Phone Prefix
(312) 770-XXXX
IL • CHICGOZN01
Search Number in This Prefix
Enter the last 4 digits to search for a specific number
Carrier Information
NANPA
State
IL
Region
MW
Rate Center
CHICGOZN01
Assigned To
NEW CINGULAR WIRELESS PCS, LLC - IL
OCN
6534
Status
AS
Date Assigned
Oct 07, 2008
Number Range
First Number
(312) 770-0000
Last Number
(312) 770-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
9 reports
9
Total FCC + FTC DNC complaints for numbers in this prefix
Top 9 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 770-1249 3127701249 | 1 |
| 2 | (312) 770-2079 3127702079 | 1 |
| 3 | (312) 770-2901 3127702901 | 1 |
| 4 | (312) 770-2969 3127702969 | 1 |
| 5 | (312) 770-4726 3127704726 | 1 |
| 6 | (312) 770-7355 3127707355 | 1 |
| 7 | (312) 770-7432 3127707432 | 1 |
| 8 | (312) 770-9659 3127709659 | 1 |
| 9 | (312) 770-9697 3127709697 | 1 |
About This Prefix
Phone numbers starting with (312) 770 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (770) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (770) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)