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301-231

You are reviewing the Area Code (NPA/NXX) report for 301-231. Did you mean to search the SMS short code 301231?

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Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Examples: 206-739-5800, 206, 206-739, 48369
Raw Number301231
Basic Format301-231
NPA (Area Code)301
NXX231

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
301-231-0XXX9212VERIZON MARYLAND, INC.WSNGTNZN11RTWASHINGTON ZONE 11MDMA
301-231-1XXX876DONVOY, LLC - MDWSNGTNZN11AS08/05/2014WASHINGTON ZONE 11MDMA09/01/2014
301-231-2XXX9212VERIZON MARYLAND, INC.WSNGTNZN11RTWASHINGTON ZONE 11MDMA
301-231-3XXX9212VERIZON MARYLAND, INC.WSNGTNZN11RTWASHINGTON ZONE 11MDMA
301-231-4XXX9212VERIZON MARYLAND, INC.WSNGTNZN11RTWASHINGTON ZONE 11MDMA
301-231-5XXX9212VERIZON MARYLAND, INC.WSNGTNZN11RTWASHINGTON ZONE 11MDMA
301-231-6XXX9212VERIZON MARYLAND, INC.WSNGTNZN11RTWASHINGTON ZONE 11MDMA
301-231-7XXX9212VERIZON MARYLAND, INC.WSNGTNZN11RTWASHINGTON ZONE 11MDMA
301-231-8XXX9212VERIZON MARYLAND, INC.WSNGTNZN11RTWASHINGTON ZONE 11MDMA
301-231-9XXX9212VERIZON MARYLAND, INC.WSNGTNZN11RTWASHINGTON ZONE 11MDMA
301-231-XXXX9212VERIZON MARYLAND, INC.WSNGTNZN11ASWASHINGTON ZONE 11MD

Business/Government Phones on the 301-231 Prefix

PhoneNameAddress
301-231-7000OIS Visa Services
301-231-7000Online Integration Solutions
301-231-8200Express Title Company
301-231-0030Mervis1775 Rockville Pike Rockville 20852 US
301-231-1833Allbrand Auto Service10566 Metropolitan Avenue Kensington 20895 US
301-231-2300IPIC Theaters11830 Grand Park Avenue North Bethesda 20852 US
301-231-2310City Perch Kitchen + Bar11830 Grand Park Avenue US
301-231-5386Ulta Beauty1631 Rockville Pike Rockville 20852 US
301-231-5678Starbucks12091 Rockville Pike Rockville 20852 US
301-231-6516Dunkin'11530 Rockville Pike Rockville 20852 US
301-231-7355Carpet & Floor Express1488 Rockville Pike Rockville 20852 US

Reports

Anonymous User from Gwynn Oak, Maryland

March 24, 2026 at 9:54 AM

301-231-0262 reported as a Robocall. Received on March 24, 2026 at 9:47 AM.

Anonymous User from Damascus, Maryland

March 9, 2026 at 3:45 PM

301-231-1453 reported as a Robocall. Received on March 9, 2026 at 3:43 PM.
Call for Warranties & protection plans

Anonymous User from Frederick, Maryland

February 24, 2026 at 6:14 PM

301-231-1417 reported as a Robocall. Received on February 24, 2026 at 6:07 PM.
Call for Medical & prescriptions

Anonymous User from Beltsville, Maryland

December 29, 2025 at 11:08 PM

301-231-0316 reported as a Live Voice or Other. Received on December 23, 2025 at 9:10 AM.
Call for Dropped call or no message

Anonymous User from , MD

November 21, 2025 at 5:38 PM

301-231-1637 reported as a Robocall. Received on November 21, 2025 at 5:36 PM.
Call for Charities

Anonymous User from , MD

September 19, 2025 at 1:58 PM

301-231-8249 reported as a Live Voice or Other. Received on September 19, 2025 at 1:48 PM.

Anonymous User from Smithsburg, Maryland

August 15, 2025 at 4:35 PM

301-231-2618 reported as a Robocall. Received on August 15, 2025 at 4:34 PM.
Call for Medical & prescriptions

Anonymous User from , MD

June 18, 2025 at 11:51 AM

301-231-3401 reported as a Robocall. Received on June 18, 2025 at 11:50 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Mechanicsville, Maryland

May 7, 2025 at 12:44 PM

301-231-3968 reported as a Robocall. Received on May 6, 2025 at 4:43 PM.

