Phone Prefix
(520) 437-XXXX
AZ • TUCSON
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Carrier Information
NANPA
State
AZ
Region
WE
Rate Center
TUCSON
Assigned To
XO ARIZONA, INC.
OCN
4793
Status
AS
Date Assigned
Mar 31, 2006
Number Range
First Number
(520) 437-0000
Last Number
(520) 437-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
5 reports
5
Total FCC + FTC DNC complaints for numbers in this prefix
Top 5 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (520) 437-0628 5204370628 | 1 |
| 2 | (520) 437-1915 5204371915 | 1 |
| 3 | (520) 437-2091 5204372091 | 1 |
| 4 | (520) 437-2356 5204372356 | 1 |
| 5 | (520) 437-5766 5204375766 | 1 |
About This Prefix
Phone numbers starting with (520) 437 are part of the North American Numbering Plan (NANP). The first three digits (520) represent the Area Code (NPA), and the next three digits (437) represent the Central Office Code (NXX) or exchange.
- NPA (520) - Numbering Plan Area, identifies the geographic region
- NXX (437) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)