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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
475-233	CT	NEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)	0003291192	RMD0036909	4036	WATERBURY	MDTWCTNIBMD	11/08/2016	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Connecticut (920) Tandem: N/A 🔧 Explore Switch(CLLI: MDTWCTNIBMD))
475-233 is split into 1,000-number blocks - detail below
475-233-0XXX	CT	TELNYX LLC	0018998724	RMD0001645	073H	WATERBURY	NOCLLIKNOWN	03/27/2017	Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: Connecticut (920) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
475-233-1XXX	CT	ONVOY, LLC - CT (Sinch)	0004323028	RMD0001966	639C	WATERBURY	NOCLLIKNOWN	05/10/2017	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Connecticut (920) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
475-233-2XXX	CT	COMCAST IP PHONE, LLC (Comcast)	0008497687	RMD0003552	318J	WATERBURY	MNCHCTAVDS0	09/26/2017	Prefix Type: IPES Switch Name: MANCHESTER Switch Type: Northern Telecom DMS100/200 Digital Host LATA: Connecticut (920) Tandem: N/A 🔧 Explore Switch(CLLI: MNCHCTAVDS0))
475-233-3XXX	CT	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (Verizon Wireless)	0004516381	RMD0003408	6388	WATERBURY	HRFRCTASBMD	11/01/2017	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Connecticut (920) Tandem: N/A 🔧 Explore Switch(CLLI: HRFRCTASBMD))
475-233-4XXX	CT	PEERLESS NETWORK OF CONNECTICUT, LLC - CT		N/A	539F	WATERBURY	NOCLLIKNOWN	08/27/2018	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Connecticut (920) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
475-233-5XXX	CT	COMCAST IP PHONE, LLC (Comcast)	0008497687	RMD0003552	318J	WATERBURY	MNCHCTAVDS0	10/03/2017	Prefix Type: IPES Switch Name: MANCHESTER Switch Type: Northern Telecom DMS100/200 Digital Host LATA: Connecticut (920) Tandem: N/A 🔧 Explore Switch(CLLI: MNCHCTAVDS0))
475-233-6XXX	CT	OMNIPOINT COMMUNICATIONS, INC. - CT (T-Mobile US, Inc)		N/A	6624	WATERBURY	BLFDCTAP2MD	07/10/2017	Prefix Type: PCS Switch Name: BLOOMFIELD Switch Type: N/A LATA: Connecticut (920) Tandem: N/A 🔧 Explore Switch(CLLI: BLFDCTAP2MD))
475-233-7XXX	CT	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	WATERBURY	BLFDCTAP2MD	03/23/2018	Prefix Type: PCS Switch Name: BLOOMFIELD Switch Type: N/A LATA: Connecticut (920) Tandem: N/A 🔧 Explore Switch(CLLI: BLFDCTAP2MD))
475-233-8XXX	CT	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (Verizon Wireless)	0004516381	RMD0003408	6388	WATERBURY	HRFRCTASBMD	07/19/2018	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Connecticut (920) Tandem: N/A 🔧 Explore Switch(CLLI: HRFRCTASBMD))
475-233-9XXX	CT	NEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)	0003291192	RMD0036909	4036	WATERBURY	MDTWCTNIBMD	11/09/2016	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Connecticut (920) Tandem: N/A 🔧 Explore Switch(CLLI: MDTWCTNIBMD))