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.

NPA: 641 [Rate centres in NPA 641] [Dial plan for NPA 641]

NXX: 328

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-328 A Marshalltown IA DESMIAITX6X  6529 T-MOBILE USA, INC. 632      
641-328 0 Marshalltown IA   221F ONVOY, LLC - IA 632      
641-328 1 Marshalltown IA DESMIADTX7X  751F MCC TELEPHONY OF IOWA, LLC - IA 632      
641-328 2 Marshalltown IA DESMIADTXZX  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632      
641-328 3 Marshalltown IA DESMIADTXZX  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632      
641-328 4 Marshalltown IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632      
641-328 5 Marshalltown IA DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632      
641-328 6 Marshalltown IA DESMIAITGT5  444G AUREON COMMUNICATIONS, LLC 632      
641-328 7 Marshalltown IA DESMIADTXJX  508J CENTURYLINK COMMUNICATIONS, LLC 632      
641-328 8 Marshalltown IA DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632      
641-328 9 Marshalltown IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.