|Information about NXX prefix 266|
|Interactive map of Sioux City, Iowa|
|Telephone Company||Qwest Corporation|
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Iowa is serviced by area code 712 and the local prefix 266 covers Sioux City. For specific questions about numbers within 712-266, you may want to contact Qwest Corporation directly.
This is a list of phone prefixes assigned to each company. The prefixes shown are for area code 712 only. Additionally, the list is limited to showing cities around the Sioux City Iowa area.
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