Estimated Number of Assigned Phone Numbers in Ontario, California
In Ontario, California, wireless numbers account for 66.3% of assigned numbers, above the statewide average of 42.6%. Ontario's wireline and VoIP share is 25.7 percentage points lower than the statewide average. Compared with the state overall, Ontario has a more concentrated wireless assignment mix. Ontario is served by 2 area codes in an overlay area, meaning multiple area codes cover the same geographic region.
Estimated Service-Type Mix of Assigned Phone Numbers in Ontario, California
Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Ontario, California
Estimated assigned wireless phone numbers: 758,000
Numbers may later be ported to another carrier, but this chart reflects original number assignment, not current subscriber share.
Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Ontario, California
Estimated assigned wireline and VoIP phone numbers: 285,000
Other / Unclassified Assigned Numbering in Ontario, California
Estimated assigned other or unclassified phone numbers: 100,000
How These Figures Were Built
These figures are estimates based on public phone-number assignment records. They are meant to show the likely mix of assigned phone numbers associated with Ontario, California, not live customer counts.
Some providers may have assigned phone numbers tied to this locality even if they do not actively market or sell service locally. These figures reflect public number-assignment records, not confirmed local service availability.
They also do not reflect number portability at the individual phone-number level, so some numbers may now be used on a different network or by a different provider than the original assignment records suggest.