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.

NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

Block: A

<< 1 2 3 4 5 6 7 8 9 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-653 A Brooklyn Park-Linthicum MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
667-656 A Edgewood MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-657 A Chase MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-660 A Marion MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-661 A Snow Hill MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-662 A Smith Island MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-663 A Ocean City MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-664 A Trappe MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-665 A Hillsboro MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242      
667-666 A West River MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-667 A Pikesville MD   876D ONVOY, LLC - MD 238   2025-10-16   
667-668 A Fallston MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-669 A Galena MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242      
667-670 A Sudlersville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-676 A Willards MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-677 A Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-678 A Columbia MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-686 A Ellicott City MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
667-687 A Warwick MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-688 A Parkville MD BLTQMD01AMD  965H FRACTEL, LLC 238      
667-693 A Vienna MD SLBRMD90BMD  516J TON80 COMMUNICATIONS, LLC 242      
667-701 A Elkridge MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-706 A Elkton MD BLTMMDCH40Z  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 238      
667-722 A Glenwood MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
667-727 A Sudlersville MD ESTNMDBNGT0  2593 CORE COMMUNICATIONS, INC.- MD 242      
667-737 A Perryville MD BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238      
667-743 A Queenstown MD SLBRMD90BMD  516J TON80 COMMUNICATIONS, LLC 242      
667-746 A Glenwood MD BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238      
667-755 A Pikesville MD BLTMMDCHX3Y  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238      
667-758 A Silver Run MD BLTQMD01AMD  965H FRACTEL, LLC 238      
667-766 A Stevensville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-767 A St Michaels MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-770 A Baltimore MD BLTMMD915MD  691H AIRUS, INC. - MD 238      
667-771 A Baltimore MD BLTMMDCHYMD  530H WIDE VOICE, LLC - MD 238      
667-772 A Sparks-Glencoe MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-775 A Millington MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242      
667-776 A Baltimore MD BLTMMDCHXVX  321J HD CARRIER LLC 238      
667-777 A Severna Park MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
667-778 A Sparrows Point MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-786 A Columbia MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
667-788 A Westminster MD BLTMMD91DS2  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238      
667-800 A Salisbury MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-802 A Catonsville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-803 A Solomons MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
667-808 A Easton MD SLBRMD90DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 242      
667-810 A Salisbury MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-812 A Waterloo (Washington DC LATA) MD LARLMDDYDS0  9212 VERIZON MARYLAND, INC. 236      
667-824 A Edgewood MD BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238      
667-827 A Berlin MD SLBRMD90BMD  516J TON80 COMMUNICATIONS, LLC 242      
667-832 A Brooklyn Park-Linthicum MD BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238      

<< 1 2 3 4 5 6 7 8 9 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.