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: 842E COMMUNICATIONS 1 NETWORK, INC. - IA

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
515-602 A Clarion IA CLRIIAAFRS0  632      
515-602 2 Clarion IA CLRIIAAFRS0  632      
515-602 3 Clarion IA CLRIIAAFRS0  632      
515-602 6 Clarion IA CLRIIAAFRS0  632      
515-602 9 Clarion IA CLRIIAAFRS0  632      
515-603 A Eagle Grove IA EGGVIAAERS0  632      
515-603 3 Eagle Grove IA EGGVIAAERS0  632      
515-603 4 Eagle Grove IA EGGVIAAERS0  632      
515-603 5 Eagle Grove IA EGGVIAAERS0  632      
515-603 6 Eagle Grove IA EGGVIAAERS0  632      
515-604 A Humboldt IA GRNRIA06RS0  632      
515-604 1 Humboldt IA GRNRIA06RS0  632      
515-604 2 Humboldt IA GRNRIA06RS0  632      
515-604 3 Humboldt IA GRNRIA06RS0  632      
515-604 4 Humboldt IA GRNRIA06RS0  632      
515-604 5 Humboldt IA GRNRIA06RS0  632      
515-604 6 Humboldt IA GRNRIA06RS0  632      
515-604 9 Humboldt IA GRNRIA06RS0  632      
515-605 A Renwick IA EGGVIAAERS0  632      
515-605 5 Renwick IA EGGVIAAERS0  632      
515-605 9 Renwick IA EGGVIAAERS0  632      
515-606 A Webster City IA WBCYIAAJRS0  632      
515-606 5 Webster City IA WBCYIAAJRS0  632      
515-606 9 Webster City IA WBCYIAAJRS0  632      
641-843 0 Britt IA BRTTIA04RS0  632   2012-04-16   
641-925 A Garner IA GRNRIA06RS0  632      
641-925 1 Garner IA GRNRIA06RS0  632   2012-04-15   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.