 is a geographic telephone area code in Michigan that went into service on May 10, 1997. The geographic regions covered by this area code overlay has a population of approximately 1,948,603.

Overlay and Dialing Rules

Area Code: 248
State: Michigan
Type: General Purpose Code
In Service Date: May 10, 1997
Overlay Complex: 248/947
Local Dialing Plan: This area does require you to dial the area code when calling locally.

Estimated Number of Assigned Phone Numbers in Area Code 248

This area code is tied for 72nd out of 363 nationwide in estimated assigned phone numbers. Within the state territory it serves, it is ranked 2nd out of 12.

6,344,000

Estimated Service-Type Mix of Assigned Phone Numbers in Area Code 248

Total assigned 6,344,000

Wireless

2,507,000 assigned

39.52%

Wireline and VoIP

3,143,000 assigned

49.54%

Other / Unclassified

694,000 assigned

10.94%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Area Code 248

Estimated assigned wireless phone numbers: 2,507,000

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

Verizon Wireless 940,000 (37.50%)

T-Mobile 874,000 (34.86%)

AT&T Wireless 693,000 (27.64%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Area Code 248

Estimated assigned wireline and VoIP phone numbers: 3,143,000

AT&T 1,786,000 (56.82%)

Onvoy 328,000 (10.44%)

Bandwidth 226,000 (7.19%)

Lumen 202,000 (6.43%)

Comcast Business 143,000 (4.55%)

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 95,000 (3.02%)

PAETEC ITEL, LLC 94,000 (2.99%)

Verizon 50,000 (1.59%)

Peerless Network 43,000 (1.37%)

TERRA NOVA TELECOM INC. 41,000 (1.30%)

Spectrum 40,000 (1.27%)

ACD TELECOM, INC. - MI 34,000 (1.08%)

Other / Unclassified Assigned Numbering in Area Code 248

Estimated assigned other or unclassified phone numbers: 694,000

AMERICAN MESSAGING SERVICES, LLC 190,000 (27.38%)

TELNET WORLDWIDE, INC. 154,000 (22.19%)

SPOK, INC. 130,000 (18.73%)

TELEPORT COMMUNICATIONS AMERICA, LLC - MI 70,000 (10.09%)

123.NET, LLC 45,000 (6.48%)

CLEAR RATE COMMUNICATIONS, LLC 43,000 (6.20%)

GRID 4 COMMUNICATIONS, INC. - MI 36,000 (5.19%)

FIRST COMMUNICATIONS, LLC 17,000 (2.45%)

HD CARRIER LLC 3,000 (0.43%)

TON80 COMMUNICATIONS, LLC 3,000 (0.43%)

AHOI LLC 1,000 (0.14%)

CYNERGYCOMM.NET, INC. - MI 1,000 (0.14%)

Cities and Towns in Area Code 248

These geographic regions are also served by area code 947.

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 248, 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