Phone Prefix
(443) 400-XXXX
MD • BRYNPKLNCM
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Carrier Information
NANPA
State
MD
Region
MA
Rate Center
BRYNPKLNCM
Assigned To
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
OCN
7229
Status
RT
Number Range
First Number
(443) 400-0000
Last Number
(443) 400-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
15 reports
15
Total FCC + FTC DNC complaints for numbers in this prefix
Top 13 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (443) 400-9364 4434009364 | 2 |
| 2 | (443) 400-0920 4434000920 | 1 |
| 3 | (443) 400-1790 4434001790 | 1 |
| 4 | (443) 400-3830 4434003830 | 1 |
| 5 | (443) 400-5230 4434005230 | 1 |
| 6 | (443) 400-5335 4434005335 | 1 |
| 7 | (443) 400-0151 4434000151 | 1 |
| 8 | (443) 400-7904 4434007904 | 1 |
| 9 | (443) 400-7921 4434007921 | 1 |
| 10 | (443) 400-8373 4434008373 | 1 |
| 11 | (443) 400-8888 4434008888 | 1 |
| 12 | (443) 400-9262 4434009262 | 1 |
| 13 | (443) 400-7413 4434007413 | 1 |
About This Prefix
Phone numbers starting with (443) 400 are part of the North American Numbering Plan (NANP). The first three digits (443) represent the Area Code (NPA), and the next three digits (400) represent the Central Office Code (NXX) or exchange.
- NPA (443) - Numbering Plan Area, identifies the geographic region
- NXX (400) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)