Area code 313 · Detroit, Michigan
Get a 313 phone number for your business
313 is Detroit's code, and a narrow one. It holds the city, the enclaves of Hamtramck and Highland Park, and a band of inner Wayne County suburbs: Dearborn, Dearborn Heights, Redford, Allen Park, Harper Woods and the Grosse Pointes. Past that band the metro runs on other codes, so 313 identifies the city rather than the region around it. We provision numbers on a network we own, which is why one costs $1.00 a month and is not tied to a contract.
Our Southfield office is not in 313
IZT Cloud has an office in Southfield, Michigan. Southfield is in Oakland County and is served by 248 and its 947 overlay, so it is not a 313 address. It borders Detroit along Eight Mile Road, and 313 starts on the Detroit side of that road. We would rather tell you where the line runs than claim to be local everywhere we sell. Numbers are provisioned against rate centers, and the Southfield rate center sits in 248, not 313.
What area code 313 covers
313 covers Detroit itself along with a band of inner Wayne County suburbs, the Grosse Pointes among them. Beyond it the metro runs on other codes, 734, 248, 947 and 586 among them. Eastern time throughout, with daylight saving observed.
- Detroit
- Redford
- Dearborn
- Dearborn Heights
- Allen Park
- Highland Park
- Grosse Pointe
- Hamtramck
- Harper Woods
Detroit's code, not the metro's
313 is not a metro-wide code. Warren and Sterling Heights are 586, Livonia and Canton are 734, Royal Oak and Troy are 248 with 947 over them, each of them metro Detroit and none of them 313. The code takes in Detroit and a band of inner Wayne County suburbs around it, and the rest of the metro sits elsewhere. On that ground 679 is issued over identical territory, so local calls take ten digits.
What the 313 part actually is
A North American number has four parts. The area code is the second, and it is the one that tells a caller roughly where you are before they have spoken to anyone.
- +1
- Country code North American Numbering Plan
- 313
- Area code Called the NPA in carrier systems
- 555
- Exchange The NXX, a block within the area code
- 0147
- Line number The individual line on that block
How to get a 313 number
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Tell us how many you need
Give us the area code and a quantity. We search live inventory and come back with what is actually available, including any repeating or sequential patterns worth having.
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Point it wherever you want
Route it to a seat, a ring group, an auto attendant, or straight down a SIP trunk into a PBX you already own. A number is not welded to one product on our network.
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Register the 911 address
Every number needs a validated street address so an emergency call reaches the right dispatcher. That is a legal requirement rather than an upsell, and it takes about a minute in the portal.
Already have a 313 number?
Bring it. Porting a local number in is $5.00 once and the number itself does not change. Numbers port out again just as freely if you ever leave, which is worth saying because not every carrier makes that straightforward.
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You sign the LOA
A letter of authorization proves the number is yours to move. We prepare it and send it over; you check the details and sign.
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We request the port
The request goes to your current carrier with a copy of your most recent bill, which is what they match the account details against.
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They confirm a date
The losing carrier accepts the request and returns a firm order commitment date. If they reject it, it is almost always a mismatched address or account number, and we fix it and resubmit.
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The number cuts over
On the agreed date the number starts ringing on our network. Your old service stays live until that moment, so there is no window where calls go nowhere.
Questions about 313 numbers
- Can I get a 313 phone number?
- Yes. We source local numbers in every US area code, and 313 is $1.00 per number per month with no contract. You choose the number, we provision it, and it is on your account without a wait in most cases.
- Where does area code 313 cover?
- 313 covers Detroit itself along with a band of inner Wayne County suburbs, the Grosse Pointes among them. Beyond it the metro runs on other codes, 734, 248, 947 and 586 among them. Eastern time throughout, with daylight saving observed.
- Do I need an office in Michigan to use a 313 number?
- No. A 313 number works from anywhere, and your team can be remote or spread across several states. What the number buys you is a local presence for the people calling you, which matters because a lot of people will not pick up an unfamiliar out-of-state number.
- Why isn't Southfield a 313 number?
- Southfield is in Oakland County, and Oakland County is 248 with 947 over it, a different numbering area from Detroit's even though the two meet along Eight Mile Road. There the city limit and the code boundary run together, so Ferndale and Oak Park on the far side are 248 as well. A 313 line reaches all of them without difficulty.
- Can I move my existing 313 number over?
- Yes. Porting a local number in is $5.00 once and the number does not change. We prepare the paperwork and coordinate with your current carrier, and your existing service stays live right up to the agreed cutover.
- What does a 313 number cost in total?
- The number is $1.00 per month. If you also need a phone system to answer it on, seats start at $19.95 per user per month with every feature included at every tier. If you already run a PBX, point a SIP trunk at the number instead and pay per minute.
Get a 313 number
Numbers are $1.00 a month on a network we own and operate. Price it yourself, or ask us to check what is available.
No contract, no setup fee, and your number ports out again if you ever leave.