TelcoData.US: Search by Area Code / Exchange

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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
410-472	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	SPARKSGLNC	MANRMDMNRS0	00/00/0000	Prefix Type: RBOC Switch Name: SPARKS-GLENCOE Switch Type: WECO 5ESS Remote (5A RSM) LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: MANRMDMNRS0))
410-472 is split into 1,000-number blocks - detail below
410-472-0XXX	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	SPARKSGLNC	MANRMDMNRS0	N/A	Prefix Type: RBOC Switch Name: SPARKS-GLENCOE Switch Type: WECO 5ESS Remote (5A RSM) LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: MANRMDMNRS0))
410-472-1XXX	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	SPARKSGLNC	MANRMDMNRS0	N/A	Prefix Type: RBOC Switch Name: SPARKS-GLENCOE Switch Type: WECO 5ESS Remote (5A RSM) LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: MANRMDMNRS0))
410-472-2XXX	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	SPARKSGLNC	MANRMDMNRS0	N/A	Prefix Type: RBOC Switch Name: SPARKS-GLENCOE Switch Type: WECO 5ESS Remote (5A RSM) LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: MANRMDMNRS0))
410-472-3XXX	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	SPARKSGLNC	MANRMDMNRS0	N/A	Prefix Type: RBOC Switch Name: SPARKS-GLENCOE Switch Type: WECO 5ESS Remote (5A RSM) LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: MANRMDMNRS0))
410-472-4XXX	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	SPARKSGLNC	MANRMDMNRS0	N/A	Prefix Type: RBOC Switch Name: SPARKS-GLENCOE Switch Type: WECO 5ESS Remote (5A RSM) LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: MANRMDMNRS0))
410-472-5XXX	MD	LEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)	0015338122	RMD0006112	6119	SPARKSGLNC	NOCLLIKNOWN	03/10/2011	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
410-472-6XXX	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	SPARKSGLNC	MANRMDMNRS0	N/A	Prefix Type: RBOC Switch Name: SPARKS-GLENCOE Switch Type: WECO 5ESS Remote (5A RSM) LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: MANRMDMNRS0))
410-472-7XXX	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	SPARKSGLNC	MANRMDMNRS0	N/A	Prefix Type: RBOC Switch Name: SPARKS-GLENCOE Switch Type: WECO 5ESS Remote (5A RSM) LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: MANRMDMNRS0))
410-472-8XXX	MD	CORE COMMUNICATIONS, INC.- MD		N/A	2593	SPARKSGLNC	NOCLLIKNOWN	04/12/2019	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
410-472-9XXX	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	SPARKSGLNC	MANRMDMNRS0	N/A	Prefix Type: RBOC Switch Name: SPARKS-GLENCOE Switch Type: WECO 5ESS Remote (5A RSM) LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: MANRMDMNRS0))