You are reviewing the Area Code (NPA/NXX) report for 301-287. Did you mean to search the SMS short code 301287?
NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
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301-287-0XXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | WSNGTNZN11 | RT | | WASHINGTON ZONE 11 | MD | MA | |
301-287-1XXX | 2593 | CORE COMMUNICATIONS, INC.- MD | WSNGTNZN11 | AS | 10/12/2018 | WASHINGTON ZONE 11 | MD | MA | 10/24/2018 |
301-287-2XXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | WSNGTNZN11 | RT | | WASHINGTON ZONE 11 | MD | MA | |
301-287-3XXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | WSNGTNZN11 | RT | | WASHINGTON ZONE 11 | MD | MA | |
301-287-4XXX | 876D | ONVOY, LLC - MD | WSNGTNZN11 | AS | 11/09/2017 | WASHINGTON ZONE 11 | MD | MA | 12/08/2017 |
301-287-5XXX | 876D | ONVOY, LLC - MD | WSNGTNZN11 | AS | 11/09/2017 | WASHINGTON ZONE 11 | MD | MA | 12/08/2017 |
301-287-6XXX | 876D | ONVOY, LLC - MD | WSNGTNZN11 | AS | 11/09/2017 | WASHINGTON ZONE 11 | MD | MA | 12/08/2017 |
301-287-7XXX | 2593 | CORE COMMUNICATIONS, INC.- MD | WSNGTNZN11 | AS | 03/15/2019 | WASHINGTON ZONE 11 | MD | MA | 03/29/2019 |
301-287-8XXX | 1958 | ATX TELECOMMUNICATIONS SERVICES, LTD. | WSNGTNZN11 | AS | 02/26/2004 | WASHINGTON ZONE 11 | MD | MA | 03/27/2004 |
301-287-9XXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | WSNGTNZN11 | RT | | WASHINGTON ZONE 11 | MD | MA | |
301-287-XXXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | WSNGTNZN11 | AS | | WASHINGTON ZONE 11 | MD | | |
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