Phone Prefix
(301) 378-XXXX
MD • FREDERICK
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Carrier Information
NANPA
State
MD
Region
MA
Rate Center
FREDERICK
Assigned To
COMCAST IP PHONE, LLC
OCN
318J
Status
AS
Date Assigned
Feb 22, 2007
Number Range
First Number
(301) 378-0000
Last Number
(301) 378-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
44 reports
44
Total FCC + FTC DNC complaints for numbers in this prefix
Top 39 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (301) 378-9640 3013789640 | 2 |
| 2 | (301) 378-2558 3013782558 | 2 |
| 3 | (301) 378-2124 3013782124 | 2 |
| 4 | (301) 378-8053 3013788053 | 2 |
| 5 | (301) 378-9996 3013789996 | 2 |
| 6 | (301) 378-0574 3013780574 | 1 |
| 7 | (301) 378-0582 3013780582 | 1 |
| 8 | (301) 378-1511 3013781511 | 1 |
| 9 | (301) 378-1585 3013781585 | 1 |
| 10 | (301) 378-2035 3013782035 | 1 |
| 11 | (301) 378-2067 3013782067 | 1 |
| 12 | (301) 378-2150 3013782150 | 1 |
| 13 | (301) 378-2198 3013782198 | 1 |
| 14 | (301) 378-2276 3013782276 | 1 |
| 15 | (301) 378-2600 3013782600 | 1 |
| 16 | (301) 378-2677 3013782677 | 1 |
| 17 | (301) 378-2761 3013782761 | 1 |
| 18 | (301) 378-0085 3013780085 | 1 |
| 19 | (301) 378-5112 3013785112 | 1 |
| 20 | (301) 378-5220 3013785220 | 1 |
| 21 | (301) 378-6197 3013786197 | 1 |
| 22 | (301) 378-6378 3013786378 | 1 |
| 23 | (301) 378-6744 3013786744 | 1 |
| 24 | (301) 378-6929 3013786929 | 1 |
| 25 | (301) 378-8032 3013788032 | 1 |
| 26 | (301) 378-8187 3013788187 | 1 |
| 27 | (301) 378-8660 3013788660 | 1 |
| 28 | (301) 378-8868 3013788868 | 1 |
| 29 | (301) 378-9290 3013789290 | 1 |
| 30 | (301) 378-9390 3013789390 | 1 |
| 31 | (301) 378-9573 3013789573 | 1 |
| 32 | (301) 378-9663 3013789663 | 1 |
| 33 | (301) 378-9704 3013789704 | 1 |
| 34 | (301) 378-9830 3013789830 | 1 |
| 35 | (301) 378-2869 3013782869 | 1 |
| 36 | (301) 378-0160 3013780160 | 1 |
| 37 | (301) 378-0192 3013780192 | 1 |
| 38 | (301) 378-0372 3013780372 | 1 |
| 39 | (301) 378-0510 3013780510 | 1 |
About This Prefix
Phone numbers starting with (301) 378 are part of the North American Numbering Plan (NANP). The first three digits (301) represent the Area Code (NPA), and the next three digits (378) represent the Central Office Code (NXX) or exchange.
- NPA (301) - Numbering Plan Area, identifies the geographic region
- NXX (378) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)