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510-423

You are reviewing the Area Code (NPA/NXX) report for 510-423. Did you mean to search the SMS short code 510423?

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Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Examples: 206-739-5800, 206, 206-739, 48369
Raw Number510423
Basic Format510-423
NPA (Area Code)510
NXX423

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
510-423-0XXX8826LEVEL 3 COMMUNICATIONS, LLC - CAOKLD BKLYAS07/29/2009OAKLAND:BERKELEY DACAWC08/10/2009
510-423-1XXX6529T-MOBILE USA, INC.OKLD BKLYAS07/08/2009OAKLAND:BERKELEY DACAWC07/20/2009
510-423-2XXX6529T-MOBILE USA, INC.OKLD BKLYAS07/08/2009OAKLAND:BERKELEY DACAWC07/20/2009
510-423-3XXX981EBANDWIDTH.COM CLEC, LLC - CAOKLD BKLYAS01/27/2010OAKLAND:BERKELEY DACAWC02/26/2010
510-423-4XXX515JIP HORIZON LLCOKLD BKLYAS07/31/2013OAKLAND:BERKELEY DACAWC08/26/2013
510-423-5XXX649CONVOY, LLC - CAOKLD BKLYAS01/02/2009OAKLAND:BERKELEY DACAWC01/17/2009
510-423-6XXX6010NEW CINGULAR WIRELESS PCS, LLCOKLD BKLYAS02/10/2025OAKLAND:BERKELEY DACAWC03/10/2025
510-423-7XXX6010NEW CINGULAR WIRELESS PCS, LLCOKLD BKLYAS02/10/2025OAKLAND:BERKELEY DACAWC03/10/2025
510-423-8XXX6006CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAOKLD BKLYAS05/25/2011OAKLAND:BERKELEY DACAWC06/21/2011
510-423-9XXX829JPAETEC ITEL, LLCOKLD BKLYAS11/10/2008OAKLAND:BERKELEY DACAWC01/16/2009
510-423-XXXX829JPAETEC ITEL, LLCOKLD BKLYAS11/07/2008OAKLAND:BERKELEY DACA

Business/Government Phones on the 510-423 Prefix

PhoneNameAddress
510-423-0695Solar Ray Auto Glass Repair
510-423-1509Natashia's Child Care
510-423-1674Home And Temple Design
510-423-1851MDS Home Improvement
510-423-2133Lucky Dog Construction, Inc
510-423-2221Sundance Tree Experts
510-423-2221Sundance Tree Experts
510-423-2596B & B Horticulture
510-423-3006Dimensional Industries
510-423-3141Cali'z Plumbing, Inc.
510-423-3264Native Renewables Inc
510-423-3416Melanated Empress Lane
510-423-3667Digifli
510-423-3848Argonaut Garage
510-423-3900Cintas Uniform Services
510-423-4270City Storage
510-423-6339Atticstar.com
510-423-8772Oakland Floats
510-423-0400Homeroom1313 Ninth Street US

Reports

Anonymous User from , CA

January 27, 2026 at 9:07 PM

510-423-6840 reported as a Live Voice or Other. Received on January 27, 2026 at 10:39 AM.
Call for No Subject Provided

Anonymous User from Pinole, California

December 17, 2025 at 2:01 PM

510-423-0290 reported as a Robocall. Received on December 17, 2025 at 10:43 AM.

Anonymous User from El Sobrante, California

December 15, 2025 at 9:25 PM

510-423-3593 reported as a unwanted call. Received on December 15, 2025 at 2:18 PM.

Anonymous User from Boynton Beach, Florida

November 18, 2025 at 11:46 AM

510-423-4959 reported as a Robocall. Received on November 18, 2025 at 11:18 AM.

