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  1. Area Code Lookup
  2. Area code 510
  3. Prefix 438
  4. 21XX

Phone Number 510-438-21XX Information and Location Details

The 510-438-21XX 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.

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510-438 21XX ACTIVE PHONE NUMBERS DIRECTORY

Search for owner information and other data related to any phone number below.
(510) 438-2100People also searched - 5104382100landline and VOIP
Carrier : Pacific Bell
Last Validated : 2025-06-10
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(510) 438-2101People also searched - 5104382101landline and VOIP
Carrier : Pacific Bell
Last Validated : 2010-06-20
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(510) 438-2102People also searched - 5104382102landline and VOIP
Carrier : Pacific Bell
Last Validated : 2011-09-15
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(510) 438-2103People also searched - 5104382103landline and VOIP
Carrier : Pacific Bell
Last Validated : 2010-07-07
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(510) 438-2104People also searched - 5104382104landline and VOIP
Carrier : Pacific Bell
Last Validated : 2021-06-27
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(510) 438-2105People also searched - 5104382105landline and VOIP
Carrier : Pacific Bell
Last Validated : 2018-12-17
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(510) 438-2106People also searched - 5104382106landline and VOIP
Carrier : Pacific Bell
Last Validated : 2016-05-20
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(510) 438-2107People also searched - 5104382107landline and VOIP
Carrier : Pacific Bell
Last Validated : 2013-06-06
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(510) 438-2108People also searched - 5104382108landline and VOIP
Carrier : Pacific Bell
Last Validated : 2015-11-18
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(510) 438-2109People also searched - 5104382109landline and VOIP
Carrier : Pacific Bell
Last Validated : 2010-08-07
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(510) 438-2110People also searched - 5104382110landline and VOIP
Carrier : Pacific Bell
Last Validated : 2019-05-05
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(510) 438-2111People also searched - 5104382111landline and VOIP
Carrier : Pacific Bell
Last Validated : 2024-05-24
Unknown
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Report : Left no message.
(510) 438-2112People also searched - 5104382112landline and VOIP
Carrier : Pacific Bell
Last Validated : 2024-05-22
Unknown
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Report : hey
(510) 438-2113People also searched - 5104382113landline and VOIP
Carrier : Pacific Bell
Last Validated : 2023-04-16
Unknown
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Report : Case number being sued
(510) 438-2114People also searched - 5104382114landline and VOIP
Carrier : Pacific Bell
Last Validated : 2011-04-08
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(510) 438-2115People also searched - 5104382115landline and VOIP
Carrier : Pacific Bell
Last Validated : 2017-04-01
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(510) 438-2116People also searched - 5104382116landline and VOIP
Carrier : Pacific Bell
Last Validated : 2014-01-28
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(510) 438-2117People also searched - 5104382117landline and VOIP
Carrier : Pacific Bell
Last Validated : 2014-06-27
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(510) 438-2118People also searched - 5104382118landline and VOIP
Carrier : Pacific Bell
Last Validated : 2012-12-22
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(510) 438-2119People also searched - 5104382119landline and VOIP
Carrier : Pacific Bell
Last Validated : 2010-12-17
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(510) 438-2120People also searched - 5104382120landline and VOIP
Carrier : Pacific Bell
Last Validated : 2016-08-20
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(510) 438-2121People also searched - 5104382121landline and VOIP
Carrier : Pacific Bell
Last Validated : 2014-10-07
Dangerous
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Report : Same as the others - they call my phone ... See More
(510) 438-2122People also searched - 5104382122landline and VOIP
Carrier : Pacific Bell
Last Validated : 2020-11-21
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(510) 438-2123People also searched - 5104382123landline and VOIP
Carrier : Pacific Bell
Last Validated : 2019-11-28
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(510) 438-2124People also searched - 5104382124landline and VOIP
Carrier : Pacific Bell
Last Validated : 2013-03-25
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(510) 438-2125People also searched - 5104382125landline and VOIP
Carrier : Pacific Bell
Last Validated : 2011-10-19
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(510) 438-2126People also searched - 5104382126landline and VOIP
Carrier : Pacific Bell
Last Validated : 2020-05-08
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(510) 438-2127People also searched - 5104382127landline and VOIP
Carrier : Pacific Bell
Last Validated : 2016-02-05
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(510) 438-2128People also searched - 5104382128landline and VOIP
Carrier : Pacific Bell
Last Validated : 2015-09-26
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(510) 438-2129People also searched - 5104382129landline and VOIP
Carrier : Pacific Bell
Last Validated : 2025-12-26
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(510) 438-2130People also searched - 5104382130landline and VOIP
Carrier : Pacific Bell
Last Validated : 2015-01-20
Unknown
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Report : I didn't answer. No message.
(510) 438-2131People also searched - 5104382131landline and VOIP
Carrier : Pacific Bell
Last Validated : 2010-10-24
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(510) 438-2132People also searched - 5104382132landline and VOIP
