Phone Prefix
(312) 780-XXXX
IL • CHICGOZN01
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
CHICGOZN01
Assigned To
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL
OCN
7196
Status
RT
Number Range
First Number
(312) 780-0000
Last Number
(312) 780-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
13 reports
13
Total FCC + FTC DNC complaints for numbers in this prefix
Top 13 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 780-0228 3127800228 | 1 |
| 2 | (312) 780-0336 3127800336 | 1 |
| 3 | (312) 780-0500 3127800500 | 1 |
| 4 | (312) 780-3059 3127803059 | 1 |
| 5 | (312) 780-3155 3127803155 | 1 |
| 6 | (312) 780-3352 3127803352 | 1 |
| 7 | (312) 780-6894 3127806894 | 1 |
| 8 | (312) 780-7322 3127807322 | 1 |
| 9 | (312) 780-8214 3127808214 | 1 |
| 10 | (312) 780-8300 3127808300 | 1 |
| 11 | (312) 780-8659 3127808659 | 1 |
| 12 | (312) 780-8977 3127808977 | 1 |
| 13 | (312) 780-9489 3127809489 | 1 |
About This Prefix
Phone numbers starting with (312) 780 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (780) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (780) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)