Anonymous User from Fremont, California

August 15, 2025 at 11:49 AM

510-423-3486 reported as a Robocall. Received on August 6, 2025 at 2:19 PM.
Call for Medical & prescriptions

Anonymous User from Roanoke, Virginia

June 23, 2025 at 2:32 PM

510-423-4716 reported as a Robocall. Received on June 23, 2025 at 1:50 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , CA

May 14, 2025 at 4:54 PM

510-423-5935 reported as a Robocall. Received on May 14, 2025 at 12:00 AM.
Call for Medical & prescriptions

Anonymous User from Augusta, Georgia

May 14, 2025 at 2:04 PM

510-423-5787 reported as a Live Voice or Other. Received on May 14, 2025 at 1:56 PM.

Anonymous User from , CA

February 26, 2025 at 1:00 PM

510-423-3033 reported as a Robocall. Received on February 26, 2025 at 8:52 AM.

Anonymous User from Mount Pleasant, SC

November 25, 2024 at 12:25 PM

510-423-3918 reported as a Text Message. Received on November 25, 2024 at 7:31 PM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Vallejo, California

June 25, 2024 at 9:36 AM

510-423-4596 reported as a Robocall. Received on June 25, 2024 at 6:00 AM.

Anonymous User from , CA

January 15, 2024 at 10:57 AM

510-423-2860 reported as a unwanted call. Received on January 15, 2024 at 7:04 AM.

Anonymous User from Piedmont, California

December 22, 2023 at 11:51 AM

510-423-5386 reported as a unwanted call. Received on December 22, 2023 at 8:48 AM.
Call for Dropped call or no message

Anonymous User from Newark, California

September 18, 2023 at 1:08 PM

510-423-7586 reported as a Robocall. Received on September 18, 2023 at 10:06 AM.
Call for Medical & prescriptions

Anonymous User from , CA

September 13, 2023 at 3:11 PM

510-423-6498 reported as a Live Voice or Other. Received on September 13, 2023 at 11:29 AM.
Call for No Subject Provided

Anonymous User from Frankfort, Illinois

June 12, 2023 at 12:53 PM

510-423-4492 reported as a Robocall. Received on June 12, 2023 at 11:49 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Burleson, Texas

June 6, 2023 at 9:25 AM

510-423-4919 reported as a Robocall. Received on May 23, 2023 at 12:29 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Anthem Az, Arizona

June 3, 2023 at 1:42 PM

510-423-4734 reported as a Robocall. Received on June 2, 2023 at 11:06 AM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , IL

May 31, 2023 at 11:53 AM

510-423-4850 reported as a Live Voice or Other. Received on May 31, 2023 at 10:41 AM.
Call for No Subject Provided

Anonymous User from Burleson, Texas

May 30, 2023 at 9:50 AM

510-423-4919 reported as a Robocall. Received on May 23, 2023 at 9:16 AM.

Anonymous User from San Lorenzo, California

May 25, 2023 at 12:07 PM

510-423-9229 reported as a Live Voice or Other. Received on May 23, 2023 at 7:11 AM.

Anonymous User from , IN

May 22, 2023 at 5:03 PM

510-423-4498 reported as a Live Voice or Other. Received on May 22, 2023 at 12:00 AM.

Anonymous User from Blue Springs, Missouri

May 8, 2023 at 11:15 AM

510-423-4795 reported as a Robocall. Received on May 8, 2023 at 10:12 AM.

Anonymous User from , CA

May 5, 2023 at 7:26 PM

510-423-9590 reported as a Live Voice or Other. Received on May 5, 2023 at 1:23 PM.
Call for No Subject Provided

Anonymous User from Tacoma, Washington

May 1, 2023 at 3:06 PM

510-423-4544 reported as a Live Voice or Other. Received on May 1, 2023 at 12:00 PM.

Anonymous User from , OR

April 30, 2023 at 2:18 AM

510-423-4721 reported as a Live Voice or Other. Received on March 27, 2023 at 11:26 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Freeport, Pennsylvania

March 15, 2023 at 11:22 AM

510-423-4906 reported as a Live Voice or Other. Received on March 14, 2023 at 4:13 PM.

