You are reviewing the Area Code (NPA/NXX) report for 301-578. Did you mean to search the SMS short code 301578?
NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
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301-578-0XXX | 9212 | VERIZON MARYLAND, INC. | WSHNGTNZN3 | RT | | WASHINGTON ZONE 3 | MD | MA | |
301-578-1XXX | 9212 | VERIZON MARYLAND, INC. | WSHNGTNZN3 | RT | | WASHINGTON ZONE 3 | MD | MA | |
301-578-2XXX | 071F | BANDWIDTH.COM CLEC, LLC - MD | WSHNGTNZN3 | AS | 05/14/2020 | WASHINGTON ZONE 3 | MD | MA | 06/13/2020 |
301-578-3XXX | 964H | BARR TELL USA, INC. | WSHNGTNZN3 | AS | 04/26/2018 | WASHINGTON ZONE 3 | MD | MA | 05/08/2018 |
301-578-4XXX | 9212 | VERIZON MARYLAND, INC. | WSHNGTNZN3 | RT | | WASHINGTON ZONE 3 | MD | MA | |
301-578-5XXX | 071F | BANDWIDTH.COM CLEC, LLC - MD | WSHNGTNZN3 | AS | 05/14/2020 | WASHINGTON ZONE 3 | MD | MA | 06/13/2020 |
301-578-6XXX | 071F | BANDWIDTH.COM CLEC, LLC - MD | WSHNGTNZN3 | AS | 06/19/2018 | WASHINGTON ZONE 3 | MD | MA | 07/19/2018 |
301-578-7XXX | 508J | CENTURYLINK COMMUNICATIONS, LLC | WSHNGTNZN3 | AS | 02/16/2018 | WASHINGTON ZONE 3 | MD | MA | 03/12/2018 |
301-578-8XXX | 9212 | VERIZON MARYLAND, INC. | WSHNGTNZN3 | RT | | WASHINGTON ZONE 3 | MD | MA | |
301-578-9XXX | 9212 | VERIZON MARYLAND, INC. | WSHNGTNZN3 | RT | | WASHINGTON ZONE 3 | MD | MA | |
301-578-XXXX | 9212 | VERIZON MARYLAND, INC. | WSHNGTNZN3 | AS | | WASHINGTON ZONE 3 | MD | | |
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