Carrier : Pacific Bell
Last Validated : 2021-01-23
Unknown
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Report : Hey, I'm now up to 19 calls from this nu... See More
(510) 438-2133People also searched - 5104382133landline and VOIP
Carrier : Pacific Bell
Last Validated : 2021-04-26
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(510) 438-2134People also searched - 5104382134landline and VOIP
Carrier : Pacific Bell
Last Validated : 2021-11-20
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(510) 438-2135People also searched - 5104382135landline and VOIP
Carrier : Pacific Bell
Last Validated : 2010-12-19
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(510) 438-2136People also searched - 5104382136landline and VOIP
Carrier : Pacific Bell
Last Validated : 2018-04-30
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(510) 438-2137People also searched - 5104382137landline and VOIP
Carrier : Pacific Bell
Last Validated : 2013-04-06
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(510) 438-2138People also searched - 5104382138landline and VOIP
Carrier : Pacific Bell
Last Validated : 2014-11-05
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(510) 438-2139People also searched - 5104382139landline and VOIP
Carrier : Pacific Bell
Last Validated : 2010-06-12
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(510) 438-2140People also searched - 5104382140landline and VOIP
Carrier : Pacific Bell
Last Validated : 2010-03-13
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(510) 438-2141People also searched - 5104382141landline and VOIP
Carrier : Pacific Bell
Last Validated : 2020-04-08
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(510) 438-2142People also searched - 5104382142landline and VOIP
Carrier : Pacific Bell
Last Validated : 2023-04-07
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(510) 438-2143People also searched - 5104382143landline and VOIP
Carrier : Pacific Bell
Last Validated : 2021-01-25
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(510) 438-2144People also searched - 5104382144landline and VOIP
Carrier : Pacific Bell
Last Validated : 2019-02-20
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(510) 438-2145People also searched - 5104382145landline and VOIP
Carrier : Pacific Bell
Last Validated : 2012-09-09
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(510) 438-2146People also searched - 5104382146landline and VOIP
Carrier : Pacific Bell
Last Validated : 2016-09-04
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(510) 438-2147People also searched - 5104382147landline and VOIP
Carrier : Pacific Bell
Last Validated : 2012-05-02
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(510) 438-2148People also searched - 5104382148landline and VOIP
Carrier : Pacific Bell
Last Validated : 2013-06-30
Unknown
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Report : Constantly calls
(510) 438-2149People also searched - 5104382149landline and VOIP
Carrier : Pacific Bell
Last Validated : 2022-02-10
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(510) 438-2150People also searched - 5104382150landline and VOIP
Carrier : Pacific Bell
Last Validated : 2012-11-16
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(510) 438-2151People also searched - 5104382151landline and VOIP
Carrier : Pacific Bell
Last Validated : 2023-08-09
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(510) 438-2152People also searched - 5104382152landline and VOIP
Carrier : Pacific Bell
Last Validated : 2018-03-13
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(510) 438-2153People also searched - 5104382153landline and VOIP
Carrier : Pacific Bell
Last Validated : 2018-06-28
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(510) 438-2154People also searched - 5104382154landline and VOIP
Carrier : Pacific Bell
Last Validated : 2024-12-02
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(510) 438-2155People also searched - 5104382155landline and VOIP
Carrier : Pacific Bell
Last Validated : 2018-01-28
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(510) 438-2156People also searched - 5104382156landline and VOIP
Carrier : Pacific Bell
Last Validated : 2018-07-16
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(510) 438-2157People also searched - 5104382157landline and VOIP
Carrier : Pacific Bell
Last Validated : 2021-01-22
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(510) 438-2158People also searched - 5104382158landline and VOIP
Carrier : Pacific Bell
Last Validated : 2011-03-06
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(510) 438-2159People also searched - 5104382159landline and VOIP
Carrier : Pacific Bell
Last Validated : 2021-10-11
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(510) 438-2160People also searched - 5104382160landline and VOIP
Carrier : Pacific Bell
Last Validated : 2022-07-02
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(510) 438-2161People also searched - 5104382161landline and VOIP
Carrier : Pacific Bell
Last Validated : 2013-07-21
Neutral
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Report : Received this msg. “Mollie been diagno... See More
(510) 438-2162People also searched - 5104382162landline and VOIP
Carrier : Pacific Bell
Last Validated : 2021-12-14
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(510) 438-2163People also searched - 5104382163landline and VOIP
Carrier : Pacific Bell
Last Validated : 2017-11-18
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(510) 438-2164People also searched - 5104382164landline and VOIP
Carrier : Pacific Bell
Last Validated : 2015-09-15
Unknown
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Report : After I ran the number through both Yaho... See More
(510) 438-2165People also searched - 5104382165landline and VOIP
Carrier : Pacific Bell
Last Validated : 2013-10-26
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(510) 438-2166People also searched - 5104382166landline and VOIP
Carrier : Pacific Bell
