Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 073H TELNYX LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-329 8 Waterloo (Washington DC LATA) MD WASHDC127MD  236   2017-04-27   
443-339 0 Sherwood Forest MD BLTMMDCHX7X  238   2017-04-26   
443-347 8 Cardiff MD BLTMMDCHX7X  238   2017-04-26   
443-355 0 Ellicott City MD BLTMMDCHX7X  238   2017-03-14   
443-363 8 Severn MD BLTMMDCHX7X  238   2017-04-25   
443-383 8 Silver Run MD BLTMMDCHX7X  238   2017-04-26   
443-396 8 Odenton MD BLTMMDCHX7X  238   2017-04-26   
443-434 A Federalsburg MD SLBRMDSBWMD  242      
443-434 1 Federalsburg MD SLBRMDSBWMD  242   2017-09-13   
443-437 8 Pocomoke MD SLBRMD902MD  242   2017-09-13   
443-439 3 Trappe MD SLBRMD902MD  242   2017-09-13   
443-441 3 Glenwood MD BLTMMDCHX7X  238   2017-04-26   
443-448 9 Denton MD SLBRMD902MD  242   2017-09-13   
443-461 8 Parkville MD BLTMMDCHX7X  238   2017-03-14   
443-484 1 Edgewood MD BLTMMDCHX7X  238   2017-03-14   
443-493 9 Delmar MD SLBRMD902MD  242   2017-09-13   
443-526 5 Havre de Grace MD BLTMMDCHX7X  238   2017-04-26   
443-530 8 Dundalk MD BLTMMDCHX7X  238   2017-04-25   
443-533 0 Jarrettsville MD BLTMMDCHX7X  238   2017-04-26   
443-541 7 Cockeysville MD BLTMMDCHX7X  238   2017-03-14   
443-566 8 Chesapeake City MD SLBRMD902MD  242   2017-09-13   
443-576 9 Randallstown MD BLTMMDCHX7X  238   2017-04-25   
443-582 0 Churchville MD BLTMMDCHX7X  238   2017-04-26   
443-585 6 Darlington MD BLTMMDCHX7X  238   2017-04-26   
443-601 8 Fallston MD BLTMMDCHX7X  238   2017-04-25   
443-606 8 Fork MD BLTMMDCHX7X  238   2017-04-25   
443-609 5 Sykesville MD BLTMMDCHX7X  238   2017-04-26   
443-639 0 Hampstead MD BLTMMDCHX7X  238   2017-04-26   
443-640 9 Bel Air MD BLTMMDCHX7X  238   2021-03-04   
443-645 9 Millersville MD BLTMMDCHX7X  238   2017-04-26   
443-646 9 North Beach MD BLTMMDCHX7X  238   2017-04-26   
443-647 5 New Windsor MD BLTMMDCHX7X  238   2017-04-26   
443-650 7 Reisterstown MD BLTMMDCHX7X  238   2017-04-25   
443-662 6 Sparks-Glencoe MD BLTMMDCHX7X  238   2017-04-26   
443-666 8 Chestertown MD SLBRMD902MD  242   2017-09-13   
443-727 4 Bishopville MD SLBRMD902MD  242   2017-09-13   
443-729 3 Woodlawn MD BLTMMDCHX7X  238   2017-04-25   
443-746 9 Easton MD SLBRMDSBXMD  242   2022-08-01   
443-777 0 Essex MD BLTMMDCHX7X  238   2017-03-14   
443-888 1 Princess Anne MD SLBRMD902MD  242   2017-09-13   
443-899 4 Waterloo MD BLTMMDCHX7X  238   2017-04-26   
443-936 0 Elkridge MD BLTMMDCHX7X  238   2017-04-25   
443-941 3 Elkton MD BLTMMDCHX7X  238   2021-03-04   
443-947 9 Perryville MD BLTMMDCHX7X  238   2017-04-26   
443-951 6 Annapolis MD BLTMMDCHX7X  238   2022-12-26   
443-967 7 North East MD BLTMMDCHX7X  238   2017-04-26   
443-971 0 Taneytown MD BLTMMDCHX7X  238   2017-04-26   
443-972 9 Cambridge MD SLBRMD902MD  242   2017-10-19   
443-978 6 Salisbury MD SLBRMDSBWMD  242   2024-03-31   
445-222 8 Pennsburg PA PHLAPAFGXJX  228   2018-11-24   
445-263 2 Yardley PA PHLAPAFGXCX  228   2023-03-05   
