Local Calling Guide
Area code/prefix search
NPA: 313 [Rate centres in NPA 313] [Dial plan for NPA 313]
NXX: 344
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
313-344 | A | Detroit Zone 2 | MI | 6120 LEVEL 3 COMMUNICATIONS, LLC - MI | 340 | ||||
313-344 | 2 | Detroit Zone 2 | MI | SFLDMIMKDS2 | 933G PEERLESS NETWORK OF MICHIGAN, LLC - MI | 340 | 2024-11-20 | ||
313-344 | 3 | Detroit Zone 2 | MI | 6120 LEVEL 3 COMMUNICATIONS, LLC - MI | 340 | ||||
313-344 | 4 | Detroit Zone 2 | MI | FLNTMICD0MD | 829J PAETEC ITEL, LLC | 340 | 2006-05-05 | ||
313-344 | 5 | Detroit Zone 2 | MI | SFLDMITODS2 | 543C ONVOY, LLCV - MI | 340 | 2007-05-18 | ||
313-344 | 6 | Detroit Zone 2 | MI | SFLDMITODS2 | 543C ONVOY, LLCV - MI | 340 | 2007-05-18 | ||
313-344 | 7 | Detroit Zone 2 | MI | SFLDMIQJDS1 | 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 340 | 2006-07-06 |
Last updated: Sun, 01 Jun 2025 02:18:11 UTC
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