956-295-2161 931-626-1964 970-581-4819
269-668-6221 806-881-1099 913-426-0076
407-307-6414 704-264-9025 800-211-9705
Index - Area Code 240 - Maryland Prefix 240-575 - FREDERICK, MD (LEVEL 3 COMMUNICATIONS, LLC - MD)NPA-NXX-X Location Phone Company 240-575-0XXX FREDERICK, MD OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240-575-1XXX FREDERICK, MD LEVEL 3 COMMUNICATIONS, LLC - MD 240-575-2XXX FREDERICK, MD LEVEL 3 COMMUNICATIONS, LLC - MD 240-575-3XXX FREDERICK, MD LEVEL 3 COMMUNICATIONS, LLC - MD 240-575-4XXX FREDERICK, MD CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240-575-5XXX FREDERICK, MD LEVEL 3 COMMUNICATIONS, LLC - MD 240-575-6XXX FREDERICK, MD LEVEL 3 COMMUNICATIONS, LLC - MD 240-575-7XXX FREDERICK, MD US LEC OF MARYLAND, INC. 240-575-8XXX FREDERICK, MD NEW CINGULAR WIRELESS PCS, LLC - DC 240-575-9XXX FREDERICK, MD COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD