1. Area Code Lookup
  2. Area code 510
  3. Prefix 999

Area Code 510 Information and Location Details

The 510-999-XXXX area code prefix is located in San Jose, California including Hayward, Oakland and was originally put into service on January 14th 2000. Run a search and find out who's calling you now.

RUN A PHONE NUMBER SEARCH NOW

  • Phone Number
  • City
Canadian area code look up
SEARCH
canadian area code look up
Most Searched Area Codes:

Report A Phone Number

Mark phone number as:

  • Dangerous
  • Harassing
  • Unknown
  • Neutral
  • Safe
Submit

Report A Phone Number

Mark phone number as:

  • Dangerous
  • Harassing
  • Unknown
  • Neutral
  • Safe
Submit
Country

United States of America

State

California

Largest City

San Jose

Timezone

Pacific

The Huffington Postnews.com.auTechcoBlogherA Current AffairYahoo!news.com.auAOL.

510-999 PHONE NUMBERS DIRECTORY

To make looking up a phone number easier when you’re not sure about the last 4 digits, we grouped them below by hundreds.

(510) 999-xxxx Phone Numbers grouped by hundreds

00XX - 09XX
(510) 999 00XX
(510) 999 01XX
(510) 999 02XX
(510) 999 03XX
(510) 999 04XX
(510) 999 05XX
(510) 999 06XX
(510) 999 07XX
(510) 999 08XX
(510) 999 09XX
Total Reported Spam Calls : 241
10XX - 19XX
(510) 999 10XX
(510) 999 12XX
(510) 999 13XX
(510) 999 14XX
(510) 999 15XX
(510) 999 16XX
(510) 999 17XX
(510) 999 19XX
Total Reported Spam Calls : 311
20XX - 29XX
(510) 999 20XX
(510) 999 21XX
(510) 999 22XX
(510) 999 23XX
(510) 999 24XX
(510) 999 25XX
(510) 999 26XX
(510) 999 27XX
(510) 999 28XX
(510) 999 29XX
Total Reported Spam Calls : 64
30XX - 39XX
(510) 999 31XX
(510) 999 32XX
(510) 999 33XX
(510) 999 34XX
(510) 999 36XX
(510) 999 37XX
(510) 999 38XX
(510) 999 39XX
Total Reported Spam Calls : 156
40XX - 49XX
(510) 999 40XX
(510) 999 41XX
(510) 999 42XX
(510) 999 44XX
(510) 999 46XX
(510) 999 48XX
Total Reported Spam Calls : 339
50XX - 59XX
(510) 999 52XX
(510) 999 53XX
(510) 999 55XX
(510) 999 56XX
(510) 999 57XX
(510) 999 59XX
Total Reported Spam Calls : 523
60XX - 69XX
(510) 999 60XX
(510) 999 62XX
(510) 999 63XX
(510) 999 65XX
(510) 999 66XX
(510) 999 69XX
Total Reported Spam Calls : 336
70XX - 79XX
(510) 999 70XX
(510) 999 73XX
(510) 999 74XX
(510) 999 75XX
(510) 999 76XX
(510) 999 77XX
(510) 999 78XX
(510) 999 79XX
Total Reported Spam Calls : 310
80XX - 89XX
(510) 999 80XX
(510) 999 82XX
(510) 999 83XX
(510) 999 84XX
(510) 999 85XX
(510) 999 87XX
(510) 999 88XX
(510) 999 89XX
Total Reported Spam Calls : 449
90XX - 99XX
(510) 999 92XX
(510) 999 96XX
(510) 999 97XX
(510) 999 99XX
Total Reported Spam Calls : 221
The 510-999-XXXX area code prefix is located in San Jose, California including Hayward, Oakland and was originally put into service on January 14th 2000. Run a search and find out who's calling you now.

Recently Reported Numbers

(510) 999-7594Unknown

Called two times today. No message left.

(510) 999-9957Unknown

My caller ID showed this number.

(510) 999-7736Unknown

No caller ID

(510) 999-7937Unknown

Multiple calls from 510-999-7937.

(510) 999-2596Unknown

Called three days in a row before 9 am. Heavy accent, asked for me by name, but rest of message was unintelligible because of accent. Caller ID is a name I do not recognize.

(510) 999-7324Unknown

Dead air

(510) 999-9091Unknown

Called but left no message.

(510) 999-9936Unknown

When I answered nobody was there.

(510) 999-8332Dangerous

Caller ID says Hayward Ca. Left a message claiming to be from social security. An obvious scam

(510) 999-8391Unknown

We received a call yesterday.

(510) 999-7735Unknown

Got a phone call. No message left.

Recently Searched Numbers

No additional information reported for these searched numbers. Received a call from any phone number listed below? Please consider helping the community by reporting your experience.

510-999-8603
ReportCf Communications DBA Telekenex
510-999-3052
ReportCf Communications DBA Telekenex
510-999-8560
ReportCf Communications DBA Telekenex
510-999-1005
ReportCf Communications DBA Telekenex
510-999-3646
ReportCf Communications DBA Telekenex
510-999-1543
ReportCf Communications DBA Telekenex
510-999-1741
ReportCf Communications DBA Telekenex
510-999-5375
ReportCf Communications DBA Telekenex
510-999-9890
ReportCf Communications DBA Telekenex
510-999-3961
ReportCf Communications DBA Telekenex
510-999-4224
ReportCf Communications DBA Telekenex
510-999-5509
ReportCf Communications DBA Telekenex
510-999-8413
ReportCf Communications DBA Telekenex
510-999-4525
ReportCf Communications DBA Telekenex
510-999-3592
ReportCf Communications DBA Telekenex
510-999-2109
ReportCf Communications DBA Telekenex
510-999-5477
ReportCf Communications DBA Telekenex
510-999-9273
ReportCf Communications DBA Telekenex
510-999-8378
ReportCf Communications DBA Telekenex

Most searched numbers

Cell
All TimeThis Month
510-999-9217First seen 2010-02-22510-999-6591First seen 2025-10-15
510-999-8100First seen 2014-08-19510-999-9260First seen 2016-01-27
510-999-5456First seen 2026-04-16510-999-5060First seen 2017-08-22
510-999-9806First seen 2021-05-04510-999-6053First seen 2022-09-04
510-999-1086First seen 2017-01-14510-999-9197First seen 2021-01-04
Landline
All TimeThis Month
510-999-4981First seen 2017-11-16510-999-8541First seen 2010-09-09
510-999-3372First seen 2018-11-07510-999-6188First seen 2012-08-02
510-999-7801First seen 2018-01-11510-999-4365First seen 2025-03-16
510-999-2406First seen 2011-10-05510-999-5608First seen 2015-07-06
510-999-3541First seen 2024-06-12510-999-1573First seen 2024-06-18

Cities With coverage

CITY LIST
Alameda
Albany
Berkeley
Crockett
El Sobrante
Fremont
Hayward
Hercules
Oakland
Richmond
San Francisco
San Jose
San Leandro
Sunnyvale
Union City
Walnut Creek