510-257

You are reviewing the Area Code (NPA/NXX) report for 510-257. Did you mean to search the SMS short code 510257?

North American Phone Intelligence

Search a phone number, area code, exchange, or short code

Paste raw digits, a formatted phone number, an area code, an NPA-NXX block, or a short code. US and Canada phone lookups route automatically, and international iMessage checks are available separately.

Phone Lookup Top Complaints Area Codes NPA-NXX iMessage

Raw Number	510257
Basic Format	510-257
NPA (Area Code)	510
NXX	257

Call Routing Data

NPA-NXX-X	OCN	Company	Rate Center	Use Type	Assign Date	City	State	Region	Block Effective Date
510-257-0XXX	7145	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	FRNK OLIVR	RT		FREMONT-NEWARK:OLIVER DA	CA	WC
510-257-1XXX	649C	ONVOY, LLC - CA	FRNK OLIVR	AS	04/10/2007	FREMONT-NEWARK:OLIVER DA	CA	WC	09/07/2007
510-257-2XXX	515J	IP HORIZON LLC	FRNK OLIVR	AS	09/19/2003	FREMONT-NEWARK:OLIVER DA	CA	WC	10/12/2003
510-257-3XXX	515J	IP HORIZON LLC	FRNK OLIVR	AS	09/19/2003	FREMONT-NEWARK:OLIVER DA	CA	WC	10/12/2003
510-257-4XXX	8826	LEVEL 3 COMMUNICATIONS, LLC - CA	FRNK OLIVR	AS	11/03/2004	FREMONT-NEWARK:OLIVER DA	CA	WC	11/29/2004
510-257-5XXX	7229	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	FRNK OLIVR	AS	08/18/2005	FREMONT-NEWARK:OLIVER DA	CA	WC	09/15/2005
510-257-6XXX	7229	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	FRNK OLIVR	AS	08/18/2005	FREMONT-NEWARK:OLIVER DA	CA	WC	09/15/2005
510-257-7XXX	7229	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	FRNK OLIVR	AS	08/18/2005	FREMONT-NEWARK:OLIVER DA	CA	WC	09/15/2005
510-257-8XXX	7229	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	FRNK OLIVR	AS	08/18/2005	FREMONT-NEWARK:OLIVER DA	CA	WC	09/15/2005
510-257-9XXX	649C	ONVOY, LLC - CA	FRNK OLIVR	AS	09/11/2014	FREMONT-NEWARK:OLIVER DA	CA	WC	09/25/2014
510-257-XXXX	7145	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	FRNK OLIVR	AS		FREMONT-NEWARK:OLIVER DA	CA

Business/Government Phones on the 510-257 Prefix

Phone	Name	Address
510-257-1000	Pro-Star Towing Inc.
510-257-1313	Mian Ahmed
510-257-2284	Oakland Dental Implant Center
510-257-2393	Hayward Garage Doors
510-257-2652	J J Buckley Fine Wines
510-257-4535	Elan Solutions Inc
510-257-5530	Lotus Real Estate Group
510-257-5809	Apni Mandi Farmers Market
510-257-5994	Cal Bears Shop
510-257-6745	Mochiholic Fremont
510-257-5809	Apni Mandi Farmers Market	41081 Fremont Boulevard 94538 US

Reports

Anonymous User from , CA

April 28, 2026 at 5:27 PM

510-257-1874 reported as a unwanted call. Received on April 28, 2026 at 12:27 PM.
Call for Dropped call or no message

Anonymous User from , CA

April 23, 2026 at 2:40 PM

510-257-9461 reported as a Robocall. Received on April 23, 2026 at 11:35 AM.

Anonymous User from Hayward, California

April 20, 2026 at 1:10 PM

510-257-3370 reported as a Robocall. Received on April 19, 2026 at 2:49 PM.

Anonymous User from Herriman, Utah

April 17, 2026 at 5:59 PM

510-257-3274 reported as a Live Voice or Other. Received on April 17, 2026 at 3:01 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , NC

April 8, 2026 at 5:11 PM

510-257-3929 reported as a Robocall. Received on April 3, 2026 at 11:03 AM.

