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
937-764OHOHIO BELL TEL CO (AT&T)9321BELFASTBLFSOH76RS100/00/0000Prefix Type: RBOC
Switch Name: BELFAST RS1
Switch Type: N/A
LATA: Dayton OH (328)
Tandem: DYTNOH225GT
Detailed Switch Info
Thousands block for 937-764
937-764-1OHOHIO BELL TEL CO (AT&T)9321BELFASTBLFSOH76RS1N/APrefix Type: RBOC
Switch Name: BELFAST RS1
Switch Type: N/A
LATA: Dayton OH (328)
Tandem: DYTNOH225GT
Detailed Switch Info