Phone Prefix
(301) 644-XXXX
MD • FREDERICK
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Carrier Information
NANPA
State
MD
Region
MA
Rate Center
FREDERICK
Assigned To
NUSO, LLC
OCN
551G
Status
AS
Date Assigned
Oct 09, 2018
Number Range
First Number
(301) 644-0000
Last Number
(301) 644-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
33 reports
33
Total FCC + FTC DNC complaints for numbers in this prefix
Top 31 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (301) 644-0482 3016440482 | 2 |
| 2 | (301) 644-0447 3016440447 | 2 |
| 3 | (301) 644-0395 3016440395 | 1 |
| 4 | (301) 644-0403 3016440403 | 1 |
| 5 | (301) 644-0432 3016440432 | 1 |
| 6 | (301) 644-0461 3016440461 | 1 |
| 7 | (301) 644-0466 3016440466 | 1 |
| 8 | (301) 644-0470 3016440470 | 1 |
| 9 | (301) 644-0474 3016440474 | 1 |
| 10 | (301) 644-0478 3016440478 | 1 |
| 11 | (301) 644-0485 3016440485 | 1 |
| 12 | (301) 644-0523 3016440523 | 1 |
| 13 | (301) 644-0568 3016440568 | 1 |
| 14 | (301) 644-0602 3016440602 | 1 |
| 15 | (301) 644-0618 3016440618 | 1 |
| 16 | (301) 644-0626 3016440626 | 1 |
| 17 | (301) 644-0655 3016440655 | 1 |
| 18 | (301) 644-0713 3016440713 | 1 |
| 19 | (301) 644-0735 3016440735 | 1 |
| 20 | (301) 644-0832 3016440832 | 1 |
| 21 | (301) 644-0836 3016440836 | 1 |
| 22 | (301) 644-0879 3016440879 | 1 |
| 23 | (301) 644-0934 3016440934 | 1 |
| 24 | (301) 644-0967 3016440967 | 1 |
| 25 | (301) 644-2260 3016442260 | 1 |
| 26 | (301) 644-3153 3016443153 | 1 |
| 27 | (301) 644-4962 3016444962 | 1 |
| 28 | (301) 644-6070 3016446070 | 1 |
| 29 | (301) 644-0019 3016440019 | 1 |
| 30 | (301) 644-7234 3016447234 | 1 |
| 31 | (301) 644-0077 3016440077 | 1 |
About This Prefix
Phone numbers starting with (301) 644 are part of the North American Numbering Plan (NANP). The first three digits (301) represent the Area Code (NPA), and the next three digits (644) represent the Central Office Code (NXX) or exchange.
- NPA (301) - Numbering Plan Area, identifies the geographic region
- NXX (644) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)