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650-503

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Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Examples: 206-739-5800, 206, 206-739, 48369
Raw Number650503
Basic Format650-503
NPA (Area Code)650
NXX503

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective DateBlock Available Date
650-503-0XXX671JU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSREDWOOD CYAFREDWOOD CITYCAWC06/08/2026
650-503-1XXX649CONVOY, LLC - CAREDWOOD CYAS07/12/2016REDWOOD CITYCAWC08/07/2016
650-503-2XXX671JU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSREDWOOD CYRTREDWOOD CITYCAWC
650-503-3XXX981EBANDWIDTH.COM CLEC, LLC - CAREDWOOD CYAS05/06/2011REDWOOD CITYCAWC06/03/2011
650-503-4XXX981EBANDWIDTH.COM CLEC, LLC - CAREDWOOD CYAS05/06/2011REDWOOD CITYCAWC06/03/2011
650-503-5XXX671JU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSREDWOOD CYRTREDWOOD CITYCAWC
650-503-6XXX981EBANDWIDTH.COM CLEC, LLC - CAREDWOOD CYAS05/06/2011REDWOOD CITYCAWC06/03/2011
650-503-7XXX671JU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSREDWOOD CYRTREDWOOD CITYCAWC
650-503-8XXX318JCOMCAST IP PHONE, LLCREDWOOD CYAS05/06/2016REDWOOD CITYCAWC05/23/2016
650-503-9XXX981EBANDWIDTH.COM CLEC, LLC - CAREDWOOD CYAS12/22/2014REDWOOD CITYCAWC01/19/2015
650-503-XXXX671JU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSREDWOOD CYASREDWOOD CITYCA

Business/Government Phones on the 650-503 Prefix

PhoneNameAddress
650-503-3022Gumstix Inc
650-503-3175Megan Allen PHD
650-503-3279OrderAhead
650-503-4537Martin Movers
650-503-5200Illumina
650-503-6777Blue Turtle Dental
650-503-8109Custom Fire Protection, Inc.
650-503-8179The Wise Mind Institute
650-503-90073STEPS4WARD, LLC
650-503-9755Budget Blinds of Southwest Redwood City
650-503-9761Fernway Solutions
650-503-9933A W Construction
650-503-6777Blue Turtle Dental2290 Birch Street US
650-503-7810Planned Parenthood Mar Monte2907 El Camino Real Redwood City 94061 US

Reports

Anonymous User from San Bruno, California

March 11, 2026 at 6:53 PM

650-503-7593 reported as a Robocall. Received on March 10, 2026 at 7:24 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Littleton, Massachusetts

March 5, 2026 at 9:57 AM

650-503-4700 reported as a Robocall. Received on March 3, 2026 at 10:30 AM.

Anonymous User from San Francisco, California

February 26, 2026 at 3:37 PM

650-503-4700 reported as a Robocall. Received on February 26, 2026 at 10:27 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , TN

February 21, 2026 at 2:09 PM

650-503-4700 reported as a Robocall. Received on February 21, 2026 at 12:00 AM.

Anonymous User from Los Altos, California

February 19, 2026 at 2:53 PM

650-503-6979 reported as a Robocall. Received on February 19, 2026 at 11:17 AM.

Anonymous User from Arlington, Virginia

February 17, 2026 at 1:14 PM

650-503-6861 reported as a Live Voice or Other. Received on February 16, 2026 at 11:38 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Chico, California

February 16, 2026 at 2:53 PM

650-503-4599 reported as a Live Voice or Other. Received on February 16, 2026 at 11:50 AM.
Call for Computer & technical support

Anonymous User from Bloomington, Indiana

February 12, 2026 at 8:45 AM

650-503-4700 reported as a Robocall. Received on February 12, 2026 at 8:00 AM.

Anonymous User from Bloomington, Indiana

February 11, 2026 at 8:39 PM

650-503-4700 reported as a Robocall. Received on February 11, 2026 at 8:00 AM.

Anonymous User from Fort Worth, Texas

February 10, 2026 at 9:05 PM

650-503-3496 reported as a Live Voice or Other. Received on February 9, 2026 at 5:52 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Covington, Louisiana

February 5, 2026 at 4:55 PM

650-503-4481 reported as a Live Voice or Other. Received on January 28, 2026 at 5:18 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Baltimore, Maryland

February 1, 2026 at 7:58 PM

650-503-3246 reported as a Live Voice or Other. Received on February 1, 2026 at 7:35 PM.

Anonymous User from Louisville, Kentucky

January 31, 2026 at 6:35 PM

650-503-4204 reported as a Live Voice or Other. Received on January 31, 2026 at 5:12 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Spokane, Washington

January 27, 2026 at 5:23 PM

650-503-3839 reported as a Robocall. Received on January 27, 2026 at 12:00 PM.

