Phone Prefix
(443) 733-XXXX
MD • WATERLO238
Search Number in This Prefix
Enter the last 4 digits to search for a specific number
Carrier Information
NANPA
State
MD
Region
MA
Rate Center
WATERLO238
Assigned To
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
OCN
7229
Status
AS
Date Assigned
Jan 21, 2003
Number Range
First Number
(443) 733-0000
Last Number
(443) 733-9999
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 | (443) 733-6241 4437336241 | 3 |
| 2 | (443) 733-6393 4437336393 | 3 |
| 3 | (443) 733-4572 4437334572 | 1 |
| 4 | (443) 733-4591 4437334591 | 1 |
| 5 | (443) 733-4621 4437334621 | 1 |
| 6 | (443) 733-4671 4437334671 | 1 |
| 7 | (443) 733-4998 4437334998 | 1 |
| 8 | (443) 733-6105 4437336105 | 1 |
| 9 | (443) 733-6567 4437336567 | 1 |
| 10 | (443) 733-0913 4437330913 | 1 |
| 11 | (443) 733-6791 4437336791 | 1 |
| 12 | (443) 733-4138 4437334138 | 1 |
About This Prefix
Phone numbers starting with (443) 733 are part of the North American Numbering Plan (NANP). The first three digits (443) represent the Area Code (NPA), and the next three digits (733) represent the Central Office Code (NXX) or exchange.
- NPA (443) - Numbering Plan Area, identifies the geographic region
- NXX (733) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)