Phone Prefix
(312) 371-XXXX
IL • CHICGOZN01
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
CHICGOZN01
Assigned To
T-MOBILE USA, INC.
OCN
6529
Status
RT
Number Range
First Number
(312) 371-0000
Last Number
(312) 371-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
12 reports
12
Total FCC + FTC DNC complaints for numbers in this prefix
Top 12 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 371-0511 3123710511 | 1 |
| 2 | (312) 371-0654 3123710654 | 1 |
| 3 | (312) 371-1996 3123711996 | 1 |
| 4 | (312) 371-3540 3123713540 | 1 |
| 5 | (312) 371-5055 3123715055 | 1 |
| 6 | (312) 371-5578 3123715578 | 1 |
| 7 | (312) 371-6377 3123716377 | 1 |
| 8 | (312) 371-6979 3123716979 | 1 |
| 9 | (312) 371-7664 3123717664 | 1 |
| 10 | (312) 371-8271 3123718271 | 1 |
| 11 | (312) 371-8761 3123718761 | 1 |
| 12 | (312) 371-9880 3123719880 | 1 |
About This Prefix
Phone numbers starting with (312) 371 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (371) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (371) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)