Find out who called from that unknown Ontario number using our free reverse phone lookup service. Enter the full 10-digit number (including 840 and 909 or any other US area code) to search for available caller information including name, address, phone carrier, and more.
Federal Data
State Data
County Data
City Data
Phone numbers reported as unwanted calls to the FTC by Ontario residents in the last 30 days.
(877) 743-5510
Other
2 reports ·
(888) 711-5945
Other
2 reports ·
(909) 715-8106
Other
1 report ·
(909) 706-6204
Other
1 report ·
(703) 646-6642
Calls pretending to be government, businesses, or family and friends
1 report ·
(915) 338-7653
Calls pretending to be government, businesses, or family and friends
1 report ·
(929) 747-5416
Reducing your debt (credit cards, mortgage, student loans)
1 report ·
(302) 781-8746
Reducing your debt (credit cards, mortgage, student loans)
1 report ·
(502) 798-9806
Reducing your debt (credit cards, mortgage, student loans)
1 report ·
(909) 440-1651
Other
1 report ·
If you receive fraudulent calls or suspect a scam attempt, report it to reportfraud.ftc.gov or local police department using the following contacts:
List of prefixes are assigned to ONTARIO rate center. Filter by phone number prefix or carrier name.
| Prefix | Carrier |
|---|---|
| (909) 208 | T-Mobile |
| (909) 210 | AT&T |
| (909) 212 | TPX Communications |
| (909) 214 | AT&T |
| (909) 215 | AT&T |
| (909) 218 | Charter |
| (909) 223 | AT&T |
| (909) 224 | AT&T |
| (909) 225 | AT&T |
| (909) 226 | AT&T |
| (909) 227 | AT&T |
| (909) 228 | AT&T |
| (909) 229 | Verizon |
| (909) 230 | TPX Communications |
| (909) 234 | AT&T |
| (909) 235 | T-Mobile |
| (909) 238 | Verizon |
| (909) 239 | Verizon |
| (909) 240 | Verizon |
| (909) 241 | Verizon |
| (909) 260 | Verizon |
| (909) 261 | Verizon |
| (909) 262 | AT&T |
| (909) 268 | T-Mobile |
| (909) 284 | T-Mobile |
| (909) 292 | TPX Communications |
| (909) 295 | T-Mobile |
| (909) 319 | T-Mobile |
| (909) 321 | CenturyLink Communications |
| (909) 322 | T-Mobile |
| (909) 331 | Verizon |
| (909) 354 | Verizon |
| (909) 376 | T-Mobile |
| (909) 390 | Frontier |
| (909) 391 | Frontier |
| (909) 395 | Frontier |
| (909) 418 | AT&T |
| (909) 437 | T-Mobile |
| (909) 443 | GetGo Communications |
| (909) 456 | Lumen |
| (909) 458 | Frontier |
| (909) 459 | Frontier |
| (909) 460 | Frontier |
| (909) 467 | Frontier |
| (909) 472 | Teleport Communications America |
| (909) 489 | T-Mobile |
| (909) 490 | T-Mobile |
| (909) 509 | AT&T |
| (909) 510 | Windstream |
| (909) 518 | Verizon |
| (909) 519 | Verizon |
| (909) 544 | Verizon |
| (909) 545 | T-Mobile |
| (909) 563 | Matrix Telecom S/I/I Tnci |
| (909) 605 | Frontier |
| (909) 615 | AT&T |
| (909) 635 | TPX Communications |
| (909) 638 | Verizon |
| (909) 657 | Lumen |
| (909) 661 | North County Communication |
| (909) 673 | Frontier |
| (909) 678 | T-Mobile |
| (909) 687 | T-Mobile |
| (909) 702 | AT&T |
| (909) 717 | T-Mobile |
| (909) 721 | T-Mobile |
| (909) 724 | Lumen |
| (909) 730 | Verizon |
| (909) 731 | Verizon |
| (909) 732 | Verizon |
| (909) 740 | Matrix Telecom S/I/I Tnci |
| (909) 772 | T-Mobile |
| (909) 773 | Frontier |
| (909) 781 | Verizon |
| (909) 786 | Lumen |
| (909) 815 | Verizon |
| (909) 816 | Verizon |
| (909) 821 | T-Mobile |
| (909) 843 | Matrix Telecom S/I/I Tnci |
| (909) 851 | AT&T |
| (909) 906 | RCLEC |
| (909) 917 | T-Mobile |
| (909) 923 | Frontier |
| (909) 930 | Frontier |
| (909) 933 | Frontier |
| (909) 935 | Matrix Telecom S/I/I Tnci |
| (909) 937 | Frontier |
| (909) 938 | Verizon |
| (909) 947 | Frontier |
| (909) 952 | T-Mobile |
| (909) 957 | Verizon |
| (909) 969 | AT&T |
| (909) 974 | Frontier |
| (909) 975 | Frontier |
| (909) 983 | Frontier |
| (909) 984 | Frontier |
| (909) 986 | Frontier |
| (909) 988 | Frontier |
| (909) 994 | T-Mobile |
| (909) 996 | AT&T |
Carrier names have been updated from their original FCC assignments to reflect current companies following mergers, acquisitions, and rebranding. Updates were determined using AI-assisted research and may not be accurate or reflect up to date changes. This data is provided without warranties of accuracy or completeness.