Input an Area Code (required) followed by the Prefix, or Exchange (optional):
-
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-nxxState/ProvinceCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
847-871ILLEVEL 3 COMMUNICATIONS, LLC - IL (Lumen Technologies, Inc)0015338122RMD00061126115ELK GROVECHCGILGMDS700/00/0000Prefix Type: CLEC
Switch Name: CHICAGO
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCGILGMDS7))
847-871 is split into 1,000-number blocks - detail below
847-871-0XXXILLEVEL 3 COMMUNICATIONS, LLC - IL (Lumen Technologies, Inc)0015338122RMD00061126115ELK GROVECHCGILGMDS708/28/1998Prefix Type: CLEC
Switch Name: CHICAGO
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCGILGMDS7))
847-871-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329ELK GROVEEGVGILEGDS103/12/1999Prefix Type: RBOC
Switch Name: ELK GROVE EG DS1
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: EGVGILEGDS1))
847-871-2XXXILMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229ELK GROVECHCGILTCDS406/01/2017Prefix Type: CLEC
Switch Name: CHICGOZN01
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCGILTCDS4))
847-871-3XXXILT-MOBILE USA, INC. (T-Mobile US, Inc)0017078262RMD00190516529ELK GROVECHCGILMF2MD09/13/2004Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCGILMF2MD))
847-871-4XXXILFIRST COMMUNICATIONS, LLC0003764487RMD0014015460KELK GROVECHCGILWUX6X06/18/2004Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCGILWUX6X))
847-871-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329ELK GROVEEGVGILEGDS103/12/1999Prefix Type: RBOC
Switch Name: ELK GROVE EG DS1
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: EGVGILEGDS1))
847-871-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329ELK GROVEEGVGILEGDS106/21/2000Prefix Type: RBOC
Switch Name: ELK GROVE EG DS1
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: EGVGILEGDS1))
847-871-7XXXILT-MOBILE USA, INC. (T-Mobile US, Inc)0017078262RMD00190516529ELK GROVECHCGILMF2MD10/14/2004Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCGILMF2MD))
847-871-8XXXILFIRST COMMUNICATIONS, LLC0003764487RMD0014015460KELK GROVECHCGILWUX6X10/31/2016Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCGILWUX6X))
847-871-9XXXILBANDWIDTH.COM CLEC, LLC - IL0017042060RMD0003709984EELK GROVENOCLLIKNOWN03/22/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
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.