Phone Prefix
(603) 557-XXXX
NH • NASHUA
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Carrier Information
NANPA
State
NH
Region
NE
Rate Center
NASHUA
Assigned To
OMNIPOINT MIAMI E LICENSE, LLC
OCN
6889
Status
RT
Number Range
First Number
(603) 557-0000
Last Number
(603) 557-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
11 reports
11
Total FCC + FTC DNC complaints for numbers in this prefix
Top 9 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (603) 557-6962 6035576962 | 2 |
| 2 | (603) 557-8086 6035578086 | 2 |
| 3 | (603) 557-3312 6035573312 | 1 |
| 4 | (603) 557-3626 6035573626 | 1 |
| 5 | (603) 557-4412 6035574412 | 1 |
| 6 | (603) 557-8117 6035578117 | 1 |
| 7 | (603) 557-0761 6035570761 | 1 |
| 8 | (603) 557-8258 6035578258 | 1 |
| 9 | (603) 557-2755 6035572755 | 1 |
About This Prefix
Phone numbers starting with (603) 557 are part of the North American Numbering Plan (NANP). The first three digits (603) represent the Area Code (NPA), and the next three digits (557) represent the Central Office Code (NXX) or exchange.
- NPA (603) - Numbering Plan Area, identifies the geographic region
- NXX (557) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)