Area code 847

About area code 847

Area code 847 is a geographic area code in Illinois, in service since January 20, 1996, according to the North American Numbering Plan Administrator (NANPA). It is an overlay: 847 and 224 cover the same territory, so neighbors on the same street can have different area codes. It is in the Central time zone. The places with the most assigned exchanges include Northbrook, Roselle, Arlington Heights, Elk Grove, and Waukegan. By population, its largest named places are Wheeling, Elgin, Palatine, Elk Grove, and Waukegan.

Cities and towns in area code 847

847 holds 8.8% of the 8,977 central office codes assigned in Illinois, the 6th most of the state's 17 codes. 42 Census places could be matched to rate centers with 847 exchanges; the most populous are Wheeling (154,000), Elgin (115,000), Palatine (111,000), and Elk Grove (92,996). Each place page lists the exact prefixes and carriers for that town.

Ten-digit and seven-digit dialing in 847

According to NANPA's dialing-plan data, local calls within 847 are dialed as 1 plus ten digits and toll calls as 1 plus ten digits. Because local calls need the area code, business cards, signage and website copy should always show the full ten-digit number.

Who holds 847 exchanges

21 carriers hold the 786 central office codes assigned in 847. Illinois Bell Tel CO has the most, with 361 (46%). 408 of the codes (52%) 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.

Where 847 numbers are rated

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 847 has codes in 46 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.

How full is area code 847?

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). 786 are assigned in 847, 98% of 800. 6 were assigned in 2020 or later.

Getting a 847 number for your business

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.

Porting a number you already use in area code 847 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.