Last Validated : 2019-10-03
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(510) 438-2167People also searched - 5104382167landline and VOIP
Carrier : Pacific Bell
Last Validated : 2022-04-26
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(510) 438-2168People also searched - 5104382168landline and VOIP
Carrier : Pacific Bell
Last Validated : 2020-11-25
Neutral
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Report : Got a text stating to call 850-390-4724 ... See More
(510) 438-2169People also searched - 5104382169landline and VOIP
Carrier : Pacific Bell
Last Validated : 2016-05-18
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(510) 438-2170People also searched - 5104382170landline and VOIP
Carrier : Pacific Bell
Last Validated : 2013-11-01
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(510) 438-2171People also searched - 5104382171landline and VOIP
Carrier : Pacific Bell
Last Validated : 2010-08-31
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(510) 438-2172People also searched - 5104382172landline and VOIP
Carrier : Pacific Bell
Last Validated : 2024-11-12
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(510) 438-2173People also searched - 5104382173landline and VOIP
Carrier : Pacific Bell
Last Validated : 2011-04-09
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(510) 438-2174People also searched - 5104382174landline and VOIP
Carrier : Pacific Bell
Last Validated : 2026-02-24
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(510) 438-2175People also searched - 5104382175landline and VOIP
Carrier : Pacific Bell
Last Validated : 2011-07-29
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(510) 438-2176People also searched - 5104382176landline and VOIP
Carrier : Pacific Bell
Last Validated : 2013-03-16
Neutral
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Report : Debt Collector - Account Control Technol... See More
(510) 438-2177People also searched - 5104382177landline and VOIP
Carrier : Pacific Bell
Last Validated : 2025-02-14
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(510) 438-2178People also searched - 5104382178landline and VOIP
Carrier : Pacific Bell
Last Validated : 2020-02-14
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(510) 438-2179People also searched - 5104382179landline and VOIP
Carrier : Pacific Bell
Last Validated : 2016-11-18
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(510) 438-2180People also searched - 5104382180landline and VOIP
Carrier : Pacific Bell
Last Validated : 2022-11-30
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(510) 438-2181People also searched - 5104382181landline and VOIP
Carrier : Pacific Bell
Last Validated : 2025-02-28
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(510) 438-2182People also searched - 5104382182landline and VOIP
Carrier : Pacific Bell
Last Validated : 2025-10-28
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(510) 438-2183People also searched - 5104382183landline and VOIP
Carrier : Pacific Bell
Last Validated : 2025-04-20
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(510) 438-2184People also searched - 5104382184landline and VOIP
Carrier : Pacific Bell
Last Validated : 2025-03-06
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(510) 438-2185People also searched - 5104382185landline and VOIP
Carrier : Pacific Bell
Last Validated : 2010-02-20
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(510) 438-2186People also searched - 5104382186landline and VOIP
Carrier : Pacific Bell
Last Validated : 2012-11-21
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(510) 438-2187People also searched - 5104382187landline and VOIP
Carrier : Pacific Bell
Last Validated : 2014-12-11
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(510) 438-2188People also searched - 5104382188landline and VOIP
Carrier : Pacific Bell
Last Validated : 2013-02-08
Unknown
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Report : Call your local FBI immediately! 681-66... See More
(510) 438-2189People also searched - 5104382189landline and VOIP
Carrier : Pacific Bell
Last Validated : 2016-02-04
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(510) 438-2190People also searched - 5104382190landline and VOIP
Carrier : Pacific Bell
Last Validated : 2010-11-18
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(510) 438-2191People also searched - 5104382191landline and VOIP
Carrier : Pacific Bell
Last Validated : 2020-09-23
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(510) 438-2192People also searched - 5104382192landline and VOIP
Carrier : Pacific Bell
Last Validated : 2011-05-25
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(510) 438-2193People also searched - 5104382193landline and VOIP
Carrier : Pacific Bell
Last Validated : 2017-06-08
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(510) 438-2194People also searched - 5104382194landline and VOIP
Carrier : Pacific Bell
Last Validated : 2016-06-14
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(510) 438-2195People also searched - 5104382195landline and VOIP
Carrier : Pacific Bell
Last Validated : 2019-01-03
Unknown
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Report : Picked up phone and there was silence on... See More
(510) 438-2196People also searched - 5104382196landline and VOIP
Carrier : Pacific Bell
Last Validated : 2014-09-28
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(510) 438-2197People also searched - 5104382197landline and VOIP
Carrier : Pacific Bell
Last Validated : 2013-09-23
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(510) 438-2198People also searched - 5104382198landline and VOIP
Carrier : Pacific Bell
Last Validated : 2024-11-13
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(510) 438-2199People also searched - 5104382199landline and VOIP
Carrier : Pacific Bell
Last Validated : 2022-10-05
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The 510-438-21XX 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 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.

