Phone Prefix
(312) 604-XXXX
IL • CHICGOZN01
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
CHICGOZN01
Assigned To
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
OCN
7229
Status
RT
Number Range
First Number
(312) 604-0000
Last Number
(312) 604-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
49 reports
49
Total FCC + FTC DNC complaints for numbers in this prefix
Top 31 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 604-7187 3126047187 | 11 |
| 2 | (312) 604-5519 3126045519 | 3 |
| 3 | (312) 604-5909 3126045909 | 3 |
| 4 | (312) 604-6122 3126046122 | 2 |
| 5 | (312) 604-7176 3126047176 | 2 |
| 6 | (312) 604-5905 3126045905 | 2 |
| 7 | (312) 604-7184 3126047184 | 2 |
| 8 | (312) 604-3870 3126043870 | 1 |
| 9 | (312) 604-3925 3126043925 | 1 |
| 10 | (312) 604-5440 3126045440 | 1 |
| 11 | (312) 604-5681 3126045681 | 1 |
| 12 | (312) 604-5952 3126045952 | 1 |
| 13 | (312) 604-5969 3126045969 | 1 |
| 14 | (312) 604-6998 3126046998 | 1 |
| 15 | (312) 604-7186 3126047186 | 1 |
| 16 | (312) 604-7190 3126047190 | 1 |
| 17 | (312) 604-7297 3126047297 | 1 |
| 18 | (312) 604-7364 3126047364 | 1 |
| 19 | (312) 604-7931 3126047931 | 1 |
| 20 | (312) 604-8893 3126048893 | 1 |
| 21 | (312) 604-9095 3126049095 | 1 |
| 22 | (312) 604-9308 3126049308 | 1 |
| 23 | (312) 604-9802 3126049802 | 1 |
| 24 | (312) 604-0851 3126040851 | 1 |
| 25 | (312) 604-9820 3126049820 | 1 |
| 26 | (312) 604-1400 3126041400 | 1 |
| 27 | (312) 604-1469 3126041469 | 1 |
| 28 | (312) 604-1802 3126041802 | 1 |
| 29 | (312) 604-2259 3126042259 | 1 |
| 30 | (312) 604-2560 3126042560 | 1 |
| 31 | (312) 604-3584 3126043584 | 1 |
About This Prefix
Phone numbers starting with (312) 604 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (604) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (604) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)