313 Area Code
The 313 area code is serving Detroit and most of its closest suburbs in Wayne County, Michigan.
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The 313 area code is serving Detroit and most of its closest suburbs in Wayne County, Michigan.
Federal Data
State Data
County Data
City Data
Area code 313 covers Detroit and most of its closest suburbs in Wayne County, Michigan.
Area code 679 is scheduled to be in-service in an overlay with 313 on November 7, 2025. A permissive ten-digit dialing period for 313 is scheduled for April 7, 2025 through October 7, 2025, after which time ten-digit dialing will be required.
Area code 313 is a general purpose code which was placed in service on January 1, 1947.
Our Michigan phone number lookup service will analyze the three-digit prefix of any 313 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Michigan geographic region, and local calling area associated with the phone number.
Phone numbers follow the following structure under the North American Numbering Plan:
Understanding the area code can help you determine if a call is local to your area. However, keep in mind that due to mobile number portability and VoIP services, the caller may be anywhere in the United States, so it’s best to search for the most recent phone number details.
| Company | Number of Prefixes |
|---|---|
| MICHIGAN BELL TEL CO | 219 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 56 |
| OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 50 |
| SPRINT SPECTRUM, L.P. | 48 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 36 |
| LEVEL 3 COMMUNICATIONS, LLC - MI | 10 |
| BANDWIDTH.COM CLEC, LLC - MI | 9 |
| XO COMMUNICATIONS SERVICES, INC. - MI | 9 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 8 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 8 |
| ONVOY, LLCV - MI | 6 |
| COMCAST IP PHONE, LLC | 5 |
| GLOBAL CROSSING TELEMANAGEMENT, INC. - MI | 5 |
| METROPCS, INC. | 4 |
| PHONE MICHIGAN - MI | 4 |
| TELNET WORLDWIDE, INC. | 4 |
| AMERICAN MESSAGING SERVICES, LLC | 3 |
| AT&T - LOCAL | 3 |
| LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI | 3 |
| PEERLESS NETWORK OF MICHIGAN, LLC - MI | 3 |
| TALK AMERICA INC. - MI | 2 |
| US XCHANGE OF MICHIGAN LLC DBA CHOICE ONE COMM MI | 2 |
| AIRUS, INC. - MI | 1 |
| AT&T CORP. | 1 |
| BROADWING COMMUNICATIONS, LLC - MI | 1 |
| CLEAR RATE COMMUNICATIONS, INC. - MI | 1 |
| MICHTEL COMMUNICATIONS LLC - MI | 1 |
| NUSO, LLC | 1 |
| RCLEC, INC. - MI | 1 |
| USA MOBILITY WIRELESS, INC. | 1 |
| YMAX COMMUNICATIONS CORP. - MI | 1 |
Carrier names have been updated from their original FCC assignments to reflect current companies following mergers, acquisitions, and rebranding. Updates were determined using AI-assisted research and may not be accurate or reflect up to date changes. This data is provided without warranties of accuracy or completeness.
| Rate Center | Number of Prefixes |
|---|---|
| DETROITZN5 | 162 |
| DETROITZN6 | 116 |
| DETROITZN1 | 105 |
| DETROITZN2 | 52 |
| DETROITZN4 | 40 |
| DETROITZN3 | 31 |
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