Anonymous User from Richmond, California

January 20, 2023 at 5:48 PM

510-423-8230 reported as a Robocall. Received on January 20, 2023 at 10:41 AM.
Call for Medical & prescriptions

Anonymous User from Hayward, California

December 16, 2022 at 11:54 PM

510-423-4460 reported as a unwanted call. Received on December 16, 2022 at 3:38 PM.
Call for No Subject Provided

Anonymous User from Hayward, California

December 16, 2022 at 11:50 PM

510-423-4459 reported as a unwanted call. Received on December 16, 2022 at 12:49 PM.
Call for No Subject Provided

Anonymous User from Hayward, California

December 16, 2022 at 11:44 PM

510-423-4459 reported as a unwanted call. Received on December 16, 2022 at 10:11 AM.
Call for No Subject Provided

Anonymous User from Hayward, California

December 16, 2022 at 12:43 AM

510-423-4459 reported as a unwanted call. Received on December 15, 2022 at 9:14 AM.
Call for No Subject Provided

Anonymous User from Hayward, California

December 15, 2022 at 3:11 PM

510-423-4459 reported as a unwanted call. Received on December 15, 2022 at 9:14 AM.
Call for No Subject Provided

Anonymous User from Hayward, California

November 16, 2022 at 2:55 PM

510-423-4459 reported as a unwanted call. Received on November 15, 2022 at 1:34 PM.
Call for No Subject Provided

Anonymous User from Hayward, California

November 16, 2022 at 2:54 PM

510-423-4459 reported as a unwanted call. Received on November 15, 2022 at 12:32 PM.
Call for No Subject Provided

Anonymous User from Hayward, California

November 16, 2022 at 2:53 PM

510-423-4458 reported as a unwanted call. Received on November 15, 2022 at 10:33 AM.
Call for No Subject Provided

Anonymous User from Hayward, California

November 15, 2022 at 12:26 AM

510-423-4459 reported as a unwanted call. Received on November 14, 2022 at 2:45 PM.
Call for No Subject Provided

Anonymous User from Oakland, CA

October 24, 2022 at 7:52 PM

510-423-5291 reported as a Live Voice. Received on October 24, 2022 at 12:30 PM.
Unwanted call for Auto Warranty Services
Caller ID indicated they called from 510-322-2185
Contacted via Wired

Anonymous User from Hayward, California

October 19, 2022 at 10:57 PM

510-423-4460 reported as a unwanted call. Received on October 19, 2022 at 3:26 PM.
Call for No Subject Provided

Anonymous User from Torrance, California

October 10, 2022 at 6:52 PM

510-423-4829 reported as a Robocall. Received on October 10, 2022 at 9:59 AM.
Call for Dropped call or no message

Anonymous User from Benton, Kentucky

October 10, 2022 at 3:41 PM

510-423-4829 reported as a Robocall. Received on October 10, 2022 at 12:03 PM.

Anonymous User from Oakland, California

September 16, 2022 at 5:33 PM

510-423-0721 reported as a Robocall. Received on September 16, 2022 at 2:27 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from El Cerrito, California

September 2, 2022 at 2:46 PM

510-423-4457 reported as a Live Voice or Other. Received on September 2, 2022 at 9:15 AM.
Call for Charities

Anonymous User from , CA

July 15, 2022 at 6:17 PM

510-423-4112 reported as a Live Voice or Other. Received on July 12, 2022 at 2:13 PM.

Anonymous User from , CA

July 15, 2022 at 12:17 PM

510-423-4610 reported as a Robocall. Received on July 15, 2022 at 9:12 AM.
Call for No Subject Provided

Anonymous User from Walnut Creek, California

July 7, 2022 at 7:40 PM

510-423-4471 reported as a unwanted call. Received on July 7, 2022 at 9:11 AM.

Anonymous User from Walnut Creek, California

July 7, 2022 at 7:36 PM

510-423-4417 reported as a Live Voice or Other. Received on July 4, 2022 at 9:07 AM.

Anonymous User from Walnut Creek, California

July 7, 2022 at 7:27 PM

510-423-4417 reported as a Robocall. Received on July 5, 2022 at 9:00 AM.

