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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
256-807	AL	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL (Verizon Communications)	0003290673	RMD0003382	6804	HEFLIN	BRHMAL41AMD	08/21/2020	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Birmingham AL (476) Tandem: N/A 🔧 Explore Switch(CLLI: BRHMAL41AMD)) 🕘 Prefix History 🔎 Explore Carrier Information 📡 Find related FCC/ISED radio licenses
256-807 is split into 1,000-number blocks - detail below
256-807-0XXX	AL	ONVOY SPECTRUM, LLC (Sinch US Holding, Inc.)	0024415002	RMD0002045	624H	HEFLIN	NOCLLIKNOWN	05/26/2023	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Birmingham AL (476) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) 🕘 Prefix History 🔎 Explore Carrier Information 📡 Find related FCC/ISED radio licenses
256-807-1XXX	AL	TELNYX LLC (TELNYX LLC)	0018998724	RMD0001645	073H	HEFLIN	NOCLLIKNOWN	09/08/2020	Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: Birmingham AL (476) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) 🕘 Prefix History 🔎 Explore Carrier Information
256-807-2XXX	AL	ONVOY, LLC - AL (Sinch)	0004323028	RMD0001966	604E	HEFLIN	NOCLLIKNOWN	05/24/2021	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Birmingham AL (476) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) 🕘 Prefix History 🔎 Explore Carrier Information
256-807-3XXX	AL	ONVOY, LLC - AL (Sinch)	0004323028	RMD0001966	604E	HEFLIN	NOCLLIKNOWN	05/24/2021	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Birmingham AL (476) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) 🕘 Prefix History 🔎 Explore Carrier Information
256-807-5XXX	AL	LEVEL 3 COMMUNICATIONS, LLC - AL (Lumen Technologies, Inc)	0015338122	RMD0006112	5255	HEFLIN	NOCLLIKNOWN	10/27/2020	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Birmingham AL (476) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) 🕘 Prefix History 🔎 Explore Carrier Information
256-807-6XXX	AL	TELEPORT COMMUNICATIONS AMERICA, LLC - AL (AT&T)	0004274114	RMD0003897	8271	HEFLIN	NOCLLIKNOWN	10/23/2020	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Birmingham AL (476) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) 🕘 Prefix History 🔎 Explore Carrier Information
256-807-7XXX	AL	BOOST SUBSCRIBERCO L.L.C.	0037698057	RMD0031843	490J	HEFLIN	NOCLLIKNOWN	10/23/2023	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Birmingham AL (476) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) 🕘 Prefix History 🔎 Explore Carrier Information 📡 Find related FCC/ISED radio licenses