Anonymous User from Hyattsville, Maryland

April 29, 2025 at 8:53 AM

301-231-7136 reported as a Robocall. Received on April 28, 2025 at 3:24 PM.

Anonymous User from Silver Spring, Maryland

April 23, 2025 at 3:24 PM

301-231-7538 reported as a Live Voice or Other. Received on April 23, 2025 at 9:24 AM.

Anonymous User from Rockville, Maryland

March 24, 2025 at 10:05 PM

301-231-6562 reported as a Robocall. Received on March 10, 2025 at 4:06 PM.

Anonymous User from Smithsburg, Maryland

March 14, 2025 at 10:30 AM

301-231-6843 reported as a Robocall. Received on March 13, 2025 at 10:28 AM.

Anonymous User from Damascus, MD

January 28, 2025 at 2:37 PM

reported as a Live Voice. Received on January 28, 2025 at 9:26 AM.
Unwanted call for Google Listings Services
Caller ID indicated they called from 301-231-1188
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Smithsburg, Maryland

January 22, 2025 at 3:12 PM

301-231-9585 reported as a Robocall. Received on January 22, 2025 at 3:11 PM.
Call for Medical & prescriptions

Anonymous User from , MD

December 2, 2024 at 9:44 AM

301-231-8786 reported as a Robocall. Received on December 1, 2024 at 12:51 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , MD

November 21, 2024 at 10:38 PM

301-231-6496 reported as a Robocall. Received on November 18, 2024 at 10:07 AM.

Anonymous User from Smithsburg, Maryland

November 4, 2024 at 3:54 PM

301-231-4256 reported as a Robocall. Received on November 4, 2024 at 3:53 PM.
Call for Medical & prescriptions

Anonymous User from Mitchellville, Maryland

October 30, 2024 at 4:22 PM

301-231-1614 reported as a Live Voice or Other. Received on October 29, 2024 at 10:45 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , MD

July 10, 2024 at 4:38 PM

301-231-1288 reported as a unwanted call. Received on July 2, 2024 at 1:46 PM.

Anonymous User from , MD

July 10, 2024 at 4:37 PM

301-231-1288 reported as a unwanted call. Received on July 3, 2024 at 11:27 AM.

Anonymous User from Silver Spring, Maryland

July 9, 2024 at 2:21 PM

301-231-1324 reported as a Live Voice or Other. Received on July 9, 2024 at 10:00 AM.
Call for Energy, solar, & utilities

Anonymous User from , MD

June 26, 2024 at 9:53 AM

301-231-1212 reported as a Robocall. Received on June 25, 2024 at 2:40 PM.
Call for Dropped call or no message

Anonymous User from , MD

June 26, 2024 at 9:46 AM

301-231-1212 reported as a Robocall. Received on June 25, 2024 at 4:40 PM.
Call for Dropped call or no message

Anonymous User from , MD

June 26, 2024 at 9:45 AM

301-231-1212 reported as a Robocall. Received on June 25, 2024 at 12:46 PM.
Call for Dropped call or no message

Anonymous User from , MD

June 26, 2024 at 9:43 AM

301-231-1212 reported as a Robocall. Received on June 25, 2024 at 6:03 PM.
Call for Dropped call or no message

Anonymous User from College Park, Maryland

May 8, 2024 at 12:57 PM

301-231-1664 reported as a Live Voice or Other. Received on May 8, 2024 at 12:55 PM.
Call for Medical & prescriptions

Anonymous User from , MD

April 25, 2024 at 1:40 PM

301-231-1664 reported as a Live Voice or Other. Received on April 25, 2024 at 9:01 AM.
Call for Medical & prescriptions

Anonymous User from Virginia Beach, Virginia

March 22, 2024 at 10:48 AM

301-231-0404 reported as a Live Voice or Other. Received on March 22, 2024 at 10:44 AM.

