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.

OCN: 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC

<< 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 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
667-271 0 Salisbury MD SLBRMDSCXMD  242   2020-04-06   
667-289 A Aberdeen MD BLTMMDCH40Z  236      
667-289 0 Aberdeen MD BLTMMDCH40Z  236   2021-01-01   
667-289 1 Aberdeen MD BLTMMDCH40Z  236   2021-01-01   
667-289 3 Aberdeen MD BLTMMDCH40Z  236   2021-01-01   
667-289 4 Aberdeen MD   236   2021-01-23   
667-289 5 Aberdeen MD   236   2021-01-23   
667-289 6 Aberdeen MD   236   2021-01-23   
667-289 7 Aberdeen MD BLTMMDCH40Z  236   2020-10-16   
667-289 8 Aberdeen MD BLTMMDCH40Z  236   2020-10-16   
667-289 9 Aberdeen MD BLTMMDCH40Z  236   2020-10-16   
667-294 0 Towson MD BLTMMDCH40Z  238   2020-11-06   
667-298 A Aberdeen MD   236   2021-03-20   
667-298 7 Aberdeen MD   236   2021-03-20   
667-298 8 Aberdeen MD   236   2021-03-20   
667-298 9 Aberdeen MD   236   2021-03-20   
667-303 0 Baltimore MD BLTMMDCH40Z  238   2015-08-09   
667-303 4 Baltimore MD BLTMMDCH40Z  238   2015-08-09   
667-303 5 Baltimore MD BLTMMDCH40Z  238   2015-08-09   
667-303 6 Baltimore MD BLTMMDCH40Z  238   2015-08-09   
667-303 7 Baltimore MD BLTMMDCH40Z  238   2015-08-09   
667-303 8 Baltimore MD BLTMMDCH40Z  238   2015-08-09   
667-303 9 Baltimore MD BLTMMDCH40Z  238   2015-10-09   
667-305 0 Pikesville MD BLTMMDCH40Z  238   2016-02-06   
667-305 8 Pikesville MD BLTMMDCH40Z  238   2016-07-14   
667-312 0 Baltimore MD BLTMMDCH40Z  238   2015-10-09   
667-312 8 Baltimore MD BLTMMDCH40Z  238   2015-10-09   
667-312 9 Baltimore MD BLTMMDCH40Z  238   2015-10-09   
667-321 A Prince Frederick MD BLTMMDCH40Z  238      
667-321 9 Prince Frederick MD BLTMMDCH40Z  238   2016-08-18   
667-336 9 Bel Air MD BLTMMDCH40Z  238   2019-01-19   
667-344 8 Chase MD BLTMMDCH40Z  238   2019-01-19   
667-352 A Aberdeen MD BLTMMDCH40Z  236      
667-352 0 Aberdeen MD BLTMMDCH40Z  236   2018-04-20   
667-352 2 Aberdeen MD BLTMMDCH40Z  236   2018-09-20   
667-352 4 Aberdeen MD BLTMMDCH40Z  236   2018-10-22   
667-352 5 Aberdeen MD BLTMMDCH40Z  236   2017-11-29   
667-352 6 Aberdeen MD BLTMMDCH40Z  236   2017-11-29   
667-352 7 Aberdeen MD BLTMMDCH40Z  236   2018-01-18   
667-352 8 Aberdeen MD BLTMMDCH40Z  236   2018-01-18   
667-352 9 Aberdeen MD BLTMMDCH40Z  236   2017-01-13   
667-372 9 Cambridge MD BLTMMDCH40Z  242   2020-04-02   
667-444 1 Baltimore MD BLTMMDCH40Z  238   2016-02-06   
667-444 8 Baltimore MD BLTMMDCH40Z  238   2016-02-06   
667-444 9 Baltimore MD BLTMMDCH40Z  238   2016-02-06   
667-458 5 Annapolis MD BLTMMDCH40Z  238   2019-01-19   
667-600 1 Baltimore MD BLTMMDCH40Z  238   2016-02-06   
667-600 8 Baltimore MD BLTMMDCH40Z  238   2016-02-06   
667-600 9 Baltimore MD BLTMMDCH40Z  238   2016-02-06   
667-677 0 Baltimore MD BLTMMDCH40Z  238   2016-02-06   

<< 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 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 >>

Last updated: Sun, 28 Feb 2021 19:06:05 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.