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.

Switch: BLTMMDCH40Z

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
667-351 2 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-11-29   
667-351 3 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-11-29   
667-351 6 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-11-28   
667-351 7 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-11-28   
667-351 8 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-11-28   
667-351 9 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-11-28   
667-352 A Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
667-352 0 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-04-20   
667-352 2 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-09-20   
667-352 4 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-10-22   
667-352 5 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2017-11-29   
667-352 6 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2017-11-29   
667-352 7 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-01-18   
667-352 8 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-01-18   
667-352 9 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2017-01-13   
667-353 1 Cardiff MD 5562 METROPCS, INC. 238   2021-05-28   
667-354 A Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-354 6 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-12-09   
667-354 7 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-12-09   
667-354 8 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-12-09   
667-354 9 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-12-09   
667-355 A Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
667-355 0 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2022-01-01   
667-355 1 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2022-01-01   
667-355 2 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2022-01-01   
667-355 3 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2022-01-01   
667-355 4 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2022-02-24   
667-355 5 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-12-09   
667-355 6 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-12-09   
667-355 7 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-12-09   
667-355 8 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-12-09   
667-355 9 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-12-09   
667-359 8 Columbia MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-06-13   
667-359 9 Columbia MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-06-13   
667-360 4 Odenton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-07-05   
667-367 6 Westminster MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-10-31   
667-368 A Elkton MD 6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 238      
667-368 8 Elkton MD 6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 238   2022-01-08   
667-368 9 Elkton MD 6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 238   2022-01-08   
667-369 A Catonsville MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-369 5 Catonsville MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-21   
667-369 8 Catonsville MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-21   
667-369 9 Catonsville MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-21   
667-371 A Ellicott City MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-371 9 Ellicott City MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-13   
667-375 A Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-375 1 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-07-22   
667-375 4 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-09-30   
667-375 5 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-09-30   
667-375 8 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-21   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 >>

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.