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Get a local business phone number in Richmond, MI

Richmond's area code, prefixes and carriers from NANPA records, and how to put a Richmond number in front of your customers.

Area code
586
Exchanges
8NANPA-assigned
Carriers
7
Population
5,905Census 2024 est.

What area code is Richmond, MI?

Richmond city is a Census place in Macomb County, Michigan, with an estimated 5,905 residents in 2024. All 8 exchanges NANPA lists for its rate center are in area code 586. Richmond 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 codes with exchanges in Richmond, MI
Area codeExchanges hereShareIn service sinceOverlay withTime zone
5868100%2001noneEastern

Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.

Who holds Richmond phone exchanges

7 carriers hold the 8 exchanges assigned to Richmond's rate center. Onvoy, Llcv - Mi has the most, with 2. 6 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Richmond can come from any of these blocks; once it is yours, porting lets it move between providers.

Carriers holding exchanges in Richmond, MI
Carrier (NANPA operating company)ExchangesShare
Onvoy, Llcv - Mi225%
Cynergycomm.net, INC. - Mi113%
Omnipoint Communications Midwest Operations, LLC113%
Telnet Worldwide, INC.113%
Teleport Communications America, LLC - Mi113%
Peerless Network of Michigan, LLC - Mi113%
Frontier North, INC. - Mi113%

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.

Richmond phone prefixes

These are the central office codes NANPA records for Richmond. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2006. 2 of the 8 were assigned in 2020 or later.

Prefixes assigned in Richmond, MI
Area codePrefixes (NXX)
586248, 290, 317, 326, 355, 430, 636, 727

Source: NANPA utilized central office code file.

When Richmond's exchanges were assigned

The table groups Richmond's exchanges by the decade NANPA recorded them as assigned.

Richmond, MI: exchanges by decade assigned
Decade assignedExchangesShare
2000s120%
2010s240%
2020s240%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

How local numbers work in Richmond

NANPA ties every exchange to a rate center. For Richmond that is RICHMOND, so a number from one of these exchanges reads as local to people in and around Richmond.

Keeping an existing Richmond number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 586 when you pick it.

Who does business near Richmond

Richmond 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).

Selected industries in the Detroit, MI metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Limited-service restaurants3,76463,82117.0
Physician practices3,62245,65712.6
Full-service restaurants3,19165,66920.6
Law offices2,13015,5657.3
Dental offices1,92116,1278.4
Landscaping services1,7118,2614.8
Residential remodelers1,6215,9243.7
Insurance agencies and brokerages1,52011,5697.6

Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.

Setting up a Richmond business line

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

Porting a number you already use in Richmond is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Detroit, MI metro area, 18 users on RingCentral RingEX Core come to $540.00 a month and on Ooma Office Pro $449.10, at month-to-month list prices checked September 28, 2026. Callata comes to $359.00 a month for 18 users ($99 a month with 5 users included, then $20 per additional user), below both.

Monthly list price for an 18-person team
Provider (plan)Pricing basisPer monthPer 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 Richmond, MI?

586. All exchanges NANPA lists for Richmond are in 586.

How many phone companies have exchanges in Richmond?

7, holding 8 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Richmond 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 Richmond?

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).