Phone Prefix
(312) 374-XXXX
IL • CHICGOZN01
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
CHICGOZN01
Assigned To
ILLINOIS BELL TEL CO
OCN
9329
Status
RT
Number Range
First Number
(312) 374-0000
Last Number
(312) 374-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
42 reports
42
Total FCC + FTC DNC complaints for numbers in this prefix
Top 31 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 374-6581 3123746581 | 9 |
| 2 | (312) 374-3272 3123743272 | 2 |
| 3 | (312) 374-6887 3123746887 | 2 |
| 4 | (312) 374-2364 3123742364 | 2 |
| 5 | (312) 374-1640 3123741640 | 1 |
| 6 | (312) 374-1881 3123741881 | 1 |
| 7 | (312) 374-2125 3123742125 | 1 |
| 8 | (312) 374-2412 3123742412 | 1 |
| 9 | (312) 374-3241 3123743241 | 1 |
| 10 | (312) 374-3472 3123743472 | 1 |
| 11 | (312) 374-4016 3123744016 | 1 |
| 12 | (312) 374-4204 3123744204 | 1 |
| 13 | (312) 374-4692 3123744692 | 1 |
| 14 | (312) 374-6035 3123746035 | 1 |
| 15 | (312) 374-6262 3123746262 | 1 |
| 16 | (312) 374-6393 3123746393 | 1 |
| 17 | (312) 374-6419 3123746419 | 1 |
| 18 | (312) 374-6510 3123746510 | 1 |
| 19 | (312) 374-6547 3123746547 | 1 |
| 20 | (312) 374-6832 3123746832 | 1 |
| 21 | (312) 374-6884 3123746884 | 1 |
| 22 | (312) 374-7079 3123747079 | 1 |
| 23 | (312) 374-8380 3123748380 | 1 |
| 24 | (312) 374-8621 3123748621 | 1 |
| 25 | (312) 374-8658 3123748658 | 1 |
| 26 | (312) 374-8936 3123748936 | 1 |
| 27 | (312) 374-1025 3123741025 | 1 |
| 28 | (312) 374-9208 3123749208 | 1 |
| 29 | (312) 374-1354 3123741354 | 1 |
| 30 | (312) 374-1453 3123741453 | 1 |
| 31 | (312) 374-1487 3123741487 | 1 |
About This Prefix
Phone numbers starting with (312) 374 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (374) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (374) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)