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-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
224-302ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS007/13/2012Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-302 is split into 1,000-number blocks - detail below
224-302-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS007/17/2012Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-399ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/04/2006Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-399 is split into 1,000-number blocks - detail below
224-399-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/05/2006Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-399-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/05/2006Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-572ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS008/21/2008Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-572 is split into 1,000-number blocks - detail below
224-572-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS008/22/2008Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-610 is split into 1,000-number blocks - detail below
224-610-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS002/23/2005Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-610-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS002/23/2005Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-610-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS002/23/2005Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-610-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS002/23/2005Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-610-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS002/23/2005Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-610-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS002/23/2005Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-610-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS003/16/2005Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS005/08/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665 is split into 1,000-number blocks - detail below
224-665-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS005/09/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS005/09/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS005/09/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS005/09/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS005/09/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS005/09/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS005/09/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS005/09/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS005/09/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-9XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS005/09/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS012/31/2013Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667 is split into 1,000-number blocks - detail below
224-667-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-9XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS012/31/2013Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668 is split into 1,000-number blocks - detail below
224-668-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-9XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS001/02/2014Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-772ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS009/23/2002Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-772 is split into 1,000-number blocks - detail below
224-772-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS009/25/2002Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-473ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS000/00/0000Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-473 is split into 1,000-number blocks - detail below
847-473-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-473-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-473-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-473-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-473-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-473-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-473-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-473-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-473-9XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-578ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS000/00/0000Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-689ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS000/00/0000Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-775ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS000/00/0000Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-775 is split into 1,000-number blocks - detail below
847-775-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS005/10/2000Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-775-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS009/21/1999Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-775-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS009/21/1999Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-785ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS000/00/0000Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-785 is split into 1,000-number blocks - detail below
847-785-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-785-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-785-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-785-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-785-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-785-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-785-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-785-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-785-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-887ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS000/00/0000Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-887 is split into 1,000-number blocks - detail below
847-887-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-887-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-887-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-887-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-887-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-887-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-887-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-887-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-887-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS0N/APrefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-935ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS000/00/0000Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-936ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS000/00/0000Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-937ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS000/00/0000Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
847-938ILILLINOIS BELL TEL CO (AT&T)N/A9329WAUKEGANNCHCILNCDS000/00/0000Prefix Type: RBOC
Switch Name: NORTH CHICAGO DS0
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILNE20T
🔧 Explore Switch(CLLI: NCHCILNCDS0))
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