Cities in area code 847

46 localities · NANPA data, current as of July 28, 2026.

Which places use area code 847? 46 rate centers in Illinois, the biggest being Northbrook, Roselle, Arlington Heights. Data below is NANPA's official prefix-to-rate-center mapping.

Northbrook, Roselle, Arlington Heights, Elk Grove, Waukegan, Des Plaines, Wheeling and Skokie hold the largest prefix inventories; and 37 smaller communities down to single-prefix localities. Each locality below links to its rate-center page with the full prefix list.

46 of the localities fall within FCC top-100 metropolitan statistical areas; the rest are smaller communities.

46 of these localities are also reachable through other area codes — overlay territory where the same place answers to several codes.

All of the code's territory keeps Central time.

Remember that people keep numbers when they relocate, so a 847 number is a where-it-was-issued fact, not a where-they-are fact.

FAQ

What is the biggest city in area code 847?

Northbrook holds the most active prefixes (122), making it the code's largest numbering locality.

How many places does 847 cover?

46 rate centers in Illinois hold active 847 prefixes, from Northbrook down to communities with a single prefix.

Does a 847 number guarantee the caller lives in one of these places?

No — the tables show where number blocks were issued. Porting and VoIP let people keep or acquire numbers anywhere.