Phone Prefix
(617) 503-XXXX
MA • CAMBRIDGE
Search Number in This Prefix
Enter the last 4 digits to search for a specific number
Carrier Information
NANPA
State
MA
Region
NE
Rate Center
CAMBRIDGE
Assigned To
TERRA NOVA TELECOM INC.
OCN
145J
Status
AS
Date Assigned
Apr 07, 2022
Number Range
First Number
(617) 503-0000
Last Number
(617) 503-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
10 reports
10
Total FCC + FTC DNC complaints for numbers in this prefix
Top 10 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (617) 503-1253 6175031253 | 1 |
| 2 | (617) 503-4020 6175034020 | 1 |
| 3 | (617) 503-4165 6175034165 | 1 |
| 4 | (617) 503-4695 6175034695 | 1 |
| 5 | (617) 503-4876 6175034876 | 1 |
| 6 | (617) 503-5632 6175035632 | 1 |
| 7 | (617) 503-6962 6175036962 | 1 |
| 8 | (617) 503-8852 6175038852 | 1 |
| 9 | (617) 503-9403 6175039403 | 1 |
| 10 | (617) 503-9851 6175039851 | 1 |
About This Prefix
Phone numbers starting with (617) 503 are part of the North American Numbering Plan (NANP). The first three digits (617) represent the Area Code (NPA), and the next three digits (503) represent the Central Office Code (NXX) or exchange.
- NPA (617) - Numbering Plan Area, identifies the geographic region
- NXX (503) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)