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.

Oakland, MD

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
240-212 A HGTWMD53DS0  2593 CORE COMMUNICATIONS, INC.- MD 240      
240-226 A CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-226 0 MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-226 1 CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-226 2 CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-226 3 HGTWMD53DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 240      
240-226 4 CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-226 5 CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-226 6 CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-226 7 CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-226 8 FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-226 9 HGTWMD53DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 240      
240-321 A CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
240-321 0 CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
240-321 1 CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
240-321 2 CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
240-321 3 CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
240-321 4 CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
240-321 5 CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
240-321 6 CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
240-321 7 CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
240-321 8 MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-321 9 HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-442 A THVLMDTVRS0  9212 VERIZON MARYLAND, INC. 240      
240-442 0 THVLMDTVRS0  9212 VERIZON MARYLAND, INC. 240      
240-442 1 FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
240-442 2 HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-442 3 FRDRMDLH7MD  281E YMAX COMMUNICATIONS CORP. - MD 240      
240-442 4   876D ONVOY, LLC - MD 240      
240-442 5 FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240      
240-442 6 FRDRMDLH7MD  281E YMAX COMMUNICATIONS CORP. - MD 240      
240-442 7 MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-442 8 HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-442 9 CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-488 A CMLDMDCM2MD  836G SHENTEL COMMUNICATIONS, LLC. - MD 240      
240-488 0 HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-488 1 CMLDMDCM2MD  836G SHENTEL COMMUNICATIONS, LLC. - MD 240      
240-488 2 HGTWMD53DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 240      
240-488 3 CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-488 4 FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240      
240-488 5 CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-488 6 HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-488 7 FRDRMDFRXKX  508J CENTURYLINK COMMUNICATIONS, LLC 240      
240-488 8 HGTWMD530MD  073H TELNYX LLC 240      
240-488 9   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-785 A HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-785 0 HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-785 1 HGTWMD539MD  939H COMMIO, LLC 240      
240-785 2   876D ONVOY, LLC - MD 240      
240-785 3 CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-785 4 CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-785 5 FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-785 7 CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
240-785 8 CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
240-785 9 HGTWMD53DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 240      
301-334 A OKLDMDOKDS0  9212 VERIZON MARYLAND, INC. 240      
301-387 A THVLMDTVRS0  9212 VERIZON MARYLAND, INC. 240      
301-387 0 THVLMDTVRS0  9212 VERIZON MARYLAND, INC. 240      
301-387 1   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
301-387 2 THVLMDTVRS0  9212 VERIZON MARYLAND, INC. 240      
301-387 3 THVLMDTVRS0  9212 VERIZON MARYLAND, INC. 240      
301-387 4 THVLMDTVRS0  9212 VERIZON MARYLAND, INC. 240      
301-387 5 THVLMDTVRS0  9212 VERIZON MARYLAND, INC. 240      
301-387 6 THVLMDTVRS0  9212 VERIZON MARYLAND, INC. 240      
301-387 7 THVLMDTVRS0  9212 VERIZON MARYLAND, INC. 240      
301-387 8 THVLMDTVRS0  9212 VERIZON MARYLAND, INC. 240      
301-387 9 THVLMDTVRS0  9212 VERIZON MARYLAND, INC. 240      
301-501 A MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
301-501 0 MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
301-501 1 MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
301-501 2 MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
301-501 3 MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
301-501 4   2593 CORE COMMUNICATIONS, INC.- MD 240      
301-501 5 FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
301-501 6 MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
301-501 7 MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
301-501 8 MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
301-501 9   2593 CORE COMMUNICATIONS, INC.- MD 240      
301-533 A OKLDMDOKDS0  9212 VERIZON MARYLAND, INC. 240      
301-533 0 OKLDMDOKDS0  9212 VERIZON MARYLAND, INC. 240      
301-533 1 OKLDMDOKDS0  9212 VERIZON MARYLAND, INC. 240      
301-533 2 OKLDMDOKDS0  9212 VERIZON MARYLAND, INC. 240      
301-533 3 OKLDMDOKDS0  9212 VERIZON MARYLAND, INC. 240      
301-533 4 OKLDMDOKDS0  9212 VERIZON MARYLAND, INC. 240      
301-533 5   2593 CORE COMMUNICATIONS, INC.- MD 240      
301-533 6 MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
301-533 7 FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
301-533 8 FRDRMDLH7MD  281E YMAX COMMUNICATIONS CORP. - MD 240      
301-533 9 MRBGWVBUHPA  4095 FIBERNET, LLC - WV 240      
301-616 A CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
301-849 A HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-859 A FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
301-859 0 HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-859 1   2593 CORE COMMUNICATIONS, INC.- MD 240      
301-859 2 FRDRMDFRXAX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 240      
301-859 3 FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
301-859 4 FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
301-859 5   5562 METROPCS, INC. 240      
301-859 6 CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
301-859 7 CMLDMDCMEMD  876D ONVOY, LLC - MD 240      

1 2 >>

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.