Location
Oakland, CA
Reported numbers
2,005
Reports in last 7 days
0
Reports in last 30 days
0
Last activity
Apr 13, 2026

About area code 510

Area code 510 is commonly associated with Oakland, CA. The most common report type in this area code is unknown, with 2166 reports. Recent activity has been recorded for numbers in this area code, helping users identify possible spam or unwanted calls.

What people report about area code 510

Recent reports for area code 510 are mostly about unknown callers, with many users also saying the calls felt suspicious. People usually land on this page after getting contact they cannot clearly identify and do not fully trust.

Suspicious or scam-like Unknown callers Repeated calls
“I received a call from this number expecting a call from doctor. Instead when I answered it I waited for it to ring 18 times and hung up. Anyone else?”
“MY PHONE LISTED CALLER AS GABRIEL SHOWERS”

What stands out about area code 510

Reports are spread across several active prefixes within area code 510, which suggests the activity is not limited to one isolated number block. The page also has usable geographic context through Oakland, CA, which helps users decide whether a call looks locally relevant or completely unfamiliar.

Should you answer calls from area code 510?

Because many reports on this page involve unknown callers and suspicious behavior, the safest option is usually to let unexpected calls go to voicemail first and verify the number before responding.

  • Do not trust caller ID alone.
  • Search the full phone number before calling back.
  • Be careful with callers who create urgency or ask for payment.
  • Never share card details, banking data, passwords, or verification codes with an unknown caller.
  • If the call is legitimate, the caller will usually leave a clear voicemail.

Approximate location

Area code 510 is commonly associated with Oakland, CA. The map below shows an approximate location reference and may not represent the full coverage area.

Reported call types

Type
Reports
Share
Unknown
2,166
93.3%
Scam suspicion
71
3.1%
SSN scam
68
2.9%
Silent call
5
0.2%
Debt collector
3
0.1%
Survey
3
0.1%
Valid
3
0.1%
IRS scam
1
0%
Students loan scam
1
0%
Text message
1
0%

Popular prefixes in area code 510

510-757

Numbers: 120 Reports: 141
Last activity: May 9, 2023

510-288

Numbers: 134 Reports: 138
Last activity: Apr 5, 2024

510-210

Numbers: 56 Reports: 67
Last activity: May 17, 2023

510-216

Numbers: 47 Reports: 47
Last activity: Jun 28, 2022

510-340

Numbers: 12 Reports: 35
Last activity: Apr 28, 2022

510-722

Numbers: 24 Reports: 32
Last activity: Sep 6, 2022

510-963

Numbers: 29 Reports: 31
Last activity: Apr 15, 2022

510-513

Numbers: 29 Reports: 31
Last activity: Jan 10, 2021

510-571

Numbers: 26 Reports: 30
Last activity: Oct 29, 2021

510-626

Numbers: 22 Reports: 28
Last activity: Jun 7, 2023

510-949

Numbers: 9 Reports: 24
Last activity: Mar 2, 2021

510-345

Numbers: 21 Reports: 23
Last activity: Apr 23, 2024

Recently reported numbers

How to check if a call is legitimate

This page gives area-code-level context, but the exact number still matters more. Use the reports, recent activity, and voicemail details together before deciding whether to respond.

  1. Search the exact phone number, not just the area code.
  2. Review recent reports and call type patterns.
  3. Check whether the caller left a clear voicemail with a name and reason for calling.
  4. Do not trust threats, payment demands, or urgent account warnings without independent verification.
  5. Contact banks, delivery firms, insurers, courts, or government agencies through their official websites or phone numbers.

FAQ about area code 510

Where is area code 510 located?

Area code 510 should be treated as a general reference point, not proof of the caller's exact location.

Why do so many calls from area code 510 seem suspicious?

Recent reports for area code 510 are mostly about unknown callers, with many users also saying the calls felt suspicious. People usually land on this page after getting contact they cannot clearly identify and do not fully trust.

What can prefix 510-757 tell me?

Reports are spread across several active prefixes within area code 510, which suggests the activity is not limited to one isolated number block.

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