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
918-738OKSOUTHWESTERN BELL9533RALSTONRLTNOKMARS100/00/0000Prefix Type: RBOC
Switch Name: RALSTON
Switch Type: Northern Telecom Remote Switching Center
LATA: Tulsa OK (538)
Tandem: TULSOKTB03T
Detailed Switch Info
Thousands block for 918-738
918-738-1OKSOUTHWESTERN BELL9533RALSTONRLTNOKMARS1N/APrefix Type: RBOC
Switch Name: RALSTON
Switch Type: Northern Telecom Remote Switching Center
LATA: Tulsa OK (538)
Tandem: TULSOKTB03T
Detailed Switch Info
918-738-4OKSOUTHWESTERN BELL9533RALSTONRLTNOKMARS1N/APrefix Type: RBOC
Switch Name: RALSTON
Switch Type: Northern Telecom Remote Switching Center
LATA: Tulsa OK (538)
Tandem: TULSOKTB03T
Detailed Switch Info