Detroit, Michigan Area Codes & Phone Number Distribution

Estimated Number of Assigned Phone Numbers in Detroit, Michigan

6,624,000

In Detroit, Michigan, wireless numbers account for 46.4% of assigned numbers, above the statewide average of 38.0%. Compared with the state overall, Detroit has a more concentrated wireless assignment mix. Detroit is served by 5 area codes, more than the typical Michigan locality, because it sits in an overlay area where multiple area codes share the same geographic region.

Area Codes Used by Detroit, Michigan

248 313 679 734 947

Estimated Service-Type Mix of Assigned Phone Numbers in Detroit, Michigan

Total assigned 6,624,000

Wireless

3,072,000 assigned numbers

46.38%

Wireline and VoIP

3,017,000 assigned numbers

45.55%

Other / Unclassified

535,000 assigned numbers

8.08%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Detroit, Michigan

Estimated assigned wireless phone numbers: 3,072,000

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

T-Mobile 1,881,000 (61.23%)

AT&T Wireless 668,000 (21.74%)

Verizon Wireless 523,000 (17.02%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Detroit, Michigan

Estimated assigned wireline and VoIP phone numbers: 3,017,000

AT&T 1,629,000 (53.99%)

Onvoy 451,000 (14.95%)

Bandwidth 381,000 (12.63%)

Comcast Business 112,000 (3.71%)

Lumen 110,000 (3.65%)

PAETEC ITEL, LLC 85,000 (2.82%)

Spectrum 78,000 (2.59%)

Peerless Network 57,000 (1.89%)

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 45,000 (1.49%)

Commio 15,000 (0.50%)

WOW! INTERNET, CABLE AND PHONE 12,000 (0.40%)

Vonage 10,000 (0.33%)

Other / Unclassified Assigned Numbering in Detroit, Michigan

Estimated assigned other or unclassified phone numbers: 535,000

AMERICAN MESSAGING SERVICES, LLC 240,000 (44.86%)

SPOK, INC. 130,000 (24.30%)

TELNET WORLDWIDE, INC. 62,000 (11.59%)

TELEPORT COMMUNICATIONS AMERICA, LLC - MI 41,000 (7.66%)

CLEAR RATE COMMUNICATIONS, LLC 13,000 (2.43%)

123.NET, LLC 12,000 (2.24%)

FIRST COMMUNICATIONS, LLC 8,000 (1.50%)

GRID 4 COMMUNICATIONS, INC. - MI 8,000 (1.50%)

FRACTEL, LLC 5,000 (0.93%)

HD CARRIER LLC 5,000 (0.93%)

STRATUS NETWORKS 3,000 (0.56%)

FIVE9, INC. 2,000 (0.37%)

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 Detroit, Michigan, not live customer counts.

Some providers may have assigned phone numbers tied to this locality 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.