Phone Prefix
(313) 921-XXXX
MI • DETROITZN2
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Carrier Information
NANPA
State
MI
Region
MW
Rate Center
DETROITZN2
Assigned To
MICHIGAN BELL TEL CO
OCN
9323
Status
RT
Number Range
First Number
(313) 921-0000
Last Number
(313) 921-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
30 reports
30
Total FCC + FTC DNC complaints for numbers in this prefix
Top 22 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (313) 921-6359 3139216359 | 7 |
| 2 | (313) 921-5426 3139215426 | 2 |
| 3 | (313) 921-5208 3139215208 | 2 |
| 4 | (313) 921-3014 3139213014 | 1 |
| 5 | (313) 921-3063 3139213063 | 1 |
| 6 | (313) 921-3227 3139213227 | 1 |
| 7 | (313) 921-4189 3139214189 | 1 |
| 8 | (313) 921-5212 3139215212 | 1 |
| 9 | (313) 921-5312 3139215312 | 1 |
| 10 | (313) 921-5573 3139215573 | 1 |
| 11 | (313) 921-5876 3139215876 | 1 |
| 12 | (313) 921-5927 3139215927 | 1 |
| 13 | (313) 921-5965 3139215965 | 1 |
| 14 | (313) 921-6281 3139216281 | 1 |
| 15 | (313) 921-6287 3139216287 | 1 |
| 16 | (313) 921-6757 3139216757 | 1 |
| 17 | (313) 921-6999 3139216999 | 1 |
| 18 | (313) 921-7338 3139217338 | 1 |
| 19 | (313) 921-1065 3139211065 | 1 |
| 20 | (313) 921-7617 3139217617 | 1 |
| 21 | (313) 921-1348 3139211348 | 1 |
| 22 | (313) 921-2394 3139212394 | 1 |
About This Prefix
Phone numbers starting with (313) 921 are part of the North American Numbering Plan (NANP). The first three digits (313) represent the Area Code (NPA), and the next three digits (921) represent the Central Office Code (NXX) or exchange.
- NPA (313) - Numbering Plan Area, identifies the geographic region
- NXX (921) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)