Home / Area 312 / Prefix 204
Prefix Lookup

(312) 204 Phone Number Lookup

Research phone numbers under this exchange in Chicago, Illinois. Review carrier details, activity signals, and community caller feedback.

138number listings
0caller reports
8lookup pages

Phone Numbers in This Prefix

Browse numbers in this exchange and open any listing to view caller details, spam signals, and community feedback. Showing 19–36 of 138 listings for this prefix.

Community notes Landline

(312) 204-0307

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
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Community notes Landline

(312) 204-0327

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0347

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0367

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0387

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0407

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0427

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0447

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0467

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0487

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0507

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0527

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0547

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0567

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0587

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0607

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0627

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing
Community notes Landline

(312) 204-0647

Chicago, Illinois

  • Carrier: Ameritech Illinois
  • Exchange: 312-204
  • Report type: Reverse lookup profile
View listing

About this prefix

Area code 312 prefix 204 is organized as a reverse lookup section for Chicago, Illinois. The page combines location metadata, carrier information, line type, number listings, and community activity in one place.

Public URLs use the exchange format 312-204, while each listing still maps back to the correct area code and prefix structure.