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
903-945TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)N/A2154BIRTHRIGHTBRTHTXXARS000/00/0000Prefix Type: RBOC
Switch Name: BIRTHRIGHT
Switch Type: NTDMSRLC
LATA: Dallas TX (552)
Tandem: DLLSTXTA05T
🔧 Explore Switch(CLLI: BRTHTXXARS0))
903-945 is split into 1,000-number blocks - detail below
903-945-2XXXTXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)N/A2154BIRTHRIGHTBRTHTXXARS0N/APrefix Type: RBOC
Switch Name: BIRTHRIGHT
Switch Type: NTDMSRLC
LATA: Dallas TX (552)
Tandem: DLLSTXTA05T
🔧 Explore Switch(CLLI: BRTHTXXARS0))
903-945-3XXXTXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)N/A2154BIRTHRIGHTBRTHTXXARS0N/APrefix Type: RBOC
Switch Name: BIRTHRIGHT
Switch Type: NTDMSRLC
LATA: Dallas TX (552)
Tandem: DLLSTXTA05T
🔧 Explore Switch(CLLI: BRTHTXXARS0))
903-945-5XXXTXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)N/A2154BIRTHRIGHTBRTHTXXARS0N/APrefix Type: RBOC
Switch Name: BIRTHRIGHT
Switch Type: NTDMSRLC
LATA: Dallas TX (552)
Tandem: DLLSTXTA05T
🔧 Explore Switch(CLLI: BRTHTXXARS0))
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