Area Code Overview

Area code 920 is a geographic telephone area code in Wisconsin that went into service on July 26, 1997. The geographic regions covered by this area code overlay has a population of approximately 1,337,253.

Overlay and Dialing Rules

Area Code: 920
State: Wisconsin
Type: General Purpose Code
In Service Date: July 26, 1997
Overlay Complex: 274/920
Local Dialing Plan: This area does require you to dial the area code when calling locally.

Estimated Number of Assigned Phone Numbers in Area Code 920

This area code is ranked 137th out of 363 nationwide in estimated assigned phone numbers. Within the state territory it serves, it is ranked 1st out of 8.

5,743,000

Estimated Service-Type Mix of Assigned Phone Numbers in Area Code 920

Total assigned 5,743,000

Wireless

1,781,000 assigned

31.01%

Wireline and VoIP

3,089,000 assigned

53.79%

Other / Unclassified

873,000 assigned

15.20%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Area Code 920

Estimated assigned wireless phone numbers: 1,781,000

Numbers may later be ported to another carrier, but this chart reflects original number assignment, not current subscriber share.

Verizon Wireless 467,000 (26.22%)

AT&T Wireless 441,000 (24.76%)

T-Mobile 433,000 (24.31%)

UScellular 366,000 (20.55%)

MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 62,000 (3.48%)

METRO SOUTHWEST PCS, LLP 11,000 (0.62%)

Optimum Mobile 1,000 (0.06%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Area Code 920

Estimated assigned wireline and VoIP phone numbers: 3,089,000

AT&T 931,000 (30.14%)

Onvoy 728,000 (23.57%)

Bandwidth 271,000 (8.77%)

Spectrum 258,000 (8.35%)

Lumen 244,000 (7.90%)

CHARTER IP ENABLED SERVICES, LLC 120,000 (3.88%)

TERRA NOVA TELECOM INC. 106,000 (3.43%)

Peerless Network 90,000 (2.91%)

PAETEC ITEL, LLC 78,000 (2.53%)

Commio 49,000 (1.59%)

EON TELECOM, INC. 40,000 (1.29%)

Verizon 34,000 (1.10%)

Other / Unclassified Assigned Numbering in Area Code 920

Estimated assigned other or unclassified phone numbers: 873,000

NEW CELL DBA CELLCOM 200,000 (22.91%)

TDS METROCOM, LLC 165,000 (18.90%)

AMERICAN MESSAGING SERVICES, LLC 160,000 (18.33%)

TELEPORT COMMUNICATIONS AMERICA, LLC WI 97,000 (11.11%)

SPOK, INC. 60,000 (6.87%)

INTEGRATED PATH COMMUNICATIONS, LLC - WI 54,000 (6.19%)

TON80 COMMUNICATIONS, LLC 46,000 (5.27%)

LAKEFIELD TEL. CO. 20,000 (2.29%)

FRACTEL, LLC 14,000 (1.60%)

WISCONSIN RSA #10 LIMITED PARTNERSHIP 11,000 (1.26%)

BRIGHTSPEED OF NORTH CENTRAL WISCONSIN, LLC 10,000 (1.15%)

BRIGHTSPEED OF WESTERN WISCONSIN, LLC 10,000 (1.15%)

Cities and Towns in Area Code 920

Abrams, Wisconsin Algoma, Wisconsin Appleton, Wisconsin Baileys Harbor, Wisconsin Beaver Dam, Wisconsin Berlin, Wisconsin Black Creek, Wisconsin Brandon, Wisconsin Brillion, Wisconsin Brussels, Wisconsin Burnett, Wisconsin Cambria, Wisconsin Cascade, Wisconsin Casco, Wisconsin Cedar Grove, Wisconsin Chilton, Wisconsin Cleveland, Wisconsin Clyman, Wisconsin Coleman, Wisconsin Collins, Wisconsin Columbus, Wisconsin De Pere, Wisconsin Denmark, Wisconsin Eden, Wisconsin Egg Harbor, Wisconsin Elkhart Lake, Wisconsin Fall River, Wisconsin Fond Du Lac, Wisconsin Forestville, Wisconsin Fort Atkinson, Wisconsin Fox Lake, Wisconsin Fremont, Wisconsin Gillett, Wisconsin Green Bay, Wisconsin Green Lake, Wisconsin Greenbush, Wisconsin Hilbert, Wisconsin Horicon, Wisconsin Hortonville, Wisconsin Howards Grove, Wisconsin Hustisford, Wisconsin Jackson, Wisconsin Jefferson, Wisconsin Johnsburg, Wisconsin Johnson Creek, Wisconsin Juneau, Wisconsin Kaukauna, Wisconsin Kewaunee, Wisconsin Kiel, Wisconsin Kingston, Wisconsin Krakow, Wisconsin Lake Mills, Wisconsin Larsen, Wisconsin Lebanon, Wisconsin Lena, Wisconsin Lomira, Wisconsin Luxemburg, Wisconsin Manawa, Wisconsin Manitowoc, Wisconsin Mapleton, Wisconsin Markesan, Wisconsin Mayville, Wisconsin Mill Center, Wisconsin Mishicot, Wisconsin Mount Calvary, Wisconsin Neenah, Wisconsin Neosho, Wisconsin Neshkoro, Wisconsin New Franken, Wisconsin New Holstein, Wisconsin New London, Wisconsin Newton, Wisconsin Newtonburg, Wisconsin Nichols, Wisconsin Oakfield, Wisconsin Oconto Falls, Wisconsin Oconto, Wisconsin Ogdensburg, Wisconsin Omro, Wisconsin Oneida, Wisconsin Oostburg, Wisconsin Oshkosh, Wisconsin Pickett, Wisconsin Plymouth, Wisconsin Poy Sippi, Wisconsin Princeton, Wisconsin Pulaski, Wisconsin Randolph, Wisconsin Random Lake, Wisconsin Readfield, Wisconsin Redgranite, Wisconsin Reedsville, Wisconsin Reeseville, Wisconsin Rio, Wisconsin Ripon, Wisconsin Rosendale, Wisconsin Saint Cloud, Wisconsin Saint Nazianz, Wisconsin Seymour, Wisconsin Sheboygan Falls, Wisconsin Sheboygan, Wisconsin Sherwood, Wisconsin Shiocton, Wisconsin Sister Bay, Wisconsin Stockbridge, Wisconsin Sturgeon Bay, Wisconsin Suring, Wisconsin Theresa, Wisconsin Tisch Mills, Wisconsin Two Rivers, Wisconsin Valders, Wisconsin Van Dyne, Wisconsin Waterloo, Wisconsin Watertown, Wisconsin Waupun, Wisconsin Wautoma, Wisconsin Wayside, Wisconsin Weyauwega, Wisconsin Whitelaw, Wisconsin Wild Rose, Wisconsin Winneconne, Wisconsin Wrightstown, Wisconsin

These geographic regions are also served by area code 274.

How These Figures Were Built

These figures are estimates based on public phone-number assignment records. They are meant to show the likely mix of assigned phone numbers associated with area code 920, not live customer counts.

Some providers may have assigned phone numbers tied to this area code even if they do not actively market or sell service locally. These figures reflect public number-assignment records, not confirmed local service availability.

They also do not reflect number portability at the individual phone-number level, so some numbers may now be used on a different network or by a different provider than the original assignment records suggest.

Population data and locality matching provided by GeoNames.

Last refreshed: April 15, 2026 6:22 pm