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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
406-221MTAT&T - LOCAL (AT&T)7421BUTTEHLNAMTMAKMD02/13/2003Prefix Type: CLEC
Switch Name: HELENA
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
Thousands block for 406-221
406-221-0MTTELNYX LLC073HBUTTENOCLLIKNOWN01/18/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
406-221-1MTONVOY, LLC - MT453FBUTTENOCLLIKNOWN11/13/2012Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
406-221-2MTONVOY, LLC - MT453FBUTTENOCLLIKNOWN11/13/2012Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
406-221-3MTMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229BUTTENOCLLIKNOWN02/06/2007Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
406-221-4MTONVOY, LLC - MT453FBUTTENOCLLIKNOWN11/13/2012Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
406-221-5MTONVOY, LLC - MT453FBUTTENOCLLIKNOWN11/13/2012Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
406-221-6MTNEW CINGULAR WIRELESS PCS, LLC6010BUTTENOCLLIKNOWN10/07/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
406-221-7MTBRESNAN BROADBAND OF MONTANA, LLC - MT [CHARTER]008EBUTTENOCLLIKNOWN07/10/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
406-221-8MTTELNYX LLC073HBUTTENOCLLIKNOWN07/14/2020Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
406-221-9MTAT&T - LOCAL7421BUTTEHLNAMTMAKMDN/APrefix Type: WIRELESS
Switch Name: HELENA
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info