Phone Prefix
(520) 257-XXXX
AZ • TUCSON
Search Number in This Prefix
Enter the last 4 digits to search for a specific number
Carrier Information
NANPA
State
AZ
Region
WE
Rate Center
TUCSON
Assigned To
NEW CINGULAR WIRELESS PCS, LLC
OCN
6010
Status
AS
Date Assigned
Sep 30, 2014
Number Range
First Number
(520) 257-0000
Last Number
(520) 257-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
31 reports
31
Total FCC + FTC DNC complaints for numbers in this prefix
Top 25 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (520) 257-4985 5202574985 | 5 |
| 2 | (520) 257-3328 5202573328 | 2 |
| 3 | (520) 257-1158 5202571158 | 1 |
| 4 | (520) 257-1549 5202571549 | 1 |
| 5 | (520) 257-1569 5202571569 | 1 |
| 6 | (520) 257-1907 5202571907 | 1 |
| 7 | (520) 257-2293 5202572293 | 1 |
| 8 | (520) 257-2308 5202572308 | 1 |
| 9 | (520) 257-2923 5202572923 | 1 |
| 10 | (520) 257-3053 5202573053 | 1 |
| 11 | (520) 257-3125 5202573125 | 1 |
| 12 | (520) 257-3289 5202573289 | 1 |
| 13 | (520) 257-3374 5202573374 | 1 |
| 14 | (520) 257-3443 5202573443 | 1 |
| 15 | (520) 257-3607 5202573607 | 1 |
| 16 | (520) 257-3861 5202573861 | 1 |
| 17 | (520) 257-3953 5202573953 | 1 |
| 18 | (520) 257-4120 5202574120 | 1 |
| 19 | (520) 257-4159 5202574159 | 1 |
| 20 | (520) 257-4680 5202574680 | 1 |
| 21 | (520) 257-4840 5202574840 | 1 |
| 22 | (520) 257-4999 5202574999 | 1 |
| 23 | (520) 257-0933 5202570933 | 1 |
| 24 | (520) 257-6754 5202576754 | 1 |
| 25 | (520) 257-0967 5202570967 | 1 |
About This Prefix
Phone numbers starting with (520) 257 are part of the North American Numbering Plan (NANP). The first three digits (520) represent the Area Code (NPA), and the next three digits (257) represent the Central Office Code (NXX) or exchange.
- NPA (520) - Numbering Plan Area, identifies the geographic region
- NXX (257) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)