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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OCN: 3700 MICRONESIAN TELECOMMUNICATIONS CORPORATION

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
670-233 A Saipan MP SPSNNNXCRS1  870      
670-234 A Saipan MP SPSNNNZBDS1  870      
670-235 A Saipan MP SPSNNNZBDS1  870      
670-236 A Saipan MP SPSNNNZBDS1  870      
670-237 A Saipan MP SPSNNNZBDS1  870      
670-256 A Saipan MP SPSNNNXDRS1  870      
670-288 A Saipan MP SPSNNNXBRS1  870      
670-321 A Saipan MP SPSNNNXARS1  870      
670-322 A Saipan MP SPSNNNXARS1  870      
670-323 A Saipan MP SPSNNNXARS1  870      
670-328 A Saipan MP SPSNNNZBDS1  870      
670-433 A Tinian MP TNINNNXADS1  870      
670-532 A Rota MP ROTANNXARS1  870      
670-664 A Saipan MP SPSNNNZBDS1  870      
670-682 A Saipan MP SPSNNNZBDS1  870      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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