TelcoData.US: Search for Area Codes / Exchanges by Rate Center & State

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npa-nxx	State	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
419-256	OH	BRIGHTSPEED OF NORTHWEST OHIO, INC. (Lumen Technologies, Inc)	0002938843	RMD0006396	0661	GRELTNMLNT	GRTNOHXARP0	00/00/0000	Prefix Type: ICO Switch Name: GRELTON Switch Type: N/A LATA: Toledo OH (326) Tandem: N/A 🔧 Explore Switch(CLLI: GRTNOHXARP0))
419-437	OH	QUALSTAR COMMUNICATIONS, INC. - OH	0006761415	RMD0003972	2094	GRELTNMLNT	DFNCOHBZDS0	08/21/2001	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Toledo OH (326) Tandem: N/A 🔧 Explore Switch(CLLI: DFNCOHBZDS0))
419-550	OH	BRIGHTSPEED OF NORTHWEST OHIO, INC. (Lumen Technologies, Inc)	0002938843	RMD0006396	0661	GRELTNMLNT	GRTNOHXARP0	05/18/2001	Prefix Type: ICO Switch Name: GRELTON Switch Type: N/A LATA: Toledo OH (326) Tandem: N/A 🔧 Explore Switch(CLLI: GRTNOHXARP0))
419-550 is split into 1,000-number blocks - detail below
419-550-0XXX	OH	BRIGHTSPEED OF NORTHWEST OHIO, INC. (Lumen Technologies, Inc)	0002938843	RMD0006396	0661	GRELTNMLNT	GRTNOHXARP0	N/A	Prefix Type: ICO Switch Name: GRELTON Switch Type: N/A LATA: Toledo OH (326) Tandem: N/A 🔧 Explore Switch(CLLI: GRTNOHXARP0))
419-550-1XXX	OH	LEVEL 3 COMMUNICATIONS, LLC - OH (Lumen Technologies, Inc)	0015338122	RMD0006112	4863	GRELTNMLNT	NOCLLIKNOWN	02/16/2007	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Toledo OH (326) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
419-550-5XXX	OH	TWC IP ENABLED SERVICES, LLC		N/A	793K	GRELTNMLNT	NOCLLIKNOWN	12/12/2007	Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: Toledo OH (326) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
419-550-7XXX	OH	CENTURYLINK COMMUNICATIONS, LLC (Lumen Technologies, Inc)	0031422439	RMD0006976	508J	GRELTNMLNT	NPLNOHXARMD	03/19/2014	Prefix Type: IPES Switch Name: NAPOLEON Switch Type: N/A LATA: Toledo OH (326) Tandem: N/A 🔧 Explore Switch(CLLI: NPLNOHXARMD))
419-550-8XXX	OH	PEERLESS NETWORK OF OHIO, LLC - OH		N/A	284F	GRELTNMLNT	NOCLLIKNOWN	12/06/2013	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Toledo OH (326) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))