• Name
  • Phone
  • Address

866 Area Code Information

State: DC

Largest City in Area: WASHINGTON

Where is Area Code 866? Area code (866) is in the state of DC. The PeopleSearchNow database has 19,086 records on file with a phone number in the area code of (866). Below, are the major cities in the area code (866).

Major Cities in 866

  • WASHINGTON, DC (410)
  • CHICAGO, IL (394)
  • LOS ANGELES, CA (390)
  • HOUSTON, TX (376)
  • LAS VEGAS, NV (369)
  • AUSTIN, TX (353)
  • PHOENIX, AZ (350)
  • SAN DIEGO, CA (347)
  • DALLAS, TX (318)
  • ROCHESTER, NY (316)

Zip Codes in 866

  • 14623
  • 20002
  • 20706
  • 20770
  • 21701
  • 21703
  • 32084
  • 43081
  • 43224
  • 43229
  • 66061
  • 66062
  • 78704
  • 78741
  • 78744
  • 78745
  • 78748
  • 92506
  • 94536
  • 94538