CallataGuidesGet a local business phone number in New Haven, MI
New Haven's area code, prefixes and carriers from NANPA records, and how to put a New Haven number in front of your customers.
- Area code
- 586
- Exchanges
- 11NANPA-assigned
- Carriers
- 7
- Population
- 6,711Census 2024 est.
What area code is New Haven, MI?
With 6,711 residents in the Census 2024 estimate, New Haven sits in Macomb County, Michigan. All 11 exchanges NANPA lists for its rate center are in area code 586. New Haven is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 586 are dialed as seven digits and toll calls as 1 plus ten digits.
| Area code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 586 | 11 | 100% | 2001 | none | Eastern |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
New Haven exchanges by carrier
7 carriers hold the 11 exchanges assigned to New Haven's rate center. Level 3 Communications, LLC - Mi has the most, with 3. 10 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in New Haven can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Level 3 Communications, LLC - Mi | 3 | 27% |
| Metropcs, INC. | 2 | 18% |
| Onvoy, Llcv - Mi | 2 | 18% |
| Omnipoint Communications Midwest Operations, LLC | 1 | 9.1% |
| Bandwidth.com CLEC, LLC - Mi | 1 | 9.1% |
| Teleport Communications America, LLC - Mi | 1 | 9.1% |
| Michigan Bell Tel CO | 1 | 9.1% |
Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.
New Haven phone prefixes
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to New Haven. The earliest assignment date recorded in the file for these codes is 2006. 1 of the 11 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 586 | 244, 270, 271, 277, 304, 315, 339, 646, 701, 749, 928 |
Source: NANPA utilized central office code file.
When New Haven's exchanges were assigned
Assignment dates show when each block of New Haven numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 1 | 17% |
| 2010s | 4 | 67% |
| 2020s | 1 | 17% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
Rate centers and local calling in New Haven
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. New Haven's numbers are rated to the NEW HAVEN rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a New Haven number.
If your business already has a New Haven number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Who does business near New Haven
New Haven is part of the Detroit-Warren-Dearborn, MI metro area, home to 4.4 million people in 2024. County Business Patterns counted 102,430 business establishments in the Detroit, MI metro area in 2023, employing 1,846,717 people. The largest sectors by establishment count are retail trade (14,016), health care and social assistance (13,890), and professional, scientific, and technical services (11,783).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 3,764 | 63,821 | 17.0 |
| Physician practices | 3,622 | 45,657 | 12.6 |
| Full-service restaurants | 3,191 | 65,669 | 20.6 |
| Law offices | 2,130 | 15,565 | 7.3 |
| Dental offices | 1,921 | 16,127 | 8.4 |
| Landscaping services | 1,711 | 8,261 | 4.8 |
| Residential remodelers | 1,621 | 5,924 | 3.7 |
| Insurance agencies and brokerages | 1,520 | 11,569 | 7.6 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A New Haven number on Callata
Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.
If you already have a number in New Haven, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.
Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.
The comparison below uses 18 users, the rounded average establishment size in the Detroit, MI metro area. At list prices checked September 28, 2026, that is $449.10 a month on Ooma Office Pro and $540.00 on RingCentral RingEX Core. On Callata the same 18 people cost $359.00 a month, less than either per-seat plan.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $359.00 | $4,308.00 |
| Quo (Starter) | $19.00 per user | $342.00 | $4,104.00 |
| Nextiva (Core) | $23.00 per user | $414.00 | $4,968.00 |
| Ooma (Office Pro) | $24.95 per user | $449.10 | $5,389.20 |
| Dialpad (Standard) | $27.00 per user | $486.00 | $5,832.00 |
| RingCentral (RingEX Core) | $30.00 per user | $540.00 | $6,480.00 |
Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.
Frequently asked questions
What area code is New Haven, MI?
586. All exchanges NANPA lists for New Haven are in 586.
How many phone companies have exchanges in New Haven?
7, holding 11 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing New Haven business number?
Yes. Porting an existing number to Callata is free. Texting from it starts after carrier registration (10DLC), a one-time $49 fee.
How much is a business phone line in New Haven?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 18 users come to $359.00 a month. For comparison, 18 users on RingCentral RingEX Core list at $540.00 a month (checked September 28, 2026).