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: LIVNMIMNRP0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
313-937 A Detroit Zone 5 MI 9323 MICHIGAN BELL TEL CO 340      
313-937 0 Detroit Zone 5 MI 9323 MICHIGAN BELL TEL CO 340      
313-937 1 Detroit Zone 5 MI 9323 MICHIGAN BELL TEL CO 340      
313-937 2 Detroit Zone 5 MI 9323 MICHIGAN BELL TEL CO 340      
313-937 3 Detroit Zone 5 MI 9323 MICHIGAN BELL TEL CO 340      
313-937 4 Detroit Zone 5 MI 9323 MICHIGAN BELL TEL CO 340      
313-937 5 Detroit Zone 5 MI 9323 MICHIGAN BELL TEL CO 340      
313-937 7 Detroit Zone 5 MI 9323 MICHIGAN BELL TEL CO 340      
313-937 8 Detroit Zone 5 MI 9323 MICHIGAN BELL TEL CO 340      
313-937 9 Detroit Zone 5 MI 9323 MICHIGAN BELL TEL CO 340      
734-261 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-266 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-334 A Wayne MI 9323 MICHIGAN BELL TEL CO 340      
734-334 1 Wayne MI 9323 MICHIGAN BELL TEL CO 340      
734-334 2 Wayne MI 9323 MICHIGAN BELL TEL CO 340      
734-334 4 Wayne MI 9323 MICHIGAN BELL TEL CO 340      
734-334 5 Wayne MI 9323 MICHIGAN BELL TEL CO 340      
734-334 9 Wayne MI 9323 MICHIGAN BELL TEL CO 340      
734-367 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-367 0 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-367 1 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-367 2 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-367 3 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-367 5 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-367 6 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-367 7 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-367 8 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-367 9 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-421 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-422 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-425 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-427 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-458 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-466 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-466 0 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-466 1 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-466 2 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-466 3 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-466 4 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-466 6 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-466 7 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-466 8 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-466 9 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-513 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-522 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-523 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-524 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-524 0 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-524 1 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-524 2 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-524 3 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-524 5 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-524 6 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-524 7 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-524 8 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-524 9 Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-525 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      
734-762 A Livonia MI 9323 MICHIGAN BELL TEL CO 340      

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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