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779 Area Code 🌍☎️

Area Code Profile · Illinois

The 779 area code is located in the state of Illinois and covers 275 cities, serving a total population of approximately 1,529,753. Major cities covered by the 779 area code include Rockford, Joliet, Bolingbrook, Tinley Park, DeKalb (which represents the most populated areas). There are a total of 307 telephone prefix exchanges in this area code, which support an estimated 3,070,000 active or assignable phone numbers. These prefix lines are operated by 40 distinct carriers, with Rockford as the primary rate center location.

Central Time275 Cities307 Prefixes

Reverse Phone Lookup in Rockford, Illinois

Unmask unknown callers, verify telemarketing reports, and view detailed owner information for any phone number beginning with area code (779).

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1

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2

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3

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Access location details, line type, carrier, owner information, and safety levels.

Neighborhood Demographics

Calculated demographics and census summary estimations for area code 779.

34.4 y/oMedian Age
$114,400Median Income
$429,000Median Home Value
1,529,753Total Population

Telemarketer Complaints

Most recent complaints and comments for phone numbers beginning with 779.

Did you receive an unwanted call from a (779) phone number?

Help the community identify spammers by filing a comment.

(779) 717-1623May 18, 2026Debt Collector
Automated voice caller looking for someone named David. Keeps calling repeatedly asking to settle a debt. I have had this number for years and don't know David.
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(779) 730-1640May 17, 2026Political
Pre-recorded campaign call promoting a local candidate. Did not respect my request to be placed on the Do Not Call list.
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(779) 743-1657May 16, 2026Scam / Fraud
Received a text and follow-up call saying my bank account was locked due to suspicious transactions. Included a link to a fake login portal. Do not click!
See Details
(779) 756-1674May 20, 2026Robocall
Robocall regarding health insurance plans. Said my current coverage was expiring and offered a "free consultation". Calling multiple times a day from slightly different numbers.
See Details
(779) 769-1691May 19, 2026Scam / Fraud
Robocall claiming to be from the IRS. Stated that my Social Security Number has been flagged and suspended. Asked to press 1 to speak with an agent. Obvious phishing scam.
See Details

Cities in the 779 Area Code

The most populous cities in area code 779 are: Rockford (152,871), Joliet (147,433), Bolingbrook (73,366), Tinley Park (56,703), and DeKalb (43,862).

Other cities in the 779 area code include:

Crystal Lake, Romeoville, Plainfield, Kankakee, McHenry, Freeport, Belvidere, Lockport, Woodstock, New Lenox, Homer Glen, Loves Park, Machesney Park, Crest Hill, Ottawa, Mokena, Bourbonnais, Frankfort, Sycamore, Bradley, Dixon, Shorewood, Sterling, Streator, Morris.

CityPopulation% in Area Code
Rockford152,871100%
Joliet147,43394%
Bolingbrook73,3669%
Tinley Park56,70310%
DeKalb43,862100%
Crystal Lake40,74397%
Romeoville39,68091%
Plainfield39,58180%
Kankakee27,537100%
McHenry26,992100%
Freeport25,638100%
Belvidere25,585100%
Lockport24,83994%
Woodstock24,770100%
New Lenox24,394100%
Homer Glen24,22020%
Loves Park23,996100%
Machesney Park23,499100%
Crest Hill20,837100%
Ottawa18,768100%

Showing top 20 of 275 cities.

What Time Zone is Area Code 779?

Central Time Zone

Abbreviation: CT · UTC Offset: UTC-6

The 779 area code lies within the Central Time Zone (CT, UTC-6).

Nearby Area Codes

217Springfield, Illinois224Elgin, Illinois309Peoria, Illinois312Chicago, Illinois331Aurora, Illinois447Springfield, Illinois464Cicero, Illinois618Belleville, Illinois630Aurora, Illinois708Cicero, Illinois