Anonymous User from Oakland, California

June 29, 2022 at 2:55 PM

510-423-4632 reported as a Robocall. Received on June 29, 2022 at 11:29 AM.
Call for Warranties & protection plans

Anonymous User from Manteca, California

June 22, 2022 at 11:26 AM

510-423-4414 reported as a Live Voice or Other. Received on June 18, 2022 at 10:14 AM.

Anonymous User from , CA

June 16, 2022 at 5:00 PM

510-423-4940 reported as a unwanted call. Received on June 15, 2022 at 11:53 AM.
Call for Warranties & protection plans

Anonymous User from , CA

June 10, 2022 at 3:54 PM

510-423-4520 reported as a unwanted call. Received on June 10, 2022 at 12:52 PM.
Call for No Subject Provided

Anonymous User from West Palm Beach, FL

March 25, 2022 at 4:09 PM

510-423-4709 reported as a Live Voice. Received on March 25, 2022 at 11:54 AM.
Unwanted call for Health Insurance Services
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Fremont, CA

February 17, 2022 at 12:56 AM

None reported as a Live Voice. Received on February 17, 2022 at 3:38 PM.
Unwanted call for Computer Other Services
Caller ID indicated they called from 510-423-2954
Contacted via Internet (VOIP)

Anonymous User from Milpitas, CA

September 28, 2021 at 7:43 PM

510-423-4675 reported as a Live Voice. Received on September 28, 2021 at 11:28 AM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , ID

January 24, 2017 at 10:32 PM

None reported as a Prerecorded Voice. Received on January 24, 2017 at 12:00 AM.
Unwanted call for unknown
Caller ID indicated they called from 510-423-4357
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , CA

March 5, 2016 at 9:07 PM

reported as a Live Voice. Received on March 5, 2016 at 11:32 AM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 510-423-6235
Contacted via Internet (VOIP)

Anonymous User from , CA

February 20, 2016 at 7:21 PM

reported as a Live Voice. Received on February 20, 2016 at 9:50 AM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 510-423-6235
Contacted via Internet (VOIP)

Anonymous User from , CA

February 19, 2016 at 6:56 PM

reported as a Live Voice. Received on February 19, 2016 at 9:47 AM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 510-423-6235
Contacted via Internet (VOIP)

Anonymous User from , WA

August 3, 2015 at 11:22 PM

510-423-5996 reported as a Prerecorded Voice. Received on August 3, 2015 at 3:10 PM.
Robocall for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , FL

December 8, 2014 at 11:47 PM

510-423-6162 reported as a Prerecorded Voice. Received on December 8, 2014 at 5:30 PM.
Robocall for unknown
Contacted via Wired

Most 'popular' numbers on this prefix:

