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.
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Switch: DESMIAITX8X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
515-269 5 Fort Dodge IA 145J TERRA NOVA TELECOM INC. 632   2026-04-20   
515-445 6 Huxley IA 145J TERRA NOVA TELECOM INC. 632   2026-04-14   
515-538 2 Lakota IA 145J TERRA NOVA TELECOM INC. 632   2026-01-04   
515-551 9 Clarion IA 145J TERRA NOVA TELECOM INC. 632   2026-04-13   
515-655 A Des Moines IA 145J TERRA NOVA TELECOM INC. 632      
515-877 8 Polk City IA 145J TERRA NOVA TELECOM INC. 632   2026-03-28   
515-918 7 Des Moines IA 145J TERRA NOVA TELECOM INC. 632   2026-01-04   
641-212 1 Greenfield IA 145J TERRA NOVA TELECOM INC. 632   2026-01-04   
641-255 5 Mason City IA 145J TERRA NOVA TELECOM INC. 632   2026-04-20   
641-295 8 Oskaloosa IA 145J TERRA NOVA TELECOM INC. 632   2026-07-05   
641-351 1 Marshalltown IA 145J TERRA NOVA TELECOM INC. 632   2026-05-04   
641-580 2 Latimer IA 145J TERRA NOVA TELECOM INC. 632   2026-01-04   
641-710 9 Stacyville IA 145J TERRA NOVA TELECOM INC. 632   2026-02-05   
641-713 9 St Ansgar IA 145J TERRA NOVA TELECOM INC. 632   2026-01-04   
641-816 7 Greene IA 145J TERRA NOVA TELECOM INC. 632   2026-01-04   
641-860 9 Britt IA 145J TERRA NOVA TELECOM INC. 632   2026-06-08   
641-888 3 Grinnell IA 145J TERRA NOVA TELECOM INC. 632   2026-01-04   
641-892 9 Sheffield IA 145J TERRA NOVA TELECOM INC. 632   2026-01-04   
641-980 1 Ottumwa IA 145J TERRA NOVA TELECOM INC. 632   2026-04-13   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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