Area Code Overview

Area code 734 is a geographic telephone area code in Michigan that went into service on December 13, 1997. The geographic regions covered by this area code overlay has a population of approximately 1,215,126.

Overlay and Dialing Rules

Area Code: 734
State: Michigan
Type: General Purpose Code
In Service Date: December 13, 1997
Overlay Complex: 313/679/734
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 734

This area code is ranked 150th out of 363 nationwide in estimated assigned phone numbers. Within the state territory it serves, it is ranked 3rd out of 12.

5,501,000

Estimated Service-Type Mix of Assigned Phone Numbers in Area Code 734

Total assigned 5,501,000

Wireless

2,299,000 assigned

41.79%

Wireline and VoIP

2,519,000 assigned

45.79%

Other / Unclassified

683,000 assigned

12.42%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Area Code 734

Estimated assigned wireless phone numbers: 2,299,000

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

Verizon Wireless 1,100,000 (47.85%)

T-Mobile 749,000 (32.58%)

AT&T Wireless 450,000 (19.57%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Area Code 734

Estimated assigned wireline and VoIP phone numbers: 2,519,000

AT&T 1,065,000 (42.28%)

Onvoy 462,000 (18.34%)

Bandwidth 184,000 (7.30%)

Lumen 163,000 (6.47%)

Comcast Business 117,000 (4.64%)

Spectrum 82,000 (3.26%)

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 75,000 (2.98%)

Peerless Network 73,000 (2.90%)

PAETEC ITEL, LLC 65,000 (2.58%)

TERRA NOVA TELECOM INC. 53,000 (2.10%)

ACD TELECOM, INC. - MI 46,000 (1.83%)

Verizon 37,000 (1.47%)

Other / Unclassified Assigned Numbering in Area Code 734

Estimated assigned other or unclassified phone numbers: 683,000

TELNET WORLDWIDE, INC. 307,000 (44.95%)

AMERICAN MESSAGING SERVICES, LLC 140,000 (20.50%)

TELEPORT COMMUNICATIONS AMERICA, LLC - MI 61,000 (8.93%)

SPOK, INC. 60,000 (8.78%)

CLEAR RATE COMMUNICATIONS, LLC 30,000 (4.39%)

123.NET, LLC 28,000 (4.10%)

TON80 COMMUNICATIONS, LLC 17,000 (2.49%)

FIRST COMMUNICATIONS, LLC 11,000 (1.61%)

BRIGHTSPEED OF MICHIGAN, LLC 10,000 (1.46%)

GRID 4 COMMUNICATIONS, INC. - MI 9,000 (1.32%)

FRACTEL, LLC 8,000 (1.17%)

AIRESPRING, INC. 1,000 (0.15%)

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 734, 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

734 Area Code