510-423-0XXX: 510-423-0300 | 510-423-0303 | 510-423-0309 | 510-423-0370 | 510-423-0373 | 510-423-0377 | 510-423-0601 | 510-423-0602 | 510-423-0606 | 510-423-0691 | 510-423-0692 | 510-423-0699 | 510-423-0702 | 510-423-0706 | 510-423-0707 | 510-423-0721 | 510-423-0722 | 510-423-0728 |
510-423-1XXX: 510-423-1500 | 510-423-1501 | 510-423-1506 | 510-423-1508 | 510-423-1670 | 510-423-1678 | 510-423-1679 | 510-423-1700 | 510-423-1747 | 510-423-1762 | 510-423-1764 | 510-423-1767 | 510-423-1777 | 510-423-1800 | 510-423-1852 | 510-423-1853 | 510-423-1854 | 510-423-1887 |
510-423-2XXX: 510-423-2135 | 510-423-2137 | 510-423-2139 | 510-423-2169 | 510-423-2187 | 510-423-2188 | 510-423-2200 | 510-423-2222 | 510-423-2224 | 510-423-2225 | 510-423-2233 | 510-423-2262 | 510-423-2400 | 510-423-2430 | 510-423-2433 | 510-423-2434 | 510-423-2447 | 510-423-2491 | 510-423-2500 | 510-423-2525 | 510-423-2562 | 510-423-2800 | 510-423-2860 | 510-423-2862 | 510-423-2867 | 510-423-2888 | 510-423-2950 | 510-423-2953 | 510-423-2954 | 510-423-2992 | 510-423-2995 | 510-423-2998 |
510-423-3XXX: 510-423-3000 | 510-423-3003 | 510-423-3008 | 510-423-3030 | 510-423-3062 | 510-423-3140 | 510-423-3141 | 510-423-3145 | 510-423-3196 | 510-423-3197 | 510-423-3198 | 510-423-3236 | 510-423-3256 | 510-423-3258 | 510-423-3260 | 510-423-3262 | 510-423-3269 | 510-423-3400 | 510-423-3411 | 510-423-3414 | 510-423-3415 | 510-423-3443 | 510-423-3600 | 510-423-3651 | 510-423-3658 | 510-423-3663 | 510-423-3666 | 510-423-3667 | 510-423-3800 | 510-423-3840 | 510-423-3845 | 510-423-3847 | 510-423-3900 | 510-423-3906 | 510-423-3910 | 510-423-3911 | 510-423-3915 | 510-423-3998 |
510-423-4XXX: 510-423-4000 | 510-423-4003 | 510-423-4007 | 510-423-4040 | 510-423-4062 | 510-423-4111 | 510-423-4115 | 510-423-4118 | 510-423-4141 | 510-423-4142 | 510-423-4197 | 510-423-4241 | 510-423-4242 | 510-423-4244 | 510-423-4270 | 510-423-4275 | 510-423-4279 | 510-423-4343 | 510-423-4350 | 510-423-4355 | 510-423-4357 | 510-423-4400 | 510-423-4409 | 510-423-4452 | 510-423-4454 | 510-423-4455 | 510-423-4500 | 510-423-4520 | 510-423-4523 | 510-423-4524 | 510-423-4545 | 510-423-4600 | 510-423-4630 | 510-423-4636 | 510-423-4637 | 510-423-4700 | 510-423-4706 | 510-423-4707 | 510-423-4800 | 510-423-4820 | 510-423-4822 | 510-423-4823 | 510-423-4887 | 510-423-4889 | 510-423-4945 | 510-423-4947 | 510-423-4949 | 510-423-4992 | 510-423-4997 | 510-423-4998 |
510-423-5XXX: 510-423-5263 | 510-423-5266 | 510-423-5268 | 510-423-5290 | 510-423-5296 | 510-423-5299 | 510-423-5300 | 510-423-5380 | 510-423-5385 | 510-423-5387 | 510-423-5990 | 510-423-5996 | 510-423-5997 |
510-423-6XXX: 510-423-6162 | 510-423-6163 | 510-423-6166 | 510-423-6232 | 510-423-6234 | 510-423-6237 | 510-423-6246 | 510-423-6247 | 510-423-6248 | 510-423-6332 | 510-423-6333 | 510-423-6336 | 510-423-6363 | 510-423-6369 | 510-423-6446 | 510-423-6452 | 510-423-6453 | 510-423-6490 | 510-423-6495 | 510-423-6499 | 510-423-6910 | 510-423-6911 | 510-423-6917 | 510-423-6995 | 510-423-6996 | 510-423-6997 |
510-423-7XXX: 510-423-7500 | 510-423-7507 | 510-423-7580 | 510-423-7581 | 510-423-7583 |
510-423-8XXX: 510-423-8153 | 510-423-8156 | 510-423-8157 | 510-423-8181 | 510-423-8187 | 510-423-8197 | 510-423-8230 | 510-423-8232 | 510-423-8237 | 510-423-8247 | 510-423-8258 | 510-423-8282 | 510-423-8701 | 510-423-8705 | 510-423-8771 | 510-423-8777 | 510-423-8778 | 510-423-8787 |
510-423-9XXX: 510-423-9222 | 510-423-9226 | 510-423-9229 | 510-423-9500 | 510-423-9550 | 510-423-9591 | 510-423-9595 | 510-423-9599 |