Area code 586

Where area code 586 is

NANPA lists 586 as an in-service geographic area code for Michigan, first put into service on September 22, 2001. It is not part of an overlay, so every number in its territory starts with 586. It is in the Eastern time zone. The places with the most assigned exchanges include Mount Clemens, Warren, Roseville, Center Line, and Utica. By population, its largest named places are Warren, Roseville, Washington, Mount Clemens, and New Baltimore.

Cities and towns in area code 586

586 holds 7.9% of the 6,882 central office codes assigned in Michigan, the 7th most of the state's 13 codes. 11 Census places could be matched to rate centers with 586 exchanges; the most populous are Warren (138,000), Roseville (47,047), Washington (29,103), and Mount Clemens (15,480). Each place page lists the exact prefixes and carriers for that town.

Dialing 586 numbers

According to NANPA's dialing-plan data, local calls within 586 are dialed as seven digits and toll calls as 1 plus ten digits. Seven-digit local dialing is still permitted here, but customers calling from other area codes, and every mobile contact list, use all ten digits.

Phone companies in area code 586

30 carriers hold the 546 central office codes assigned in 586. Cellco Partnership d/b/a Verizon Wireless - Mi has the most, with 132 (24%). 387 of the codes (71%) are pooled, meaning the code holder shares blocks of 1,000 numbers with other carriers instead of using all 10,000 itself. The code holder is not necessarily the carrier serving a given number today, since numbers can be ported between providers.

Local calling areas in 586

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 586 has codes in 11 rate centers. Rate center names in the file are abbreviations; where one matches a Census place, the table links to that city's local-number page.

Number supply in 586

An area code has 800 possible central office codes that start with 2 through 9, a few of which are reserved (such as N11 service codes and 555). 546 are assigned in 586, 68% of 800. 36 were assigned in 2020 or later.

A local 586 number on Callata

Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.

Porting a number you already use in area code 586 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.