You are reviewing the Area Code (NPA/NXX) report for 301-321. Did you mean to search the SMS short code 301321?
NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
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301-321-0XXX | 2593 | CORE COMMUNICATIONS, INC.- MD | WSNGTNZN11 | AS | 05/23/2018 | WASHINGTON ZONE 11 | MD | MA | 06/16/2018 |
301-321-1XXX | 939H | COMMIO, LLC | WSNGTNZN11 | AS | 08/02/2021 | WASHINGTON ZONE 11 | MD | MA | 08/29/2021 |
301-321-2XXX | 2593 | CORE COMMUNICATIONS, INC.- MD | WSNGTNZN11 | AS | 05/23/2018 | WASHINGTON ZONE 11 | MD | MA | 06/16/2018 |
301-321-3XXX | 5977 | BROADVIEW NETWORKS, INC. - DC | WSNGTNZN11 | AS | 05/12/2014 | WASHINGTON ZONE 11 | MD | MA | 06/09/2014 |
301-321-4XXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | WSNGTNZN11 | AS | 08/22/2016 | WASHINGTON ZONE 11 | MD | MA | 09/01/2016 |
301-321-5XXX | 9212 | VERIZON MARYLAND, INC. | WSNGTNZN11 | AS | 11/15/2005 | WASHINGTON ZONE 11 | MD | MA | 12/12/2005 |
301-321-6XXX | 2593 | CORE COMMUNICATIONS, INC.- MD | WSNGTNZN11 | AS | 05/23/2018 | WASHINGTON ZONE 11 | MD | MA | 06/16/2018 |
301-321-7XXX | 876D | ONVOY, LLC - MD | WSNGTNZN11 | AS | 12/08/2015 | WASHINGTON ZONE 11 | MD | MA | 01/07/2016 |
301-321-8XXX | 876D | ONVOY, LLC - MD | WSNGTNZN11 | AS | 12/08/2015 | WASHINGTON ZONE 11 | MD | MA | 01/07/2016 |
301-321-9XXX | 2593 | CORE COMMUNICATIONS, INC.- MD | WSNGTNZN11 | AS | 10/12/2018 | WASHINGTON ZONE 11 | MD | MA | 10/24/2018 |
301-321-XXXX | 876D | ONVOY, LLC - MD | WSNGTNZN11 | AS | | WASHINGTON ZONE 11 | MD | | |
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