Phone Prefix
(517) 921-XXXX
MI • ADDISON
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Carrier Information
NANPA
State
MI
Region
MW
Rate Center
ADDISON
Assigned To
ONVOY, LLCV - MI
OCN
543C
Status
AS
Date Assigned
Jan 15, 2020
Number Range
First Number
(517) 921-0000
Last Number
(517) 921-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
19 reports
19
Total FCC + FTC DNC complaints for numbers in this prefix
Top 18 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (517) 921-1462 5179211462 | 2 |
| 2 | (517) 921-0474 5179210474 | 1 |
| 3 | (517) 921-0812 5179210812 | 1 |
| 4 | (517) 921-0953 5179210953 | 1 |
| 5 | (517) 921-0986 5179210986 | 1 |
| 6 | (517) 921-1338 5179211338 | 1 |
| 7 | (517) 921-1889 5179211889 | 1 |
| 8 | (517) 921-1921 5179211921 | 1 |
| 9 | (517) 921-2721 5179212721 | 1 |
| 10 | (517) 921-2784 5179212784 | 1 |
| 11 | (517) 921-3728 5179213728 | 1 |
| 12 | (517) 921-3898 5179213898 | 1 |
| 13 | (517) 921-5142 5179215142 | 1 |
| 14 | (517) 921-5161 5179215161 | 1 |
| 15 | (517) 921-5375 5179215375 | 1 |
| 16 | (517) 921-6792 5179216792 | 1 |
| 17 | (517) 921-0419 5179210419 | 1 |
| 18 | (517) 921-6909 5179216909 | 1 |
About This Prefix
Phone numbers starting with (517) 921 are part of the North American Numbering Plan (NANP). The first three digits (517) represent the Area Code (NPA), and the next three digits (921) represent the Central Office Code (NXX) or exchange.
- NPA (517) - Numbering Plan Area, identifies the geographic region
- NXX (921) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)