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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
503-473	OR	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	0004999405	RMD0002957	7229	PORTLAND	PTLDOR69X9X	00/00/0000	Prefix Type: CLEC Switch Name: PORTLAND Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLDOR69X9X))
503-473 is split into 1,000-number blocks - detail below
503-473-0XXX	OR	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	0004999405	RMD0002957	7229	PORTLAND	PTLDOR69X9X	N/A	Prefix Type: CLEC Switch Name: PORTLAND Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLDOR69X9X))
503-473-1XXX	OR	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	PORTLAND	PTLJORIY0MD	05/19/2003	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLJORIY0MD))
503-473-2XXX	OR	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	PORTLAND	PTLJORIY0MD	05/19/2003	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLJORIY0MD))
503-473-3XXX	OR	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	PORTLAND	PTLJORIY0MD	05/19/2003	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLJORIY0MD))
503-473-4XXX	OR	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	PORTLAND	PTLJORIY0MD	05/19/2003	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLJORIY0MD))
503-473-5XXX	OR	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	PORTLAND	PTLJORIY0MD	05/19/2003	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLJORIY0MD))
503-473-6XXX	OR	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	PORTLAND	PTLJORIY0MD	03/23/2004	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLJORIY0MD))
503-473-7XXX	OR	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	PORTLAND	PTLJORIY0MD	10/31/2003	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLJORIY0MD))
503-473-8XXX	OR	ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM		N/A	7172	PORTLAND	NOCLLIKNOWN	04/22/2003	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
503-473-9XXX	OR	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	PORTLAND	PTLJORIY0MD	07/07/2005	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A 🔧 Explore Switch(CLLI: PTLJORIY0MD))