Phone Number 510-423-21XX Information and Location Details

The 510-423-21XX 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.

TOTALS for the MONTH of May

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510-423-2186 on 2026-05-21
510-423-2177 on 2026-05-22
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510-423-2189 on 2026-05-21
510-423-2147 on 2026-05-25
510-423-2114 on 2026-05-20

Most Searched Area Codes:

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510-423 21XX ACTIVE PHONE NUMBERS DIRECTORY

Search for owner information and other data related to any phone number below.

(510) 423-2100People also searched - 5104232100 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2010-06-06

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(510) 423-2101People also searched - 5104232101 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2017-03-11

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(510) 423-2102People also searched - 5104232102 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2016-05-02

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(510) 423-2103People also searched - 5104232103 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2020-11-09

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(510) 423-2104People also searched - 5104232104 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2010-12-24

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(510) 423-2105People also searched - 5104232105 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2017-02-15

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(510) 423-2106People also searched - 5104232106 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2018-01-03

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(510) 423-2107People also searched - 5104232107 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2014-12-08

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(510) 423-2108People also searched - 5104232108 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2010-08-16

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(510) 423-2109People also searched - 5104232109 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2014-12-04

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(510) 423-2110People also searched - 5104232110 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2022-07-20

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(510) 423-2111People also searched - 5104232111 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2025-12-07

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(510) 423-2112People also searched - 5104232112 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2019-02-26

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(510) 423-2113People also searched - 5104232113 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2019-02-12

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(510) 423-2114People also searched - 5104232114 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2021-10-18

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(510) 423-2115People also searched - 5104232115 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2024-01-13

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(510) 423-2116People also searched - 5104232116 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2014-12-08

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(510) 423-2117People also searched - 5104232117 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2017-08-27

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(510) 423-2118People also searched - 5104232118 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2010-10-23
Unknown

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Report : Call your local FBI immediately! 681-66... See More

(510) 423-2119People also searched - 5104232119 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2013-10-21

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(510) 423-2120People also searched - 5104232120 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2013-01-24

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(510) 423-2121People also searched - 5104232121 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2020-09-24

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(510) 423-2122People also searched - 5104232122 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2025-07-11
Unknown

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Report : Picked up phone and there was silence on... See More

(510) 423-2123People also searched - 5104232123 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2023-09-11

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(510) 423-2124People also searched - 5104232124 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2017-02-02
Dangerous

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Report : Same as the others - they call my phone ... See More

(510) 423-2125People also searched - 5104232125 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2020-01-31

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(510) 423-2126People also searched - 5104232126 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2013-09-01

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(510) 423-2127People also searched - 5104232127 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2015-07-25

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(510) 423-2128People also searched - 5104232128 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2021-11-28

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(510) 423-2129People also searched - 5104232129 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2016-09-24

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(510) 423-2130People also searched - 5104232130 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2021-03-27
Unknown

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Report : hey

(510) 423-2131People also searched - 5104232131 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2019-09-27

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(510) 423-2132People also searched - 5104232132 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2020-12-20

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(510) 423-2133People also searched - 5104232133 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2020-02-03
Unknown

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Report : Left no message.

(510) 423-2134People also searched - 5104232134 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2022-02-18

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(510) 423-2135People also searched - 5104232135 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2011-12-31

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(510) 423-2136People also searched - 5104232136 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2016-01-14
Unknown

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Report : Case number being sued

(510) 423-2137People also searched - 5104232137 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2015-05-04

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(510) 423-2138People also searched - 5104232138 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2013-06-28

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(510) 423-2139People also searched - 5104232139 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2017-08-19

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(510) 423-2140People also searched - 5104232140 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2017-12-10

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(510) 423-2141People also searched - 5104232141 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2016-02-20

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(510) 423-2142People also searched - 5104232142 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2012-05-05
Neutral

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Report : Debt Collector - Account Control Technol... See More

(510) 423-2143People also searched - 5104232143 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2019-07-26

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(510) 423-2144People also searched - 5104232144 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2010-04-07
Neutral

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Report : Received this msg. “Mollie been diagno... See More

(510) 423-2145People also searched - 5104232145 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2020-06-17

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(510) 423-2146People also searched - 5104232146 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2021-01-09

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(510) 423-2147People also searched - 5104232147 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2018-04-26

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(510) 423-2148People also searched - 5104232148 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2022-06-17

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(510) 423-2149People also searched - 5104232149 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2014-07-09

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(510) 423-2150People also searched - 5104232150 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2025-07-21

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(510) 423-2151People also searched - 5104232151 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2023-01-18

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(510) 423-2152People also searched - 5104232152 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2014-07-10
Unknown

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Report : Hey, I'm now up to 19 calls from this nu... See More

(510) 423-2153People also searched - 5104232153 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2012-02-10
Unknown

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Report : I didn't answer. No message.

