Phone Prefix
(603) 991-XXXX
NH • LITTLETON
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Carrier Information
NANPA
State
NH
Region
NE
Rate Center
LITTLETON
Assigned To
BELL ATLANTIC MOBILE, INC
OCN
6386
Status
RT
Number Range
First Number
(603) 991-0000
Last Number
(603) 991-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
11 reports
11
Total FCC + FTC DNC complaints for numbers in this prefix
Top 11 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (603) 991-0123 6039910123 | 1 |
| 2 | (603) 991-0776 6039910776 | 1 |
| 3 | (603) 991-4652 6039914652 | 1 |
| 4 | (603) 991-4976 6039914976 | 1 |
| 5 | (603) 991-7944 6039917944 | 1 |
| 6 | (603) 991-8911 6039918911 | 1 |
| 7 | (603) 991-9014 6039919014 | 1 |
| 8 | (603) 991-9026 6039919026 | 1 |
| 9 | (603) 991-9615 6039919615 | 1 |
| 10 | (603) 991-9687 6039919687 | 1 |
| 11 | (603) 991-9955 6039919955 | 1 |
About This Prefix
Phone numbers starting with (603) 991 are part of the North American Numbering Plan (NANP). The first three digits (603) represent the Area Code (NPA), and the next three digits (991) represent the Central Office Code (NXX) or exchange.
- NPA (603) - Numbering Plan Area, identifies the geographic region
- NXX (991) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)