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zipcodes.pro — AREA-CODE/274

274 area code

Area code 274 is in Wisconsin. It covers Green Bay, Sheboygan, Manitowoc and 37 other places: 49 ZIP codes in Brown, Sheboygan, Winnebago and 10 other counties. Local time there is , Central Time. In service since 2023 as an overlay: it covers the same area as 920, so a number from there can have either code.

Time zone
Central
Largest city
Green Bay
Overlays
920
In service since
2023
Rate centres
25
Prefixes assigned
29 (290,000 numbers)

Who calls from a 274 number

NANPA records the carrier each block of 274 numbers is assigned to. Of the 113,000 274 numbers assigned, 50% are with cable, internet-calling, business and other carriers (Onvoy and Ahoi); 50% with mobile carriers (T-Mobile, AT&T Mobility and Lte Wireless).

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 274 numbers
CarrierKindShare
OnvoyCable, VoIP, other33%
T-MobileMobile21%
AT&T MobilityMobile10%
Lte WirelessMobile9%
Verizon WirelessMobile7%
AhoiCable, VoIP, other4%

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 274

The 25 places with a telephone rate centre of their own using 274, largest first. Each links to its ZIP codes.

Places in area code 274
PlaceZIP codesPopulation
Green Bay, WI 12 106,253
Sheboygan, WI 3 49,645
Manitowoc, WI 2 34,620
Neenah, WI 2 27,336
Two Rivers, WI 1 11,231
Ripon, WI 1 7,772
New London, WI 1 7,726
Lake Mills, WI 1 6,470
Columbus, WI 1 5,488
Omro, WI 1 3,642
Algoma, WI 1 3,228
Kewaunee, WI 1 2,806
Luxemburg, WI 1 2,737
Denmark, WI 1 2,558
Winneconne, WI 1 2,511
Wautoma, WI 1 1,817
Random Lake, WI 1 1,575
Oakfield, WI 1 1,182
Rosendale, WI 1 853
Cambria, WI 1 795
Casco, WI 1 561
Neshkoro, WI 1 470
Egg Harbor, WI 1 343
Collins, WI 1 249
Tisch Mills, WI 1 —

Nearby places using 274

These places have no rate centre of their own in NANPA's records; the nearest one uses 274. Near an area-code boundary that can be wrong for part of a town.

ZIP codes in area code 274

49 ZIP codes in 34 towns, by the town each is mailed to, largest first. Each links to its own page.

Where 274 numbers are issued

NANPA's rate centres with the most 274 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.

Rate centres using area code 274
Rate centrePlacePrefixes
GREEN BAY Green Bay 4
MANITOWOC Manitowoc 2
ALGOMA Algoma 1
CAMBRIA Cambria 1
CASCO Casco 1
COLLINS Collins 1

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 274

Where is area code 274?

Area code 274 is in Wisconsin. It covers Green Bay, Sheboygan, Manitowoc and 37 other places: 49 ZIP codes in Brown, Sheboygan, Winnebago and 10 other counties.

What ZIP codes are in area code 274?

49 ZIP codes, by the town each is mailed to: Green Bay (12, 54301 to 54344), Sheboygan (3, 53081 to 53083), Manitowoc (2, 54220 to 54221), Neenah (2, 54956 to 54957) and 30 more towns. The full list is on this page.

What time zone is area code 274 in?

Central time.

Is a 274 number a mobile or a landline?

It can be either. 50% of 274 numbers are assigned to mobile carriers and 0% 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 274?

920. They cover the same area as 274, so a new number there can be given any of them.

Does a 274 number mean the caller is in Wisconsin?

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 274 call can come from anywhere.

Other area codes in Wisconsin

All 8 Wisconsin 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 274.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/274

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