Phone Prefix
(605) 504-XXXX
SD • SIOUX FLS
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Carrier Information
NANPA
State
SD
Region
WE
Rate Center
SIOUX FLS
Assigned To
QWEST CORPORATION
OCN
9631
Status
AS
Date Assigned
Aug 31, 2016
Number Range
First Number
(605) 504-0000
Last Number
(605) 504-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
2 reports
2
Total FCC + FTC DNC complaints for numbers in this prefix
Top 2 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (605) 504-1400 6055041400 | 1 |
| 2 | (605) 504-5400 6055045400 | 1 |
About This Prefix
Phone numbers starting with (605) 504 are part of the North American Numbering Plan (NANP). The first three digits (605) represent the Area Code (NPA), and the next three digits (504) represent the Central Office Code (NXX) or exchange.
- NPA (605) - Numbering Plan Area, identifies the geographic region
- NXX (504) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)