Anonymous User from Castro Valley, California

April 3, 2026 at 10:03 AM

510-257-3497 reported as a Robocall. Received on March 30, 2026 at 11:33 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CA

April 1, 2026 at 12:30 AM

510-257-9512 reported as a Robocall. Received on March 31, 2026 at 3:27 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , ID

March 24, 2026 at 4:20 PM

510-257-3355 reported as a Robocall. Received on March 24, 2026 at 1:10 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CA

March 19, 2026 at 12:51 PM

510-257-3407 reported as a unwanted call. Received on March 19, 2026 at 12:46 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CA

February 28, 2026 at 11:48 AM

510-257-2527 reported as a Robocall. Received on February 22, 2026 at 12:31 PM.

Anonymous User from Hayward, California

February 25, 2026 at 1:40 PM

510-257-3485 reported as a Robocall. Received on February 19, 2026 at 1:53 PM.

Anonymous User from , CA

February 5, 2026 at 9:06 PM

510-257-2534 reported as a Robocall. Received on February 5, 2026 at 9:04 AM.
Call for No Subject Provided

Anonymous User from Oceanside, California

February 4, 2026 at 5:17 PM

510-257-3849 reported as a unwanted call. Received on February 4, 2026 at 12:44 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Los Angeles, California

December 22, 2025 at 4:02 PM

510-257-3808 reported as a Robocall. Received on December 15, 2025 at 10:27 AM.

Anonymous User from Los Angeles, California

December 22, 2025 at 3:42 PM

510-257-2178 reported as a Robocall. Received on December 18, 2025 at 12:24 PM.

Anonymous User from , CA

November 29, 2025 at 4:12 PM

510-257-2517 reported as a Robocall. Received on November 24, 2025 at 6:43 PM.

Anonymous User from , CA

November 29, 2025 at 4:11 PM

510-257-2527 reported as a Robocall. Received on November 18, 2025 at 11:15 AM.

Anonymous User from , CA

November 13, 2025 at 3:32 PM

510-257-2519 reported as a Robocall. Received on October 12, 2025 at 11:14 AM.

Anonymous User from , CA

September 29, 2025 at 5:42 PM

510-257-2534 reported as a Robocall. Received on September 24, 2025 at 9:17 AM.

Anonymous User from , CA

September 29, 2025 at 5:42 PM

510-257-2534 reported as a Robocall. Received on September 22, 2025 at 6:06 PM.

Anonymous User from , CA

September 29, 2025 at 5:41 PM

510-257-2534 reported as a Robocall. Received on September 13, 2025 at 11:43 AM.

Anonymous User from , CA

September 29, 2025 at 5:40 PM

510-257-2527 reported as a Robocall. Received on September 12, 2025 at 12:57 PM.

Anonymous User from Fremont, California

September 27, 2025 at 1:53 PM

510-257-1235 reported as a Live Voice or Other. Received on September 27, 2025 at 10:02 AM.
Call for Medical & prescriptions

Anonymous User from , CA

September 3, 2025 at 8:04 PM

510-257-2754 reported as a Robocall. Received on September 3, 2025 at 4:48 PM.
Call for Dropped call or no message

Anonymous User from Martinez, California

August 14, 2025 at 2:02 PM

510-257-1913 reported as a Robocall. Received on August 13, 2025 at 12:00 AM.

Anonymous User from , CA

July 30, 2025 at 3:23 PM

510-257-2527 reported as a Robocall. Received on July 2, 2025 at 7:28 PM.

Anonymous User from , CA

July 29, 2025 at 2:16 PM

510-257-3697 reported as a Live Voice or Other. Received on July 28, 2025 at 1:54 PM.
Call for Dropped call or no message

Anonymous User from , CA

June 29, 2025 at 6:28 PM

510-257-2527 reported as a Robocall. Received on June 4, 2025 at 5:31 PM.