Anonymous User from , MD

January 24, 2024 at 11:47 AM

301-231-1664 reported as a Live Voice or Other. Received on January 24, 2024 at 11:45 AM.
Call for Medical & prescriptions

Anonymous User from Silver Spring, Maryland

January 19, 2024 at 9:13 AM

301-231-1562 reported as a Live Voice or Other. Received on January 19, 2024 at 9:09 AM.
Call for Charities

Anonymous User from Bel Air, Maryland

December 22, 2023 at 4:29 PM

301-231-2084 reported as a Robocall. Received on December 20, 2023 at 11:22 AM.
Call for Dropped call or no message

Anonymous User from Smithsburg, Maryland

November 13, 2023 at 6:09 PM

301-231-8941 reported as a Robocall. Received on November 13, 2023 at 6:09 PM.
Call for Dropped call or no message

Anonymous User from Hyattsville, Maryland

October 7, 2023 at 4:46 PM

301-231-2163 reported as a Robocall. Received on October 7, 2023 at 3:31 PM.

Anonymous User from , MD

June 9, 2023 at 12:13 PM

301-231-1666 reported as a Live Voice or Other. Received on June 9, 2023 at 11:50 AM.

Anonymous User from Silver Spring, Maryland

May 16, 2023 at 11:06 AM

301-231-1728 reported as a Robocall. Received on May 16, 2023 at 10:56 AM.

Anonymous User from Woburn, Massachusetts

January 3, 2023 at 6:29 PM

301-231-6085 reported as a Robocall. Received on January 3, 2023 at 8:13 AM.

Anonymous User from Rockville, Maryland

December 22, 2022 at 3:24 PM

301-231-3050 reported as a Robocall. Received on December 22, 2022 at 3:22 PM.
Call for Dropped call or no message

Anonymous User from Gaithersburg, Maryland

December 21, 2022 at 8:14 PM

301-231-1573 reported as a Live Voice or Other. Received on December 21, 2022 at 7:54 PM.

Anonymous User from Upper Marlboro, Maryland

December 21, 2022 at 4:19 PM

301-231-5217 reported as a Live Voice or Other. Received on December 21, 2022 at 2:22 PM.
Call for Medical & prescriptions

Anonymous User from Columbia, MD

December 20, 2022 at 9:59 PM

301-231-1648 reported as a Live Voice. Received on December 20, 2022 at 4:37 PM.
Unwanted call for unknown
Contacted via Wired

Anonymous User from Derwood, Maryland

October 19, 2022 at 4:34 PM

301-231-9256 reported as a Live Voice or Other. Received on October 19, 2022 at 4:17 PM.
Call for No Subject Provided

Anonymous User from Rockville, Maryland

September 1, 2022 at 2:19 PM

301-231-0424 reported as a Live Voice or Other. Received on August 31, 2022 at 12:00 AM.
Call for Dropped call or no message

Anonymous User from Millsboro, Maryland

June 13, 2022 at 9:53 AM

301-231-1517 reported as a Robocall. Received on June 2, 2022 at 3:22 PM.
Call for Dropped call or no message

Anonymous User from Bethesda, Maryland

June 8, 2022 at 9:03 PM

301-231-9357 reported as a Robocall. Received on June 8, 2022 at 4:10 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , MD

June 8, 2022 at 3:37 PM

301-231-1513 reported as a Live Voice or Other. Received on June 8, 2022 at 3:31 PM.
Call for No Subject Provided

Anonymous User from Upper Marlboro, MD

December 11, 2020 at 11:15 PM

None reported as a Live Voice. Received on December 11, 2020 at 2:13 PM.
Unwanted call for unknown
Caller ID indicated they called from 301-231-1562
Contacted via Wired

Anonymous User from , MD

March 22, 2017 at 5:23 PM

None reported as a Abandoned Calls. Received on March 21, 2017 at 12:00 AM.
Unwanted call for unknown
Caller ID indicated they called from 301-231-5100
Contacted via Wired

Anonymous User from , MD

June 9, 2015 at 6:59 PM

301-231-9348 reported as a Prerecorded Voice. Received on June 9, 2015 at 12:40 PM.
Telemarketing (including do not call and spoofing) for unknown
Contacted via Wired

Anonymous User from , MD

June 9, 2015 at 6:59 PM

301-231-9348 reported as a Prerecorded Voice. Received on June 9, 2015 at 12:40 PM.
Telemarketing (including do not call and spoofing) for unknown
Contacted via Wired

