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: BLTMMDCHXUX

1 2 3 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-571 5 Laurel (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-742 5 Washington Zone 14 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-742 6 Washington Zone 14 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-742 8 Washington Zone 14 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-749 2 Laurel (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-749 6 Laurel (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-749 7 Laurel (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-759 0 Washington Zone 15 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-759 1 Washington Zone 15 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-759 4 Washington Zone 15 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-759 7 Washington Zone 15 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-820 0 Ashton (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-820 1 Ashton (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-820 5 Ashton (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-820 7 Ashton (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-820 8 Ashton (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-881 1 Washington Zone 13 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-881 2 Washington Zone 13 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-881 5 Washington Zone 13 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
240-881 8 Washington Zone 13 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
301-307 6 Washington Zone 13 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
301-889 2 Washington Zone 14 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
301-970 6 Washington Zone 14 (Baltimore LATA) MD 624H ONVOY SPECTRUM, LLC 238      
410-210 0 Glen Burnie MD 624H ONVOY SPECTRUM, LLC 238      
410-210 1 Glen Burnie MD 624H ONVOY SPECTRUM, LLC 238      
410-210 3 Glen Burnie MD 624H ONVOY SPECTRUM, LLC 238      
410-210 8 Glen Burnie MD 624H ONVOY SPECTRUM, LLC 238      
410-317 0 Armiger-Gibson Island MD 624H ONVOY SPECTRUM, LLC 238      
410-317 3 Armiger-Gibson Island MD 624H ONVOY SPECTRUM, LLC 238      
410-405 3 Fork MD 624H ONVOY SPECTRUM, LLC 238      
410-405 6 Fork MD 624H ONVOY SPECTRUM, LLC 238      
410-410 A Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
410-410 0 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
410-410 1 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
410-410 2 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
410-410 3 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
410-410 4 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
410-410 5 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
410-410 6 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
410-410 7 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
410-410 8 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
410-410 9 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
410-510 2 Fork MD 624H ONVOY SPECTRUM, LLC 238      
410-510 4 Fork MD 624H ONVOY SPECTRUM, LLC 238      
410-510 6 Fork MD 624H ONVOY SPECTRUM, LLC 238      
410-559 4 Pikesville MD 624H ONVOY SPECTRUM, LLC 238      
410-660 4 Elkridge MD 624H ONVOY SPECTRUM, LLC 238      
410-697 2 Millersville MD 624H ONVOY SPECTRUM, LLC 238      
410-702 1 Reisterstown MD 624H ONVOY SPECTRUM, LLC 238      
410-753 5 Pikesville MD 624H ONVOY SPECTRUM, LLC 238      
410-753 7 Pikesville MD 624H ONVOY SPECTRUM, LLC 238      
443-228 9 Chase MD 624H ONVOY SPECTRUM, LLC 238      
443-300 4 Sykesville MD 624H ONVOY SPECTRUM, LLC 238      
443-343 6 Millersville MD 624H ONVOY SPECTRUM, LLC 238      
443-407 3 Dundalk MD 624H ONVOY SPECTRUM, LLC 238      
443-426 3 Randallstown MD 624H ONVOY SPECTRUM, LLC 238      
443-483 5 Cardiff MD 624H ONVOY SPECTRUM, LLC 238      
443-483 9 Cardiff MD 624H ONVOY SPECTRUM, LLC 238      
443-484 9 Edgewood MD 624H ONVOY SPECTRUM, LLC 238      
443-485 2 Elkton MD 624H ONVOY SPECTRUM, LLC 238      
443-485 3 Elkton MD 624H ONVOY SPECTRUM, LLC 238      
443-543 7 Arbutus MD 624H ONVOY SPECTRUM, LLC 238      
443-575 1 Arbutus MD 624H ONVOY SPECTRUM, LLC 238      
443-575 3 Arbutus MD 624H ONVOY SPECTRUM, LLC 238      
443-575 8 Arbutus MD 624H ONVOY SPECTRUM, LLC 238      
443-575 9 Arbutus MD 624H ONVOY SPECTRUM, LLC 238      
443-581 5 Chase MD 624H ONVOY SPECTRUM, LLC 238      
443-582 7 Churchville MD 624H ONVOY SPECTRUM, LLC 238      
443-584 0 Crofton MD 624H ONVOY SPECTRUM, LLC 238      
443-590 2 Reisterstown MD 624H ONVOY SPECTRUM, LLC 238      
443-592 0 Elkridge MD 624H ONVOY SPECTRUM, LLC 238      
443-592 1 Elkridge MD 624H ONVOY SPECTRUM, LLC 238      
443-592 2 Elkridge MD 624H ONVOY SPECTRUM, LLC 238      
443-592 4 Elkridge MD 624H ONVOY SPECTRUM, LLC 238      
443-626 1 Chase MD 624H ONVOY SPECTRUM, LLC 238      
443-626 3 Chase MD 624H ONVOY SPECTRUM, LLC 238      
443-626 9 Chase MD 624H ONVOY SPECTRUM, LLC 238      
443-656 1 Columbia MD 624H ONVOY SPECTRUM, LLC 238      
443-673 1 Brooklyn Park-Linthicum MD 624H ONVOY SPECTRUM, LLC 238      
443-689 9 Cockeysville MD 624H ONVOY SPECTRUM, LLC 238      
443-696 1 Dundalk MD 624H ONVOY SPECTRUM, LLC 238      
443-696 5 Dundalk MD 624H ONVOY SPECTRUM, LLC 238      
443-709 1 Arbutus MD 624H ONVOY SPECTRUM, LLC 238      
443-709 6 Arbutus MD 624H ONVOY SPECTRUM, LLC 238      
443-748 5 Millersville MD 624H ONVOY SPECTRUM, LLC 238      
443-781 1 Armiger-Gibson Island MD 624H ONVOY SPECTRUM, LLC 238      
443-781 2 Armiger-Gibson Island MD 624H ONVOY SPECTRUM, LLC 238      
443-830 9 Catonsville MD 624H ONVOY SPECTRUM, LLC 238      
443-899 0 Waterloo MD 624H ONVOY SPECTRUM, LLC 238      
443-899 2 Waterloo MD 624H ONVOY SPECTRUM, LLC 238      
443-987 9 Bel Air MD 624H ONVOY SPECTRUM, LLC 238      
667-215 2 Elkton MD 624H ONVOY SPECTRUM, LLC 238      
667-250 A Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
667-250 6 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
667-262 A Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
667-262 3 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
667-262 4 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
667-262 8 Baltimore MD 624H ONVOY SPECTRUM, LLC 238      
667-263 7 Dundalk MD 624H ONVOY SPECTRUM, LLC 238      
667-268 3 Darlington MD 624H ONVOY SPECTRUM, LLC 238      

1 2 3 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.