(510) 423-2154People also searched - 5104232154 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2017-07-12

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(510) 423-2155People also searched - 5104232155 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2010-08-03

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(510) 423-2156People also searched - 5104232156 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2017-02-06

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(510) 423-2157People also searched - 5104232157 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2016-03-13

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(510) 423-2158People also searched - 5104232158 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2014-01-29

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(510) 423-2159People also searched - 5104232159 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2012-10-25

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(510) 423-2160People also searched - 5104232160 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2014-09-22

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(510) 423-2161People also searched - 5104232161 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2024-11-08
Neutral

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Report : Got a text stating to call 850-390-4724 ... See More

(510) 423-2162People also searched - 5104232162 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2020-01-05

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(510) 423-2163People also searched - 5104232163 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2017-08-04

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(510) 423-2164People also searched - 5104232164 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2024-05-28
Dangerous

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Report : Unsolicited call stating that my doctor ... See More

(510) 423-2165People also searched - 5104232165 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2024-07-17
Unknown

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Report : Several calls from 866-317-1292.

(510) 423-2166People also searched - 5104232166 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2014-07-01

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(510) 423-2167People also searched - 5104232167 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2026-01-27

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(510) 423-2168People also searched - 5104232168 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2010-03-30

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(510) 423-2169People also searched - 5104232169 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2010-09-02
Unknown

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Report : They called my mobile phone.

(510) 423-2170People also searched - 5104232170 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2020-06-01

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(510) 423-2171People also searched - 5104232171 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2018-12-01

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(510) 423-2172People also searched - 5104232172 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2011-11-05

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(510) 423-2173People also searched - 5104232173 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2026-02-27

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(510) 423-2174People also searched - 5104232174 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2011-08-21

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(510) 423-2175People also searched - 5104232175 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2011-07-26

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(510) 423-2176People also searched - 5104232176 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2018-10-11

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(510) 423-2177People also searched - 5104232177 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2015-03-23

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(510) 423-2178People also searched - 5104232178 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2022-10-16
Unknown

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Report : Caller ID says "TOLL FREE CALL". Left n... See More

(510) 423-2179People also searched - 5104232179 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2020-02-26

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(510) 423-2180People also searched - 5104232180 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2020-07-08

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(510) 423-2181People also searched - 5104232181 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2022-12-31

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(510) 423-2182People also searched - 5104232182 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2018-01-08

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(510) 423-2183People also searched - 5104232183 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2025-01-21

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(510) 423-2184People also searched - 5104232184 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2017-02-24

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(510) 423-2185People also searched - 5104232185 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2024-03-15

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(510) 423-2186People also searched - 5104232186 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2010-12-30

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(510) 423-2187People also searched - 5104232187 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2010-09-06

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(510) 423-2188People also searched - 5104232188 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2024-03-30

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(510) 423-2189People also searched - 5104232189 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2011-01-16

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(510) 423-2190People also searched - 5104232190 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2013-03-08

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(510) 423-2191People also searched - 5104232191 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2015-10-28

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(510) 423-2192People also searched - 5104232192 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2012-10-10

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(510) 423-2193People also searched - 5104232193 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2020-12-03

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(510) 423-2194People also searched - 5104232194 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2020-12-07

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(510) 423-2195People also searched - 5104232195 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2019-10-25

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(510) 423-2196People also searched - 5104232196 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2021-09-02

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(510) 423-2197People also searched - 5104232197 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2024-11-17
Unknown

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Report : Caller ID shows "SCAM LIKELY".I pressed ... See More

(510) 423-2198People also searched - 5104232198 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2013-12-22

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(510) 423-2199People also searched - 5104232199 landline and VOIP

landline and VOIP

Carrier : Paetec Communications
Last Validated : 2011-05-25
Unknown

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Report : Constantly calls

The 510-423-21XX 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.

510-423-2172
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510-423-2187
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510-423-2112
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510-423-2176
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510-423-2186
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510-423-2121
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Most searched numbers

Cell
All Time	This Month
510-423-2171 First seen 2025-07-10	510-423-2137 First seen 2023-05-12
510-423-2173 First seen 2019-07-19	510-423-2127 First seen 2017-07-03
510-423-2121 First seen 2011-03-24	510-423-2118 First seen 2025-04-07
510-423-2112 First seen 2014-07-22	510-423-2152 First seen 2017-04-06
510-423-2198 First seen 2021-09-25	510-423-2168 First seen 2024-02-01

Landline
All Time	This Month
510-423-2161 First seen 2025-09-13	510-423-2163 First seen 2014-03-15
510-423-2141 First seen 2011-05-03	510-423-2166 First seen 2011-01-17
510-423-2176 First seen 2024-11-05	510-423-2155 First seen 2010-11-21
510-423-2199 First seen 2022-10-24	510-423-2132 First seen 2010-06-08
510-423-2193 First seen 2021-11-11	510-423-2181 First seen 2016-04-24

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

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