Anonymous User from , WV

March 24, 2015 at 5:13 PM

reported as a Prerecorded Voice. Received on March 24, 2015 at 12:05 PM.
Robocall for unknown
Caller ID indicated they called from 301-231-1024
Contacted via Wired

Anonymous User from , WV

March 17, 2015 at 2:59 PM

301-231-1024 reported as a Autodialed Live Voice Call. Received on March 17, 2015 at 9:12 AM.
Robocall for unknown
Contacted via Internet (VOIP)

Anonymous User from ,

March 14, 2015 at 2:22 PM

301-231-1024 reported as a Text Message. Received on March 14, 2015 at 8:59 AM.
Robocall for unknown
Contacted via Wired

Most 'popular' numbers on this prefix:

301-231-0XXX: 301-231-0000 | 301-231-0001 | 301-231-0400 | 301-231-0401 | 301-231-0402 | 301-231-0403 | 301-231-0404 |
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301-231-2XXX: 301-231-2000 | 301-231-2001 | 301-231-2008 | 301-231-2080 | 301-231-2083 | 301-231-2087 | 301-231-2147 | 301-231-2149 | 301-231-2167 | 301-231-2168 | 301-231-2169 | 301-231-2188 | 301-231-2300 | 301-231-2311 | 301-231-2313 | 301-231-2314 | 301-231-2333 |
301-231-3XXX: 301-231-3000 | 301-231-3001 | 301-231-3008 | 301-231-3050 | 301-231-3053 | 301-231-3054 |
301-231-4XXX: 301-231-4241 | 301-231-4247 | 301-231-4249 | 301-231-4250 | 301-231-4253 | 301-231-4255 |
301-231-5XXX: 301-231-5100 | 301-231-5102 | 301-231-5105 | 301-231-5200 | 301-231-5212 | 301-231-5215 | 301-231-5217 | 301-231-5600 | 301-231-5670 | 301-231-5672 | 301-231-5678 | 301-231-5983 | 301-231-5984 | 301-231-5986 | 301-231-5990 | 301-231-5996 | 301-231-5997 |
301-231-6XXX: 301-231-6001 | 301-231-6004 | 301-231-6008 | 301-231-6080 | 301-231-6083 | 301-231-6088 | 301-231-6452 | 301-231-6453 | 301-231-6458 | 301-231-6491 | 301-231-6495 | 301-231-6499 | 301-231-6500 | 301-231-6501 | 301-231-6508 | 301-231-6550 | 301-231-6553 | 301-231-6555 |
301-231-7XXX: 301-231-7000 | 301-231-7002 | 301-231-7008 | 301-231-7040 | 301-231-7070 | 301-231-7333 | 301-231-7337 | 301-231-7338 | 301-231-7372 | 301-231-7373 | 301-231-7500 | 301-231-7506 | 301-231-7530 | 301-231-7531 | 301-231-7533 | 301-231-7700 | 301-231-7708 | 301-231-7709 | 301-231-7777 | 301-231-7778 |
301-231-8XXX: 301-231-8163 | 301-231-8166 | 301-231-8168 | 301-231-8187 | 301-231-8188 | 301-231-8197 | 301-231-8200 | 301-231-8201 | 301-231-8207 | 301-231-8258 | 301-231-8282 | 301-231-8283 | 301-231-8360 | 301-231-8363 | 301-231-8365 | 301-231-8701 | 301-231-8706 | 301-231-8780 | 301-231-8787 | 301-231-8788 | 301-231-8800 | 301-231-8870 | 301-231-8877 | 301-231-8878 | 301-231-8887 | 301-231-8888 | 301-231-8945 | 301-231-8947 | 301-231-8949 | 301-231-8993 | 301-231-8997 | 301-231-8998 |
301-231-9XXX: 301-231-9250 | 301-231-9255 | 301-231-9258 | 301-231-9292 | 301-231-9297 | 301-231-9298 | 301-231-9340 | 301-231-9343 | 301-231-9345 | 301-231-9393 | 301-231-9394 | 301-231-9398 | 301-231-9452 | 301-231-9453 | 301-231-9454 | 301-231-9470 | 301-231-9473 | 301-231-9478 | 301-231-9500 | 301-231-9506 | 301-231-9510 | 301-231-9511 | 301-231-9515 |