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.

🔎 Tip: Click any Company, OCN, Rate Center, or CLLI to explore related telecom data

npa-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
708-216ILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-327ILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-338ILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-343ILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-344ILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-345ILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410ILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410 is split into 1,000-number blocks - detail below
708-410-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-450ILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-493ILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-493 is split into 1,000-number blocks - detail below
708-493-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-493-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-493-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-493-9XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-538 is split into 1,000-number blocks - detail below
708-538-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS009/25/2013Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-538-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS009/25/2013Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-538-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS009/25/2013Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-538-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS009/25/2013Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-544ILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-547ILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-615ILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-615 is split into 1,000-number blocks - detail below
708-615-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-615-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-615-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-615-9XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-617 is split into 1,000-number blocks - detail below
708-617-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS005/25/2012Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-617-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS005/25/2012Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-617-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS005/25/2012Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-617-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS005/25/2012Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-617-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS005/25/2012Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649ILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649 is split into 1,000-number blocks - detail below
708-649-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-9XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BELLWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-681ILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786ILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786 is split into 1,000-number blocks - detail below
708-786-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS0N/APrefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-865ILILLINOIS BELL TEL CO (AT&T)N/A9329MAYWOODBLWDILBWDS000/00/0000Prefix Type: RBOC
Switch Name: BELLWOOD DS0
Switch Type: 5ESS
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
🔧 Explore Switch(CLLI: BLWDILBWDS0))
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
L'exactitude de ces renseignements n'est pas garantie. L'utilisateur assume l'entière responsabilité des pertes ou des gains découlant de l'utilisation de ces données.
Bien que je m'efforce d'assurer l'exactitude des informations et de les mettre à jour rapidement, des erreurs peuvent subsister. Si vous en voyez une, veuillez me la signaler.
Veuillez adresser vos commentaires, remarques, questions, suggestions et remerciements à Paul Timmins
Please see the Frequently Asked Questions page if you have any questions.
Copyright ©2001-2026, 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.