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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
541-628	OR	ONVOY, LLC - OR (Sinch)	0004323028	RMD0001966	750E	JOHN DAY	PTLEOREH3MD	09/04/2008	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLEOREH3MD))
541-628 is split into 1,000-number blocks - detail below
541-628-1XXX	OR	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR (Verizon Wireless)	0003290673	RMD0003382	5820	JOHN DAY	PTLDORWNAMD	07/25/2024	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLDORWNAMD))
541-628-3XXX	OR	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	JOHN DAY	NOCLLIKNOWN	03/21/2025	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
541-628-5XXX	OR	LEVEL 3 COMMUNICATIONS, LLC - OR (Lumen Technologies, Inc)	0015338122	RMD0006112	3234	JOHN DAY	NOCLLIKNOWN	01/27/2023	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
541-628-6XXX	OR	CENTURYLINK COMMUNICATIONS, LLC (Lumen Technologies, Inc)	0031422439	RMD0006976	508J	JOHN DAY	PTLDORWAXDX	10/25/2013	Prefix Type: IPES Switch Name: SHERIDAN Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLDORWAXDX))
541-628-7XXX	OR	ONVOY, LLC - OR (Sinch)	0004323028	RMD0001966	750E	JOHN DAY	PTLEOREH3MD	09/04/2008	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLEOREH3MD))
541-628-8XXX	OR	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	JOHN DAY	NOCLLIKNOWN	04/07/2025	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
541-628-9XXX	OR	BANDWIDTH.COM CLEC, LLC - OR	0017042060	RMD0003709	076F	JOHN DAY	NOCLLIKNOWN	11/12/2025	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))