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
406-218	MT	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	MISSOULA	MSSLMTMACMD	08/03/2004	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: MSSLMTMACMD))
406-218 is split into 1,000-number blocks - detail below
406-218-0XXX	MT	NEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)	0003291192	RMD0036909	6010	MISSOULA	MSSLMTAG5MD	05/11/2023	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: MSSLMTAG5MD))
406-218-1XXX	MT	NEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)	0003291192	RMD0036909	6010	MISSOULA	MSSLMTAG5MD	07/20/2006	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: MSSLMTAG5MD))
406-218-2XXX	MT	LEVEL 3 COMMUNICATIONS, LLC - MT (Lumen Technologies, Inc)		N/A	9415	MISSOULA	NOCLLIKNOWN	03/22/2016	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
406-218-3XXX	MT	QWEST CORPORATION	0003746757	RMD0006389	9636	MISSOULA	MSSLMTMADS0	02/01/2013	Prefix Type: RBOC Switch Name: MISSOULA Switch Type: WECO 5ESS (Digital) LATA: Great Falls MT (648) Tandem: MSSLMTMA03T 🔧 Explore Switch(CLLI: MSSLMTMADS0))
406-218-4XXX	MT	LEVEL 3 COMMUNICATIONS, LLC - MT (Lumen Technologies, Inc)		N/A	9415	MISSOULA	MSSLMTMADS0	08/03/2022	Prefix Type: CLEC Switch Name: MISSOULA Switch Type: WECO 5ESS (Digital) LATA: Great Falls MT (648) Tandem: MSSLMTMA03T 🔧 Explore Switch(CLLI: MSSLMTMADS0))
406-218-5XXX	MT	QWEST CORPORATION	0003746757	RMD0006389	9636	MISSOULA	MSSLMTMADS0	02/01/2013	Prefix Type: RBOC Switch Name: MISSOULA Switch Type: WECO 5ESS (Digital) LATA: Great Falls MT (648) Tandem: MSSLMTMA03T 🔧 Explore Switch(CLLI: MSSLMTMADS0))
406-218-6XXX	MT	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	MISSOULA	MSSLMTMACMD	01/25/2021	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: MSSLMTMACMD))
406-218-7XXX	MT	CENTURYLINK COMMUNICATIONS, LLC (Lumen Technologies, Inc)	0031422439	RMD0006976	508J	MISSOULA	HLNAMTMAUMD	05/16/2017	Prefix Type: IPES Switch Name: DILLON Switch Type: N/A LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: HLNAMTMAUMD))
406-218-8XXX	MT	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT (Verizon Wireless)	0001627702	RMD0003346	6564	MISSOULA	HLNAMTMAX1X	08/05/2004	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: HLNAMTMAX1X))
406-218-9XXX	MT	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	MISSOULA	MSSLMTMACMD	08/05/2004	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: MSSLMTMACMD))