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| npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
| 517-522 | MI | FRONTIER NORTH, INC. - MI (Frontier Communications) | 0695 | GRASS LAKE | GRLKMIXGDS0 | 00/00/0000 | Prefix Type: ICO Switch Name: GRASS LAKE Switch Type: NTDMSSSO LATA: Lansing MI (346) Tandem: LNNGMIMN20T Detailed Switch Info |
| Thousands block for 517-522 | |||||||
| 517-522-0 | MI | TELNET WORLDWIDE, INC. | 4632 | GRASS LAKE | NOCLLIKNOWN | 08/03/2005 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Lansing MI (346) Tandem: N/A Detailed Switch Info |
| 517-522-1 | MI | TELEPORT COMMUNICATIONS AMERICA, LLC - MI (AT&T) | 770E | GRASS LAKE | NOCLLIKNOWN | 02/19/2016 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Lansing MI (346) Tandem: N/A Detailed Switch Info |
| 517-522-2 | MI | LEVEL 3 COMMUNICATIONS, LLC - MI (CenturyLink, Inc) | 6120 | GRASS LAKE | NOCLLIKNOWN | 11/11/2009 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Lansing MI (346) Tandem: N/A Detailed Switch Info |
| 517-522-3 | MI | FRONTIER NORTH, INC. - MI (Frontier Communications) | 0695 | GRASS LAKE | GRLKMIXGDS0 | N/A | Prefix Type: ICO Switch Name: GRASS LAKE Switch Type: NTDMSSSO LATA: Lansing MI (346) Tandem: LNNGMIMN20T Detailed Switch Info |
| 517-522-4 | MI | FRONTIER NORTH, INC. - MI (Frontier Communications) | 0695 | GRASS LAKE | GRLKMIXGDS0 | N/A | Prefix Type: ICO Switch Name: GRASS LAKE Switch Type: NTDMSSSO LATA: Lansing MI (346) Tandem: LNNGMIMN20T Detailed Switch Info |
| 517-522-5 | MI | FRONTIER NORTH, INC. - MI (Frontier Communications) | 0695 | GRASS LAKE | GRLKMIXGDS0 | N/A | Prefix Type: ICO Switch Name: GRASS LAKE Switch Type: NTDMSSSO LATA: Lansing MI (346) Tandem: LNNGMIMN20T Detailed Switch Info |
| 517-522-6 | MI | FRONTIER NORTH, INC. - MI (Frontier Communications) | 0695 | GRASS LAKE | GRLKMIXGDS0 | N/A | Prefix Type: ICO Switch Name: GRASS LAKE Switch Type: NTDMSSSO LATA: Lansing MI (346) Tandem: LNNGMIMN20T Detailed Switch Info |
| 517-522-7 | MI | ONVOY, LLCV - MI (Inteliquent) | 543C | GRASS LAKE | NOCLLIKNOWN | 02/06/2007 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Lansing MI (346) Tandem: N/A Detailed Switch Info |
| 517-522-8 | MI | FRONTIER NORTH, INC. - MI (Frontier Communications) | 0695 | GRASS LAKE | GRLKMIXGDS0 | N/A | Prefix Type: ICO Switch Name: GRASS LAKE Switch Type: NTDMSSSO LATA: Lansing MI (346) Tandem: LNNGMIMN20T Detailed Switch Info |
| 517-522-9 | MI | 123.NET, INC. | 2550 | GRASS LAKE | NOCLLIKNOWN | 03/06/2017 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Lansing MI (346) Tandem: N/A Detailed Switch Info |