Local Calling Guide
Area code/prefix search
Frontier, MI
NPA-NXX | BLOCK | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|
517-254 | A | FRNTMIXIRSA | 4417 FRONTIER COMMUNICATIONS OF MICHIGAN, INC. | 346 | |||
517-891 | A | MDTPMICODS0 | 3535 ACD TELECOM, INC. - MI | 346 | |||
517-891 | 2 | LNNGMIMNX5Z | 543C ONVOY, LLCV - MI | 346 | 2021-07-11 | ||
517-891 | 3 | MDTPMICODS0 | 3535 ACD TELECOM, INC. - MI | 346 | |||
517-891 | 4 | LNNGMIMNX5Z | 543C ONVOY, LLCV - MI | 346 | 2021-08-15 | ||
517-891 | 8 | LNNGMIMNX5Z | 543C ONVOY, LLCV - MI | 346 | 2018-10-12 |
Last updated: Fri, 22 Mar 2024 03:02:44 UTC
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