Phone Prefix
(640) 644-XXXX
NJ • MEDFORD
Search Number in This Prefix
Enter the last 4 digits to search for a specific number
Carrier Information
NANPA
State
NJ
Region
MA
Rate Center
MEDFORD
Assigned To
ONVOY, LLC - NJ
OCN
637C
Status
AS
Date Assigned
Feb 01, 2024
Number Range
First Number
(640) 644-0000
Last Number
(640) 644-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
16 reports
16
Total FCC + FTC DNC complaints for numbers in this prefix
Top 12 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (640) 644-6153 6406446153 | 5 |
| 2 | (640) 644-3135 6406443135 | 1 |
| 3 | (640) 644-3255 6406443255 | 1 |
| 4 | (640) 644-3265 6406443265 | 1 |
| 5 | (640) 644-3316 6406443316 | 1 |
| 6 | (640) 644-3331 6406443331 | 1 |
| 7 | (640) 644-3132 6406443132 | 1 |
| 8 | (640) 644-3473 6406443473 | 1 |
| 9 | (640) 644-3489 6406443489 | 1 |
| 10 | (640) 644-3601 6406443601 | 1 |
| 11 | (640) 644-3610 6406443610 | 1 |
| 12 | (640) 644-3471 6406443471 | 1 |
About This Prefix
Phone numbers starting with (640) 644 are part of the North American Numbering Plan (NANP). The first three digits (640) represent the Area Code (NPA), and the next three digits (644) represent the Central Office Code (NXX) or exchange.
- NPA (640) - Numbering Plan Area, identifies the geographic region
- NXX (644) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)