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
737-309TXCALLWORKS CORPORATION475JAUSTINAUSTTXGR67Z11/01/2021Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Austin TX (558)
Tandem: N/A
Detailed Switch Info
Thousands block for 737-309
737-309-1TXCALLWORKS CORPORATION475JAUSTINAUSTTXGR67Z11/01/2021Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Austin TX (558)
Tandem: N/A
Detailed Switch Info