510-438-2122
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510-438-2189
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510-438-2170
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510-438-2181
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510-438-2177
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510-438-2187
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510-438-2173
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510-438-2138
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510-438-2133
ReportPacific Bell
510-438-2175
ReportPacific Bell
510-438-2169
ReportPacific Bell
510-438-2131
ReportPacific Bell
510-438-2127
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510-438-2125
ReportPacific Bell
510-438-2185
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510-438-2194
ReportPacific Bell

Most searched numbers

Cell
All TimeThis Month
510-438-2124 First seen 2024-03-12510-438-2111 First seen 2011-03-17
510-438-2127 First seen 2020-03-09510-438-2152 First seen 2025-08-08
510-438-2139 First seen 2018-05-31510-438-2112 First seen 2011-09-25
510-438-2132 First seen 2016-02-25510-438-2190 First seen 2010-02-02
510-438-2157 First seen 2012-05-19510-438-2178 First seen 2012-12-11
Landline
All TimeThis Month
510-438-2133 First seen 2024-12-19510-438-2198 First seen 2019-11-27
510-438-2182 First seen 2019-02-08510-438-2189 First seen 2023-05-13
510-438-2162 First seen 2017-09-13510-438-2197 First seen 2017-03-22
510-438-2196 First seen 2023-11-22510-438-2125 First seen 2023-05-21
510-438-2173 First seen 2024-02-26510-438-2178 First seen 2017-09-26

Cities With coverage

CITY LIST
Alameda
Albany
Berkeley
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Hayward
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Oakland
Richmond
San Francisco
San Jose
San Leandro
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Union City
Walnut Creek