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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
847-305	IL	LEVEL 3 COMMUNICATIONS, LLC - IL (Lumen Technologies, Inc)		N/A	6115	ARLIGTNHTS	CHCGILGMDS7	02/10/2005	Prefix Type: CLEC Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILGMDS7))
847-305 is split into 1,000-number blocks - detail below
847-305-0XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMF2MD	09/08/2005	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF2MD))
847-305-1XXX	IL	LEVEL 3 COMMUNICATIONS, LLC - IL (Lumen Technologies, Inc)		N/A	6115	ARLIGTNHTS	CHCGILGMDS7	02/18/2005	Prefix Type: CLEC Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILGMDS7))
847-305-2XXX	IL	LEVEL 3 COMMUNICATIONS, LLC - IL (Lumen Technologies, Inc)		N/A	6115	ARLIGTNHTS	CHCGILGMDS7	02/18/2005	Prefix Type: CLEC Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILGMDS7))
847-305-3XXX	IL	LEVEL 3 COMMUNICATIONS, LLC - IL (Lumen Technologies, Inc)		N/A	6115	ARLIGTNHTS	CHCGILGMDS7	02/18/2005	Prefix Type: CLEC Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILGMDS7))
847-305-4XXX	IL	LEVEL 3 COMMUNICATIONS, LLC - IL (Lumen Technologies, Inc)		N/A	6115	ARLIGTNHTS	CHCGILGMDS7	02/11/2005	Prefix Type: CLEC Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILGMDS7))
847-305-5XXX	IL	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL (Verizon Communications)	0004999405	RMD0002957	7196	ARLIGTNHTS	CHCHILLEDS0	02/12/2010	Prefix Type: CLEC Switch Name: CHICAGO ZONE Switch Type: WECO 5ESS (Digital) LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCHILLEDS0))
847-305-6XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMF2MD	10/31/2006	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF2MD))
847-305-7XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMF2MD	10/31/2006	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF2MD))
847-305-8XXX	IL	FIRST COMMUNICATIONS, LLC	0003764487	RMD0014015	460K	ARLIGTNHTS	CHCGILWUX6X	02/23/2005	Prefix Type: UNKNOWN Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILWUX6X))
847-305-9XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMF2MD	08/16/2005	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF2MD))