Phone Prefix
(443) 840-XXXX
MD • CATONSVL
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Carrier Information
NANPA
State
MD
Region
MA
Rate Center
CATONSVL
Assigned To
NEW CINGULAR WIRELESS PCS, LLC - DC
OCN
4036
Status
AS
Date Assigned
May 05, 2005
Number Range
First Number
(443) 840-0000
Last Number
(443) 840-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
13 reports
13
Total FCC + FTC DNC complaints for numbers in this prefix
Top 9 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (443) 840-6711 4438406711 | 3 |
| 2 | (443) 840-6488 4438406488 | 3 |
| 3 | (443) 840-1711 4438401711 | 1 |
| 4 | (443) 840-2222 4438402222 | 1 |
| 5 | (443) 840-7183 4438407183 | 1 |
| 6 | (443) 840-7262 4438407262 | 1 |
| 7 | (443) 840-0193 4438400193 | 1 |
| 8 | (443) 840-8132 4438408132 | 1 |
| 9 | (443) 840-0504 4438400504 | 1 |
About This Prefix
Phone numbers starting with (443) 840 are part of the North American Numbering Plan (NANP). The first three digits (443) represent the Area Code (NPA), and the next three digits (840) represent the Central Office Code (NXX) or exchange.
- NPA (443) - Numbering Plan Area, identifies the geographic region
- NXX (840) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)