Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Waldorf, MD

<< 1 2 3 4 5 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-374 0 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-374 1 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-374 2 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-374 3   2593 CORE COMMUNICATIONS, INC.- MD 236      
301-374 4   2593 CORE COMMUNICATIONS, INC.- MD 236      
301-374 5 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-374 6 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-374 7   2593 CORE COMMUNICATIONS, INC.- MD 236      
301-374 8 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
301-374 9 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-396 A WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-396 0 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-396 1 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-396 2 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
301-396 3 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-396 4 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-396 5 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-396 6   2593 CORE COMMUNICATIONS, INC.- MD 236      
301-396 7 VINNVACBDS0  876D ONVOY, LLC - MD 236      
301-396 8 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-396 9 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-399 A   5562 METROPCS, INC. 236      
301-399 0 BTVLMD12CMA  5562 METROPCS, INC. 236      
301-399 1 BTVLMD127MD  5562 METROPCS, INC. 236      
301-399 2 BTVLMD127MD  5562 METROPCS, INC. 236      
301-399 3 BTVLMD127MD  5562 METROPCS, INC. 236      
301-399 4 BTVLMD127MD  5562 METROPCS, INC. 236      
301-399 5 BTVLMD127MD  5562 METROPCS, INC. 236      
301-399 6 BTVLMD127MD  5562 METROPCS, INC. 236      
301-399 7 BTVLMD127MD  5562 METROPCS, INC. 236      
301-399 8 BTVLMD127MD  5562 METROPCS, INC. 236      
301-399 9 BTVLMD127MD  5562 METROPCS, INC. 236      
301-535 A BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-542 A WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-542 0 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-542 1 WASHDCMTX7X  2697 CTC COMMUNICATIONS CORP. - MD 236      
301-542 2 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-542 3 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-542 4 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-542 5 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-542 6 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-542 7 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-542 8 HRNDVACKAMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 236      
301-542 9 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-553 A SLSPMDSSX6X  6630 USA MOBILITY WIRELESS, INC. 236      
301-597 A BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-597 0 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
301-597 1 VINNVACBDS0  876D ONVOY, LLC - MD 236      
301-597 2 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
301-597 3 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
301-597 4 VINNVACBDS0  876D ONVOY, LLC - MD 236      
301-597 5 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
301-597 6 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
301-597 7 VINNVACBDS0  876D ONVOY, LLC - MD 236      
301-597 8 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-597 9 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-609 A LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-609 0 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-609 1 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-609 2 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-609 3 LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-609 4 LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-609 5 LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-609 6 LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-609 7 LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-609 8 LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-609 9 LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-632 A WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 0   2593 CORE COMMUNICATIONS, INC.- MD 236      
301-632 1   2593 CORE COMMUNICATIONS, INC.- MD 236      
301-632 2 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 3 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 4 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 5 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 6 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 7 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 8 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 9 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-638 A WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-638 0 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-638 1 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-638 2 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-638 3 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-638 4 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-638 5 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-638 6   2593 CORE COMMUNICATIONS, INC.- MD 236      
301-638 7 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-638 8 VINNVACBDS0  876D ONVOY, LLC - MD 236      
301-638 9 WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-643 A WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-645 A WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-653 A BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-659 A BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-659 0 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-659 1 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-659 2 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-659 3 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-659 4 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-659 5 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-659 6 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      

<< 1 2 3 4 5 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.