Phone Prefix
(510) 256-XXXX
CA • CROCKETT
Search Number in This Prefix
Enter the last 4 digits to search for a specific number
Carrier Information
NANPA
State
CA
Region
WC
Rate Center
CROCKETT
Assigned To
ONVOY, LLC - CA
OCN
649C
Status
AS
Date Assigned
Mar 22, 2005
Number Range
First Number
(510) 256-0000
Last Number
(510) 256-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
175 reports
175
Total FCC + FTC DNC complaints for numbers in this prefix
Top 100 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (510) 256-0361 5102560361 | 5 |
| 2 | (510) 256-5827 5102565827 | 5 |
| 3 | (510) 256-3333 5102563333 | 4 |
| 4 | (510) 256-7195 5102567195 | 4 |
| 5 | (510) 256-5705 5102565705 | 4 |
| 6 | (510) 256-0366 5102560366 | 4 |
| 7 | (510) 256-0367 5102560367 | 4 |
| 8 | (510) 256-7066 5102567066 | 4 |
| 9 | (510) 256-0374 5102560374 | 4 |
| 10 | (510) 256-7877 5102567877 | 3 |
| 11 | (510) 256-0375 5102560375 | 3 |
| 12 | (510) 256-7369 5102567369 | 3 |
| 13 | (510) 256-7358 5102567358 | 2 |
| 14 | (510) 256-7409 5102567409 | 2 |
| 15 | (510) 256-7407 5102567407 | 2 |
| 16 | (510) 256-5756 5102565756 | 2 |
| 17 | (510) 256-5250 5102565250 | 2 |
| 18 | (510) 256-1157 5102561157 | 2 |
| 19 | (510) 256-7986 5102567986 | 2 |
| 20 | (510) 256-8852 5102568852 | 2 |
| 21 | (510) 256-8890 5102568890 | 2 |
| 22 | (510) 256-5596 5102565596 | 2 |
| 23 | (510) 256-5027 5102565027 | 2 |
| 24 | (510) 256-3232 5102563232 | 2 |
| 25 | (510) 256-5079 5102565079 | 2 |
| 26 | (510) 256-5119 5102565119 | 2 |
| 27 | (510) 256-4025 5102564025 | 1 |
| 28 | (510) 256-4933 5102564933 | 1 |
| 29 | (510) 256-5042 5102565042 | 1 |
| 30 | (510) 256-5128 5102565128 | 1 |
| 31 | (510) 256-5187 5102565187 | 1 |
| 32 | (510) 256-5190 5102565190 | 1 |
| 33 | (510) 256-5201 5102565201 | 1 |
| 34 | (510) 256-5358 5102565358 | 1 |
| 35 | (510) 256-5587 5102565587 | 1 |
| 36 | (510) 256-5593 5102565593 | 1 |
| 37 | (510) 256-5675 5102565675 | 1 |
| 38 | (510) 256-5681 5102565681 | 1 |
| 39 | (510) 256-5719 5102565719 | 1 |
| 40 | (510) 256-5721 5102565721 | 1 |
| 41 | (510) 256-5732 5102565732 | 1 |
| 42 | (510) 256-5820 5102565820 | 1 |
| 43 | (510) 256-6013 5102566013 | 1 |
| 44 | (510) 256-6018 5102566018 | 1 |
| 45 | (510) 256-6101 5102566101 | 1 |
| 46 | (510) 256-6827 5102566827 | 1 |
| 47 | (510) 256-7029 5102567029 | 1 |
| 48 | (510) 256-7092 5102567092 | 1 |
| 49 | (510) 256-7118 5102567118 | 1 |
| 50 | (510) 256-7313 5102567313 | 1 |
| 51 | (510) 256-7316 5102567316 | 1 |
| 52 | (510) 256-7317 5102567317 | 1 |
| 53 | (510) 256-7338 5102567338 | 1 |
| 54 | (510) 256-7357 5102567357 | 1 |
| 55 | (510) 256-7462 5102567462 | 1 |
| 56 | (510) 256-7485 5102567485 | 1 |
| 57 | (510) 256-7510 5102567510 | 1 |
| 58 | (510) 256-7634 5102567634 | 1 |
| 59 | (510) 256-7808 5102567808 | 1 |
| 60 | (510) 256-7823 5102567823 | 1 |
| 61 | (510) 256-7838 5102567838 | 1 |
| 62 | (510) 256-7887 5102567887 | 1 |
| 63 | (510) 256-7938 5102567938 | 1 |
| 64 | (510) 256-7981 5102567981 | 1 |
| 65 | (510) 256-8082 5102568082 | 1 |
| 66 | (510) 256-8111 5102568111 | 1 |
| 67 | (510) 256-8183 5102568183 | 1 |
| 68 | (510) 256-8284 5102568284 | 1 |
| 69 | (510) 256-8383 5102568383 | 1 |
| 70 | (510) 256-8400 5102568400 | 1 |
| 71 | (510) 256-8421 5102568421 | 1 |
| 72 | (510) 256-8435 5102568435 | 1 |
| 73 | (510) 256-8444 5102568444 | 1 |
| 74 | (510) 256-8514 5102568514 | 1 |
| 75 | (510) 256-8531 5102568531 | 1 |
| 76 | (510) 256-8546 5102568546 | 1 |
| 77 | (510) 256-8547 5102568547 | 1 |
| 78 | (510) 256-8611 5102568611 | 1 |
| 79 | (510) 256-8625 5102568625 | 1 |
| 80 | (510) 256-8634 5102568634 | 1 |
| 81 | (510) 256-8638 5102568638 | 1 |
| 82 | (510) 256-8648 5102568648 | 1 |
| 83 | (510) 256-8688 5102568688 | 1 |
| 84 | (510) 256-8745 5102568745 | 1 |
| 85 | (510) 256-8759 5102568759 | 1 |
| 86 | (510) 256-8778 5102568778 | 1 |
| 87 | (510) 256-8844 5102568844 | 1 |
| 88 | (510) 256-8848 5102568848 | 1 |
| 89 | (510) 256-8860 5102568860 | 1 |
| 90 | (510) 256-8943 5102568943 | 1 |
| 91 | (510) 256-9022 5102569022 | 1 |
| 92 | (510) 256-9331 5102569331 | 1 |
| 93 | (510) 256-9421 5102569421 | 1 |
| 94 | (510) 256-9433 5102569433 | 1 |
| 95 | (510) 256-9581 5102569581 | 1 |
| 96 | (510) 256-9698 5102569698 | 1 |
| 97 | (510) 256-9724 5102569724 | 1 |
| 98 | (510) 256-9942 5102569942 | 1 |
| 99 | (510) 256-0089 5102560089 | 1 |
| 100 | (510) 256-9952 5102569952 | 1 |
About This Prefix
Phone numbers starting with (510) 256 are part of the North American Numbering Plan (NANP). The first three digits (510) represent the Area Code (NPA), and the next three digits (256) represent the Central Office Code (NXX) or exchange.
- NPA (510) - Numbering Plan Area, identifies the geographic region
- NXX (256) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)