Anonymous User from , CA

June 29, 2025 at 6:27 PM

510-257-2527 reported as a Robocall. Received on June 28, 2025 at 1:25 PM.

Anonymous User from , CA

June 29, 2025 at 6:27 PM

510-257-2517 reported as a Robocall. Received on June 26, 2025 at 5:31 PM.

Anonymous User from , CA

June 29, 2025 at 6:26 PM

510-257-2517 reported as a Robocall. Received on June 21, 2025 at 11:52 AM.

Anonymous User from , CA

June 29, 2025 at 6:24 PM

510-257-2529 reported as a Robocall. Received on June 23, 2025 at 3:56 PM.

Anonymous User from , CA

June 29, 2025 at 6:22 PM

510-257-2519 reported as a Robocall. Received on June 17, 2025 at 7:48 PM.

Anonymous User from , CA

June 29, 2025 at 6:20 PM

510-257-2534 reported as a Robocall. Received on June 15, 2025 at 5:50 PM.

Anonymous User from , CA

June 29, 2025 at 6:20 PM

510-257-2534 reported as a Robocall. Received on June 13, 2025 at 4:21 PM.

Anonymous User from , CA

June 28, 2025 at 4:14 PM

510-257-2527 reported as a Robocall. Received on June 28, 2025 at 1:12 PM.
Call for Dropped call or no message

Anonymous User from , CA

June 23, 2025 at 11:04 PM

510-257-2529 reported as a Robocall. Received on June 23, 2025 at 6:28 PM.
Call for Dropped call or no message

Anonymous User from , CA

June 22, 2025 at 2:51 PM

510-257-2534 reported as a Robocall. Received on June 15, 2025 at 4:36 PM.
Call for Dropped call or no message

Anonymous User from , CA

June 22, 2025 at 2:50 PM

510-257-2519 reported as a Robocall. Received on June 17, 2025 at 10:07 AM.
Call for Dropped call or no message

Anonymous User from , CA

June 22, 2025 at 2:47 PM

510-257-2517 reported as a Robocall. Received on June 21, 2025 at 11:05 AM.
Call for Dropped call or no message

Anonymous User from , CA

May 30, 2025 at 6:17 PM

510-257-4302 reported as a unwanted call. Received on May 30, 2025 at 9:25 AM.
Call for Dropped call or no message

Anonymous User from , CA

May 30, 2025 at 2:43 PM

510-257-2519 reported as a Robocall. Received on May 2, 2025 at 10:42 AM.

Anonymous User from Los Gatos, California

May 28, 2025 at 5:45 PM

510-257-1238 reported as a Live Voice or Other. Received on May 28, 2025 at 2:40 PM.
Call for Medical & prescriptions

Anonymous User from Lathrop, California, California

May 20, 2025 at 12:26 PM

510-257-1238 reported as a Robocall. Received on May 20, 2025 at 12:00 AM.
Call for Medical & prescriptions

Anonymous User from Lathrop, California

May 20, 2025 at 11:28 AM

510-257-1238 reported as a Robocall. Received on May 20, 2025 at 8:26 AM.
Call for Medical & prescriptions

Anonymous User from , CA

May 5, 2025 at 2:13 PM

510-257-3823 reported as a Live Voice or Other. Received on May 5, 2025 at 11:12 AM.
Call for No Subject Provided

Anonymous User from Piedmont, California

April 30, 2025 at 2:50 PM

510-257-8945 reported as a unwanted call. Received on April 30, 2025 at 11:03 AM.
Call for Dropped call or no message

Anonymous User from , CA

April 29, 2025 at 6:09 PM

510-257-2519 reported as a Robocall. Received on April 21, 2025 at 11:25 AM.

Anonymous User from , CA

April 29, 2025 at 6:07 PM

510-257-2517 reported as a Robocall. Received on April 15, 2025 at 8:21 AM.

Anonymous User from , CA

April 29, 2025 at 6:05 PM

510-257-2527 reported as a Robocall. Received on April 7, 2025 at 8:27 AM.

