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
630-552ILILLINOIS BELL TEL CO (AT&T)9329PLANOPLANILPORS000/00/0000Prefix Type: RBOC
Switch Name: PLANO
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: LBRDILLM20T
Detailed Switch Info
Thousands block for 630-552
630-552-0ILILLINOIS BELL TEL CO (AT&T)9329PLANOPLANILPORS0N/APrefix Type: RBOC
Switch Name: PLANO
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: LBRDILLM20T
Detailed Switch Info
630-552-1ILILLINOIS BELL TEL CO (AT&T)9329PLANOPLANILPORS0N/APrefix Type: RBOC
Switch Name: PLANO
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: LBRDILLM20T
Detailed Switch Info
630-552-2ILILLINOIS BELL TEL CO (AT&T)9329PLANOPLANILPORS0N/APrefix Type: RBOC
Switch Name: PLANO
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: LBRDILLM20T
Detailed Switch Info
630-552-3ILILLINOIS BELL TEL CO (AT&T)9329PLANOPLANILPORS0N/APrefix Type: RBOC
Switch Name: PLANO
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: LBRDILLM20T
Detailed Switch Info
630-552-4ILILLINOIS BELL TEL CO (AT&T)9329PLANOPLANILPORS0N/APrefix Type: RBOC
Switch Name: PLANO
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: LBRDILLM20T
Detailed Switch Info
630-552-7ILILLINOIS BELL TEL CO (AT&T)9329PLANOPLANILPORS0N/APrefix Type: RBOC
Switch Name: PLANO
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: LBRDILLM20T
Detailed Switch Info
630-552-8ILILLINOIS BELL TEL CO (AT&T)9329PLANOPLANILPORS0N/APrefix Type: RBOC
Switch Name: PLANO
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: LBRDILLM20T
Detailed Switch Info
630-552-9ILILLINOIS BELL TEL CO (AT&T)9329PLANOPLANILPORS0N/APrefix Type: RBOC
Switch Name: PLANO
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: LBRDILLM20T
Detailed Switch Info