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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
682-503	TX	LEVEL 3 OF TELECOM OF TEXAS, LLC - TX (Lumen Technologies, Inc)	0015338122	RMD0006112	7516	EULESS	DLLFTXFQDS1	07/05/2001	Prefix Type: CLEC Switch Name: DALLAS 1 Switch Type: N/A LATA: Dallas TX (552) Tandem: N/A 🔧 Explore Switch(CLLI: DLLFTXFQDS1))
682-503 is split into 1,000-number blocks - detail below
682-503-0XXX	TX	LEVEL 3 OF TELECOM OF TEXAS, LLC - TX (Lumen Technologies, Inc)	0015338122	RMD0006112	7516	EULESS	DLLFTXFQDS1	N/A	Prefix Type: CLEC Switch Name: DALLAS 1 Switch Type: N/A LATA: Dallas TX (552) Tandem: N/A 🔧 Explore Switch(CLLI: DLLFTXFQDS1))
682-503-1XXX	TX	BANDWIDTH.COM CLEC, LLC - TX	0017042060	RMD0003709	004F	EULESS	NOCLLIKNOWN	09/23/2010	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Dallas TX (552) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
682-503-2XXX	TX	LEVEL 3 COMMUNICATIONS, LLC - TX (Lumen Technologies, Inc)	0015338122	RMD0006112	6114	EULESS	NOCLLIKNOWN	04/13/2006	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Dallas TX (552) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
682-503-3XXX	TX	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	EULESS	NOCLLIKNOWN	01/07/2025	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Dallas TX (552) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
682-503-4XXX	TX	TWC IP ENABLED SERVICES, LLC		N/A	793K	EULESS	NOCLLIKNOWN	05/31/2007	Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: Dallas TX (552) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
682-503-5XXX	TX	LEVEL 3 OF TELECOM OF TEXAS, LLC - TX (Lumen Technologies, Inc)	0015338122	RMD0006112	7516	EULESS	DLLFTXFQDS1	N/A	Prefix Type: CLEC Switch Name: DALLAS 1 Switch Type: N/A LATA: Dallas TX (552) Tandem: N/A 🔧 Explore Switch(CLLI: DLLFTXFQDS1))
682-503-6XXX	TX	TWC IP ENABLED SERVICES, LLC		N/A	793K	EULESS	NOCLLIKNOWN	08/17/2006	Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: Dallas TX (552) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
682-503-7XXX	TX	LEVEL 3 COMMUNICATIONS, LLC - TX (Lumen Technologies, Inc)	0015338122	RMD0006112	6114	EULESS	NOCLLIKNOWN	04/13/2006	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Dallas TX (552) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
682-503-8XXX	TX	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	0003733813	RMD0003303	671J	EULESS	NOCLLIKNOWN	06/14/2007	Prefix Type: UNKNOWN Switch Name: N/A Switch Type: N/A LATA: Dallas TX (552) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
682-503-9XXX	TX	BANDWIDTH.COM CLEC, LLC - TX	0017042060	RMD0003709	004F	EULESS	NOCLLIKNOWN	10/01/2010	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Dallas TX (552) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))