Anonymous User from , NY

January 27, 2026 at 5:01 PM

650-503-3386 reported as a Robocall. Received on January 27, 2026 at 5:00 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , NJ

January 26, 2026 at 7:48 PM

650-503-4310 reported as a Live Voice or Other. Received on January 26, 2026 at 7:00 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , AZ

September 10, 2025 at 9:22 PM

650-503-9127 reported as a Live Voice or Other. Received on September 10, 2025 at 12:00 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , VA

September 8, 2025 at 9:21 AM

650-503-4700 reported as a Robocall. Received on September 8, 2025 at 9:05 AM.

Anonymous User from , OH

September 2, 2025 at 10:14 PM

650-503-4042 reported as a Live Voice or Other. Received on September 2, 2025 at 9:31 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Locust Grove, Georgia

August 30, 2025 at 11:51 AM

650-503-3424 reported as a Robocall. Received on August 30, 2025 at 10:45 AM.

Anonymous User from Redwood City, California

June 11, 2025 at 3:51 PM

650-503-6018 reported as a Robocall. Received on June 11, 2025 at 1:54 PM.

Anonymous User from , CA

February 17, 2025 at 12:30 PM

650-503-3496 reported as a Robocall. Received on February 12, 2025 at 12:48 PM.
Call for Dropped call or no message

Anonymous User from , PA

January 30, 2025 at 11:16 AM

650-503-4700 reported as a Robocall. Received on January 30, 2025 at 10:06 AM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , PA

January 30, 2025 at 11:15 AM

650-503-4700 reported as a Robocall. Received on January 30, 2025 at 12:00 AM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , PA

January 30, 2025 at 11:14 AM

650-503-9790 reported as a Robocall. Received on January 30, 2025 at 10:03 AM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , PA

January 29, 2025 at 4:04 PM

650-503-4700 reported as a Robocall. Received on January 29, 2025 at 2:58 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , PA

January 29, 2025 at 4:03 PM

650-503-4700 reported as a Robocall. Received on January 29, 2025 at 2:55 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , PA

January 28, 2025 at 1:44 PM

650-503-4700 reported as a Robocall. Received on January 28, 2025 at 12:20 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , CA

January 27, 2025 at 2:22 PM

650-503-1967 reported as a Live Voice or Other. Received on January 23, 2025 at 3:15 PM.

Anonymous User from , CA

September 27, 2024 at 10:48 AM

650-503-2576 reported as a Robocall. Received on September 16, 2024 at 12:46 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CA

September 18, 2024 at 5:08 PM

650-503-5702 reported as a Robocall. Received on September 17, 2024 at 7:26 AM.
Call for No Subject Provided

Anonymous User from Austin, Texas

July 10, 2024 at 3:11 PM

650-503-4700 reported as a Live Voice or Other. Received on July 10, 2024 at 11:50 AM.

Anonymous User from , CA

March 8, 2024 at 1:22 PM

650-503-6530 reported as a Live Voice or Other. Received on March 8, 2024 at 9:00 AM.
Call for No Subject Provided

Anonymous User from Azusa, California

March 6, 2024 at 6:47 PM

650-503-4700 reported as a Robocall. Received on February 16, 2024 at 10:07 AM.

Anonymous User from Pleasant Hill, California

February 28, 2024 at 7:35 PM

650-503-6378 reported as a Robocall. Received on February 28, 2024 at 9:48 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Los Altos, California

February 12, 2024 at 2:01 PM

650-503-9963 reported as a Robocall. Received on February 5, 2024 at 4:27 PM.

Anonymous User from , PA

January 29, 2024 at 3:29 PM

650-503-4700 reported as a Robocall. Received on January 29, 2024 at 3:26 PM.
Call for Dropped call or no message

Anonymous User from , CA

January 19, 2024 at 6:08 PM

650-503-4700 reported as a Robocall. Received on January 19, 2024 at 6:00 PM.
Call for No Subject Provided

Anonymous User from , CO

January 9, 2024 at 3:53 PM

650-503-4700 reported as a Robocall. Received on January 8, 2024 at 12:40 PM.
Call for Dropped call or no message

Anonymous User from , CA

December 4, 2023 at 4:34 PM

650-503-2435 reported as a Robocall. Received on December 4, 2023 at 12:28 PM.
Call for Medical & prescriptions

Anonymous User from Danville, California

November 16, 2023 at 2:01 PM

650-503-8265 reported as a Robocall. Received on November 16, 2023 at 8:10 AM.

Anonymous User from Brooklyn, NY

July 17, 2023 at 6:04 PM

None reported as a Text Message. Received on July 17, 2023 at 12:14 PM.
Unwanted call for Other Services
Caller ID indicated they called from 650-503-4700
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Vancouver, Washington

March 22, 2023 at 3:49 PM

650-503-4700 reported as a Robocall. Received on March 22, 2023 at 12:46 PM.
Call for Medical & prescriptions

Anonymous User from Fort Collins, Colorado

January 24, 2023 at 8:09 PM

650-503-1765 reported as a Live Voice or Other. Received on January 24, 2023 at 6:07 PM.

