Input a CLLI:

Tip: A Partial CLLI can be entered, but must contain a minimum of the first 6 characters. I.E. 'DLLSTX'

If you were a paid member, you could be loading this into any version of Excel or Access (or any other software that understands CSV) right now for less than you paid for your breakfast or lunch today. If you are a member please login to access this and other functionality.
npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
312-326ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS000/00/0000Prefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-328ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS000/00/0000Prefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-528ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS000/00/0000Prefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
Thousands block for 312-528
312-528-0ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-528-1ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-528-4ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-528-6ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-528-8ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-567ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS000/00/0000Prefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-570ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS000/00/0000Prefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-674ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS000/00/0000Prefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
Thousands block for 312-674
312-674-0ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-674-1ILONVOY SPECTRUM, LLC (Inteliquent)624HCHICGOZN01CHCGILCADS012/08/2021Prefix Type: WIRELESS
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-674-2ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-674-3ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-674-4ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-674-5ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-674-8ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-674-9ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-791ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS000/00/0000Prefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-808ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS000/00/0000Prefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-945ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS000/00/0000Prefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
Thousands block for 312-945
312-945-3ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-945-4ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS0N/APrefix Type: RBOC
Switch Name: CHCG CALUMET DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
This information is not guaranteed to be accurate. User assumes all risk for any loss or gain resulting from use of this data.
Although I strive for accuracy and prompt updates of changed information, it is possible that there may be errors. If you see one, could you please report it?
Please report all errors, flames, questions, suggestions, and thanks to Paul Timmins
Please see the Frequently Asked Questions page if you have any questions.
Copyright ©2001-2023, Paul Timmins/Timmins Technologies, LLC. All rights reserved
Website Design and User Interface ©2010, Adam Botbyl/Revolutionary Solutions, LLC.
Colocation generously provided by Clear Rate Communications, Inc
Has this site changed your life? Made your job easier? I always love Fanmail and Suggestions.