Phone Prefixes in the 779 Area Code

307 prefixes found · 40 carriers · 135 rate centers

PrefixCarrierRate Center
(779) 200CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ILROCKFORD
(779) 201CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ILLA SALLE
(779) 202TELEPORT COMMUNICATIONS AMERICA, LLC - ILGALENA
(779) 203T-MOBILE USA, INC.ROCKFORD
(779) 204ONVOY, LLCVERONA
(779) 205NEW CINGULAR WIRELESS PCS, LLC - ILJOLIET
(779) 206CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ILJOLIET
(779) 207CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ILROCKFORD
(779) 208CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ILROCKFORD
(779) 209PEERLESS NETWORK OF ILLINOIS, LLC - ILSANDWICH
(779) 210AT&T CORP.ROCKFORD
(779) 212NUSO, LLCDE KALB
(779) 213PEERLESS NETWORK OF ILLINOIS, LLC - ILOGLESBY
(779) 214MEDIACOM TELEPHONY OF ILLINOIS, LLC - ILGALENA
(779) 215IP HORIZON LLCTONICA
(779) 216PEERLESS NETWORK OF ILLINOIS, LLC - ILFRANKFORT
(779) 217DISH WIRELESS, LLCDE KALB
(779) 218PEERLESS NETWORK OF ILLINOIS, LLC - ILWATSEKA
(779) 219COMMIO, LLCBRAIDWOOD
(779) 220BANDWIDTH.COM CLEC, LLC - ILCRYSTAL LK
(779) 221ONVOY, LLCROCKFORD
(779) 222TELNYX LLCSYCAMORE
(779) 223ONVOY, LLCONARGA
(779) 224NEW CINGULAR WIRELESS PCS, LLC - ILMOMENCE
(779) 225CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ILJOLIET
(779) 226COMCAST IP PHONE, LLCPOLO
(779) 227METROPCS, INC.JOLIET
(779) 228PEERLESS NETWORK OF ILLINOIS, LLC - ILMAZON
(779) 229COMCAST IP PHONE, LLCDEPUE
(779) 230NEW CINGULAR WIRELESS PCS, LLC - ILJOLIET
(779) 231MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ILJOLIET
(779) 232TELEPORT COMMUNICATIONS AMERICA, LLC - ILWILMINGTON
(779) 233T-MOBILE USA, INC.JOLIET
(779) 234BANDWIDTH.COM CLEC, LLC - ILPLAINFIELD
(779) 235AT&T CORP.CRESCENTCY
(779) 236T-MOBILE USA, INC.KANKAKEE
(779) 237CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ILSTREATOR
(779) 238T-MOBILE USA, INC.ROCKFORD
(779) 239NEW CINGULAR WIRELESS PCS, LLC - ILPRINCETON
(779) 240T-MOBILE USA, INC.KANKAKEE
(779) 241T-MOBILE USA, INC.MORRIS
(779) 242NEW CINGULAR WIRELESS PCS, LLC - ILJOLIET
(779) 243NEW CINGULAR WIRELESS PCS, LLC - ILFRANKFORT
(779) 244NEW CINGULAR WIRELESS PCS, LLC - ILMCHENRY
(779) 245T-MOBILE USA, INC.STERLING
(779) 246TELEPORT COMMUNICATIONS AMERICA, LLC - ILROCHELLE
(779) 247CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ILWOODSTOCK
(779) 248CENTURYLINK COMMUNICATIONS, LLCGALENA
(779) 249CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ILDWIGHT
(779) 250T-MOBILE USA, INC.STERLING
(779) 251CENTURYLINK COMMUNICATIONS, LLCDIXON
(779) 252ONVOY, LLCPLAINFIELD
(779) 253TELNYX LLCSO BELOIT
(779) 254COMCAST IP PHONE, LLCFRANKFORT
(779) 255ONVOY, LLCDE KALB
(779) 256VONAGE AMERICA LLCROCKFORD
(779) 257BANDWIDTH.COM CLEC, LLC - ILWILMINGTON
(779) 258ONVOY, LLCHERSCHER
(779) 259ONVOY, LLCMANTENO
(779) 260NEW CINGULAR WIRELESS PCS, LLC - ILJOLIET
(779) 261ONVOY SPECTRUM, LLCFAIRBURY
(779) 262ONVOY, LLCOGLESBY
(779) 263TELEPORT COMMUNICATIONS AMERICA, LLC - ILPLAINFIELD
(779) 264NEW CINGULAR WIRELESS PCS, LLC - ILKANKAKEE
(779) 265LEVEL 3 COMMUNICATIONS, LLC - ILMCHENRY
(779) 266TELNYX LLCLANARK
(779) 267NEW CINGULAR WIRELESS PCS, LLC - ILJOLIET
(779) 268TELEPORT COMMUNICATIONS AMERICA, LLC - ILST ANNE
(779) 269MCIMETRO ACCESS TRANSMISSION SERVICES LLCROCKFORD
(779) 270MCIMETRO ACCESS TRANSMISSION SERVICES LLCDE KALB
(779) 271CSC WIRELESS, LLCLANARK
(779) 272PEERLESS NETWORK OF ILLINOIS, LLC - ILROCKFORD
(779) 273ONVOY, LLCDANFORTH
(779) 274CSC WIRELESS, LLCROCKFORD
(779) 275STRATUS NETWORKSROCKFORD
(779) 276STRATUS NETWORKSDE KALB
(779) 277TELNYX LLCFLANAGAN
(779) 278STRATUS NETWORKSGRANDRIDGE
(779) 279NEW CINGULAR WIRELESS PCS, LLC - ILJOLIET
(779) 280STRATUS NETWORKSDONOVAN
(779) 281ONVOY, LLCTOLUCA
(779) 282STRATUS NETWORKSMARTINTON
(779) 283STRATUS NETWORKSRICHMOND
(779) 284STRATUS NETWORKSSHELDON
(779) 285STRATUS NETWORKSSHERIDAN
(779) 286STRATUS NETWORKSSPRING GRV
(779) 287ONVOY, LLCUNION
(779) 288ONVOY, LLCBEAVERVL
(779) 289NUSO, LLCSO BELOIT
(779) 290STRATUS NETWORKSMILFORD
(779) 291STRATUS NETWORKSWONDERLAKE
(779) 292STRATUS NETWORKSONARGA
(779) 293STRATUS NETWORKSNEW LENOX
(779) 294STRATUS NETWORKSHARDING
(779) 295STRATUS NETWORKSMAZON
(779) 296STRATUS NETWORKSLONG POINT
(779) 297IP HORIZON LLCSTERLING
(779) 298IP HORIZON LLCFORREST
(779) 299STRATUS NETWORKSWENONA
(779) 300T-MOBILE USA, INC.ROCKFORD

Showing first 100 of 307 prefixes.

Frequently Asked Questions

Where is area code 779?
Area code 779 is located in Illinois, covering cities including Rockford, Joliet, Bolingbrook.
What time zone is area code 779?
Area code 779 is in the Central Time Zone (CT, UTC-6).
What state is area code 779?
Area code 779 is in Illinois.