Anonymous User from Antioch, California

October 6, 2022 at 9:55 PM

650-503-9715 reported as a Live Voice or Other. Received on October 6, 2022 at 6:26 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from American Fork, Utah

July 13, 2022 at 12:50 PM

650-503-4700 reported as a Robocall. Received on July 13, 2022 at 10:50 AM.
Call for Warranties & protection plans

Anonymous User from Hayward, California

May 27, 2022 at 12:11 PM

650-503-4438 reported as a Robocall. Received on May 25, 2022 at 2:34 PM.
Call for Dropped call or no message

Anonymous User from Montebello, CA

September 12, 2021 at 6:29 PM

None reported as a Abandoned Calls. Received on September 12, 2021 at 2:47 PM.
Unwanted call for unknown
Caller ID indicated they called from 650-503-0215
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Brooklyn, NY

June 25, 2021 at 7:25 PM

650-503-4700 reported as a Prerecorded Voice. Received on June 25, 2021 at 9:15 AM.
Unwanted call for unknown
Caller ID indicated they called from 718-996-2233
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Alexandria, VA

January 21, 2021 at 3:10 AM

None reported as a Live Voice. Received on January 20, 2021 at 5:47 PM.
Unwanted call for unknown
Caller ID indicated they called from 650-503-4700
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , CA

October 5, 2016 at 10:27 PM

reported as a Prerecorded Voice. Received on October 5, 2016 at 1:50 PM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 650-503-9586
Contacted via Wired

Anonymous User from , CA

January 24, 2016 at 12:26 AM

650-503-9581 reported as a Live Voice. Received on January 23, 2016 at 3:22 PM.
Telemarketing (including do not call and spoofing) for unknown
Contacted via Wireless (cell phone/other mobile device)

Most 'popular' numbers on this prefix:

650-503-0XXX: 650-503-0212 | 650-503-0214 | 650-503-0216 | 650-503-0236 | 650-503-0238 | 650-503-0248 |
650-503-1XXX: 650-503-1700 | 650-503-1747 | 650-503-1760 | 650-503-1762 | 650-503-1764 | 650-503-1777 |
650-503-2XXX: 650-503-2400 | 650-503-2425 | 650-503-2433 | 650-503-2434 | 650-503-2437 | 650-503-2447 | 650-503-2500 | 650-503-2508 | 650-503-2525 | 650-503-2570 | 650-503-2575 | 650-503-2577 |
650-503-3XXX: 650-503-3000 | 650-503-3003 | 650-503-3008 | 650-503-3020 | 650-503-3023 | 650-503-3024 | 650-503-3170 | 650-503-3172 | 650-503-3175 | 650-503-3196 | 650-503-3443 | 650-503-3452 | 650-503-3456 | 650-503-3491 | 650-503-3495 | 650-503-3499 |
650-503-4XXX: 650-503-4400 | 650-503-4409 | 650-503-4431 | 650-503-4433 | 650-503-4434 | 650-503-4452 | 650-503-4500 | 650-503-4530 | 650-503-4534 | 650-503-4535 | 650-503-4545 | 650-503-4701 | 650-503-4703 | 650-503-4707 | 650-503-4771 | 650-503-4772 |
650-503-6XXX: 650-503-6332 | 650-503-6362 | 650-503-6369 | 650-503-6372 | 650-503-6373 | 650-503-6375 | 650-503-6500 | 650-503-6503 | 650-503-6530 | 650-503-6533 | 650-503-6535 | 650-503-6550 | 650-503-6773 | 650-503-6776 | 650-503-6777 | 650-503-6782 | 650-503-6783 | 650-503-6787 |
650-503-7XXX: 650-503-7500 | 650-503-7506 | 650-503-7510 | 650-503-7512 | 650-503-7515 |
650-503-8XXX: 650-503-8100 | 650-503-8103 | 650-503-8109 | 650-503-8182 | 650-503-8187 | 650-503-8188 | 650-503-8222 | 650-503-8228 | 650-503-8229 | 650-503-8258 | 650-503-8282 | 650-503-8283 | 650-503-8500 | 650-503-8501 | 650-503-8505 |
650-503-9XXX: 650-503-9000 | 650-503-9002 | 650-503-9003 | 650-503-9008 | 650-503-9192 | 650-503-9195 | 650-503-9197 | 650-503-9198 | 650-503-9199 | 650-503-9500 | 650-503-9506 | 650-503-9580 | 650-503-9585 | 650-503-9588 | 650-503-9706 | 650-503-9707 | 650-503-9710 | 650-503-9712 | 650-503-9717 |