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
773-261ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP000/00/0000Prefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
Thousands block for 773-261
773-261-0ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-261-1ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-261-2ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-261-3ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-261-4ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-261-5ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-261-6ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-261-7ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-261-8ILONVOY, LLC (Sinch)224CCHICGOZN05CHCGILAURP011/24/2021Prefix Type: CLEC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-287ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP000/00/0000Prefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-378ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP000/00/0000Prefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
Thousands block for 773-378
773-378-0ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-378-1ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-378-2ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-378-3ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-378-4ILBANDWIDTH.COM CLEC, LLC - IL984ECHICGOZN05CHCGILAURP009/09/2024Prefix Type: CLEC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-378-5ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-378-6ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-378-8ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-379ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP000/00/0000Prefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
Thousands block for 773-379
773-379-0ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-379-1ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-379-2ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-379-3ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-379-4ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-379-6ILSTRATUS NETWORKS495JCHICGOZN05CHCGILAURP008/26/2020Prefix Type: IPES
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-379-7ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-379-9ILONVOY SPECTRUM, LLC (Sinch)624HCHICGOZN05CHCGILAURP009/17/2024Prefix Type: WIRELESS
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-473ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP000/00/0000Prefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-626ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP000/00/0000Prefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-854ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP000/00/0000Prefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
Thousands block for 773-854
773-854-0ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-854-1ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-854-2ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-854-3ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-854-4ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-854-5ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-854-6ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-854-8ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-921ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP000/00/0000Prefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
Thousands block for 773-921
773-921-0ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-921-1ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-921-2ILNEW CINGULAR WIRELESS PCS, LLC - IL (AT&T Wireless)6534CHICGOZN05CHCGILAURP001/13/2025Prefix Type: WIRELESS
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-921-3ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-921-4ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-921-6ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-921-8ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
773-921-9ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN05CHCGILAURP0N/APrefix Type: RBOC
Switch Name: CHCZ 5
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
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