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: 876D ONVOY, LLC - MD

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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
227-205 0 Washington Zone 4 MD VINNVACBDS0  236   2023-10-20   
227-205 1 Washington Zone 4 MD VINNVACBDS0  236   2023-10-20   
227-205 2 Washington Zone 4 MD VINNVACBDS0  236   2023-10-20   
227-206 4 Washington Zone 5 MD   236   2024-02-24   
227-206 5 Washington Zone 5 MD   236   2024-02-24   
227-206 6 Washington Zone 5 MD   236   2024-02-24   
227-206 7 Washington Zone 5 MD   236   2024-02-24   
227-214 0 Myersville MD CMLDMDCMEMD  240   2023-11-14   
227-214 1 Myersville MD CMLDMDCMEMD  240   2023-11-14   
227-218 0 Washington Zone 14 MD   236   2024-02-19   
227-218 1 Washington Zone 14 MD   236   2024-02-19   
227-218 2 Washington Zone 14 MD   236   2024-02-19   
227-218 3 Washington Zone 14 MD   236   2024-02-19   
227-219 5 Ashton MD   236   2024-02-24   
227-219 6 Ashton MD   236   2024-02-24   
227-219 7 Ashton MD   236   2024-02-24   
227-226 A Frederick MD   240   2024-03-30   
227-226 0 Frederick MD   240   2024-03-30   
227-226 1 Frederick MD   240   2024-03-30   
227-226 2 Frederick MD   240   2024-03-30   
227-226 3 Frederick MD   240   2024-03-30   
227-226 4 Frederick MD   240   2024-03-30   
227-226 5 Frederick MD   240   2024-03-30   
227-226 6 Frederick MD   240   2024-03-30   
227-227 A Gaithersburg MD   236   2024-03-30   
227-227 0 Gaithersburg MD   236   2024-03-30   
227-227 1 Gaithersburg MD   236   2024-03-30   
227-227 2 Gaithersburg MD   236   2024-03-31   
227-227 6 Gaithersburg MD   236   2024-04-13   
227-227 8 Gaithersburg MD   236   2024-04-04   
227-227 9 Gaithersburg MD   236   2024-04-04   
227-228 A Washington Zone 2 MD   236   2024-03-30   
227-228 0 Washington Zone 2 MD   236   2024-03-30   
227-228 1 Washington Zone 2 MD   236   2024-03-30   
227-228 2 Washington Zone 2 MD   236   2024-03-30   
227-229 A Washington Zone 4 MD   236   2024-03-30   
227-229 0 Washington Zone 4 MD   236   2024-03-30   
227-229 1 Washington Zone 4 MD   236   2024-03-30   
227-229 2 Washington Zone 4 MD   236   2024-03-30   
227-229 3 Washington Zone 4 MD   236   2024-03-30   
227-230 A Washington Zone 5 MD   236   2024-03-30   
227-230 0 Washington Zone 5 MD   236   2024-03-30   
227-230 1 Washington Zone 5 MD   236   2024-03-30   
227-230 2 Washington Zone 5 MD   236   2024-05-03   
227-231 A Washington Zone 6 MD   236   2024-03-30   
227-231 0 Washington Zone 6 MD   236   2024-03-30   
227-231 1 Washington Zone 6 MD   236   2024-03-30   
227-231 2 Washington Zone 6 MD   236   2024-03-30   
227-231 3 Washington Zone 6 MD   236   2024-03-30   
227-232 A Laurel MD   236   2024-04-05   

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 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.