Recent prefix assignments

349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 31

ONVOY, LLC - CA 27

NEW CINGULAR WIRELESS PCS, LLC - IL 27

ONVOY, LLC - NJ 15

New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
—	715-647	7XXX8XXX · 2 holders which blocks →	TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK	1155	PLUM CITY	WI
—	715-648	not yet reported which blocks →	LAKELAND COMMUNICATIONS GROUP, LLC	0902	CUSHING	WI
—	715-649	0XXX2XXX · 2 holders which blocks →	FRONTIER COMMUNICATIONS OF WISCONSIN LLC	0870	ARGONNE	WI
—	715-652	7XXX8XXX9XXX · 3 holders which blocks →	CENTRAL STATE TEL. CO	0859	AUBURNDALE	WI
—	715-653	5XXX6XXX · 2 holders which blocks →	BRIGHTSPEED OF NORTHWEST WISCONSIN, LLC	0950	LEWIS	WI
—	715-654	7XXX8XXX · 2 holders which blocks →	MIDWAY TEL. CO.	0909	DORCHESTER	WI
—	715-656	2XXX6XXX8XXX · 3 holders which blocks →	BRIGHTSPEED OF NORTHWEST WISCONSIN, LLC	0950	DANBURY	WI
—	715-658	not yet reported which blocks →	CHIBARDUN TEL. COOP., INC.	0861	SAND CREEK	WI
—	715-659	0XXX6XXX7XXX9XXX · 3 holders which blocks →	FRONTIER NORTH INC. - WI	0886	SPENCER	WI
—	715-662	0XXX3XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	BRIGHTSPEED OF CENTRAL WISCONSIN, LLC	1159	TAYLOR	WI
—	715-664	none assigned yet which blocks →	WEST WISCONSIN TELCOM COOP., INC.	0971	DOWNSVILLE	WI
—	715-665	1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK	1155	KNAPP	WI
—	715-667	6XXX7XXX8XXX · 2 holders which blocks →	BRIGHTSPEED OF WESTERN WISCONSIN, LLC	0922	BOYD	WI
—	715-668	0XXX1XXX3XXX8XXX · 4 holders which blocks →	BRIGHTSPEED OF NORTHERN WISCONSIN, LLC	0956	JUMP RIVER	WI
—	715-669	6XXX9XXX · 2 holders which blocks →	BRIGHTSPEED OF WESTERN WISCONSIN, LLC	0959	THORP	WI
—	715-671	0XXX1XXX3XXX6XXX7XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CUMBERLAND	WI
—	715-672	7XXX which blocks →	NELSON COMMUNICATIONS COOPERATIVE	0918	DURAND	WI
—	715-673	not yet reported which blocks →	NELSON COMMUNICATIONS COOPERATIVE	0918	NELSON	WI
—	715-674	0XXX8XXX · 2 holders which blocks →	TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK	1155	LAONA	WI
—	715-675	not yet reported which blocks →	FRONTIER NORTH INC. - WI	0886	WAUSAU	WI
—	715-676	6XXX7XXX · 2 holders which blocks →	CENTRAL STATE TEL. CO	0859	LINDSEY	WI
—	715-677	none assigned yet which blocks →	AMHERST TEL. CO.	0843	ROSHOLT	WI
—	715-678	5XXX7XXX8XXX · 3 holders which blocks →	MIDWAY TEL. CO.	0909	STETSONVL	WI
—	715-679	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	FRONTIER NORTH INC. - WI	0886	WAUSAU	WI
—	715-682	not yet reported which blocks →	BRIGHTSPEED OF NORTH CENTRAL WISCONSIN, LLC	0924	ASHLAND	WI
—	715-683	0XXX3XXX4XXX · 3 holders which blocks →	BADGER TELECOM, INC.	0844	CHILI	WI
—	715-684	none assigned yet which blocks →	BALDWIN TELECOM, INC.	0846	BALDWIN	WI
—	715-685	1XXX3XXX4XXX8XXX · 3 holders which blocks →	BRIGHTSPEED OF NORTH CENTRAL WISCONSIN, LLC	0924	ASHLAND	WI
—	715-686	1XXX6XXX · 2 holders which blocks →	BRIGHTSPEED OF NORTHERN WISCONSIN, LLC	0956	PRESQUE IS	WI
—	715-687	6XXX which blocks →	FRONTIER NORTH INC. - WI	0886	STRATFORD	WI
—	715-688	none assigned yet which blocks →	BALDWIN TELECOM, INC.	0846	BALDWIN	WI
—	715-689	not yet reported which blocks →	FARMERS INDEPENDENT TEL. CO.	0879	FALUN	WI
—	715-691	1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	HATLEY	WI
—	715-692	0XXX7XXX8XXX9XXX · 2 holders which blocks →	MOSINEE TEL. CO.	0915	MOSINEE	WI
—	715-693	not yet reported which blocks →	MOSINEE TEL. CO.	0915	MOSINEE	WI
—	715-694	not yet reported which blocks →	TRI-COUNTY TEL. COOP., INC.	0960	PLEASANTVL	WI
—	715-695	not yet reported which blocks →	TRI-COUNTY TEL. COOP., INC.	0960	STRUM	WI
—	715-696	8XXX which blocks →	NIAGARA TEL. CO.	0920	SPREADEAGL	WI
—	715-698	none assigned yet which blocks →	BALDWIN TELECOM, INC.	0846	WOODVILLE	WI
—	715-699	1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HAYWARD	WI
—	715-700	not yet reported which blocks →				WI
—	715-702	1XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BOYCEVILLE	WI
—	715-703	1XXX3XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BOYD	WI
—	715-704	1XXX6XXX7XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	COLFAX	WI
—	715-705	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - WI	225C	CHIPPEWFLS	WI
—	715-711	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	WI
—	715-717	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks →	WISCONSIN BELL INC	9327	EAU CLAIRE	WI
—	715-720	not yet reported which blocks →	WISCONSIN BELL INC	9327	CHIPPEWFLS	WI
—	715-723	not yet reported which blocks →	WISCONSIN BELL INC	9327	CHIPPEWFLS	WI
—	715-726	5XXX which blocks →	WISCONSIN BELL INC	9327	CHIPPEWFLS	WI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.