(510) 300
Prefix in HAYWARD, California
Prefix Details
| Area Code | 510 |
| Prefix | 300 |
| Full Number Pattern | (510) 300-XXXX |
| Rate Center | HAYWARD |
| State | California |
| Operating Company | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
| Time Zone | Pacific (PT, UTC-8) |
About the (510) 300 Prefix
The (510) 300 prefix is assigned to U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS and serves the HAYWARD rate center in California. Phone numbers with this prefix are in the Pacific Time Zone and are part of area code 510 which covers Oakland and surrounding areas.