Phone Prefix
(443) 583-XXXX
MD • COLUMBIA
Search Number in This Prefix
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Carrier Information
NANPA
State
MD
Region
MA
Rate Center
COLUMBIA
Assigned To
ONVOY, LLC - MD
OCN
876D
Status
AS
Date Assigned
Feb 03, 2016
Number Range
First Number
(443) 583-0000
Last Number
(443) 583-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
32 reports
32
Total FCC + FTC DNC complaints for numbers in this prefix
Top 31 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (443) 583-7989 4435837989 | 2 |
| 2 | (443) 583-0352 4435830352 | 1 |
| 3 | (443) 583-0386 4435830386 | 1 |
| 4 | (443) 583-0729 4435830729 | 1 |
| 5 | (443) 583-0774 4435830774 | 1 |
| 6 | (443) 583-0823 4435830823 | 1 |
| 7 | (443) 583-0997 4435830997 | 1 |
| 8 | (443) 583-1171 4435831171 | 1 |
| 9 | (443) 583-2504 4435832504 | 1 |
| 10 | (443) 583-3082 4435833082 | 1 |
| 11 | (443) 583-3256 4435833256 | 1 |
| 12 | (443) 583-3554 4435833554 | 1 |
| 13 | (443) 583-3767 4435833767 | 1 |
| 14 | (443) 583-3797 4435833797 | 1 |
| 15 | (443) 583-3822 4435833822 | 1 |
| 16 | (443) 583-4985 4435834985 | 1 |
| 17 | (443) 583-5204 4435835204 | 1 |
| 18 | (443) 583-5333 4435835333 | 1 |
| 19 | (443) 583-5444 4435835444 | 1 |
| 20 | (443) 583-5661 4435835661 | 1 |
| 21 | (443) 583-5693 4435835693 | 1 |
| 22 | (443) 583-5702 4435835702 | 1 |
| 23 | (443) 583-6459 4435836459 | 1 |
| 24 | (443) 583-7120 4435837120 | 1 |
| 25 | (443) 583-7135 4435837135 | 1 |
| 26 | (443) 583-7325 4435837325 | 1 |
| 27 | (443) 583-7334 4435837334 | 1 |
| 28 | (443) 583-7560 4435837560 | 1 |
| 29 | (443) 583-8291 4435838291 | 1 |
| 30 | (443) 583-0291 4435830291 | 1 |
| 31 | (443) 583-8298 4435838298 | 1 |
About This Prefix
Phone numbers starting with (443) 583 are part of the North American Numbering Plan (NANP). The first three digits (443) represent the Area Code (NPA), and the next three digits (583) represent the Central Office Code (NXX) or exchange.
- NPA (443) - Numbering Plan Area, identifies the geographic region
- NXX (583) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)