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
618-360ILILLINOIS BELL TEL CO (AT&T)9329HARMONYHRMJILHMRS002/04/2002Prefix Type: RBOC
Switch Name: HARMONY
Switch Type: N/A
LATA: St.Louis MO (520)
Tandem: CENLILCE51T
Detailed Switch Info
Thousands block for 618-360
618-360-0ILILLINOIS BELL TEL CO (AT&T)9329HARMONYHRMJILHMRS0N/APrefix Type: RBOC
Switch Name: HARMONY
Switch Type: N/A
LATA: St.Louis MO (520)
Tandem: CENLILCE51T
Detailed Switch Info
618-755ILILLINOIS BELL TEL CO (AT&T)9329HARMONYHRMJILHMRS000/00/0000Prefix Type: RBOC
Switch Name: HARMONY
Switch Type: N/A
LATA: St.Louis MO (520)
Tandem: CENLILCE51T
Detailed Switch Info
Thousands block for 618-755
618-755-0ILTERRA NOVA TELECOM INC.145JHARMONYHRMJILHMRS012/18/2020Prefix Type: IPES
Switch Name: HARMONY
Switch Type: N/A
LATA: St.Louis MO (520)
Tandem: CENLILCE51T
Detailed Switch Info
618-755-4ILILLINOIS BELL TEL CO (AT&T)9329HARMONYHRMJILHMRS0N/APrefix Type: RBOC
Switch Name: HARMONY
Switch Type: N/A
LATA: St.Louis MO (520)
Tandem: CENLILCE51T
Detailed Switch Info
618-755-9ILILLINOIS BELL TEL CO (AT&T)9329HARMONYHRMJILHMRS0N/APrefix Type: RBOC
Switch Name: HARMONY
Switch Type: N/A
LATA: St.Louis MO (520)
Tandem: CENLILCE51T
Detailed Switch Info
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