You are reviewing the Area Code (NPA/NXX) report for 301-637. Did you mean to search the SMS short code 301637?
NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
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301-637-0XXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | WSNGTNZN10 | AS | 12/01/2004 | WASHINGTON ZONE 10 | MD | MA | 12/13/2004 |
301-637-1XXX | 2697 | CTC COMMUNICATIONS CORP. - MD | WSNGTNZN10 | AS | 11/16/2005 | WASHINGTON ZONE 10 | MD | MA | 12/15/2005 |
301-637-2XXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | WSNGTNZN10 | AS | 03/13/2006 | WASHINGTON ZONE 10 | MD | MA | 04/07/2006 |
301-637-3XXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | WSNGTNZN10 | AS | 03/13/2006 | WASHINGTON ZONE 10 | MD | MA | 04/07/2006 |
301-637-4XXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | WSNGTNZN10 | RT | | WASHINGTON ZONE 10 | MD | MA | |
301-637-5XXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | WSNGTNZN10 | AS | 03/08/2005 | WASHINGTON ZONE 10 | MD | MA | 04/03/2005 |
301-637-6XXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | WSNGTNZN10 | AS | 03/08/2005 | WASHINGTON ZONE 10 | MD | MA | 04/03/2005 |
301-637-7XXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | WSNGTNZN10 | AS | 03/08/2005 | WASHINGTON ZONE 10 | MD | MA | 04/03/2005 |
301-637-8XXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | WSNGTNZN10 | AS | 05/19/2006 | WASHINGTON ZONE 10 | MD | MA | 06/17/2006 |
301-637-9XXX | 318J | COMCAST IP PHONE, LLC | WSNGTNZN10 | AS | 09/29/2010 | WASHINGTON ZONE 10 | MD | MA | 10/11/2010 |
301-637-XXXX | 6119 | LEVEL 3 COMMUNICATIONS, LLC - MD | WSNGTNZN10 | AS | | WASHINGTON ZONE 10 | MD | | |
Reports
Anonymous User from , MD
March 2, 2024 at 9:50 AM
Anonymous User from , MD
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Anonymous User from Rockville, Maryland
February 29, 2024 at 2:21 PM
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Anonymous User from Rockville, Maryland
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Anonymous User from Bethesda, Maryland
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Anonymous User from Rockville, Maryland
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Anonymous User from Derwood, Maryland
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Anonymous User from , MD
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Anonymous User from Severna Park, Maryland
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Anonymous User from Cabin Creek, West Virginia
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Anonymous User from Clear Spring, Maryland
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Anonymous User from , MD
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Anonymous User from Waldorf, Maryland
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Anonymous User from Bethesda, Maryland
November 25, 2022 at 2:26 PM
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Anonymous User from Olney, Maryland
September 29, 2022 at 8:56 PM
Anonymous User from Gaithersburg, Maryland
September 28, 2022 at 4:33 PM
Anonymous User from Gaithersburg, Maryland
September 27, 2022 at 3:05 PM
Anonymous User from Severn, Maryland
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Anonymous User from Silver Spring, Maryland
August 12, 2022 at 12:40 PM
Anonymous User from , MD
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Anonymous User from Kensington, MD
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Anonymous User from Fort Wash, Maryland
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Anonymous User from Fort Wash, Maryland
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Anonymous User from , MD
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Anonymous User from Hyattsville, Maryland
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Anonymous User from Fort Washington, Maryland
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Anonymous User from Frederick, Maryland
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Anonymous User from Unknown, Maryland
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Anonymous User from Fort Washington, Maryland
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Anonymous User from Fort Washington, Maryland
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Anonymous User from Upper Marlboro, Maryland
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Anonymous User from Fort Washington, Maryland
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Anonymous User from Frostburg, Maryland
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Anonymous User from Frostburg, Maryland
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Anonymous User from Frostburg, Maryland
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Anonymous User from Fort Wash, Maryland
May 31, 2022 at 8:55 PM
Anonymous User from Woodbine, MD
July 28, 2021 at 12:25 AM
Anonymous User from Silver Spring, MD
October 8, 2020 at 2:03 PM
Anonymous User from Silver Spring, MD
October 2, 2020 at 2:15 PM
Anonymous User from , MD
November 16, 2016 at 10:40 PM
Anonymous User from , MD
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Anonymous User from , MD
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Anonymous User from , MD
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Anonymous User from , MD
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Anonymous User from , MD
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Anonymous User from , MD
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Anonymous User from , MD
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Anonymous User from , MD
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Anonymous User from , MD
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Anonymous User from , OR
October 20, 2015 at 4:30 PM
Anonymous User from , CA
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Anonymous User from , GA
September 25, 2015 at 10:43 PM
Anonymous User from , MD
September 24, 2015 at 2:39 AM
Anonymous User from , MD
January 6, 2015 at 10:04 PM