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.

Philadelphia Suburban Zone 30, PA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
835-998 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2024-11-21   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.