| Area Code: | 510 |
| Country: | United States |
| State/Province: | California - CA |
| Major City: | Oakland |
| Time Zone: | Pacific |
| About 510 : | The 510 Area Code (or Area Code 510) is located in the state of CA. Area Code 510 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 2.42 million unique phone numbers and 7.86 million individuals near the city of Hayward |
Active Prefixes in Area Code 201
| Prefix | Primary City | Usage | Company |
|---|---|---|---|
| 510-393-#### | San Francisco | Wireless Numbers | Sprint Spectrum L.p.... |
| 510-394-#### | Oakland | Landline Numbers | Teleport Communicati... |
| 510-395-#### | Oakland | Landline Numbers | Teleport Communicati... |
| 510-396-#### | Fremont | Wireless Numbers | T-mobile Usa, Inc.... |
| 510-397-#### | Hayward | Landline Numbers | Comcast Phone Of Cal... |
| 510-398-#### | Hayward | Landline Numbers | Bandwidth.com Clec, ... |
| 510-400-#### | Fremont | Landline Numbers | Xo California, Inc.... |
| 510-401-#### | Union City | Landline Numbers | Mpower Communication... |
| 510-402-#### | Fremont | Landline Numbers | Mpower Communication... |
| 510-403-#### | Fremont | Landline Numbers | Mpower Networks Serv... |
| 510-404-#### | Union City | Landline Numbers | Mci Worldcom Communi... |
| 510-405-#### | Fremont | Landline Numbers | Pac - West Telecomm,... |
| 510-406-#### | Oakland | Wireless Numbers | Cellco Partnership D... |
| 510-407-#### | Oakland | Wireless Numbers | Cellco Partnership D... |
| 510-408-#### | El Sobrante | Landline Numbers | Pacific Bell... |
| 510-409-#### | Oakland | Wireless Numbers | New Cingular Wireles... |
| 510-410-#### | Oakland | Wireless Numbers | Cellco Partnership D... |
| 510-412-#### | Richmond | Landline Numbers | Pacific Bell... |
| 510-413-#### | Fremont | Landline Numbers | Pacific Bell... |
| 510-414-#### | Oakland | Wireless Numbers | Cellco Partnership D... |
| 510-415-#### | Hayward | Wireless Numbers | T-mobile Usa, Inc.... |
| 510-416-#### | Berkeley | Landline Numbers | North County Communi... |
| 510-417-#### | El Sobrante | Wireless Numbers | T-mobile Usa, Inc.... |
| 510-418-#### | Oakland | Wireless Numbers | Cellco Partnership D... |
| 510-419-#### | Oakland | Landline Numbers | Pacific Bell... |
| 510-420-#### | Oakland | Landline Numbers | Pacific Bell... |
| 510-421-#### | Oakland | Wireless Numbers | Cellco Partnership D... |
| 510-423-#### | Oakland | Landline Numbers | Paetec Communication... |
| 510-425-#### | Oakland | Landline Numbers | Pacific Bell... |
| 510-427-#### | Hayward | Wireless Numbers | Cellco Partnership D... |
Recent user feedback
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Marcy Payne
15:44 2024-05-15
Category: Hang up Calls
No message left even though call went to voicemail (suggesting a robocall system). Caller ID said "BROWNSVILLE PA" (with space in the middle like that). Another report site had it flagged as a car warranty spam call.
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Marcy Payne
21:43 2024-05-14
Category: Fraud Calls
Didn't recognize #; caller ID just said "HONESDALE PA" (yes, with the gap in the center). Googled the # and another report site had ALREADY flagged it as some sort of health insurance spam call....
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Desdemona Renfield
21:40 2024-05-14
Category: Hang up Calls
6th call from "SAYRE PA" since early March. Only difference is the last 4 digits each time. This time? Picked up & immediately hung up when I saw the caller ID....
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Marcy Payne
18:28 2024-05-13
Category: Sales Calls
Caller ID said "Name Unavailable". I can't count how many calls which have come up on the caller ID that way. So picked up & hung up on general principle.
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Penny Wise
18:26 2024-05-13
Category: Sales Calls
No message left by "Name Unavailable". Another site like this one had # flagged as being "invalid" (which I guess means it's a spoofed number or one that isn't in service. So, likely spam....
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Yuliya F
14:34 2024-05-13
Category: Fraud Calls
HAS to be some sort of fraud: the caller ID came up as "NOT IN SERVICE"! Did not recognize # and for the most part neither did Google (I'm fixing that -- you're welcome...).
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Yuliya F
14:32 2024-05-13
Category: Hang up Calls
No message left by "Name Unavailable" even though call went to voicemail. Another site ALREADY had # flagged as "invalid or not belonging to the US" when I looked it up! Clearly some flavor of scam....
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Yuliya F
19:04 2024-05-10
Category: Fraud Calls
6th call from this area code/exhange in a month. 27th since Jan. which came up as "Name Unavailable" on the caller ID. NO hits on Google. And another report site said # was either "Invalid" or "NOT a US #". I'd call that a Fraud Call, too....