445-276 0 Philadelphia Suburban Zone 33 PA PHLAPAFGXCX  228   2023-04-28   
445-278 0 Philadelphia Suburban Zone 43 PA PHLAPAFGXCX  228   2023-03-13   
445-279 1 Philadelphia Suburban Zone 43 PA PHLAPAFGXCX  228   2024-12-02   
445-282 1 Doylestown PA PHLAPAFGXCX  228   2024-07-04   
445-288 5 Philadelphia Suburban Zone 33 PA PHLAPAFGXCX  228   2026-02-08   
445-296 0 Souderton PA PHLAPAFGXCX  228   2024-04-23   
445-296 2 Souderton PA PHLAPAFGXCX  228   2024-07-25   
445-296 8 Souderton PA PHLAPAFGXCX  228   2026-02-28   
445-304 8 Philadelphia Zone 3 PA PHLAPAFGXCX  228   2025-06-23   
445-305 5 Philadelphia Suburban Zone 45 PA PHLAPAFGXCX  228   2025-03-09   
445-323 0 Philadelphia Zone 4 PA PHLAPAFGXCX  228   2021-05-02   
445-622 2 Philadelphia Suburban Zone 32 PA PHLAPAFGXCX  228   2023-07-15   
445-666 8 Green Lane PA PHLAPAFGXJX  228   2018-11-24   
445-837 0 Plumsteadville PA PHLAPAFGXCX  228   2022-09-30   
445-999 8 Harleysville PA PHLAPAFGXCX  228   2021-03-07   
447-203 A Roberts IL CHMPILLWZMD  370      
447-203 0 Roberts IL CHMPILLWZMD  370   2021-05-24   
447-206 0 Columbus IL JCVLILAAZMD  376   2022-08-06   
447-207 0 Fithian IL CHMPILCPX0Y  370   2021-06-23   
447-209 2 Springfield IL   374   2026-10-04   
447-212 1 West Union IL TRRHIN022MD  938   2022-08-19   
447-228 2 Oreana IL SPFDILMBWMD  374   2024-08-17   
447-228 7 Oreana IL   374   2026-10-23   
447-228 9 Oreana IL SPFDILMBWMD  374   2024-07-01   
447-231 0 Chatham IL SPFDILMBWMD  374   2023-11-11   
447-247 0 Loda IL CHMPILCPX0Y  370   2021-04-19   
447-257 1 Mason City IL SPFDILMBWMD  374   2023-11-16   
447-261 0 Pleasant Plains IL SPFDILMBWMD  374   2023-11-16   
447-277 8 Philo IL CHMPILCPX0Y  370   2021-10-07   
447-300 1 Mansfield IL CHMPILCPX0Y  370   2021-03-30   
447-301 1 Paris IL TRRHIN022MD  938   2022-08-19   
447-333 0 Bismarck IL CHMPILCPX0Y  370   2021-03-30   
447-344 1 Mount Sterling IL JCVLILAAZMD  376   2022-08-12   
447-347 0 Cheneyville IL CHMPILCPX0Y  370   2021-10-01   
447-348 2 New Berlin IL SPFDILMBWMD  374   2024-08-17   
447-348 9 New Berlin IL SPFDILMBWMD  374   2024-06-30   
447-387 0 Sullivan IL SPFDILMBWMD  374   2023-11-16   
447-400 5 Sherman IL SPFDILMBWMD  374   2024-07-01   
447-400 6 Sherman IL SPFDILMBWMD  374   2024-08-17   
447-432 0 Ludlow IL CHMPILCPX0Y  370   2021-04-19   
447-444 0 Bondville IL CHMPILCPX0Y  370   2021-03-30   
447-465 0 Henning IL CHMPILCPX0Y  370   2021-03-30   
447-467 0 Williamsville IL SPFDILMBWMD  374   2023-11-16   
447-477 0 Fisher IL CHMPILCPX0Y  370   2021-04-12   
447-525 1 Pawnee IL SPFDILMBWMD  374   2024-07-01   
447-525 7 Pawnee IL   374   2026-09-07   
447-525 8 Pawnee IL SPFDILMBWMD  374   2024-08-17   
447-547 0 Thawville IL CHMPILCPX0Y  370   2021-10-07   
447-557 0 Sidell IL CHMPILCPX0Y  370   2021-10-07   

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Last updated: Sun, 01 Nov 2026 02:11:49 UTC

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