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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
803-623	SC	NEW CINGULAR WIRELESS PCS, LLC - GA (AT&T Wireless)	0003291192	RMD0036909	6214	CHESTER	CHESSCXAAMD	03/03/2014	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Columbia SC (434) Tandem: N/A 🔧 Explore Switch(CLLI: CHESSCXAAMD))
803-623 is split into 1,000-number blocks - detail below
803-623-0XXX	SC	NEW CINGULAR WIRELESS PCS, LLC - GA (AT&T Wireless)	0003291192	RMD0036909	6214	CHESTER	CHESSCXAAMD	06/30/2022	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Columbia SC (434) Tandem: N/A 🔧 Explore Switch(CLLI: CHESSCXAAMD))
803-623-1XXX	SC	NEW CINGULAR WIRELESS PCS, LLC - GA (AT&T Wireless)	0003291192	RMD0036909	6214	CHESTER	CHESSCXAAMD	06/30/2022	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Columbia SC (434) Tandem: N/A 🔧 Explore Switch(CLLI: CHESSCXAAMD))
803-623-2XXX	SC	NEW CINGULAR WIRELESS PCS, LLC - GA (AT&T Wireless)	0003291192	RMD0036909	6214	CHESTER	CHESSCXAAMD	06/30/2022	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Columbia SC (434) Tandem: N/A 🔧 Explore Switch(CLLI: CHESSCXAAMD))
803-623-3XXX	SC	NEW CINGULAR WIRELESS PCS, LLC - GA (AT&T Wireless)	0003291192	RMD0036909	6214	CHESTER	CHESSCXAAMD	08/17/2022	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Columbia SC (434) Tandem: N/A 🔧 Explore Switch(CLLI: CHESSCXAAMD))
803-623-4XXX	SC	NEW CINGULAR WIRELESS PCS, LLC - GA (AT&T Wireless)	0003291192	RMD0036909	6214	CHESTER	CHESSCXAAMD	08/17/2022	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Columbia SC (434) Tandem: N/A 🔧 Explore Switch(CLLI: CHESSCXAAMD))
803-623-5XXX	SC	NEW CINGULAR WIRELESS PCS, LLC - GA (AT&T Wireless)	0003291192	RMD0036909	6214	CHESTER	CHESSCXAAMD	08/17/2022	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Columbia SC (434) Tandem: N/A 🔧 Explore Switch(CLLI: CHESSCXAAMD))
803-623-6XXX	SC	TELEPORT COMMUNICATIONS AMERICA SC- LLC (AT&T)		N/A	635C	CHESTER	NOCLLIKNOWN	05/19/2021	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Columbia SC (434) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
803-623-7XXX	SC	NEW CINGULAR WIRELESS PCS, LLC - GA (AT&T Wireless)	0003291192	RMD0036909	6214	CHESTER	CHESSCXAAMD	08/17/2022	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Columbia SC (434) Tandem: N/A 🔧 Explore Switch(CLLI: CHESSCXAAMD))
803-623-8XXX	SC	NEW CINGULAR WIRELESS PCS, LLC - GA (AT&T Wireless)	0003291192	RMD0036909	6214	CHESTER	CHESSCXAAMD	09/27/2022	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Columbia SC (434) Tandem: N/A 🔧 Explore Switch(CLLI: CHESSCXAAMD))
803-623-9XXX	SC	NEW CINGULAR WIRELESS PCS, LLC - GA (AT&T Wireless)	0003291192	RMD0036909	6214	CHESTER	CHESSCXAAMD	03/04/2014	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Columbia SC (434) Tandem: N/A 🔧 Explore Switch(CLLI: CHESSCXAAMD))