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: DRBRMIFBDS0

1 2 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
313-240 A Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-240 0 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-240 3 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-240 4 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-240 5 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-240 6 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-240 7 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-240 8 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-240 9 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-253 A Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-253 0 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-253 1 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-253 2 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-253 3 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-253 4 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-253 6 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-253 7 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-253 8 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-253 9 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-271 A Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-336 A Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-425 A Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-425 0 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-425 2 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-425 3 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-425 4 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-436 A Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-436 2 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-436 3 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-436 7 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-436 8 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-436 9 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-438 A Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-438 7 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-438 9 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-441 A Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-583 A Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-583 0 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-583 1 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-583 2 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-583 5 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-583 6 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-593 A Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-982 A Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-982 0 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-982 1 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-982 3 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-982 4 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-982 5 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      
313-982 6 Detroit Zone 6 MI 9323 MICHIGAN BELL TEL CO 340      

1 2 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.