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.
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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
440-491 1 Geneva OH   320   2013-10-11   
440-531 1 Berea OH   320   2024-03-07   
440-601 0 Chagrin Falls OH   320   2024-03-07   
440-637 9 Painesville OH   320   2013-09-06   
440-638 0 Strongsville OH   320   2024-03-07   
440-707 9 Oberlin OH   320   2013-09-06   
440-753 7 Hillcrest OH   320   2024-03-07   
440-861 A Chesterland OH CLEVOHEKMMD  320   2024-03-31   
440-861 1 Chesterland OH   320   2024-03-31   
440-965 3 Birmingham OH   320   2013-09-06   
442-243 5 Victorville: Victorville DA CA   730   2015-10-13   
442-267 0 Victorville: Hesperia DA CA   730   2015-10-31   
442-324 8 Indio CA   973   2015-08-07   
442-326 0 Independence CA   730   2015-09-25   
442-342 A Palm Springs CA PLSPCAXGXXZ  973      
442-342 1 Palm Springs CA   973   2021-01-21   
442-347 0 Barstow: Barstow DA CA   730   2015-09-19   
443-200 8 Woodlawn MD BLTMMDCHXHX  238   2021-08-15   
443-201 0 Westminster MD   238   2013-09-06   
443-214 1 Annapolis MD   238   2013-09-06   
443-228 7 Chase MD   238   2016-05-31   
443-230 8 Odenton MD   238   2016-01-04   
443-230 9 Odenton MD   238   2015-03-23   
443-231 9 Essex MD   238   2016-05-31   
443-251 1 Catonsville MD   238   2013-10-11   
443-265 8 Fork MD   238   2016-05-31   
443-272 8 Randallstown MD   238   2015-03-23   
443-273 8 Reisterstown MD   238   2016-01-04   
443-290 1 Parkville MD   238   2013-09-06   
443-294 9 West River MD   238   2015-03-23   
443-328 8 Sykesville MD   238   2016-05-31   
443-328 9 Sykesville MD   238   2015-03-21   
443-338 1 Sparks-Glencoe MD   238   2015-03-21   
443-338 5 Sparks-Glencoe MD   238   2016-05-31   
443-353 8 Cockeysville MD   238   2016-01-04   
443-354 9 Glen Burnie MD   238   2013-09-06   
443-396 6 Odenton MD   238   2017-07-07   
443-399 9 Dundalk MD   238   2013-09-06   
443-419 9 Glenwood MD   238   2015-03-21   
443-430 1 Columbia MD   238   2016-10-14   
443-432 6 Prince Frederick MD   238   2015-03-23   
443-441 8 Glenwood MD   238   2016-05-31   
443-456 0 Edgewood MD   238   2013-09-06   
443-456 5 Edgewood MD   238   2016-10-14   
443-461 7 Parkville MD   238   2016-10-14   
443-530 2 Dundalk MD   238   2016-10-14   
443-532 9 Prince Frederick MD   238   2016-01-04   
443-541 6 Cockeysville MD   238   2016-10-14   
443-576 8 Randallstown MD   238   2016-01-04   
443-578 9 Cockeysville MD   238   2015-03-23   
443-584 8 Crofton MD   238   2016-10-14   
443-584 9 Crofton MD   238   2015-03-21   
443-592 8 Elkridge MD   238   2019-04-26   
443-593 0 Elkton MD   238   2016-01-04   
443-593 6 Elkton MD   238   2015-03-23   
443-594 9 Sparrows Point MD   238   2016-10-14   
443-606 9 Fork MD   238   2015-03-21   
443-607 9 West River MD   238   2016-01-04   
443-626 6 Chase MD   238   2015-03-21   
443-648 8 Essex MD   238   2013-09-06   
443-649 8 Sparrows Point MD   238   2016-01-04   
443-650 2 Reisterstown MD   238   2016-10-14   
443-652 9 Towson MD   238   2016-10-14   
443-657 1 Randallstown MD   238   2016-10-14   
443-660 0 Pikesville MD   238   2013-09-06   
443-661 2 Waterloo MD   238   2017-07-07   
443-663 9 Woodlawn MD   238   2016-05-31   
443-685 7 Severn MD   238   2016-10-14   
443-702 9 Armiger-Gibson Island MD BLTMMDCHXHX  238   2021-08-15   
443-707 1 Aberdeen MD   236   2014-08-08   
443-733 8 Waterloo MD   238   2016-05-31   
443-734 0 Severn MD   238   2013-09-06   
443-737 8 Waterloo MD   238   2015-03-21   
443-753 8 Waterloo (Washington DC LATA) MD   236   2016-05-31   
443-775 8 Annapolis MD   238   2016-05-31   
443-776 9 Elkridge MD   238   2015-03-23   
443-784 0 Armiger-Gibson Island MD   238   2013-09-06   
443-792 1 Brooklyn Park-Linthicum MD   238   2015-03-23   
443-792 6 Brooklyn Park-Linthicum MD   238   2016-01-04   
443-828 2 Ellicott City MD   238   2013-09-06   
443-881 1 Reisterstown MD   238   2015-03-23   
443-906 8 Severna Park MD   238   2016-05-31   
443-906 9 Severna Park MD   238   2015-03-21   
443-910 9 Bel Air MD   238   2013-09-06   
443-917 0 Columbia MD   238   2013-09-06   
443-943 8 Sparrows Point MD   238   2015-03-23   
445-212 A Philadelphia Zone 1 PA PHLAPAFGX3Y  228      
445-212 1 Philadelphia Zone 1 PA   228   2020-11-06   
445-600 8 Philadelphia Suburban Zone 39 PA   228   2018-12-10   
445-600 9 Philadelphia Suburban Zone 39 PA   228   2018-12-10   
447-201 A Champaign-Urbana IL CHMPILCPXFY  370      
447-201 1 Champaign-Urbana IL CHMPILCPXFY  370   2021-04-24   
447-202 A Springfield IL SPFDILESX1Y  374      
447-202 1 Springfield IL   374   2021-04-24   
447-207 9 Fithian IL   370   2022-04-09   
447-216 1 Danville IL   370   2022-04-07   
447-244 0 Georgetown IL   370   2022-04-09   
447-281 A Quincy IL JCVLILXC4MD  376   2024-01-04   
447-281 1 Quincy IL JCVLILXC4MD  376   2024-01-04   
447-296 A Mattoon IL MTONILXC3MD  976   2024-06-09   

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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