Phone Prefix
(443) 257-XXXX
MD • BALTIMORE
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Carrier Information
NANPA
State
MD
Region
MA
Rate Center
BALTIMORE
Assigned To
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
OCN
6395
Status
RT
Number Range
First Number
(443) 257-0000
Last Number
(443) 257-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
8 reports
8
Total FCC + FTC DNC complaints for numbers in this prefix
Top 8 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (443) 257-0086 4432570086 | 1 |
| 2 | (443) 257-2425 4432572425 | 1 |
| 3 | (443) 257-4717 4432574717 | 1 |
| 4 | (443) 257-5527 4432575527 | 1 |
| 5 | (443) 257-5827 4432575827 | 1 |
| 6 | (443) 257-8105 4432578105 | 1 |
| 7 | (443) 257-8427 4432578427 | 1 |
| 8 | (443) 257-9575 4432579575 | 1 |
About This Prefix
Phone numbers starting with (443) 257 are part of the North American Numbering Plan (NANP). The first three digits (443) represent the Area Code (NPA), and the next three digits (257) represent the Central Office Code (NXX) or exchange.
- NPA (443) - Numbering Plan Area, identifies the geographic region
- NXX (257) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)