Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — AREA-CODE/872

872 area code

Area code 872 is in Illinois. It covers Chicago and Burnham: 84 ZIP codes in Cook County. Local time there is , Central Time. In service since 2009 as an overlay: it covers the same area as 312 and 773, so a number from there can have any of them.

Time zone
Central
Largest city
Chicago
Overlays
312, 773
In service since
2009
Rate centres
11
Prefixes assigned
279 (2,790,000 numbers)

Who calls from a 872 number

NANPA records the carrier each block of 872 numbers is assigned to. Of the 2.7 million 872 numbers assigned, 57% are with cable, internet-calling, business and other carriers (Onvoy and Bandwidth); 42% with mobile carriers (T-Mobile, AT&T Mobility and Verizon Wireless); 1% with local phone companies.

That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.

Carriers holding the most 872 numbers
CarrierKindShare
OnvoyCable, VoIP, other26%
T-MobileMobile24%
BandwidthCable, VoIP, other14%
AT&T MobilityMobile12%
Verizon WirelessMobile3%
Boost MobileMobile2%

An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.

Places in area code 872

The 1 place with a telephone rate centre of its own using 872, largest first. Each links to its ZIP codes.

Places in area code 872
PlaceZIP codesPopulation
Chicago, IL 84 2,711,226

Nearby places using 872

These places have no rate centre of their own in NANPA's records; the nearest one uses 872. Near an area-code boundary that can be wrong for part of a town.

ZIP codes in area code 872

84 ZIP codes in 1 town, by the town each is mailed to, largest first. Each links to its own page.

Where 872 numbers are issued

NANPA's rate centres with the most 872 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.

Rate centres using area code 872
Rate centrePlacePrefixes
CHICGOZN01 Chicago 39
CHICGOZN03 Chicago 36
CHICGOZN04 Chicago 32
CHICGOZN07 Chicago 30
CHICGOZN08 Chicago 30
CHICGOZN02 Chicago 27

Counties

The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.

Which code covers where you are now? What area code am I in? answers from your location.

Questions about area code 872

Where is area code 872?

Area code 872 is in Illinois. It covers Chicago and Burnham: 84 ZIP codes in Cook County.

What ZIP codes are in area code 872?

84 ZIP codes, by the town each is mailed to: Chicago (84, 60601 to 60701). The full list is on this page.

What time zone is area code 872 in?

Central time.

Is a 872 number a mobile or a landline?

It can be either. 42% of 872 numbers are assigned to mobile carriers and 1% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.

What area codes overlay 872?

312 and 773. They cover the same area as 872, so a new number there can be given any of them.

Does a 872 number mean the caller is in Illinois?

Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 872 call can come from anywhere.

Other area codes in Illinois

All 17 Illinois area codes, by area, with the cities each covers

Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.

Cite this page

zipcodes.pro. “Area code 872.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/872

Underlying data is public domain or openly licensed — sources, vintages and licences.