Anonymous User from , CA

April 29, 2025 at 6:04 PM

510-257-2527 reported as a Robocall. Received on April 2, 2025 at 4:59 PM.

Anonymous User from , CA

April 29, 2025 at 6:04 PM

510-257-2534 reported as a Robocall. Received on April 6, 2025 at 4:56 PM.

Anonymous User from , FL

April 24, 2025 at 6:03 PM

510-257-2308 reported as a Live Voice or Other. Received on April 24, 2025 at 5:00 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CA

April 21, 2025 at 11:43 PM

510-257-2519 reported as a Robocall. Received on April 21, 2025 at 3:58 PM.
Call for Dropped call or no message

Anonymous User from , CA

April 12, 2025 at 11:22 AM

510-257-2534 reported as a Robocall. Received on April 12, 2025 at 8:06 AM.
Call for Dropped call or no message

Anonymous User from , CA

April 3, 2025 at 5:30 PM

510-257-5048 reported as a Live Voice or Other. Received on April 3, 2025 at 2:30 PM.
Call for No Subject Provided

Anonymous User from , CA

April 3, 2025 at 6:06 AM

510-257-2527 reported as a Robocall. Received on April 2, 2025 at 1:33 PM.
Call for Dropped call or no message

Anonymous User from Portland, Oregon

April 2, 2025 at 6:30 PM

510-257-3655 reported as a Robocall. Received on April 2, 2025 at 11:13 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CA

March 31, 2025 at 9:31 PM

510-257-4339 reported as a Live Voice or Other. Received on March 31, 2025 at 12:22 PM.
Call for Dropped call or no message

Anonymous User from , CA

March 30, 2025 at 1:47 PM

510-257-2517 reported as a Robocall. Received on March 3, 2025 at 5:52 PM.

Anonymous User from , CA

March 29, 2025 at 1:21 PM

510-257-4394 reported as a Live Voice or Other. Received on March 28, 2025 at 12:57 PM.
Call for Work from home & other ways to make money

Anonymous User from Quincy, Massachusetts

March 22, 2025 at 10:39 AM

510-257-3820 reported as a Live Voice or Other. Received on March 20, 2025 at 11:39 AM.
Call for Dropped call or no message

Anonymous User from Quincy, Massachusetts

March 20, 2025 at 5:41 PM

510-257-3820 reported as a Live Voice or Other. Received on March 20, 2025 at 11:39 AM.
Call for Dropped call or no message

Anonymous User from Omaha, Nebraska

March 8, 2025 at 4:18 PM

510-257-3819 reported as a Robocall. Received on March 8, 2025 at 2:28 PM.

Anonymous User from , CA

March 3, 2025 at 11:59 AM

510-257-2517 reported as a Robocall. Received on March 3, 2025 at 8:52 AM.
Call for Dropped call or no message

Anonymous User from , CA

February 28, 2025 at 6:29 PM

510-257-2519 reported as a Robocall. Received on February 20, 2025 at 12:56 PM.

Anonymous User from , CA

February 28, 2025 at 6:27 PM

510-257-2529 reported as a Robocall. Received on February 15, 2025 at 9:47 AM.

Anonymous User from , CA

February 28, 2025 at 6:19 PM

510-257-2517 reported as a Robocall. Received on February 2, 2025 at 4:23 PM.

Anonymous User from Hayward, California

February 14, 2025 at 11:41 AM

510-257-0709 reported as a Robocall. Received on February 14, 2025 at 8:37 AM.
Call for Dropped call or no message

Anonymous User from Hyrum, Utah

January 30, 2025 at 5:26 PM

510-257-4467 reported as a unwanted call. Received on January 30, 2025 at 3:21 PM.

Anonymous User from , CA

January 30, 2025 at 2:27 PM

510-257-2529 reported as a Robocall. Received on January 27, 2025 at 11:05 AM.

Anonymous User from , CA

January 30, 2025 at 2:25 PM

510-257-2534 reported as a Robocall. Received on January 21, 2025 at 10:18 AM.

