Input a CLLI:

Tip: A Partial CLLI can be entered, but must contain a minimum of the first 6 characters. I.E. 'DLLSTX'

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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
406-417MTNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)6010HELENAMSSLMTMA4MD05/28/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Great Falls MT (648)
Tandem: N/A
Detailed Switch Info
Thousands block for 406-417
406-417-0MTNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)6010HELENAMSSLMTMA4MD05/29/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Great Falls MT (648)
Tandem: N/A
Detailed Switch Info
406-417-5MTNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)6010HELENAMSSLMTMA4MD10/23/2023Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Great Falls MT (648)
Tandem: N/A
Detailed Switch Info
406-417-8MTNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)6010HELENAMSSLMTMA4MD02/25/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Great Falls MT (648)
Tandem: N/A
Detailed Switch Info
406-417-9MTNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)6010HELENAMSSLMTMA4MD12/12/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Great Falls MT (648)
Tandem: N/A
Detailed Switch Info
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