Local Calling Guide

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

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-318 9 Cockeysville MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2022-02-01   
667-319 A Chestertown MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242      
667-319 0 Chestertown MD SLBRMD905MD  197D VONAGE AMERICA LLC 242   2022-07-09   
667-319 1 Chestertown MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2024-07-06   
667-319 2 Chestertown MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-07-12   
667-319 3 Chestertown MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-07-12   
667-319 4 Chestertown MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2022-09-01   
667-319 5 Chestertown MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2022-04-25   
667-319 6 Chestertown MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2025-04-17   
667-319 7 Chestertown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2025-11-13   
667-319 8 Chestertown MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2021-06-19   
667-319 9 Chestertown MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2021-06-19   
667-320 A Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
667-320 0 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-09-03   
667-320 1 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-09-03   
667-320 2 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-09-03   
667-320 3 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-09-03   
667-320 4 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-09-03   
667-320 5 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-11-04   
667-320 6 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-11-04   
667-320 7 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-06-19   
667-320 8 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-06-19   
667-320 9 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-06-19   
667-321 A Prince Frederick MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-321 0 Prince Frederick MD   515J IP HORIZON LLC 238   2016-10-14   
667-321 1 Prince Frederick MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-10-02   
667-321 2 Prince Frederick MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-01-15   
667-321 3 Prince Frederick MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-06-24   
667-321 4 Prince Frederick MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2017-08-30   
667-321 5 Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2020-06-05   
667-321 6 Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2020-06-05   
667-321 7 Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-09-26   
667-321 8 Prince Frederick MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-03-14   
667-321 9 Prince Frederick MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-08-18   
667-322 A Waterloo (Washington DC LATA) MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
667-322 0 Waterloo (Washington DC LATA) MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-07-12   
667-322 1 Waterloo (Washington DC LATA) MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-03-03   
667-322 2 Waterloo (Washington DC LATA) MD ARTNVAARXJY  516J TON80 COMMUNICATIONS, LLC 236   2022-03-31   
667-322 3 Waterloo (Washington DC LATA) MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2021-07-13   
667-322 4 Waterloo (Washington DC LATA) MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-09-24   
667-322 5 Waterloo (Washington DC LATA) MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-10-15   
667-322 6 Waterloo (Washington DC LATA) MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-02-05   
667-322 7 Waterloo (Washington DC LATA) MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-02-05   
667-322 8 Waterloo (Washington DC LATA) MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-07-13   
667-322 9 Waterloo (Washington DC LATA) MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2021-07-13   
667-323 A Queenstown MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
667-323 1 Queenstown MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-11-15   
667-323 2 Queenstown MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-11-15   
667-323 4 Queenstown MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2021-07-27   
667-323 5 Queenstown MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-09-25   

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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