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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🔎 Tip: Click any Company, OCN, Rate Center, or CLLI to explore related telecom data

npa-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
406-200MTTELEPORT COMMUNICATIONS AMERICA MT - LLC (AT&T)N/AN/A771GBILLINGSBLNGMTWEBMD04/17/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Billings MT (650)
Tandem: N/A
🔧 Explore Switch(CLLI: BLNGMTWEBMD))
🕘 Prefix History
🔎 Explore Carrier Information
406-200 is split into 1,000-number blocks - detail below
406-200-6XXXMTTELEPORT COMMUNICATIONS AMERICA MT - LLC (AT&T)N/AN/A771GBILLINGSBLNGMTWEBMD04/17/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Billings MT (650)
Tandem: N/A
🔧 Explore Switch(CLLI: BLNGMTWEBMD))
🕘 Prefix History
🔎 Explore Carrier Information
406-281MTTELEPORT COMMUNICATIONS AMERICA MT - LLC (AT&T)N/AN/A771GBILLINGSBLNGMTWEBMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Billings MT (650)
Tandem: N/A
🔧 Explore Switch(CLLI: BLNGMTWEBMD))
🕘 Prefix History
🔎 Explore Carrier Information
406-281 is split into 1,000-number blocks - detail below
406-281-9XXXMTTELEPORT COMMUNICATIONS AMERICA MT - LLC (AT&T)N/AN/A771GBILLINGSBLNGMTWEBMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Billings MT (650)
Tandem: N/A
🔧 Explore Switch(CLLI: BLNGMTWEBMD))
🕘 Prefix History
🔎 Explore Carrier Information
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