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.

Switch: SNDGCA0264Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
442-225 1 El Centro CA 145J TERRA NOVA TELECOM INC. 732      
619-270 0 El Cajon CA 145J TERRA NOVA TELECOM INC. 732      
619-365 1 Coronado CA 145J TERRA NOVA TELECOM INC. 732      
619-725 1 San Diego: San Diego DA CA 145J TERRA NOVA TELECOM INC. 732      
619-848 2 Del Mar CA 145J TERRA NOVA TELECOM INC. 732      
760-260 3 Julian CA 145J TERRA NOVA TELECOM INC. 732      
760-465 6 Borrego CA 145J TERRA NOVA TELECOM INC. 732      
760-483 0 Imperial CA 145J TERRA NOVA TELECOM INC. 732      
760-528 3 Holtville CA 145J TERRA NOVA TELECOM INC. 732      
760-539 5 San Marcos CA 145J TERRA NOVA TELECOM INC. 732      
858-208 5 Poway CA 145J TERRA NOVA TELECOM INC. 732      
858-228 8 La Jolla CA 145J TERRA NOVA TELECOM INC. 732      
858-247 A La Jolla CA 145J TERRA NOVA TELECOM INC. 732      
858-288 8 San Diego: Mira Mesa DA CA 145J TERRA NOVA TELECOM INC. 732      
858-367 6 Rancho Santa Fe CA 145J TERRA NOVA TELECOM INC. 732      
858-808 0 National City CA 145J TERRA NOVA TELECOM INC. 732      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.