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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
224-388	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMFCM2	02/18/2005	Prefix Type: PCS Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMFCM2))
224-388 is split into 1,000-number blocks - detail below
224-388-0XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMFCM2	02/18/2005	Prefix Type: PCS Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMFCM2))
224-388-1XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMFCM2	10/19/2005	Prefix Type: PCS Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMFCM2))
224-388-2XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMFCM2	06/06/2006	Prefix Type: PCS Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMFCM2))
224-388-3XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMFCM2	06/22/2005	Prefix Type: PCS Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMFCM2))
224-388-4XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMFCM2	02/14/2006	Prefix Type: PCS Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMFCM2))
224-388-5XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMFCM2	02/14/2006	Prefix Type: PCS Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMFCM2))
224-388-6XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMFCM2	06/22/2005	Prefix Type: PCS Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMFCM2))
224-388-7XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMFCM2	05/24/2006	Prefix Type: PCS Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMFCM2))
224-388-8XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMFCM2	03/04/2005	Prefix Type: PCS Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMFCM2))
224-388-9XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMFCM2	10/19/2005	Prefix Type: PCS Switch Name: CHICAGO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMFCM2))