Anonymous User from , CA

January 30, 2025 at 2:23 PM

510-257-2527 reported as a Robocall. Received on January 13, 2025 at 2:15 PM.

Anonymous User from , CA

January 30, 2025 at 2:22 PM

510-257-2527 reported as a Robocall. Received on January 6, 2025 at 3:26 PM.

Anonymous User from , CA

January 28, 2025 at 2:37 AM

510-257-2529 reported as a Robocall. Received on January 27, 2025 at 2:05 PM.
Call for Dropped call or no message

Anonymous User from Hyrum, Utah

January 27, 2025 at 12:00 PM

510-257-4464 reported as a Live Voice or Other. Received on January 27, 2025 at 9:56 AM.

Anonymous User from , CA

December 31, 2024 at 8:40 PM

510-257-2529 reported as a Robocall. Received on December 30, 2024 at 8:46 AM.

Anonymous User from , CA

December 31, 2024 at 8:39 PM

510-257-2527 reported as a Robocall. Received on December 26, 2024 at 12:11 PM.

Anonymous User from , CA

December 31, 2024 at 8:38 PM

510-257-2527 reported as a Robocall. Received on December 16, 2024 at 8:44 AM.

Anonymous User from , CA

October 31, 2024 at 2:27 PM

510-257-2529 reported as a Robocall. Received on October 26, 2024 at 11:18 AM.

Anonymous User from , CA

October 31, 2024 at 2:26 PM

510-257-2534 reported as a Robocall. Received on October 24, 2024 at 12:31 PM.

Anonymous User from , CA

October 31, 2024 at 2:20 PM

510-257-2527 reported as a Robocall. Received on October 5, 2024 at 12:39 PM.

Anonymous User from , CA

October 31, 2024 at 2:14 PM

510-257-2527 reported as a Robocall. Received on October 13, 2024 at 6:52 PM.

Anonymous User from Castro Valley, California

October 28, 2024 at 2:59 PM

510-257-6057 reported as a Robocall. Received on October 28, 2024 at 11:47 AM.

Anonymous User from , CA

October 28, 2024 at 2:59 PM

510-257-8945 reported as a Live Voice or Other. Received on October 28, 2024 at 11:53 AM.
Call for No Subject Provided

Anonymous User from , CA

October 6, 2024 at 3:23 PM

510-257-2534 reported as a Live Voice or Other. Received on October 6, 2024 at 12:00 PM.
Call for Computer & technical support

Anonymous User from , CA

October 6, 2024 at 3:19 PM

510-257-2534 reported as a Live Voice or Other. Received on October 5, 2024 at 10:00 AM.
Call for Dropped call or no message

Anonymous User from Tacoma, California

October 4, 2024 at 3:22 PM

510-257-2529 reported as a Live Voice or Other. Received on October 4, 2024 at 12:13 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Tacoma, Washington

October 4, 2024 at 3:20 PM

510-257-2527 reported as a Live Voice or Other. Received on October 2, 2024 at 11:26 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Pleasanton, CA

October 2, 2024 at 6:27 PM

510-257-2517 reported as a Prerecorded Voice. Received on October 2, 2024 at 2:13 PM.
Unwanted call for unknown
Contacted via Internet (VOIP)

Anonymous User from Fremont, California

September 30, 2024 at 5:06 PM

510-257-2008 reported as a Live Voice or Other. Received on September 24, 2024 at 11:00 AM.

Anonymous User from , CA

September 29, 2024 at 3:19 PM

510-257-2519 reported as a Robocall. Received on September 23, 2024 at 2:08 PM.

Anonymous User from Fremont, California

September 20, 2024 at 12:03 PM

510-257-2008 reported as a Live Voice or Other. Received on September 4, 2024 at 3:43 PM.

Anonymous User from Tacoma, California

September 17, 2024 at 2:52 PM

510-257-2529 reported as a Live Voice or Other. Received on September 17, 2024 at 11:43 AM.
Call for Calls pretending to be government, businesses, or family and friends