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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
630-770	IL	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	AURORA	CHCGILMF4MD	07/13/2006	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF4MD))
630-770 is split into 1,000-number blocks - detail below
630-770-0XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	AURORA	CHCGILMF2MD	10/06/2006	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF2MD))
630-770-1XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	AURORA	CHCGILMF2MD	05/07/2007	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF2MD))
630-770-2XXX	IL	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	AURORA	CHCGILMF4MD	11/01/2006	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF4MD))
630-770-3XXX	IL	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	AURORA	CHCGILMF4MD	10/02/2006	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF4MD))
630-770-4XXX	IL	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	AURORA	CHCGILMF4MD	10/02/2006	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF4MD))
630-770-5XXX	IL	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	AURORA	CHCGILMF4MD	08/31/2006	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF4MD))
630-770-6XXX	IL	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	AURORA	CHCGILMF4MD	08/31/2006	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF4MD))
630-770-7XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	AURORA	CHCGILMF2MD	07/20/2006	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF2MD))
630-770-8XXX	IL	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	AURORA	CHCGILMF4MD	07/20/2006	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF4MD))
630-770-9XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	AURORA	CHCGILMF2MD	07/20/2006	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF2MD))