Phone Prefix
(443) 584-XXXX
MD • CROFTON
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Carrier Information
NANPA
State
MD
Region
MA
Rate Center
CROFTON
Assigned To
ONVOY SPECTRUM, LLC
OCN
624H
Status
AS
Date Assigned
Apr 23, 2021
Number Range
First Number
(443) 584-0000
Last Number
(443) 584-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
16 reports
16
Total FCC + FTC DNC complaints for numbers in this prefix
Top 14 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (443) 584-6906 4435846906 | 2 |
| 2 | (443) 584-5406 4435845406 | 2 |
| 3 | (443) 584-3698 4435843698 | 1 |
| 4 | (443) 584-4121 4435844121 | 1 |
| 5 | (443) 584-5029 4435845029 | 1 |
| 6 | (443) 584-5294 4435845294 | 1 |
| 7 | (443) 584-5792 4435845792 | 1 |
| 8 | (443) 584-5814 4435845814 | 1 |
| 9 | (443) 584-6109 4435846109 | 1 |
| 10 | (443) 584-9048 4435849048 | 1 |
| 11 | (443) 584-9610 4435849610 | 1 |
| 12 | (443) 584-3320 4435843320 | 1 |
| 13 | (443) 584-9687 4435849687 | 1 |
| 14 | (443) 584-3340 4435843340 | 1 |
About This Prefix
Phone numbers starting with (443) 584 are part of the North American Numbering Plan (NANP). The first three digits (443) represent the Area Code (NPA), and the next three digits (584) represent the Central Office Code (NXX) or exchange.
- NPA (443) - Numbering Plan Area, identifies the geographic region
- NXX (584) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)