Phone Prefix
(510) 274-XXXX
CA • HAYWARD
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Carrier Information
NANPA
State
CA
Region
WC
Rate Center
HAYWARD
Assigned To
T-MOBILE USA, INC.
OCN
6529
Status
AS
Date Assigned
Sep 01, 2006
Number Range
First Number
(510) 274-0000
Last Number
(510) 274-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
15 reports
15
Total FCC + FTC DNC complaints for numbers in this prefix
Top 14 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (510) 274-2545 5102742545 | 2 |
| 2 | (510) 274-1531 5102741531 | 1 |
| 3 | (510) 274-2079 5102742079 | 1 |
| 4 | (510) 274-2169 5102742169 | 1 |
| 5 | (510) 274-2530 5102742530 | 1 |
| 6 | (510) 274-2975 5102742975 | 1 |
| 7 | (510) 274-2979 5102742979 | 1 |
| 8 | (510) 274-2993 5102742993 | 1 |
| 9 | (510) 274-3063 5102743063 | 1 |
| 10 | (510) 274-5229 5102745229 | 1 |
| 11 | (510) 274-5767 5102745767 | 1 |
| 12 | (510) 274-5777 5102745777 | 1 |
| 13 | (510) 274-1022 5102741022 | 1 |
| 14 | (510) 274-6949 5102746949 | 1 |
About This Prefix
Phone numbers starting with (510) 274 are part of the North American Numbering Plan (NANP). The first three digits (510) represent the Area Code (NPA), and the next three digits (274) represent the Central Office Code (NXX) or exchange.
- NPA (510) - Numbering Plan Area, identifies the geographic region
- NXX (274) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)