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421 Area Code Information

State: PA

Largest City in Area: PITTSBURGH

Where is Area Code 421? Area code (421) is in the state of PA. The PeopleSearchNow database has 1,314 records on file with a phone number in the area code of (421). Below, are the major cities in the area code (421).

Major Cities in 421

  • PITTSBURGH, PA (195)
  • OVERLAND PARK, KS (69)
  • KANSAS CITY, MO (66)
  • SHAWNEE, KS (38)
  • DALLAS, TX (29)
  • LENEXA, KS (27)
  • OLATHE, KS (27)
  • SHAWNEE MISSION, KS (26)
  • CHATTANOOGA, TN (24)
  • MISSION, KS (22)

Zip Codes in 421

  • 15120
  • 15206
  • 15209
  • 15210
  • 15212
  • 15214
  • 15217
  • 15221
  • 15235
  • 64105
  • 64114
  • 66062
  • 66202
  • 66203
  • 66208
  • 66210
  • 66212
  • 66214
  • 66215
  • 66216